./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 5e519f3a
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/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_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/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_7a896503-82d7-4c8c-a111-44f12ee16e91/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 59c8d963265d6c742e08e9840805bbe9b84f06daace9b9a62f5aab6f4fda5366
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-5e519f3
[2022-11-02 21:07:24,652 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 21:07:24,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 21:07:24,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 21:07:24,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 21:07:24,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 21:07:24,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 21:07:24,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 21:07:24,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 21:07:24,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 21:07:24,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 21:07:24,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 21:07:24,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 21:07:24,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 21:07:24,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 21:07:24,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 21:07:24,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 21:07:24,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 21:07:24,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 21:07:24,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 21:07:24,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 21:07:24,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 21:07:24,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 21:07:24,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 21:07:24,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 21:07:24,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 21:07:24,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 21:07:24,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 21:07:24,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 21:07:24,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 21:07:24,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 21:07:24,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 21:07:24,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 21:07:24,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 21:07:24,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 21:07:24,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 21:07:24,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 21:07:24,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 21:07:24,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 21:07:24,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 21:07:24,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 21:07:24,788 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-11-02 21:07:24,828 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 21:07:24,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 21:07:24,829 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 21:07:24,829 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 21:07:24,830 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 21:07:24,830 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 21:07:24,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 21:07:24,831 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 21:07:24,832 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 21:07:24,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 21:07:24,833 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-02 21:07:24,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-02 21:07:24,833 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-02 21:07:24,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 21:07:24,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 21:07:24,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 21:07:24,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 21:07:24,835 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-02 21:07:24,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 21:07:24,835 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 21:07:24,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 21:07:24,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 21:07:24,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 21:07:24,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 21:07:24,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 21:07:24,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 21:07:24,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 21:07:24,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 21:07:24,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-02 21:07:24,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 21:07:24,838 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 21:07:24,838 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 21:07:24,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 21:07:24,839 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_7a896503-82d7-4c8c-a111-44f12ee16e91/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59c8d963265d6c742e08e9840805bbe9b84f06daace9b9a62f5aab6f4fda5366
[2022-11-02 21:07:25,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 21:07:25,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 21:07:25,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 21:07:25,250 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 21:07:25,251 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 21:07:25,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c
[2022-11-02 21:07:25,328 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/data/b50354ad5/b52f2787247f4d52a9ad180ef217fffd/FLAG4002fc390
[2022-11-02 21:07:25,843 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 21:07:25,844 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c
[2022-11-02 21:07:25,852 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/data/b50354ad5/b52f2787247f4d52a9ad180ef217fffd/FLAG4002fc390
[2022-11-02 21:07:26,215 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/data/b50354ad5/b52f2787247f4d52a9ad180ef217fffd
[2022-11-02 21:07:26,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 21:07:26,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 21:07:26,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 21:07:26,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 21:07:26,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 21:07:26,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:07:26" (1/1) ...
[2022-11-02 21:07:26,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3389b582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:26, skipping insertion in model container
[2022-11-02 21:07:26,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:07:26" (1/1) ...
[2022-11-02 21:07:26,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 21:07:26,302 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 21:07:26,572 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_7a896503-82d7-4c8c-a111-44f12ee16e91/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[1996,2009]
[2022-11-02 21:07:26,577 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_7a896503-82d7-4c8c-a111-44f12ee16e91/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[2365,2378]
[2022-11-02 21:07:26,630 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 21:07:26,652 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 21:07:26,669 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_7a896503-82d7-4c8c-a111-44f12ee16e91/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[1996,2009]
[2022-11-02 21:07:26,671 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_7a896503-82d7-4c8c-a111-44f12ee16e91/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[2365,2378]
[2022-11-02 21:07:26,701 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 21:07:26,713 INFO L208 MainTranslator]: Completed translation
[2022-11-02 21:07:26,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:26 WrapperNode
[2022-11-02 21:07:26,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 21:07:26,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 21:07:26,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 21:07:26,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 21:07:26,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:26" (1/1) ...
[2022-11-02 21:07:26,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:26" (1/1) ...
[2022-11-02 21:07:26,756 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 133
[2022-11-02 21:07:26,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 21:07:26,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 21:07:26,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 21:07:26,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 21:07:26,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:26" (1/1) ...
[2022-11-02 21:07:26,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:26" (1/1) ...
[2022-11-02 21:07:26,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:26" (1/1) ...
[2022-11-02 21:07:26,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:26" (1/1) ...
[2022-11-02 21:07:26,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:26" (1/1) ...
[2022-11-02 21:07:26,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:26" (1/1) ...
[2022-11-02 21:07:26,783 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:26" (1/1) ...
[2022-11-02 21:07:26,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:26" (1/1) ...
[2022-11-02 21:07:26,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 21:07:26,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 21:07:26,788 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 21:07:26,788 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 21:07:26,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:26" (1/1) ...
[2022-11-02 21:07:26,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 21:07:26,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 21:07:26,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 21:07:26,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 21:07:26,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 21:07:26,886 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt
[2022-11-02 21:07:26,886 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt
[2022-11-02 21:07:26,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-02 21:07:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 21:07:26,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 21:07:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-11-02 21:07:26,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-11-02 21:07:26,995 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 21:07:26,998 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 21:07:27,395 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 21:07:27,402 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 21:07:27,402 INFO L300 CfgBuilder]: Removed 2 assume(true) statements.
[2022-11-02 21:07:27,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:07:27 BoogieIcfgContainer
[2022-11-02 21:07:27,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 21:07:27,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 21:07:27,407 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 21:07:27,410 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 21:07:27,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:07:26" (1/3) ...
[2022-11-02 21:07:27,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7831b8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:07:27, skipping insertion in model container
[2022-11-02 21:07:27,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:26" (2/3) ...
[2022-11-02 21:07:27,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7831b8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:07:27, skipping insertion in model container
[2022-11-02 21:07:27,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:07:27" (3/3) ...
[2022-11-02 21:07:27,419 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_2a.c.cil.c
[2022-11-02 21:07:27,440 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 21:07:27,440 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-11-02 21:07:27,495 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 21:07:27,502 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;@7de4c491, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 21:07:27,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-11-02 21:07:27,507 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 21:07:27,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-11-02 21:07:27,515 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 21:07:27,516 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:07:27,516 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:07:27,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:07:27,523 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times
[2022-11-02 21:07:27,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:07:27,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585149004]
[2022-11-02 21:07:27,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:07:27,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:07:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:07:27,660 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 21:07:27,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:07:27,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585149004]
[2022-11-02 21:07:27,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585149004] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:07:27,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:07:27,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 21:07:27,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43562955]
[2022-11-02 21:07:27,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:07:27,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-11-02 21:07:27,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:07:27,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-11-02 21:07:27,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-02 21:07:27,696 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 21:07:27,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:07:27,734 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions.
[2022-11-02 21:07:27,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-02 21:07:27,736 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 21:07:27,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:07:27,746 INFO L225 Difference]: With dead ends: 117
[2022-11-02 21:07:27,746 INFO L226 Difference]: Without dead ends: 52
[2022-11-02 21:07:27,750 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 21:07:27,758 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 21:07:27,759 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 21:07:27,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2022-11-02 21:07:27,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52.
[2022-11-02 21:07:27,851 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 21:07:27,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions.
[2022-11-02 21:07:27,857 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7
[2022-11-02 21:07:27,858 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:07:27,858 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions.
[2022-11-02 21:07:27,858 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 21:07:27,858 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions.
[2022-11-02 21:07:27,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-11-02 21:07:27,859 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 21:07:27,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:07:27,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-02 21:07:27,860 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:07:27,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:07:27,861 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times
[2022-11-02 21:07:27,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:07:27,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5800981]
[2022-11-02 21:07:27,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:07:27,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:07:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 21:07:27,885 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 21:07:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 21:07:27,925 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 21:07:27,926 INFO L359 BasicCegarLoop]: Counterexample is feasible
[2022-11-02 21:07:27,928 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2022-11-02 21:07:27,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2022-11-02 21:07:27,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-11-02 21:07:27,936 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1]
[2022-11-02 21:07:27,940 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 21:07:27,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:07:27 BoogieIcfgContainer
[2022-11-02 21:07:27,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 21:07:27,969 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 21:07:27,969 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 21:07:27,970 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 21:07:27,971 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:07:27" (3/4) ...
[2022-11-02 21:07:27,974 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2022-11-02 21:07:27,975 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 21:07:27,978 INFO L158 Benchmark]: Toolchain (without parser) took 1753.31ms. Allocated memory was 113.2MB in the beginning and 140.5MB in the end (delta: 27.3MB). Free memory was 71.8MB in the beginning and 111.1MB in the end (delta: -39.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 21:07:27,978 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 21:07:27,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.60ms. Allocated memory is still 113.2MB. Free memory was 71.6MB in the beginning and 84.4MB in the end (delta: -12.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-02 21:07:27,983 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.87ms. Allocated memory is still 113.2MB. Free memory was 84.4MB in the beginning and 82.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 21:07:27,987 INFO L158 Benchmark]: Boogie Preprocessor took 29.98ms. Allocated memory is still 113.2MB. Free memory was 82.5MB in the beginning and 80.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 21:07:27,988 INFO L158 Benchmark]: RCFGBuilder took 616.55ms. Allocated memory is still 113.2MB. Free memory was 80.8MB in the beginning and 63.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2022-11-02 21:07:27,988 INFO L158 Benchmark]: TraceAbstraction took 561.16ms. Allocated memory was 113.2MB in the beginning and 140.5MB in the end (delta: 27.3MB). Free memory was 62.7MB in the beginning and 111.1MB in the end (delta: -48.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 21:07:27,989 INFO L158 Benchmark]: Witness Printer took 5.51ms. Allocated memory is still 140.5MB. Free memory is still 111.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 21:07:27,998 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 487.60ms. Allocated memory is still 113.2MB. Free memory was 71.6MB in the beginning and 84.4MB in the end (delta: -12.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 41.87ms. Allocated memory is still 113.2MB. Free memory was 84.4MB in the beginning and 82.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 29.98ms. Allocated memory is still 113.2MB. Free memory was 82.5MB in the beginning and 80.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 616.55ms. Allocated memory is still 113.2MB. Free memory was 80.8MB in the beginning and 63.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 561.16ms. Allocated memory was 113.2MB in the beginning and 140.5MB in the end (delta: 27.3MB). Free memory was 62.7MB in the beginning and 111.1MB in the end (delta: -48.4MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 5.51ms. Allocated memory is still 140.5MB. Free memory is still 111.1MB. 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 < 1.39f)
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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2022-11-02 21:07:28,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/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_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/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_7a896503-82d7-4c8c-a111-44f12ee16e91/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 59c8d963265d6c742e08e9840805bbe9b84f06daace9b9a62f5aab6f4fda5366
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-5e519f3
[2022-11-02 21:07:30,535 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 21:07:30,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 21:07:30,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 21:07:30,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 21:07:30,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 21:07:30,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 21:07:30,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 21:07:30,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 21:07:30,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 21:07:30,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 21:07:30,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 21:07:30,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 21:07:30,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 21:07:30,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 21:07:30,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 21:07:30,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 21:07:30,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 21:07:30,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 21:07:30,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 21:07:30,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 21:07:30,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 21:07:30,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 21:07:30,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 21:07:30,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 21:07:30,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 21:07:30,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 21:07:30,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 21:07:30,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 21:07:30,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 21:07:30,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 21:07:30,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 21:07:30,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 21:07:30,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 21:07:30,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 21:07:30,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 21:07:30,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 21:07:30,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 21:07:30,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 21:07:30,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 21:07:30,664 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 21:07:30,665 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2022-11-02 21:07:30,711 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 21:07:30,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 21:07:30,712 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 21:07:30,712 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 21:07:30,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 21:07:30,713 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 21:07:30,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 21:07:30,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 21:07:30,715 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 21:07:30,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 21:07:30,716 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-02 21:07:30,717 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-02 21:07:30,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 21:07:30,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 21:07:30,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 21:07:30,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 21:07:30,718 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2022-11-02 21:07:30,718 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2022-11-02 21:07:30,718 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2022-11-02 21:07:30,718 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-02 21:07:30,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 21:07:30,718 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 21:07:30,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 21:07:30,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 21:07:30,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 21:07:30,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 21:07:30,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 21:07:30,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 21:07:30,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 21:07:30,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 21:07:30,720 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2022-11-02 21:07:30,721 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2022-11-02 21:07:30,721 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 21:07:30,721 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 21:07:30,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 21:07:30,721 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2022-11-02 21:07:30,722 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_7a896503-82d7-4c8c-a111-44f12ee16e91/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59c8d963265d6c742e08e9840805bbe9b84f06daace9b9a62f5aab6f4fda5366
[2022-11-02 21:07:31,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 21:07:31,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 21:07:31,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 21:07:31,168 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 21:07:31,170 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 21:07:31,172 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c
[2022-11-02 21:07:31,275 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/data/42d2c2cf2/909c87b01d1a4afb925d3061a90c3b6e/FLAGc4b9e6a33
[2022-11-02 21:07:31,869 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 21:07:31,870 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c
[2022-11-02 21:07:31,885 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/data/42d2c2cf2/909c87b01d1a4afb925d3061a90c3b6e/FLAGc4b9e6a33
[2022-11-02 21:07:32,180 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/data/42d2c2cf2/909c87b01d1a4afb925d3061a90c3b6e
[2022-11-02 21:07:32,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 21:07:32,188 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 21:07:32,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 21:07:32,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 21:07:32,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 21:07:32,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:07:32" (1/1) ...
[2022-11-02 21:07:32,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fcce9b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:32, skipping insertion in model container
[2022-11-02 21:07:32,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:07:32" (1/1) ...
[2022-11-02 21:07:32,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 21:07:32,266 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 21:07:32,510 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_7a896503-82d7-4c8c-a111-44f12ee16e91/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[1996,2009]
[2022-11-02 21:07:32,514 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_7a896503-82d7-4c8c-a111-44f12ee16e91/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[2365,2378]
[2022-11-02 21:07:32,566 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 21:07:32,579 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 21:07:32,594 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_7a896503-82d7-4c8c-a111-44f12ee16e91/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[1996,2009]
[2022-11-02 21:07:32,596 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_7a896503-82d7-4c8c-a111-44f12ee16e91/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[2365,2378]
[2022-11-02 21:07:32,620 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 21:07:32,643 INFO L208 MainTranslator]: Completed translation
[2022-11-02 21:07:32,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:32 WrapperNode
[2022-11-02 21:07:32,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 21:07:32,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 21:07:32,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 21:07:32,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 21:07:32,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:32" (1/1) ...
[2022-11-02 21:07:32,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:32" (1/1) ...
[2022-11-02 21:07:32,687 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129
[2022-11-02 21:07:32,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 21:07:32,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 21:07:32,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 21:07:32,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 21:07:32,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:32" (1/1) ...
[2022-11-02 21:07:32,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:32" (1/1) ...
[2022-11-02 21:07:32,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:32" (1/1) ...
[2022-11-02 21:07:32,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:32" (1/1) ...
[2022-11-02 21:07:32,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:32" (1/1) ...
[2022-11-02 21:07:32,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:32" (1/1) ...
[2022-11-02 21:07:32,717 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:32" (1/1) ...
[2022-11-02 21:07:32,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:32" (1/1) ...
[2022-11-02 21:07:32,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 21:07:32,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 21:07:32,723 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 21:07:32,724 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 21:07:32,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:32" (1/1) ...
[2022-11-02 21:07:32,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 21:07:32,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 21:07:32,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 21:07:32,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 21:07:32,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 21:07:32,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-11-02 21:07:32,813 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt
[2022-11-02 21:07:32,813 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt
[2022-11-02 21:07:32,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 21:07:32,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 21:07:32,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-11-02 21:07:32,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-11-02 21:07:32,947 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 21:07:32,949 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 21:07:35,568 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 21:07:35,575 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 21:07:35,575 INFO L300 CfgBuilder]: Removed 2 assume(true) statements.
[2022-11-02 21:07:35,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:07:35 BoogieIcfgContainer
[2022-11-02 21:07:35,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 21:07:35,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 21:07:35,580 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 21:07:35,583 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 21:07:35,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:07:32" (1/3) ...
[2022-11-02 21:07:35,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d159f9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:07:35, skipping insertion in model container
[2022-11-02 21:07:35,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:32" (2/3) ...
[2022-11-02 21:07:35,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d159f9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:07:35, skipping insertion in model container
[2022-11-02 21:07:35,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:07:35" (3/3) ...
[2022-11-02 21:07:35,587 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_2a.c.cil.c
[2022-11-02 21:07:35,607 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 21:07:35,607 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-11-02 21:07:35,659 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 21:07:35,666 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;@65de67f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 21:07:35,667 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-11-02 21:07:35,672 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 21:07:35,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-11-02 21:07:35,679 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 21:07:35,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:07:35,680 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:07:35,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:07:35,687 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times
[2022-11-02 21:07:35,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 21:07:35,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297092931]
[2022-11-02 21:07:35,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:07:35,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 21:07:35,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 21:07:35,710 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 21:07:35,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2022-11-02 21:07:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:07:36,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-11-02 21:07:36,484 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 21:07:36,500 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 21:07:36,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 21:07:36,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 21:07:36,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297092931]
[2022-11-02 21:07:36,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1297092931] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:07:36,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:07:36,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 21:07:36,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788311155]
[2022-11-02 21:07:36,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:07:36,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-11-02 21:07:36,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 21:07:36,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-11-02 21:07:36,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-02 21:07:36,538 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 21:07:36,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:07:36,566 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions.
[2022-11-02 21:07:36,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-02 21:07:36,568 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 21:07:36,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:07:36,584 INFO L225 Difference]: With dead ends: 117
[2022-11-02 21:07:36,584 INFO L226 Difference]: Without dead ends: 52
[2022-11-02 21:07:36,588 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 21:07:36,591 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 21:07:36,592 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 21:07:36,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2022-11-02 21:07:36,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52.
[2022-11-02 21:07:36,631 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 21:07:36,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions.
[2022-11-02 21:07:36,635 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7
[2022-11-02 21:07:36,636 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:07:36,636 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions.
[2022-11-02 21:07:36,636 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 21:07:36,636 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions.
[2022-11-02 21:07:36,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-11-02 21:07:36,637 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 21:07:36,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:07:36,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2022-11-02 21:07:36,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 21:07:36,861 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:07:36,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:07:36,862 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times
[2022-11-02 21:07:36,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 21:07:36,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970522521]
[2022-11-02 21:07:36,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:07:36,863 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 21:07:36,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 21:07:36,866 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 21:07:36,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2022-11-02 21:09:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 21:09:13,886 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 21:09:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 21:09:33,445 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2022-11-02 21:09:33,445 INFO L359 BasicCegarLoop]: Counterexample is feasible
[2022-11-02 21:09:33,447 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2022-11-02 21:09:33,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2022-11-02 21:09:33,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2022-11-02 21:09:33,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 21:09:33,654 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1]
[2022-11-02 21:09:33,659 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 21:09:33,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:09:33 BoogieIcfgContainer
[2022-11-02 21:09:33,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 21:09:33,694 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 21:09:33,694 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 21:09:33,695 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 21:09:33,695 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:07:35" (3/4) ...
[2022-11-02 21:09:33,697 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2022-11-02 21:09:33,734 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/bin/uautomizer-Dbtcem3rbc/witness.graphml
[2022-11-02 21:09:33,734 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 21:09:33,735 INFO L158 Benchmark]: Toolchain (without parser) took 121546.74ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 40.9MB in the beginning and 44.5MB in the end (delta: -3.6MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB.
[2022-11-02 21:09:33,735 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 62.9MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 21:09:33,736 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.30ms. Allocated memory is still 62.9MB. Free memory was 40.7MB in the beginning and 41.1MB in the end (delta: -366.0kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-02 21:09:33,737 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.41ms. Allocated memory is still 62.9MB. Free memory was 40.9MB in the beginning and 39.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 21:09:33,737 INFO L158 Benchmark]: Boogie Preprocessor took 34.36ms. Allocated memory is still 62.9MB. Free memory was 39.0MB in the beginning and 37.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 21:09:33,738 INFO L158 Benchmark]: RCFGBuilder took 2854.65ms. Allocated memory is still 62.9MB. Free memory was 37.1MB in the beginning and 39.2MB in the end (delta: -2.1MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB.
[2022-11-02 21:09:33,738 INFO L158 Benchmark]: TraceAbstraction took 118113.71ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 38.4MB in the beginning and 46.2MB in the end (delta: -7.8MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB.
[2022-11-02 21:09:33,739 INFO L158 Benchmark]: Witness Printer took 40.04ms. Allocated memory is still 75.5MB. Free memory was 46.2MB in the beginning and 44.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 21:09:33,741 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26ms. Allocated memory is still 62.9MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 449.30ms. Allocated memory is still 62.9MB. Free memory was 40.7MB in the beginning and 41.1MB in the end (delta: -366.0kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 42.41ms. Allocated memory is still 62.9MB. Free memory was 40.9MB in the beginning and 39.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 34.36ms. Allocated memory is still 62.9MB. Free memory was 39.0MB in the beginning and 37.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 2854.65ms. Allocated memory is still 62.9MB. Free memory was 37.1MB in the beginning and 39.2MB in the end (delta: -2.1MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB.
* TraceAbstraction took 118113.71ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 38.4MB in the beginning and 46.2MB in the end (delta: -7.8MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB.
* Witness Printer took 40.04ms. Allocated memory is still 75.5MB. Free memory was 46.2MB in the beginning and 44.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- 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=0.9937272071838379, result=1.3966666460037231, x=0.9937272071838379]
[L47] COND TRUE !(result >= 0.0f && result < 1.39f)
VAL [IN=0.9937272071838379, result=1.3966666460037231, x=0.9937272071838379]
[L48] reach_error()
VAL [IN=0.9937272071838379, result=1.3966666460037231, x=0.9937272071838379]
- 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: 118.0s, 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, 97.6s SatisfiabilityAnalysisTime, 0.1s 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 21:09:33,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a896503-82d7-4c8c-a111-44f12ee16e91/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