./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 5e519f3a
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/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_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/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_3a33322d-d1e9-4546-aaf0-c724c2c770bb/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 c065a55f68f899d0f20fc5e1ef687a000c7e9a3454841ed8a67112aa421d143f
--- 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 20:46:47,513 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:46:47,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:46:47,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:46:47,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:46:47,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:46:47,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:46:47,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:46:47,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:46:47,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:46:47,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:46:47,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:46:47,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:46:47,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:46:47,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:46:47,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:46:47,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:46:47,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:46:47,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:46:47,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:46:47,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:46:47,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:46:47,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:46:47,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:46:47,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:46:47,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:46:47,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:46:47,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:46:47,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:46:47,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:46:47,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:46:47,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:46:47,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:46:47,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:46:47,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:46:47,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:46:47,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:46:47,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:46:47,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:46:47,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:46:47,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:46:47,585 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-11-02 20:46:47,606 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:46:47,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:46:47,607 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:46:47,608 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:46:47,608 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:46:47,609 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:46:47,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:46:47,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:46:47,610 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:46:47,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:46:47,610 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-02 20:46:47,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-02 20:46:47,611 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-02 20:46:47,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:46:47,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:46:47,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:46:47,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:46:47,612 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-02 20:46:47,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 20:46:47,613 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:46:47,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:46:47,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:46:47,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:46:47,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 20:46:47,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:46:47,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:46:47,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:46:47,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:46:47,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-02 20:46:47,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 20:46:47,616 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 20:46:47,616 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 20:46:47,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:46:47,617 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_3a33322d-d1e9-4546-aaf0-c724c2c770bb/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c065a55f68f899d0f20fc5e1ef687a000c7e9a3454841ed8a67112aa421d143f
[2022-11-02 20:46:47,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:46:48,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:46:48,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:46:48,014 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:46:48,015 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:46:48,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c
[2022-11-02 20:46:48,089 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/data/9eb6432c1/723ffda2c74a47938d02330eda00d7d9/FLAG4093f165b
[2022-11-02 20:46:48,618 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:46:48,619 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c
[2022-11-02 20:46:48,642 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/data/9eb6432c1/723ffda2c74a47938d02330eda00d7d9/FLAG4093f165b
[2022-11-02 20:46:48,972 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/data/9eb6432c1/723ffda2c74a47938d02330eda00d7d9
[2022-11-02 20:46:48,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:46:48,977 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:46:48,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:46:48,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:46:48,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:46:48,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:46:48" (1/1) ...
[2022-11-02 20:46:48,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c94616f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:48, skipping insertion in model container
[2022-11-02 20:46:48,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:46:48" (1/1) ...
[2022-11-02 20:46:48,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:46:49,043 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:46:49,293 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_3a33322d-d1e9-4546-aaf0-c724c2c770bb/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[1997,2010]
[2022-11-02 20:46:49,299 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_3a33322d-d1e9-4546-aaf0-c724c2c770bb/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[2366,2379]
[2022-11-02 20:46:49,366 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:46:49,378 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 20:46:49,394 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_3a33322d-d1e9-4546-aaf0-c724c2c770bb/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[1997,2010]
[2022-11-02 20:46:49,395 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_3a33322d-d1e9-4546-aaf0-c724c2c770bb/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[2366,2379]
[2022-11-02 20:46:49,419 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:46:49,432 INFO L208 MainTranslator]: Completed translation
[2022-11-02 20:46:49,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:49 WrapperNode
[2022-11-02 20:46:49,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:46:49,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:46:49,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:46:49,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:46:49,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:49" (1/1) ...
[2022-11-02 20:46:49,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:49" (1/1) ...
[2022-11-02 20:46:49,493 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 133
[2022-11-02 20:46:49,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:46:49,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:46:49,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:46:49,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:46:49,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:49" (1/1) ...
[2022-11-02 20:46:49,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:49" (1/1) ...
[2022-11-02 20:46:49,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:49" (1/1) ...
[2022-11-02 20:46:49,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:49" (1/1) ...
[2022-11-02 20:46:49,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:49" (1/1) ...
[2022-11-02 20:46:49,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:49" (1/1) ...
[2022-11-02 20:46:49,520 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:49" (1/1) ...
[2022-11-02 20:46:49,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:49" (1/1) ...
[2022-11-02 20:46:49,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:46:49,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:46:49,525 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:46:49,526 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:46:49,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:49" (1/1) ...
[2022-11-02 20:46:49,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:46:49,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:46:49,558 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:46:49,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:46:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 20:46:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt
[2022-11-02 20:46:49,612 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt
[2022-11-02 20:46:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-02 20:46:49,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:46:49,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:46:49,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-11-02 20:46:49,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-11-02 20:46:49,727 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 20:46:49,729 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:46:50,149 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 20:46:50,156 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:46:50,156 INFO L300 CfgBuilder]: Removed 2 assume(true) statements.
[2022-11-02 20:46:50,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:46:50 BoogieIcfgContainer
[2022-11-02 20:46:50,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:46:50,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:46:50,161 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:46:50,165 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:46:50,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:46:48" (1/3) ...
[2022-11-02 20:46:50,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31da01f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:46:50, skipping insertion in model container
[2022-11-02 20:46:50,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:49" (2/3) ...
[2022-11-02 20:46:50,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31da01f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:46:50, skipping insertion in model container
[2022-11-02 20:46:50,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:46:50" (3/3) ...
[2022-11-02 20:46:50,168 INFO L112 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_5a.c.cil.c
[2022-11-02 20:46:50,188 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:46:50,189 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-11-02 20:46:50,242 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:46:50,249 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;@da4b763, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:46:50,249 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-11-02 20:46:50,254 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 20:46:50,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-11-02 20:46:50,261 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:46:50,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:46:50,263 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:46:50,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:46:50,269 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times
[2022-11-02 20:46:50,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:46:50,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741398176]
[2022-11-02 20:46:50,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:46:50,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:46:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:46:50,464 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 20:46:50,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:46:50,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741398176]
[2022-11-02 20:46:50,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741398176] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:46:50,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:46:50,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 20:46:50,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769741292]
[2022-11-02 20:46:50,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:46:50,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-11-02 20:46:50,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:46:50,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-11-02 20:46:50,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-02 20:46:50,522 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 20:46:50,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:46:50,570 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions.
[2022-11-02 20:46:50,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-02 20:46:50,572 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 20:46:50,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:46:50,583 INFO L225 Difference]: With dead ends: 117
[2022-11-02 20:46:50,583 INFO L226 Difference]: Without dead ends: 52
[2022-11-02 20:46:50,587 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 20:46:50,594 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 20:46:50,595 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 20:46:50,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2022-11-02 20:46:50,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52.
[2022-11-02 20:46:50,642 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 20:46:50,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions.
[2022-11-02 20:46:50,648 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7
[2022-11-02 20:46:50,649 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:46:50,649 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions.
[2022-11-02 20:46:50,649 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 20:46:50,649 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions.
[2022-11-02 20:46:50,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-11-02 20:46:50,650 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:46:50,650 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:46:50,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-02 20:46:50,650 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:46:50,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:46:50,652 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times
[2022-11-02 20:46:50,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:46:50,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563180024]
[2022-11-02 20:46:50,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:46:50,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:46:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:46:50,701 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:46:50,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:46:50,726 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:46:50,727 INFO L359 BasicCegarLoop]: Counterexample is feasible
[2022-11-02 20:46:50,728 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2022-11-02 20:46:50,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2022-11-02 20:46:50,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-11-02 20:46:50,746 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1]
[2022-11-02 20:46:50,750 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 20:46:50,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:46:50 BoogieIcfgContainer
[2022-11-02 20:46:50,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 20:46:50,770 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 20:46:50,770 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 20:46:50,771 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 20:46:50,771 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:46:50" (3/4) ...
[2022-11-02 20:46:50,774 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2022-11-02 20:46:50,775 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 20:46:50,775 INFO L158 Benchmark]: Toolchain (without parser) took 1798.49ms. Allocated memory was 119.5MB in the beginning and 188.7MB in the end (delta: 69.2MB). Free memory was 77.5MB in the beginning and 161.8MB in the end (delta: -84.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:46:50,776 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 119.5MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:46:50,776 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.74ms. Allocated memory is still 119.5MB. Free memory was 77.3MB in the beginning and 89.6MB in the end (delta: -12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-02 20:46:50,777 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.39ms. Allocated memory is still 119.5MB. Free memory was 89.6MB in the beginning and 87.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:46:50,778 INFO L158 Benchmark]: Boogie Preprocessor took 30.70ms. Allocated memory is still 119.5MB. Free memory was 87.5MB in the beginning and 85.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:46:50,778 INFO L158 Benchmark]: RCFGBuilder took 633.68ms. Allocated memory is still 119.5MB. Free memory was 85.8MB in the beginning and 68.3MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2022-11-02 20:46:50,779 INFO L158 Benchmark]: TraceAbstraction took 608.82ms. Allocated memory was 119.5MB in the beginning and 188.7MB in the end (delta: 69.2MB). Free memory was 67.7MB in the beginning and 161.8MB in the end (delta: -94.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:46:50,779 INFO L158 Benchmark]: Witness Printer took 4.50ms. Allocated memory is still 188.7MB. Free memory is still 161.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:46:50,782 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.30ms. Allocated memory is still 119.5MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 454.74ms. Allocated memory is still 119.5MB. Free memory was 77.3MB in the beginning and 89.6MB in the end (delta: -12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 58.39ms. Allocated memory is still 119.5MB. Free memory was 89.6MB in the beginning and 87.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 30.70ms. Allocated memory is still 119.5MB. Free memory was 87.5MB in the beginning and 85.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 633.68ms. Allocated memory is still 119.5MB. Free memory was 85.8MB in the beginning and 68.3MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 608.82ms. Allocated memory was 119.5MB in the beginning and 188.7MB in the end (delta: 69.2MB). Free memory was 67.7MB in the beginning and 161.8MB in the end (delta: -94.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 4.50ms. Allocated memory is still 188.7MB. Free memory is still 161.8MB. 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 < 1.398f)
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: 0.5s, 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, 0.1s 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 20:46:50,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/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_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/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_3a33322d-d1e9-4546-aaf0-c724c2c770bb/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 c065a55f68f899d0f20fc5e1ef687a000c7e9a3454841ed8a67112aa421d143f
--- 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 20:46:53,343 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:46:53,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:46:53,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:46:53,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:46:53,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:46:53,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:46:53,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:46:53,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:46:53,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:46:53,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:46:53,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:46:53,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:46:53,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:46:53,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:46:53,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:46:53,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:46:53,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:46:53,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:46:53,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:46:53,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:46:53,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:46:53,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:46:53,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:46:53,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:46:53,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:46:53,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:46:53,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:46:53,460 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:46:53,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:46:53,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:46:53,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:46:53,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:46:53,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:46:53,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:46:53,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:46:53,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:46:53,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:46:53,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:46:53,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:46:53,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:46:53,472 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2022-11-02 20:46:53,529 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:46:53,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:46:53,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:46:53,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:46:53,531 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:46:53,531 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:46:53,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:46:53,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:46:53,533 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:46:53,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:46:53,536 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-02 20:46:53,536 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-02 20:46:53,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:46:53,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:46:53,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:46:53,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:46:53,537 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2022-11-02 20:46:53,538 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2022-11-02 20:46:53,538 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2022-11-02 20:46:53,538 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-02 20:46:53,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 20:46:53,539 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:46:53,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:46:53,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:46:53,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:46:53,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 20:46:53,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:46:53,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:46:53,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:46:53,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:46:53,542 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2022-11-02 20:46:53,542 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2022-11-02 20:46:53,542 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 20:46:53,542 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 20:46:53,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:46:53,543 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2022-11-02 20:46:53,543 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_3a33322d-d1e9-4546-aaf0-c724c2c770bb/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c065a55f68f899d0f20fc5e1ef687a000c7e9a3454841ed8a67112aa421d143f
[2022-11-02 20:46:53,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:46:53,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:46:53,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:46:53,960 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:46:53,961 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:46:53,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c
[2022-11-02 20:46:54,046 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/data/8c24b12b2/90565b751ffb4ab5aca2819336eb9fd4/FLAGa937d4722
[2022-11-02 20:46:54,609 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:46:54,610 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c
[2022-11-02 20:46:54,619 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/data/8c24b12b2/90565b751ffb4ab5aca2819336eb9fd4/FLAGa937d4722
[2022-11-02 20:46:54,974 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/data/8c24b12b2/90565b751ffb4ab5aca2819336eb9fd4
[2022-11-02 20:46:54,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:46:54,978 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:46:54,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:46:54,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:46:54,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:46:54,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:46:54" (1/1) ...
[2022-11-02 20:46:54,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c79a4b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:54, skipping insertion in model container
[2022-11-02 20:46:54,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:46:54" (1/1) ...
[2022-11-02 20:46:55,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:46:55,071 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:46:55,240 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_3a33322d-d1e9-4546-aaf0-c724c2c770bb/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[1997,2010]
[2022-11-02 20:46:55,246 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_3a33322d-d1e9-4546-aaf0-c724c2c770bb/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[2366,2379]
[2022-11-02 20:46:55,284 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:46:55,296 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 20:46:55,327 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_3a33322d-d1e9-4546-aaf0-c724c2c770bb/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[1997,2010]
[2022-11-02 20:46:55,340 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_3a33322d-d1e9-4546-aaf0-c724c2c770bb/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[2366,2379]
[2022-11-02 20:46:55,372 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:46:55,400 INFO L208 MainTranslator]: Completed translation
[2022-11-02 20:46:55,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:55 WrapperNode
[2022-11-02 20:46:55,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:46:55,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:46:55,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:46:55,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:46:55,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:55" (1/1) ...
[2022-11-02 20:46:55,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:55" (1/1) ...
[2022-11-02 20:46:55,486 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129
[2022-11-02 20:46:55,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:46:55,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:46:55,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:46:55,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:46:55,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:55" (1/1) ...
[2022-11-02 20:46:55,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:55" (1/1) ...
[2022-11-02 20:46:55,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:55" (1/1) ...
[2022-11-02 20:46:55,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:55" (1/1) ...
[2022-11-02 20:46:55,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:55" (1/1) ...
[2022-11-02 20:46:55,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:55" (1/1) ...
[2022-11-02 20:46:55,547 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:55" (1/1) ...
[2022-11-02 20:46:55,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:55" (1/1) ...
[2022-11-02 20:46:55,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:46:55,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:46:55,561 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:46:55,561 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:46:55,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:55" (1/1) ...
[2022-11-02 20:46:55,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:46:55,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:46:55,599 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:46:55,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:46:55,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 20:46:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-11-02 20:46:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt
[2022-11-02 20:46:55,660 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt
[2022-11-02 20:46:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:46:55,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:46:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-11-02 20:46:55,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-11-02 20:46:55,745 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 20:46:55,747 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:46:58,287 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 20:46:58,294 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:46:58,295 INFO L300 CfgBuilder]: Removed 2 assume(true) statements.
[2022-11-02 20:46:58,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:46:58 BoogieIcfgContainer
[2022-11-02 20:46:58,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:46:58,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:46:58,317 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:46:58,320 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:46:58,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:46:54" (1/3) ...
[2022-11-02 20:46:58,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@defb3b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:46:58, skipping insertion in model container
[2022-11-02 20:46:58,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:55" (2/3) ...
[2022-11-02 20:46:58,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@defb3b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:46:58, skipping insertion in model container
[2022-11-02 20:46:58,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:46:58" (3/3) ...
[2022-11-02 20:46:58,323 INFO L112 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_5a.c.cil.c
[2022-11-02 20:46:58,341 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:46:58,341 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-11-02 20:46:58,420 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:46:58,427 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;@e2b34dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:46:58,427 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-11-02 20:46:58,431 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 20:46:58,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-11-02 20:46:58,439 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:46:58,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:46:58,441 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:46:58,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:46:58,447 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times
[2022-11-02 20:46:58,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:46:58,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352313508]
[2022-11-02 20:46:58,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:46:58,460 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:46:58,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:46:58,465 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:46:58,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2022-11-02 20:46:59,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:46:59,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-11-02 20:46:59,173 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:46:59,190 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 20:46:59,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:46:59,191 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:46:59,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352313508]
[2022-11-02 20:46:59,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352313508] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:46:59,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:46:59,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 20:46:59,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661203538]
[2022-11-02 20:46:59,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:46:59,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-11-02 20:46:59,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:46:59,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-11-02 20:46:59,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-02 20:46:59,230 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 20:46:59,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:46:59,269 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions.
[2022-11-02 20:46:59,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-02 20:46:59,271 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 20:46:59,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:46:59,279 INFO L225 Difference]: With dead ends: 117
[2022-11-02 20:46:59,280 INFO L226 Difference]: Without dead ends: 52
[2022-11-02 20:46:59,283 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 20:46:59,286 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 20:46:59,287 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 20:46:59,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2022-11-02 20:46:59,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52.
[2022-11-02 20:46:59,322 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 20:46:59,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions.
[2022-11-02 20:46:59,328 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7
[2022-11-02 20:46:59,329 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:46:59,329 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions.
[2022-11-02 20:46:59,329 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 20:46:59,330 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions.
[2022-11-02 20:46:59,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-11-02 20:46:59,332 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:46:59,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:46:59,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2022-11-02 20:46:59,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:46:59,550 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:46:59,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:46:59,551 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times
[2022-11-02 20:46:59,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:46:59,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739992264]
[2022-11-02 20:46:59,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:46:59,552 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:46:59,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:46:59,554 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:46:59,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2022-11-02 20:47:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:47:35,337 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:48:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:48:16,765 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2022-11-02 20:48:16,766 INFO L359 BasicCegarLoop]: Counterexample is feasible
[2022-11-02 20:48:16,767 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2022-11-02 20:48:16,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2022-11-02 20:48:16,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2022-11-02 20:48:16,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:48:16,974 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1]
[2022-11-02 20:48:16,978 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 20:48:16,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:48:16 BoogieIcfgContainer
[2022-11-02 20:48:16,999 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 20:48:16,999 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 20:48:17,000 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 20:48:17,000 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 20:48:17,000 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:46:58" (3/4) ...
[2022-11-02 20:48:17,003 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2022-11-02 20:48:17,043 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/bin/uautomizer-Dbtcem3rbc/witness.graphml
[2022-11-02 20:48:17,043 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 20:48:17,044 INFO L158 Benchmark]: Toolchain (without parser) took 82065.34ms. Allocated memory is still 88.1MB. Free memory was 52.7MB in the beginning and 44.1MB in the end (delta: 8.6MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB.
[2022-11-02 20:48:17,046 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory is still 69.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:48:17,047 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.89ms. Allocated memory is still 88.1MB. Free memory was 52.5MB in the beginning and 61.3MB in the end (delta: -8.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2022-11-02 20:48:17,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.30ms. Allocated memory is still 88.1MB. Free memory was 61.3MB in the beginning and 59.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:48:17,050 INFO L158 Benchmark]: Boogie Preprocessor took 71.19ms. Allocated memory is still 88.1MB. Free memory was 59.4MB in the beginning and 57.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:48:17,051 INFO L158 Benchmark]: RCFGBuilder took 2736.50ms. Allocated memory is still 88.1MB. Free memory was 57.3MB in the beginning and 40.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2022-11-02 20:48:17,052 INFO L158 Benchmark]: TraceAbstraction took 78682.08ms. Allocated memory is still 88.1MB. Free memory was 70.9MB in the beginning and 45.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2022-11-02 20:48:17,053 INFO L158 Benchmark]: Witness Printer took 43.80ms. Allocated memory is still 88.1MB. Free memory was 45.7MB in the beginning and 44.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:48:17,055 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory is still 69.3MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 433.89ms. Allocated memory is still 88.1MB. Free memory was 52.5MB in the beginning and 61.3MB in the end (delta: -8.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 73.30ms. Allocated memory is still 88.1MB. Free memory was 61.3MB in the beginning and 59.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 71.19ms. Allocated memory is still 88.1MB. Free memory was 59.4MB in the beginning and 57.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 2736.50ms. Allocated memory is still 88.1MB. Free memory was 57.3MB in the beginning and 40.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 78682.08ms. Allocated memory is still 88.1MB. Free memory was 70.9MB in the beginning and 45.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* Witness Printer took 43.80ms. Allocated memory is still 88.1MB. Free memory was 45.7MB in the beginning and 44.1MB in the end (delta: 1.6MB). 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
- CounterExampleResult [Line: 48]: a call to reach_error is reachable
a call to reach_error is reachable
We found a 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=0.9999997615814209, result=1.3984375, x=0.9999997615814209]
[L47] COND TRUE !(result >= 0.0f && result < 1.398f)
VAL [IN=0.9999997615814209, result=1.3984375, x=0.9999997615814209]
[L48] reach_error()
VAL [IN=0.9999997615814209, result=1.3984375, x=0.9999997615814209]
- 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: 78.6s, 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, 6 GetRequests, 6 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, 36.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 1 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 proved your program to be incorrect!
[2022-11-02 20:48:17,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a33322d-d1e9-4546-aaf0-c724c2c770bb/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
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE