./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_double_range.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double_range.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY --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 797690fe71841b0a44bd1fd32f2345404ce21c41a044ac3f72f0df27db5c2176 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:59:48,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:59:48,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:59:48,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:59:48,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:59:48,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:59:48,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:59:48,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:59:48,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:59:48,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:59:48,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:59:48,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:59:48,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:59:48,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:59:48,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:59:48,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:59:48,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:59:48,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:59:48,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:59:48,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:59:48,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:59:48,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:59:48,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:59:48,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:59:48,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:59:48,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:59:48,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:59:48,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:59:48,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:59:48,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:59:48,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:59:48,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:59:48,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:59:48,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:59:48,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:59:48,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:59:48,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:59:48,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:59:48,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:59:48,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:59:48,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:59:48,215 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 07:59:48,261 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:59:48,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:59:48,262 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:59:48,263 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:59:48,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:59:48,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:59:48,270 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:59:48,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:59:48,271 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:59:48,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:59:48,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:59:48,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:59:48,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:59:48,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:59:48,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:59:48,273 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:59:48,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:59:48,273 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:59:48,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:59:48,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:59:48,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:59:48,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:59:48,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:59:48,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:59:48,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:59:48,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:59:48,275 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:59:48,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:59:48,276 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:59:48,277 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:59:48,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:59:48,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:59:48,278 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_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 797690fe71841b0a44bd1fd32f2345404ce21c41a044ac3f72f0df27db5c2176 [2021-11-07 07:59:48,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:59:48,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:59:48,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:59:48,599 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:59:48,599 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:59:48,600 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/float-benchs/nan_double_range.c [2021-11-07 07:59:48,669 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/data/079510821/99762108b019432f8bb4eb720aa1d277/FLAG9699df090 [2021-11-07 07:59:49,096 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:59:49,097 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/sv-benchmarks/c/float-benchs/nan_double_range.c [2021-11-07 07:59:49,107 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/data/079510821/99762108b019432f8bb4eb720aa1d277/FLAG9699df090 [2021-11-07 07:59:49,491 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/data/079510821/99762108b019432f8bb4eb720aa1d277 [2021-11-07 07:59:49,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:59:49,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:59:49,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:59:49,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:59:49,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:59:49,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:59:49" (1/1) ... [2021-11-07 07:59:49,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6897d1aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:49, skipping insertion in model container [2021-11-07 07:59:49,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:59:49" (1/1) ... [2021-11-07 07:59:49,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:59:49,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:59:49,666 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_e696273a-30be-4b81-bdf9-9f073ca2d8c1/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2021-11-07 07:59:49,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:59:49,683 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:59:49,693 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_e696273a-30be-4b81-bdf9-9f073ca2d8c1/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2021-11-07 07:59:49,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:59:49,710 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:59:49,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:49 WrapperNode [2021-11-07 07:59:49,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:59:49,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:59:49,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:59:49,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:59:49,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:49" (1/1) ... [2021-11-07 07:59:49,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:49" (1/1) ... [2021-11-07 07:59:49,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:59:49,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:59:49,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:59:49,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:59:49,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:49" (1/1) ... [2021-11-07 07:59:49,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:49" (1/1) ... [2021-11-07 07:59:49,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:49" (1/1) ... [2021-11-07 07:59:49,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:49" (1/1) ... [2021-11-07 07:59:49,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:49" (1/1) ... [2021-11-07 07:59:49,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:49" (1/1) ... [2021-11-07 07:59:49,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:49" (1/1) ... [2021-11-07 07:59:49,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:59:49,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:59:49,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:59:49,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:59:49,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:49" (1/1) ... [2021-11-07 07:59:49,770 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:59:49,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:59:49,798 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:59:49,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:59:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:59:49,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:59:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:59:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:59:50,006 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:59:50,006 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-07 07:59:50,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:59:50 BoogieIcfgContainer [2021-11-07 07:59:50,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:59:50,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:59:50,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:59:50,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:59:50,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:59:49" (1/3) ... [2021-11-07 07:59:50,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5de858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:59:50, skipping insertion in model container [2021-11-07 07:59:50,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:49" (2/3) ... [2021-11-07 07:59:50,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5de858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:59:50, skipping insertion in model container [2021-11-07 07:59:50,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:59:50" (3/3) ... [2021-11-07 07:59:50,017 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2021-11-07 07:59:50,022 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:59:50,022 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 07:59:50,065 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:59:50,072 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 [2021-11-07 07:59:50,072 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 07:59:50,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) [2021-11-07 07:59:50,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 07:59:50,091 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:59:50,092 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 07:59:50,093 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:59:50,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:59:50,098 INFO L85 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2021-11-07 07:59:50,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:59:50,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211058036] [2021-11-07 07:59:50,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:59:50,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:59:50,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:59:50,209 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:59:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:59:50,244 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:59:50,246 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 07:59:50,247 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:59:50,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 07:59:50,252 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-07 07:59:50,255 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 07:59:50,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:59:50 BoogieIcfgContainer [2021-11-07 07:59:50,271 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 07:59:50,272 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 07:59:50,272 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 07:59:50,272 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 07:59:50,273 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:59:50" (3/4) ... [2021-11-07 07:59:50,276 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 07:59:50,276 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 07:59:50,278 INFO L168 Benchmark]: Toolchain (without parser) took 781.89 ms. Allocated memory is still 121.6 MB. Free memory was 92.5 MB in the beginning and 71.8 MB in the end (delta: 20.7 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. [2021-11-07 07:59:50,278 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 121.6 MB. Free memory is still 76.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:59:50,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 214.59 ms. Allocated memory is still 121.6 MB. Free memory was 92.5 MB in the beginning and 96.3 MB in the end (delta: -3.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 07:59:50,280 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.01 ms. Allocated memory is still 121.6 MB. Free memory was 96.3 MB in the beginning and 94.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:59:50,281 INFO L168 Benchmark]: Boogie Preprocessor took 18.03 ms. Allocated memory is still 121.6 MB. Free memory was 94.9 MB in the beginning and 93.9 MB in the end (delta: 970.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:59:50,281 INFO L168 Benchmark]: RCFGBuilder took 249.45 ms. Allocated memory is still 121.6 MB. Free memory was 93.9 MB in the beginning and 85.2 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 07:59:50,282 INFO L168 Benchmark]: TraceAbstraction took 261.20 ms. Allocated memory is still 121.6 MB. Free memory was 84.7 MB in the beginning and 72.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 07:59:50,283 INFO L168 Benchmark]: Witness Printer took 4.11 ms. Allocated memory is still 121.6 MB. Free memory was 72.1 MB in the beginning and 71.8 MB in the end (delta: 323.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:59:50,287 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 121.6 MB. Free memory is still 76.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 214.59 ms. Allocated memory is still 121.6 MB. Free memory was 92.5 MB in the beginning and 96.3 MB in the end (delta: -3.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.01 ms. Allocated memory is still 121.6 MB. Free memory was 96.3 MB in the beginning and 94.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.03 ms. Allocated memory is still 121.6 MB. Free memory was 94.9 MB in the beginning and 93.9 MB in the end (delta: 970.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 249.45 ms. Allocated memory is still 121.6 MB. Free memory was 93.9 MB in the beginning and 85.2 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 261.20 ms. Allocated memory is still 121.6 MB. Free memory was 84.7 MB in the beginning and 72.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.11 ms. Allocated memory is still 121.6 MB. Free memory was 72.1 MB in the beginning and 71.8 MB in the end (delta: 323.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * 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: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L15] COND TRUE x >= -1e307 && x <= 1e307 [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2021-11-07 07:59:50,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/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_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double_range.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY --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 797690fe71841b0a44bd1fd32f2345404ce21c41a044ac3f72f0df27db5c2176 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:59:52,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:59:52,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:59:52,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:59:52,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:59:52,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:59:52,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:59:52,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:59:52,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:59:52,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:59:52,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:59:52,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:59:52,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:59:52,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:59:52,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:59:52,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:59:52,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:59:52,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:59:52,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:59:52,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:59:52,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:59:52,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:59:52,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:59:52,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:59:52,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:59:52,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:59:52,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:59:52,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:59:52,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:59:52,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:59:52,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:59:52,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:59:52,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:59:52,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:59:52,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:59:52,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:59:52,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:59:52,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:59:52,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:59:52,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:59:52,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:59:52,765 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-07 07:59:52,790 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:59:52,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:59:52,791 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:59:52,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:59:52,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:59:52,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:59:52,794 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:59:52,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:59:52,794 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:59:52,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:59:52,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:59:52,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:59:52,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:59:52,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:59:52,796 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 07:59:52,797 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 07:59:52,797 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:59:52,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:59:52,797 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:59:52,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:59:52,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:59:52,798 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:59:52,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:59:52,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:59:52,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:59:52,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:59:52,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:59:52,800 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-07 07:59:52,800 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 07:59:52,801 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:59:52,801 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:59:52,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:59:52,802 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:59:52,802 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 07:59:52,802 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_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 797690fe71841b0a44bd1fd32f2345404ce21c41a044ac3f72f0df27db5c2176 [2021-11-07 07:59:53,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:59:53,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:59:53,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:59:53,159 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:59:53,160 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:59:53,161 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/float-benchs/nan_double_range.c [2021-11-07 07:59:53,229 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/data/6e3eb5579/f2cdc49692bf4082a72c83aa9438f347/FLAG392a468dc [2021-11-07 07:59:53,706 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:59:53,707 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/sv-benchmarks/c/float-benchs/nan_double_range.c [2021-11-07 07:59:53,713 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/data/6e3eb5579/f2cdc49692bf4082a72c83aa9438f347/FLAG392a468dc [2021-11-07 07:59:54,098 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/data/6e3eb5579/f2cdc49692bf4082a72c83aa9438f347 [2021-11-07 07:59:54,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:59:54,108 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:59:54,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:59:54,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:59:54,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:59:54,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:59:54" (1/1) ... [2021-11-07 07:59:54,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1ae688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:54, skipping insertion in model container [2021-11-07 07:59:54,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:59:54" (1/1) ... [2021-11-07 07:59:54,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:59:54,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:59:54,309 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_e696273a-30be-4b81-bdf9-9f073ca2d8c1/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2021-11-07 07:59:54,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:59:54,338 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:59:54,370 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_e696273a-30be-4b81-bdf9-9f073ca2d8c1/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2021-11-07 07:59:54,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:59:54,393 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:59:54,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:54 WrapperNode [2021-11-07 07:59:54,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:59:54,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:59:54,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:59:54,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:59:54,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:54" (1/1) ... [2021-11-07 07:59:54,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:54" (1/1) ... [2021-11-07 07:59:54,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:59:54,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:59:54,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:59:54,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:59:54,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:54" (1/1) ... [2021-11-07 07:59:54,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:54" (1/1) ... [2021-11-07 07:59:54,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:54" (1/1) ... [2021-11-07 07:59:54,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:54" (1/1) ... [2021-11-07 07:59:54,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:54" (1/1) ... [2021-11-07 07:59:54,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:54" (1/1) ... [2021-11-07 07:59:54,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:54" (1/1) ... [2021-11-07 07:59:54,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:59:54,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:59:54,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:59:54,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:59:54,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:54" (1/1) ... [2021-11-07 07:59:54,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:59:54,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:59:54,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:59:54,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:59:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 07:59:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:59:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:59:54,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:59:54,798 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:59:54,798 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-07 07:59:54,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:59:54 BoogieIcfgContainer [2021-11-07 07:59:54,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:59:54,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:59:54,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:59:54,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:59:54,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:59:54" (1/3) ... [2021-11-07 07:59:54,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71768353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:59:54, skipping insertion in model container [2021-11-07 07:59:54,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:59:54" (2/3) ... [2021-11-07 07:59:54,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71768353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:59:54, skipping insertion in model container [2021-11-07 07:59:54,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:59:54" (3/3) ... [2021-11-07 07:59:54,821 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2021-11-07 07:59:54,826 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:59:54,826 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 07:59:54,869 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:59:54,876 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 [2021-11-07 07:59:54,876 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 07:59:54,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) [2021-11-07 07:59:54,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 07:59:54,893 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:59:54,894 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 07:59:54,894 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:59:54,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:59:54,900 INFO L85 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2021-11-07 07:59:54,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:59:54,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870547676] [2021-11-07 07:59:54,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:59:54,925 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:59:54,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:59:54,972 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:59:54,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 07:59:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:59:55,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 07:59:55,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:59:55,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:59:55,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:59:55,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:59:55,294 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:59:55,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870547676] [2021-11-07 07:59:55,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870547676] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:59:55,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:59:55,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 07:59:55,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120246377] [2021-11-07 07:59:55,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:59:55,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:59:55,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:59:55,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:59:55,328 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:59:55,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:59:55,351 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2021-11-07 07:59:55,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:59:55,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-07 07:59:55,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:59:55,357 INFO L225 Difference]: With dead ends: 18 [2021-11-07 07:59:55,357 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 07:59:55,359 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:59:55,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 07:59:55,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 07:59:55,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:59:55,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 07:59:55,378 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-11-07 07:59:55,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:59:55,378 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 07:59:55,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:59:55,379 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 07:59:55,379 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 07:59:55,381 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:59:55,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 07:59:55,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:59:55,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 07:59:55,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 07:59:55,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 07:59:55,633 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 07:59:55,633 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 07:59:55,634 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 07:59:55,634 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 07:59:55,634 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2021-11-07 07:59:55,634 INFO L860 garLoopResultBuilder]: At program point L18(lines 10 19) the Hoare annotation is: true [2021-11-07 07:59:55,635 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-11-07 07:59:55,635 INFO L860 garLoopResultBuilder]: At program point L15-1(lines 15 17) the Hoare annotation is: true [2021-11-07 07:59:55,635 INFO L857 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2021-11-07 07:59:55,635 INFO L857 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2021-11-07 07:59:55,639 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-07 07:59:55,640 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 07:59:55,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:59:55 BoogieIcfgContainer [2021-11-07 07:59:55,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 07:59:55,646 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 07:59:55,646 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 07:59:55,646 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 07:59:55,647 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:59:54" (3/4) ... [2021-11-07 07:59:55,650 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 07:59:55,660 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-07 07:59:55,660 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-07 07:59:55,660 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-07 07:59:55,660 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 07:59:55,691 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/witness.graphml [2021-11-07 07:59:55,691 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 07:59:55,693 INFO L168 Benchmark]: Toolchain (without parser) took 1583.83 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 41.6 MB in the beginning and 44.1 MB in the end (delta: -2.5 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:59:55,693 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 60.8 MB. Free memory is still 42.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:59:55,694 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.08 ms. Allocated memory is still 60.8 MB. Free memory was 41.4 MB in the beginning and 44.7 MB in the end (delta: -3.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2021-11-07 07:59:55,694 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.91 ms. Allocated memory is still 60.8 MB. Free memory was 44.5 MB in the beginning and 43.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:59:55,695 INFO L168 Benchmark]: Boogie Preprocessor took 50.31 ms. Allocated memory is still 60.8 MB. Free memory was 43.1 MB in the beginning and 42.1 MB in the end (delta: 938.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:59:55,695 INFO L168 Benchmark]: RCFGBuilder took 297.41 ms. Allocated memory is still 60.8 MB. Free memory was 41.9 MB in the beginning and 32.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 07:59:55,696 INFO L168 Benchmark]: TraceAbstraction took 843.72 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 32.5 MB in the beginning and 46.7 MB in the end (delta: -14.2 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-11-07 07:59:55,697 INFO L168 Benchmark]: Witness Printer took 45.22 ms. Allocated memory is still 81.8 MB. Free memory was 46.7 MB in the beginning and 44.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 07:59:55,700 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 60.8 MB. Free memory is still 42.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 285.08 ms. Allocated memory is still 60.8 MB. Free memory was 41.4 MB in the beginning and 44.7 MB in the end (delta: -3.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.91 ms. Allocated memory is still 60.8 MB. Free memory was 44.5 MB in the beginning and 43.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.31 ms. Allocated memory is still 60.8 MB. Free memory was 43.1 MB in the beginning and 42.1 MB in the end (delta: 938.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 297.41 ms. Allocated memory is still 60.8 MB. Free memory was 41.9 MB in the beginning and 32.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 843.72 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 32.5 MB in the beginning and 46.7 MB in the end (delta: -14.2 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Witness Printer took 45.22 ms. Allocated memory is still 81.8 MB. Free memory was 46.7 MB in the beginning and 44.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 8 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 3, 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: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 5 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-07 07:59:55,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e696273a-30be-4b81-bdf9-9f073ca2d8c1/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE