./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0460.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 63182f13
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0460.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5bcd6030810972ce12a765944bf9ab96af2329d7a9986a8356400ad8ceca68d7
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 17:53:40,607 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 17:53:40,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 17:53:40,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 17:53:40,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 17:53:40,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 17:53:40,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 17:53:40,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 17:53:40,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 17:53:40,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 17:53:40,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 17:53:40,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 17:53:40,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 17:53:40,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 17:53:40,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 17:53:40,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 17:53:40,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 17:53:40,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 17:53:40,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 17:53:40,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 17:53:40,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 17:53:40,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 17:53:40,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 17:53:40,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 17:53:40,720 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 17:53:40,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 17:53:40,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 17:53:40,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 17:53:40,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 17:53:40,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 17:53:40,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 17:53:40,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 17:53:40,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 17:53:40,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 17:53:40,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 17:53:40,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 17:53:40,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 17:53:40,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 17:53:40,735 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 17:53:40,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 17:53:40,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 17:53:40,738 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-11-13 17:53:40,783 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 17:53:40,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 17:53:40,784 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 17:53:40,784 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 17:53:40,785 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 17:53:40,786 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 17:53:40,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 17:53:40,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 17:53:40,787 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 17:53:40,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 17:53:40,789 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 17:53:40,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 17:53:40,789 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 17:53:40,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 17:53:40,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 17:53:40,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 17:53:40,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 17:53:40,790 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 17:53:40,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 17:53:40,791 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 17:53:40,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 17:53:40,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 17:53:40,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 17:53:40,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 17:53:40,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:53:40,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 17:53:40,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 17:53:40,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 17:53:40,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-13 17:53:40,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-13 17:53:40,795 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 17:53:40,795 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 17:53:40,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 17:53:40,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 17:53:40,796 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_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bcd6030810972ce12a765944bf9ab96af2329d7a9986a8356400ad8ceca68d7
[2021-11-13 17:53:41,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 17:53:41,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 17:53:41,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 17:53:41,175 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 17:53:41,176 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 17:53:41,178 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/float-newlib/double_req_bl_0460.c
[2021-11-13 17:53:41,262 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/data/3cccd65d9/24c164c6a2c54016bb4979373585e1b7/FLAG85797e0e1
[2021-11-13 17:53:41,712 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 17:53:41,713 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/sv-benchmarks/c/float-newlib/double_req_bl_0460.c
[2021-11-13 17:53:41,730 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/data/3cccd65d9/24c164c6a2c54016bb4979373585e1b7/FLAG85797e0e1
[2021-11-13 17:53:42,078 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/data/3cccd65d9/24c164c6a2c54016bb4979373585e1b7
[2021-11-13 17:53:42,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 17:53:42,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 17:53:42,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 17:53:42,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 17:53:42,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 17:53:42,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:53:42" (1/1) ...
[2021-11-13 17:53:42,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2822755b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:42, skipping insertion in model container
[2021-11-13 17:53:42,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:53:42" (1/1) ...
[2021-11-13 17:53:42,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 17:53:42,143 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 17:53:42,422 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/sv-benchmarks/c/float-newlib/double_req_bl_0460.c[5763,5776]
[2021-11-13 17:53:42,424 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:53:42,439 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 17:53:42,492 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/sv-benchmarks/c/float-newlib/double_req_bl_0460.c[5763,5776]
[2021-11-13 17:53:42,493 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:53:42,508 INFO L208 MainTranslator]: Completed translation
[2021-11-13 17:53:42,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:42 WrapperNode
[2021-11-13 17:53:42,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 17:53:42,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 17:53:42,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 17:53:42,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 17:53:42,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:42" (1/1) ...
[2021-11-13 17:53:42,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:42" (1/1) ...
[2021-11-13 17:53:42,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 17:53:42,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 17:53:42,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 17:53:42,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 17:53:42,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:42" (1/1) ...
[2021-11-13 17:53:42,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:42" (1/1) ...
[2021-11-13 17:53:42,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:42" (1/1) ...
[2021-11-13 17:53:42,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:42" (1/1) ...
[2021-11-13 17:53:42,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:42" (1/1) ...
[2021-11-13 17:53:42,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:42" (1/1) ...
[2021-11-13 17:53:42,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:42" (1/1) ...
[2021-11-13 17:53:42,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 17:53:42,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 17:53:42,665 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 17:53:42,665 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 17:53:42,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:42" (1/1) ...
[2021-11-13 17:53:42,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:53:42,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:53:42,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 17:53:42,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 17:53:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-13 17:53:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 17:53:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2021-11-13 17:53:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-11-13 17:53:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt
[2021-11-13 17:53:42,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt
[2021-11-13 17:53:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2021-11-13 17:53:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 17:53:42,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 17:53:42,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-11-13 17:53:42,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-13 17:53:43,260 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 17:53:43,260 INFO L299 CfgBuilder]: Removed 14 assume(true) statements.
[2021-11-13 17:53:43,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:53:43 BoogieIcfgContainer
[2021-11-13 17:53:43,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 17:53:43,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 17:53:43,265 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 17:53:43,268 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 17:53:43,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:53:42" (1/3) ...
[2021-11-13 17:53:43,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343d2e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:53:43, skipping insertion in model container
[2021-11-13 17:53:43,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:42" (2/3) ...
[2021-11-13 17:53:43,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343d2e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:53:43, skipping insertion in model container
[2021-11-13 17:53:43,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:53:43" (3/3) ...
[2021-11-13 17:53:43,272 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0460.c
[2021-11-13 17:53:43,278 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 17:53:43,278 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-13 17:53:43,330 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 17:53:43,337 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-11-13 17:53:43,337 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-11-13 17:53:43,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 67 states have (on average 1.6417910447761195) internal successors, (110), 68 states have internal predecessors, (110), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-11-13 17:53:43,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2021-11-13 17:53:43,362 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:53:43,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:53:43,364 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:53:43,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:53:43,369 INFO L85 PathProgramCache]: Analyzing trace with hash 260887967, now seen corresponding path program 1 times
[2021-11-13 17:53:43,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:53:43,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986485235]
[2021-11-13 17:53:43,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:53:43,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:53:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:53:43,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:53:43,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:53:43,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986485235]
[2021-11-13 17:53:43,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986485235] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:53:43,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:53:43,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-11-13 17:53:43,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704995718]
[2021-11-13 17:53:43,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:53:43,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-13 17:53:43,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:53:43,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-13 17:53:43,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 17:53:43,573 INFO L87 Difference]: Start difference. First operand has 72 states, 67 states have (on average 1.6417910447761195) internal successors, (110), 68 states have internal predecessors, (110), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:53:43,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:53:43,605 INFO L93 Difference]: Finished difference Result 141 states and 226 transitions.
[2021-11-13 17:53:43,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-11-13 17:53:43,607 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12
[2021-11-13 17:53:43,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:53:43,616 INFO L225 Difference]: With dead ends: 141
[2021-11-13 17:53:43,616 INFO L226 Difference]: Without dead ends: 68
[2021-11-13 17:53:43,621 INFO L932 BasicCegarLoop]: 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
[2021-11-13 17:53:43,624 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.80ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:53:43,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.80ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time]
[2021-11-13 17:53:43,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2021-11-13 17:53:43,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68.
[2021-11-13 17:53:43,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 64 states have (on average 1.40625) internal successors, (90), 64 states have internal predecessors, (90), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-11-13 17:53:43,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions.
[2021-11-13 17:53:43,669 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 12
[2021-11-13 17:53:43,669 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:53:43,669 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions.
[2021-11-13 17:53:43,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:53:43,670 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions.
[2021-11-13 17:53:43,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2021-11-13 17:53:43,671 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:53:43,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:53:43,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-11-13 17:53:43,672 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:53:43,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:53:43,673 INFO L85 PathProgramCache]: Analyzing trace with hash -843068167, now seen corresponding path program 1 times
[2021-11-13 17:53:43,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:53:43,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853668560]
[2021-11-13 17:53:43,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:53:43,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:53:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:53:43,722 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 17:53:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:53:43,811 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-13 17:53:43,811 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2021-11-13 17:53:43,813 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2021-11-13 17:53:43,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-11-13 17:53:43,819 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1]
[2021-11-13 17:53:43,821 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-13 17:53:43,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 05:53:43 BoogieIcfgContainer
[2021-11-13 17:53:43,860 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-11-13 17:53:43,861 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-11-13 17:53:43,861 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-11-13 17:53:43,861 INFO L275 PluginConnector]: Witness Printer initialized
[2021-11-13 17:53:43,862 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:53:43" (3/4) ...
[2021-11-13 17:53:43,864 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2021-11-13 17:53:43,865 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-11-13 17:53:43,866 INFO L158 Benchmark]: Toolchain (without parser) took 1783.34ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 41.6MB in the beginning and 77.3MB in the end (delta: -35.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:53:43,866 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 79.7MB. Free memory is still 58.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:53:43,867 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.33ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 41.4MB in the beginning and 76.6MB in the end (delta: -35.2MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB.
[2021-11-13 17:53:43,867 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.34ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 75.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:53:43,868 INFO L158 Benchmark]: Boogie Preprocessor took 77.84ms. Allocated memory is still 104.9MB. Free memory was 75.1MB in the beginning and 73.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:53:43,868 INFO L158 Benchmark]: RCFGBuilder took 598.61ms. Allocated memory is still 104.9MB. Free memory was 73.0MB in the beginning and 54.4MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
[2021-11-13 17:53:43,869 INFO L158 Benchmark]: TraceAbstraction took 595.53ms. Allocated memory is still 104.9MB. Free memory was 53.5MB in the beginning and 77.5MB in the end (delta: -24.0MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB.
[2021-11-13 17:53:43,870 INFO L158 Benchmark]: Witness Printer took 4.02ms. Allocated memory is still 104.9MB. Free memory was 77.5MB in the beginning and 77.3MB in the end (delta: 201.8kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:53:43,873 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.35ms. Allocated memory is still 79.7MB. Free memory is still 58.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 425.33ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 41.4MB in the beginning and 76.6MB in the end (delta: -35.2MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 75.34ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 75.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 77.84ms. Allocated memory is still 104.9MB. Free memory was 75.1MB in the beginning and 73.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 598.61ms. Allocated memory is still 104.9MB. Free memory was 73.0MB in the beginning and 54.4MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
* TraceAbstraction took 595.53ms. Allocated memory is still 104.9MB. Free memory was 53.5MB in the beginning and 77.5MB in the end (delta: -24.0MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB.
* Witness Printer took 4.02ms. Allocated memory is still 104.9MB. Free memory was 77.5MB in the beginning and 77.3MB in the end (delta: 201.8kB). 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: 231]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: overapproximation of someUnaryDOUBLEoperation at line 134, overapproximation of bitwiseAnd at line 152, overapproximation of someBinaryArithmeticDOUBLEoperation at line 170, overapproximation of someBinaryDOUBLEComparisonOperation at line 215.
Possible FailurePath:
[L17] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300;
[L129-L142] static const double one_acos = 1.00000000000000000000e+00,
pi = 3.14159265358979311600e+00,
pio2_hi_acos = 1.57079632679489655800e+00,
pio2_lo_acos = 6.12323399573676603587e-17,
pS0_acos = 1.66666666666666657415e-01,
pS1_acos = -3.25565818622400915405e-01,
pS2_acos = 2.01212532134862925881e-01,
pS3_acos = -4.00555345006794114027e-02,
pS4_acos = 7.91534994289814532176e-04,
pS5_acos = 3.47933107596021167570e-05,
qS1_acos = -2.40339491173441421878e+00,
qS2_acos = 2.02094576023350569471e+00,
qS3_acos = -6.88283971605453293030e-01,
qS4_acos = 7.70381505559019352791e-02;
VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000]
[L223] double x = __VERIFIER_nondet_double();
[L225] COND TRUE x < -1.0 || x > 1.0
[L227] CALL, EXPR __ieee754_acos(x)
[L145] double z, p, q, r, w, s, c, df;
[L146] __int32_t hx, ix;
VAL [\old(x)=4294967298, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967298]
[L148] ieee_double_shape_type gh_u;
[L149] gh_u.value = (x)
[L150] EXPR gh_u.parts.msw
[L150] (hx) = gh_u.parts.msw
[L152] ix = hx & 0x7fffffff
VAL [\old(x)=4294967298, hx=-1, one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967298]
[L153] COND FALSE !(ix >= 0x3ff00000)
VAL [\old(x)=4294967298, hx=-1, ix=0, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967298]
[L168] COND TRUE ix < 0x3fe00000
VAL [\old(x)=4294967298, hx=-1, ix=0, one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967298]
[L169] COND TRUE ix <= 0x3c600000
[L170] return pio2_hi_acos + pio2_lo_acos;
VAL [\old(x)=4294967298, hx=-1, ix=0, one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967298]
[L227] RET, EXPR __ieee754_acos(x)
[L227] double res = __ieee754_acos(x);
[L230] CALL, EXPR isnan_double(res)
[L215] return x != x;
VAL [\old(x)=4294967297, \result=0, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967297]
[L230] RET, EXPR isnan_double(res)
[L230] COND TRUE !isnan_double(res)
[L231] reach_error()
VAL [one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, res=4294967297, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967298]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 72 locations, 1 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, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.00ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.00ms 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, 99 mSDtfsCounter, 0 mSolverCounterSat, 1.80ms 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=72occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 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
[2021-11-13 17:53:43,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0460.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5bcd6030810972ce12a765944bf9ab96af2329d7a9986a8356400ad8ceca68d7
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 17:53:46,442 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 17:53:46,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 17:53:46,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 17:53:46,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 17:53:46,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 17:53:46,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 17:53:46,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 17:53:46,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 17:53:46,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 17:53:46,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 17:53:46,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 17:53:46,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 17:53:46,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 17:53:46,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 17:53:46,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 17:53:46,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 17:53:46,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 17:53:46,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 17:53:46,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 17:53:46,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 17:53:46,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 17:53:46,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 17:53:46,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 17:53:46,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 17:53:46,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 17:53:46,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 17:53:46,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 17:53:46,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 17:53:46,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 17:53:46,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 17:53:46,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 17:53:46,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 17:53:46,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 17:53:46,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 17:53:46,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 17:53:46,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 17:53:46,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 17:53:46,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 17:53:46,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 17:53:46,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 17:53:46,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2021-11-13 17:53:46,640 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 17:53:46,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 17:53:46,641 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 17:53:46,641 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 17:53:46,642 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 17:53:46,642 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 17:53:46,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 17:53:46,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 17:53:46,644 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 17:53:46,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 17:53:46,646 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 17:53:46,646 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 17:53:46,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 17:53:46,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 17:53:46,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 17:53:46,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 17:53:46,647 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2021-11-13 17:53:46,647 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2021-11-13 17:53:46,648 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 17:53:46,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 17:53:46,648 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 17:53:46,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 17:53:46,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 17:53:46,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 17:53:46,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 17:53:46,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:53:46,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 17:53:46,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 17:53:46,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 17:53:46,650 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2021-11-13 17:53:46,650 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2021-11-13 17:53:46,651 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 17:53:46,651 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 17:53:46,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 17:53:46,652 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 17:53:46,652 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2021-11-13 17:53:46,652 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_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bcd6030810972ce12a765944bf9ab96af2329d7a9986a8356400ad8ceca68d7
[2021-11-13 17:53:47,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 17:53:47,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 17:53:47,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 17:53:47,109 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 17:53:47,109 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 17:53:47,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/float-newlib/double_req_bl_0460.c
[2021-11-13 17:53:47,175 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/data/f84fa16ba/965f29de1d764e35b53892c120be14bd/FLAG519daaabb
[2021-11-13 17:53:47,667 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 17:53:47,668 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/sv-benchmarks/c/float-newlib/double_req_bl_0460.c
[2021-11-13 17:53:47,680 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/data/f84fa16ba/965f29de1d764e35b53892c120be14bd/FLAG519daaabb
[2021-11-13 17:53:47,999 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/data/f84fa16ba/965f29de1d764e35b53892c120be14bd
[2021-11-13 17:53:48,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 17:53:48,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 17:53:48,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 17:53:48,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 17:53:48,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 17:53:48,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:53:48" (1/1) ...
[2021-11-13 17:53:48,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ade07e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:48, skipping insertion in model container
[2021-11-13 17:53:48,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:53:48" (1/1) ...
[2021-11-13 17:53:48,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 17:53:48,042 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 17:53:48,318 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/sv-benchmarks/c/float-newlib/double_req_bl_0460.c[5763,5776]
[2021-11-13 17:53:48,329 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:53:48,383 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 17:53:48,464 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/sv-benchmarks/c/float-newlib/double_req_bl_0460.c[5763,5776]
[2021-11-13 17:53:48,473 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:53:48,499 INFO L208 MainTranslator]: Completed translation
[2021-11-13 17:53:48,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:48 WrapperNode
[2021-11-13 17:53:48,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 17:53:48,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 17:53:48,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 17:53:48,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 17:53:48,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:48" (1/1) ...
[2021-11-13 17:53:48,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:48" (1/1) ...
[2021-11-13 17:53:48,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 17:53:48,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 17:53:48,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 17:53:48,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 17:53:48,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:48" (1/1) ...
[2021-11-13 17:53:48,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:48" (1/1) ...
[2021-11-13 17:53:48,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:48" (1/1) ...
[2021-11-13 17:53:48,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:48" (1/1) ...
[2021-11-13 17:53:48,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:48" (1/1) ...
[2021-11-13 17:53:48,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:48" (1/1) ...
[2021-11-13 17:53:48,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:48" (1/1) ...
[2021-11-13 17:53:48,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 17:53:48,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 17:53:48,677 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 17:53:48,677 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 17:53:48,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:48" (1/1) ...
[2021-11-13 17:53:48,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 17:53:48,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:53:48,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 17:53:48,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 17:53:48,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8
[2021-11-13 17:53:48,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8
[2021-11-13 17:53:48,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2021-11-13 17:53:48,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 17:53:48,772 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt
[2021-11-13 17:53:48,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt
[2021-11-13 17:53:48,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2021-11-13 17:53:48,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 17:53:48,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 17:53:48,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2021-11-13 17:53:48,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-13 17:54:06,221 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 17:54:06,221 INFO L299 CfgBuilder]: Removed 14 assume(true) statements.
[2021-11-13 17:54:06,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:54:06 BoogieIcfgContainer
[2021-11-13 17:54:06,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 17:54:06,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 17:54:06,227 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 17:54:06,230 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 17:54:06,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:53:48" (1/3) ...
[2021-11-13 17:54:06,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78067095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:54:06, skipping insertion in model container
[2021-11-13 17:54:06,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:48" (2/3) ...
[2021-11-13 17:54:06,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78067095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:54:06, skipping insertion in model container
[2021-11-13 17:54:06,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:54:06" (3/3) ...
[2021-11-13 17:54:06,234 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0460.c
[2021-11-13 17:54:06,240 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 17:54:06,241 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-13 17:54:06,291 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 17:54:06,299 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-11-13 17:54:06,300 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-11-13 17:54:06,330 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 67 states have (on average 1.6417910447761195) internal successors, (110), 68 states have internal predecessors, (110), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-11-13 17:54:06,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2021-11-13 17:54:06,335 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:54:06,336 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:54:06,336 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:54:06,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:54:06,342 INFO L85 PathProgramCache]: Analyzing trace with hash 260887967, now seen corresponding path program 1 times
[2021-11-13 17:54:06,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:54:06,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1857854820]
[2021-11-13 17:54:06,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:54:06,356 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:54:06,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:54:06,358 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:54:06,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2021-11-13 17:54:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:54:07,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core
[2021-11-13 17:54:07,213 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:54:07,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:54:07,516 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:54:07,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:54:07,776 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:54:07,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1857854820]
[2021-11-13 17:54:07,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1857854820] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:54:07,777 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:54:07,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2021-11-13 17:54:07,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479404115]
[2021-11-13 17:54:07,779 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:54:07,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-13 17:54:07,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:54:07,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-13 17:54:07,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 17:54:07,836 INFO L87 Difference]: Start difference. First operand has 72 states, 67 states have (on average 1.6417910447761195) internal successors, (110), 68 states have internal predecessors, (110), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:54:07,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:54:07,867 INFO L93 Difference]: Finished difference Result 141 states and 226 transitions.
[2021-11-13 17:54:07,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-11-13 17:54:07,870 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12
[2021-11-13 17:54:07,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:54:07,879 INFO L225 Difference]: With dead ends: 141
[2021-11-13 17:54:07,879 INFO L226 Difference]: Without dead ends: 68
[2021-11-13 17:54:07,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 17:54:07,888 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.67ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:54:07,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.67ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time]
[2021-11-13 17:54:07,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2021-11-13 17:54:07,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68.
[2021-11-13 17:54:07,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 64 states have (on average 1.40625) internal successors, (90), 64 states have internal predecessors, (90), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-11-13 17:54:07,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions.
[2021-11-13 17:54:07,934 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 12
[2021-11-13 17:54:07,934 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:54:07,934 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions.
[2021-11-13 17:54:07,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:54:07,935 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions.
[2021-11-13 17:54:07,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2021-11-13 17:54:07,936 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:54:07,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:54:07,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0
[2021-11-13 17:54:08,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:54:08,159 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:54:08,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:54:08,160 INFO L85 PathProgramCache]: Analyzing trace with hash -843068167, now seen corresponding path program 1 times
[2021-11-13 17:54:08,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:54:08,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476944508]
[2021-11-13 17:54:08,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:54:08,161 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:54:08,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:54:08,163 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:54:08,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2021-11-13 17:54:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:54:08,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core
[2021-11-13 17:54:08,391 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:54:13,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:54:13,268 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 17:54:19,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:54:19,225 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:54:19,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1476944508]
[2021-11-13 17:54:19,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1476944508] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:54:19,226 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:54:19,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8
[2021-11-13 17:54:19,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927134365]
[2021-11-13 17:54:19,226 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 17:54:19,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-11-13 17:54:19,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 17:54:19,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-11-13 17:54:19,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=37, Unknown=3, NotChecked=0, Total=56
[2021-11-13 17:54:19,228 INFO L87 Difference]: Start difference. First operand 68 states and 94 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:54:20,317 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2021-11-13 17:54:20,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:54:20,322 INFO L93 Difference]: Finished difference Result 73 states and 98 transitions.
[2021-11-13 17:54:20,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-11-13 17:54:20,352 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 13
[2021-11-13 17:54:20,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 17:54:20,352 INFO L225 Difference]: With dead ends: 73
[2021-11-13 17:54:20,352 INFO L226 Difference]: Without dead ends: 16
[2021-11-13 17:54:20,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=16, Invalid=37, Unknown=3, NotChecked=0, Total=56
[2021-11-13 17:54:20,355 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1069.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.82ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 1071.42ms IncrementalHoareTripleChecker+Time
[2021-11-13 17:54:20,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 12 Unknown, 0 Unchecked, 2.82ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 9 Unchecked, 1071.42ms Time]
[2021-11-13 17:54:20,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2021-11-13 17:54:20,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16.
[2021-11-13 17:54:20,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:54:20,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions.
[2021-11-13 17:54:20,359 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 13
[2021-11-13 17:54:20,360 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 17:54:20,360 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions.
[2021-11-13 17:54:20,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:54:20,360 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions.
[2021-11-13 17:54:20,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2021-11-13 17:54:20,361 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 17:54:20,361 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:54:20,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2021-11-13 17:54:20,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 17:54:20,568 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 17:54:20,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:54:20,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1156017025, now seen corresponding path program 1 times
[2021-11-13 17:54:20,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 17:54:20,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968917906]
[2021-11-13 17:54:20,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:54:20,570 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 17:54:20,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 17:54:20,571 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 17:54:20,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2021-11-13 17:54:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:54:21,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjunts are in the unsatisfiable core
[2021-11-13 17:54:21,432 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:54:46,849 WARN L838 $PredicateComparison]: unable to prove that (or (and (= (_ bv0 32) |c_ULTIMATE.start_isnan_double_#res#1|) (exists ((|ULTIMATE.start___ieee754_acos_~x#1| (_ FloatingPoint 11 53))) (let ((.cse0 (let ((.cse1 (fp.sub roundNearestTiesToEven |ULTIMATE.start___ieee754_acos_~x#1| |ULTIMATE.start___ieee754_acos_~x#1|))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (and (= (_ bv1 32) |c_ULTIMATE.start_isnan_double_#res#1|) (exists ((|ULTIMATE.start___ieee754_acos_~x#1| (_ FloatingPoint 11 53))) (not (let ((.cse2 (let ((.cse3 (fp.sub roundNearestTiesToEven |ULTIMATE.start___ieee754_acos_~x#1| |ULTIMATE.start___ieee754_acos_~x#1|))) (fp.div roundNearestTiesToEven .cse3 .cse3)))) (fp.eq .cse2 .cse2)))))) is different from false
[2021-11-13 17:55:04,394 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory")
[2021-11-13 17:55:04,395 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 17:55:04,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1968917906]
[2021-11-13 17:55:04,396 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
[2021-11-13 17:55:04,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1284090092]
[2021-11-13 17:55:04,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:55:04,397 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2021-11-13 17:55:04,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/cvc4
[2021-11-13 17:55:04,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101
[2021-11-13 17:55:04,399 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2021-11-13 17:55:04,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2021-11-13 17:55:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:55:07,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 10 conjunts are in the unsatisfiable core
[2021-11-13 17:55:07,446 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:55:07,448 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken
[2021-11-13 17:55:07,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942635428]
[2021-11-13 17:55:07,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:55:07,448 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 17:55:07,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:55:07,453 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 17:55:07,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2021-11-13 17:55:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:55:09,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 17 conjunts are in the unsatisfiable core
[2021-11-13 17:55:09,480 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@6b7da771
[2021-11-13 17:55:09,480 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:55:09,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0
[2021-11-13 17:55:09,481 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible
[2021-11-13 17:55:09,481 INFO L628 BasicCegarLoop]: Counterexample might be feasible
[2021-11-13 17:55:09,485 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2021-11-13 17:55:09,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2021-11-13 17:55:09,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2021-11-13 17:55:09,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0
[2021-11-13 17:55:10,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbab960-359e-486f-967e-c91cc61f5e29/bin/uautomizer-YU5uOKAj3y/cvc4 --incremental --print-success --lang smt
[2021-11-13 17:55:10,106 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2021-11-13 17:55:10,108 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-13 17:55:10,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 05:55:10 BoogieIcfgContainer
[2021-11-13 17:55:10,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-11-13 17:55:10,122 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-11-13 17:55:10,122 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-11-13 17:55:10,122 INFO L275 PluginConnector]: Witness Printer initialized
[2021-11-13 17:55:10,123 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:54:06" (3/4) ...
[2021-11-13 17:55:10,126 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2021-11-13 17:55:10,126 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-11-13 17:55:10,127 INFO L158 Benchmark]: Toolchain (without parser) took 82124.14ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 36.3MB in the beginning and 34.2MB in the end (delta: 2.1MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB.
[2021-11-13 17:55:10,128 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 58.7MB. Free memory is still 38.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:55:10,128 INFO L158 Benchmark]: CACSL2BoogieTranslator took 496.03ms. Allocated memory is still 58.7MB. Free memory was 36.1MB in the beginning and 37.6MB in the end (delta: -1.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2021-11-13 17:55:10,129 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.10ms. Allocated memory is still 58.7MB. Free memory was 37.4MB in the beginning and 35.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:55:10,129 INFO L158 Benchmark]: Boogie Preprocessor took 97.08ms. Allocated memory is still 58.7MB. Free memory was 35.4MB in the beginning and 32.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:55:10,130 INFO L158 Benchmark]: RCFGBuilder took 17547.31ms. Allocated memory is still 58.7MB. Free memory was 32.9MB in the beginning and 28.0MB in the end (delta: 4.9MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB.
[2021-11-13 17:55:10,131 INFO L158 Benchmark]: TraceAbstraction took 63894.90ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 27.4MB in the beginning and 34.6MB in the end (delta: -7.2MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB.
[2021-11-13 17:55:10,131 INFO L158 Benchmark]: Witness Printer took 4.46ms. Allocated memory is still 77.6MB. Free memory was 34.6MB in the beginning and 34.2MB in the end (delta: 452.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:55:10,134 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.33ms. Allocated memory is still 58.7MB. Free memory is still 38.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 496.03ms. Allocated memory is still 58.7MB. Free memory was 36.1MB in the beginning and 37.6MB in the end (delta: -1.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 77.10ms. Allocated memory is still 58.7MB. Free memory was 37.4MB in the beginning and 35.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 97.08ms. Allocated memory is still 58.7MB. Free memory was 35.4MB in the beginning and 32.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 17547.31ms. Allocated memory is still 58.7MB. Free memory was 32.9MB in the beginning and 28.0MB in the end (delta: 4.9MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 63894.90ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 27.4MB in the beginning and 34.6MB in the end (delta: -7.2MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB.
* Witness Printer took 4.46ms. Allocated memory is still 77.6MB. Free memory was 34.6MB in the beginning and 34.2MB in the end (delta: 452.3kB). 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
- UnprovableResult [Line: 231]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: unable to decide satisfiability of path constraint.
Possible FailurePath:
[L17] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300;
[L129-L142] static const double one_acos = 1.00000000000000000000e+00,
pi = 3.14159265358979311600e+00,
pio2_hi_acos = 1.57079632679489655800e+00,
pio2_lo_acos = 6.12323399573676603587e-17,
pS0_acos = 1.66666666666666657415e-01,
pS1_acos = -3.25565818622400915405e-01,
pS2_acos = 2.01212532134862925881e-01,
pS3_acos = -4.00555345006794114027e-02,
pS4_acos = 7.91534994289814532176e-04,
pS5_acos = 3.47933107596021167570e-05,
qS1_acos = -2.40339491173441421878e+00,
qS2_acos = 2.02094576023350569471e+00,
qS3_acos = -6.88283971605453293030e-01,
qS4_acos = 7.70381505559019352791e-02;
[L223] double x = __VERIFIER_nondet_double();
[L225] COND TRUE x < -1.0 || x > 1.0
[L227] CALL, EXPR __ieee754_acos(x)
[L145] double z, p, q, r, w, s, c, df;
[L146] __int32_t hx, ix;
[L148] ieee_double_shape_type gh_u;
[L149] gh_u.value = (x)
[L150] EXPR gh_u.parts.msw
[L150] (hx) = gh_u.parts.msw
[L152] ix = hx & 0x7fffffff
[L153] COND TRUE ix >= 0x3ff00000
[L154] __uint32_t lx;
[L156] ieee_double_shape_type gl_u;
[L157] gl_u.value = (x)
[L158] EXPR gl_u.parts.lsw
[L158] (lx) = gl_u.parts.lsw
[L160] COND FALSE !(((ix - 0x3ff00000) | lx) == 0)
[L166] return (x - x) / (x - x);
[L227] RET, EXPR __ieee754_acos(x)
[L227] double res = __ieee754_acos(x);
[L230] CALL, EXPR isnan_double(res)
[L215] return x != x;
[L230] RET, EXPR isnan_double(res)
[L230] COND TRUE !isnan_double(res)
[L231] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 63.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 1071.42ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 165 SdHoareTripleChecker+Invalid, 1069.66ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 9 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 113 mSDtfsCounter, 3 mSolverCounterSat, 4.49ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 54.5s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 46 ConstructedInterpolants, 5 QuantifiedInterpolants, 181 SizeOfPredicates, 9 NumberOfNonLiveVariables, 189 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
UNKNOWN