./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt --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 bb223ac5dd337697f7c4caeca580bc7e9e7345b8 ........................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt --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 bb223ac5dd337697f7c4caeca580bc7e9e7345b8 ................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:35:52,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:35:52,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:35:52,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:35:52,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:35:52,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:35:52,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:35:52,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:35:52,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:35:52,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:35:52,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:35:52,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:35:52,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:35:52,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:35:52,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:35:52,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:35:52,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:35:52,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:35:52,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:35:52,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:35:52,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:35:52,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:35:52,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:35:52,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:35:52,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:35:52,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:35:52,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:35:52,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:35:52,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:35:52,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:35:52,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:35:52,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:35:52,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:35:52,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:35:52,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:35:52,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:35:52,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:35:52,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:35:52,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:35:52,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:35:52,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:35:52,336 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:35:52,376 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:35:52,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:35:52,376 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:35:52,384 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:35:52,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:35:52,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:35:52,387 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:35:52,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:35:52,388 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:35:52,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:35:52,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:35:52,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:35:52,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:35:52,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:35:52,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:35:52,390 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:35:52,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:35:52,391 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:35:52,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:35:52,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:35:52,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:35:52,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:35:52,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:35:52,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:35:52,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:35:52,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:35:52,393 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:35:52,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:35:52,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:35:52,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:35:52,396 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_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb223ac5dd337697f7c4caeca580bc7e9e7345b8 [2021-10-13 00:35:52,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:35:52,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:35:52,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:35:52,680 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:35:52,681 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:35:52,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2021-10-13 00:35:52,779 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/data/3a8794b33/349d3613970c4aad9f1f88eff26e3898/FLAGe665a235d [2021-10-13 00:35:53,208 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:35:53,209 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2021-10-13 00:35:53,216 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/data/3a8794b33/349d3613970c4aad9f1f88eff26e3898/FLAGe665a235d [2021-10-13 00:35:53,617 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/data/3a8794b33/349d3613970c4aad9f1f88eff26e3898 [2021-10-13 00:35:53,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:35:53,635 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:35:53,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:35:53,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:35:53,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:35:53,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:35:53" (1/1) ... [2021-10-13 00:35:53,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@528276a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:53, skipping insertion in model container [2021-10-13 00:35:53,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:35:53" (1/1) ... [2021-10-13 00:35:53,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:35:53,693 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:35:53,903 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_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c[3330,3343] [2021-10-13 00:35:53,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:35:53,935 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:35:54,000 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_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c[3330,3343] [2021-10-13 00:35:54,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:35:54,032 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:35:54,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:54 WrapperNode [2021-10-13 00:35:54,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:35:54,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:35:54,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:35:54,038 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:35:54,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:54" (1/1) ... [2021-10-13 00:35:54,067 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:54" (1/1) ... [2021-10-13 00:35:54,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:35:54,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:35:54,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:35:54,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:35:54,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:54" (1/1) ... [2021-10-13 00:35:54,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:54" (1/1) ... [2021-10-13 00:35:54,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:54" (1/1) ... [2021-10-13 00:35:54,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:54" (1/1) ... [2021-10-13 00:35:54,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:54" (1/1) ... [2021-10-13 00:35:54,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:54" (1/1) ... [2021-10-13 00:35:54,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:54" (1/1) ... [2021-10-13 00:35:54,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:35:54,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:35:54,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:35:54,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:35:54,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:54" (1/1) ... [2021-10-13 00:35:54,196 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:35:54,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:54,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:35:54,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:35:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:35:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:35:54,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-13 00:35:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:35:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-13 00:35:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:35:54,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:35:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:35:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-13 00:35:54,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:35:54,587 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:35:54,587 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-13 00:35:54,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:35:54 BoogieIcfgContainer [2021-10-13 00:35:54,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:35:54,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:35:54,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:35:54,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:35:54,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:35:53" (1/3) ... [2021-10-13 00:35:54,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c40567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:35:54, skipping insertion in model container [2021-10-13 00:35:54,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:54" (2/3) ... [2021-10-13 00:35:54,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c40567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:35:54, skipping insertion in model container [2021-10-13 00:35:54,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:35:54" (3/3) ... [2021-10-13 00:35:54,611 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b.c [2021-10-13 00:35:54,616 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:35:54,616 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:35:54,697 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:35:54,716 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-13 00:35:54,717 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:35:54,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 36 states have internal predecessors, (57), 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) [2021-10-13 00:35:54,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 00:35:54,733 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:54,734 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:35:54,734 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:35:54,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:54,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2021-10-13 00:35:54,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:54,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618048968] [2021-10-13 00:35:54,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:54,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:54,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:54,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:54,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618048968] [2021-10-13 00:35:54,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618048968] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:35:54,925 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:35:54,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:35:54,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382550044] [2021-10-13 00:35:54,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 00:35:54,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:54,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 00:35:54,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:35:54,948 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 36 states have internal predecessors, (57), 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 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-13 00:35:54,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:54,967 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2021-10-13 00:35:54,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:35:54,968 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-10-13 00:35:54,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:54,975 INFO L225 Difference]: With dead ends: 72 [2021-10-13 00:35:54,975 INFO L226 Difference]: Without dead ends: 34 [2021-10-13 00:35:54,979 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:35:54,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-13 00:35:55,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-13 00:35:55,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 33 states have internal predecessors, (45), 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) [2021-10-13 00:35:55,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2021-10-13 00:35:55,010 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2021-10-13 00:35:55,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:55,010 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2021-10-13 00:35:55,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-13 00:35:55,011 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2021-10-13 00:35:55,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 00:35:55,012 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:55,012 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:35:55,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:35:55,012 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:35:55,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:55,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2021-10-13 00:35:55,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:55,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153366318] [2021-10-13 00:35:55,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:55,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:35:55,087 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:35:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:35:55,206 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:35:55,207 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:35:55,209 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:35:55,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:35:55,217 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:35:55,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:35:55 BoogieIcfgContainer [2021-10-13 00:35:55,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:35:55,251 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:35:55,251 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:35:55,251 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:35:55,252 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:35:54" (3/4) ... [2021-10-13 00:35:55,255 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:35:55,255 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:35:55,261 INFO L168 Benchmark]: Toolchain (without parser) took 1621.05 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 58.9 MB in the beginning and 84.4 MB in the end (delta: -25.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:35:55,262 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory was 64.9 MB in the beginning and 64.9 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:35:55,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.92 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 58.6 MB in the beginning and 85.6 MB in the end (delta: -26.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:35:55,263 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.31 ms. Allocated memory is still 113.2 MB. Free memory was 85.6 MB in the beginning and 83.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:35:55,264 INFO L168 Benchmark]: Boogie Preprocessor took 69.79 ms. Allocated memory is still 113.2 MB. Free memory was 83.5 MB in the beginning and 81.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:35:55,265 INFO L168 Benchmark]: RCFGBuilder took 403.82 ms. Allocated memory is still 113.2 MB. Free memory was 81.4 MB in the beginning and 66.1 MB in the end (delta: 15.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:35:55,265 INFO L168 Benchmark]: TraceAbstraction took 659.21 ms. Allocated memory is still 113.2 MB. Free memory was 66.1 MB in the beginning and 85.0 MB in the end (delta: -18.9 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:35:55,266 INFO L168 Benchmark]: Witness Printer took 4.23 ms. Allocated memory is still 113.2 MB. Free memory is still 85.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:35:55,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory was 64.9 MB in the beginning and 64.9 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 398.92 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 58.6 MB in the beginning and 85.6 MB in the end (delta: -26.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.31 ms. Allocated memory is still 113.2 MB. Free memory was 85.6 MB in the beginning and 83.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.79 ms. Allocated memory is still 113.2 MB. Free memory was 83.5 MB in the beginning and 81.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 403.82 ms. Allocated memory is still 113.2 MB. Free memory was 81.4 MB in the beginning and 66.1 MB in the end (delta: 15.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 659.21 ms. Allocated memory is still 113.2 MB. Free memory was 66.1 MB in the beginning and 85.0 MB in the end (delta: -18.9 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.23 ms. Allocated memory is still 113.2 MB. Free memory is still 85.0 MB. 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 144]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 143, overapproximation of someUnaryDOUBLEoperation at line 46, overapproximation of bitwiseAnd at line 64, overapproximation of someUnaryFLOAToperation at line 139, overapproximation of someBinaryArithmeticFLOAToperation at line 67. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L31-L36] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L38-L43] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L45-L49] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L51-L53] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L139] float x = -0.0f; [L56] float w, s1, s2, z; [L57] __int32_t ix, hx, id; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L60] ieee_float_shape_type gf_u; [L61] gf_u.value = (x) [L62] EXPR gf_u.word [L62] (hx) = gf_u.word [L64] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L65] COND TRUE ix >= 0x50800000 VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L66] COND TRUE ((ix) > 0x7f800000L) [L67] return x + x; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L140] float res = atan_float(x); [L143] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L143] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L144] reach_error() VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 520.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 7.4ms, AutomataDifference: 44.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 48 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 19.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.0ms SsaConstructionTime, 115.5ms SatisfiabilityAnalysisTime, 58.7ms InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2021-10-13 00:35:55,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:35:57,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:35:57,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:35:57,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:35:57,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:35:57,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:35:57,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:35:57,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:35:57,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:35:57,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:35:57,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:35:57,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:35:57,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:35:57,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:35:57,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:35:57,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:35:57,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:35:57,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:35:57,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:35:57,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:35:57,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:35:57,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:35:57,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:35:57,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:35:57,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:35:57,948 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:35:57,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:35:57,950 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:35:57,951 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:35:57,952 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:35:57,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:35:57,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:35:57,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:35:57,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:35:57,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:35:57,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:35:57,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:35:57,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:35:57,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:35:57,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:35:57,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:35:57,977 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-13 00:35:58,005 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:35:58,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:35:58,006 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:35:58,006 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:35:58,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:35:58,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:35:58,009 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:35:58,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:35:58,009 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:35:58,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:35:58,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:35:58,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:35:58,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:35:58,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:35:58,012 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 00:35:58,012 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 00:35:58,012 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:35:58,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:35:58,013 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:35:58,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:35:58,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:35:58,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:35:58,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:35:58,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:35:58,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:35:58,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:35:58,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:35:58,015 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 00:35:58,015 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 00:35:58,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:35:58,016 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:35:58,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 00:35:58,016 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_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb223ac5dd337697f7c4caeca580bc7e9e7345b8 [2021-10-13 00:35:58,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:35:58,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:35:58,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:35:58,427 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:35:58,428 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:35:58,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2021-10-13 00:35:58,513 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/data/e951b0b59/cec3d0abb5e040bc83fd2330ed35b438/FLAGa37c1ec9d [2021-10-13 00:35:59,106 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:35:59,108 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2021-10-13 00:35:59,117 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/data/e951b0b59/cec3d0abb5e040bc83fd2330ed35b438/FLAGa37c1ec9d [2021-10-13 00:35:59,435 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/data/e951b0b59/cec3d0abb5e040bc83fd2330ed35b438 [2021-10-13 00:35:59,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:35:59,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:35:59,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:35:59,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:35:59,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:35:59,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:35:59" (1/1) ... [2021-10-13 00:35:59,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6873fb4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:59, skipping insertion in model container [2021-10-13 00:35:59,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:35:59" (1/1) ... [2021-10-13 00:35:59,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:35:59,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:35:59,701 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_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c[3330,3343] [2021-10-13 00:35:59,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:35:59,772 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:35:59,833 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_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c[3330,3343] [2021-10-13 00:35:59,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:35:59,884 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:35:59,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:59 WrapperNode [2021-10-13 00:35:59,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:35:59,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:35:59,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:35:59,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:35:59,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:59" (1/1) ... [2021-10-13 00:35:59,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:59" (1/1) ... [2021-10-13 00:35:59,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:35:59,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:35:59,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:35:59,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:35:59,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:59" (1/1) ... [2021-10-13 00:35:59,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:59" (1/1) ... [2021-10-13 00:36:00,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:59" (1/1) ... [2021-10-13 00:36:00,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:59" (1/1) ... [2021-10-13 00:36:00,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:59" (1/1) ... [2021-10-13 00:36:00,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:59" (1/1) ... [2021-10-13 00:36:00,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:59" (1/1) ... [2021-10-13 00:36:00,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:36:00,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:36:00,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:36:00,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:36:00,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:59" (1/1) ... [2021-10-13 00:36:00,076 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:36:00,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:00,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:36:00,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:36:00,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-10-13 00:36:00,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 00:36:00,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:36:00,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-13 00:36:00,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 00:36:00,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:36:00,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:36:00,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-13 00:36:00,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 00:36:00,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:36:11,013 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:36:11,013 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-13 00:36:11,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:36:11 BoogieIcfgContainer [2021-10-13 00:36:11,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:36:11,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:36:11,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:36:11,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:36:11,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:35:59" (1/3) ... [2021-10-13 00:36:11,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ebf7e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:36:11, skipping insertion in model container [2021-10-13 00:36:11,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:59" (2/3) ... [2021-10-13 00:36:11,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ebf7e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:36:11, skipping insertion in model container [2021-10-13 00:36:11,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:36:11" (3/3) ... [2021-10-13 00:36:11,024 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b.c [2021-10-13 00:36:11,030 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:36:11,030 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:36:11,078 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:36:11,084 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-13 00:36:11,085 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:36:11,099 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 36 states have internal predecessors, (57), 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) [2021-10-13 00:36:11,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 00:36:11,105 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:36:11,105 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:36:11,106 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:36:11,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:11,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2021-10-13 00:36:11,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:36:11,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353150399] [2021-10-13 00:36:11,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:11,126 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:36:11,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:36:11,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:36:11,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 00:36:11,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:36:11,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:36:11,442 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:577) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertConjunctsOfCodeBlocks.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertConjuncts(AnnotateAndAssertConjunctsOfCodeBlocks.java:135) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertNonCall(AnnotateAndAssertConjunctsOfCodeBlocks.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:101) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:312) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:211) ... 31 more [2021-10-13 00:36:11,447 INFO L168 Benchmark]: Toolchain (without parser) took 12002.94 ms. Allocated memory is still 67.1 MB. Free memory was 46.5 MB in the beginning and 33.6 MB in the end (delta: 12.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:36:11,448 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 67.1 MB. Free memory is still 47.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:36:11,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 442.22 ms. Allocated memory is still 67.1 MB. Free memory was 46.2 MB in the beginning and 47.0 MB in the end (delta: -798.2 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:36:11,449 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.74 ms. Allocated memory is still 67.1 MB. Free memory was 47.0 MB in the beginning and 44.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:36:11,450 INFO L168 Benchmark]: Boogie Preprocessor took 90.03 ms. Allocated memory is still 67.1 MB. Free memory was 44.4 MB in the beginning and 42.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:36:11,451 INFO L168 Benchmark]: RCFGBuilder took 10950.22 ms. Allocated memory is still 67.1 MB. Free memory was 42.3 MB in the beginning and 43.8 MB in the end (delta: -1.5 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:36:11,451 INFO L168 Benchmark]: TraceAbstraction took 426.79 ms. Allocated memory is still 67.1 MB. Free memory was 43.6 MB in the beginning and 33.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:36:11,455 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 67.1 MB. Free memory is still 47.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 442.22 ms. Allocated memory is still 67.1 MB. Free memory was 46.2 MB in the beginning and 47.0 MB in the end (delta: -798.2 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.74 ms. Allocated memory is still 67.1 MB. Free memory was 47.0 MB in the beginning and 44.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 90.03 ms. Allocated memory is still 67.1 MB. Free memory was 44.4 MB in the beginning and 42.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10950.22 ms. Allocated memory is still 67.1 MB. Free memory was 42.3 MB in the beginning and 43.8 MB in the end (delta: -1.5 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 426.79 ms. Allocated memory is still 67.1 MB. Free memory was 43.6 MB in the beginning and 33.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 00:36:11,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb97f0cf-ee26-42c2-9ccd-ff57186f46fe/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...