./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3 --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 6bd2bcdd5da19c972288d5e8273d9a80de67d6f2 ........................................................................................................................................................................................................................................................................................................................................................................................................................................ 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_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3 --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 6bd2bcdd5da19c972288d5e8273d9a80de67d6f2 ............................................................................................................................................................................................................................................................................ 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-5709675 [2021-10-15 19:58:58,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:58:58,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:58:58,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:58:58,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:58:58,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:58:58,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:58:58,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:58:58,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:58:58,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:58:58,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:58:58,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:58:58,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:58:58,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:58:58,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:58:58,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:58:58,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:58:58,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:58:58,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:58:58,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:58:58,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:58:58,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:58:58,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:58:58,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:58:58,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:58:58,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:58:58,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:58:58,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:58:58,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:58:58,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:58:58,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:58:58,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:58:58,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:58:58,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:58:58,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:58:58,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:58:58,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:58:58,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:58:58,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:58:58,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:58:58,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:58:58,468 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 19:58:58,525 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:58:58,525 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:58:58,526 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:58:58,526 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:58:58,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:58:58,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:58:58,528 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:58:58,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:58:58,528 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:58:58,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:58:58,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:58:58,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:58:58,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:58:58,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:58:58,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:58:58,530 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:58:58,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:58:58,530 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:58:58,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:58:58,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:58:58,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:58:58,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:58:58,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:58:58,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:58:58,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:58:58,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:58:58,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:58:58,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:58:58,533 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:58:58,533 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:58:58,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:58:58,534 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:58:58,534 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_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bd2bcdd5da19c972288d5e8273d9a80de67d6f2 [2021-10-15 19:58:58,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:58:58,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:58:58,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:58:58,907 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:58:58,908 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:58:58,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c [2021-10-15 19:58:58,994 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/data/e9b14c9d3/42c88b3d8b0840f6b486cdb60f19186e/FLAG4dcc74f28 [2021-10-15 19:58:59,624 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:58:59,625 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c [2021-10-15 19:58:59,643 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/data/e9b14c9d3/42c88b3d8b0840f6b486cdb60f19186e/FLAG4dcc74f28 [2021-10-15 19:58:59,891 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/data/e9b14c9d3/42c88b3d8b0840f6b486cdb60f19186e [2021-10-15 19:58:59,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:58:59,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:58:59,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:58:59,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:58:59,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:58:59,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:58:59" (1/1) ... [2021-10-15 19:58:59,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc02b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:58:59, skipping insertion in model container [2021-10-15 19:58:59,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:58:59" (1/1) ... [2021-10-15 19:58:59,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:58:59,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:59:00,209 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_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c[7147,7160] [2021-10-15 19:59:00,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:59:00,231 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:59:00,348 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_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c[7147,7160] [2021-10-15 19:59:00,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:59:00,375 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:59:00,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:00 WrapperNode [2021-10-15 19:59:00,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:59:00,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:59:00,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:59:00,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:59:00,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:00" (1/1) ... [2021-10-15 19:59:00,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:00" (1/1) ... [2021-10-15 19:59:00,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:59:00,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:59:00,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:59:00,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:59:00,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:00" (1/1) ... [2021-10-15 19:59:00,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:00" (1/1) ... [2021-10-15 19:59:00,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:00" (1/1) ... [2021-10-15 19:59:00,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:00" (1/1) ... [2021-10-15 19:59:00,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:00" (1/1) ... [2021-10-15 19:59:00,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:00" (1/1) ... [2021-10-15 19:59:00,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:00" (1/1) ... [2021-10-15 19:59:00,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:59:00,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:59:00,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:59:00,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:59:00,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:00" (1/1) ... [2021-10-15 19:59:00,569 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:59:00,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:59:00,619 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:59:00,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:59:00,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:59:00,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:59:00,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-15 19:59:00,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 19:59:00,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-15 19:59:00,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:59:00,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:59:00,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 19:59:00,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-15 19:59:00,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 19:59:01,927 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:59:01,935 INFO L299 CfgBuilder]: Removed 56 assume(true) statements. [2021-10-15 19:59:01,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:59:01 BoogieIcfgContainer [2021-10-15 19:59:01,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:59:01,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:59:01,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:59:01,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:59:01,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:58:59" (1/3) ... [2021-10-15 19:59:01,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3f5507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:59:01, skipping insertion in model container [2021-10-15 19:59:01,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:00" (2/3) ... [2021-10-15 19:59:01,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3f5507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:59:01, skipping insertion in model container [2021-10-15 19:59:01,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:59:01" (3/3) ... [2021-10-15 19:59:01,962 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683a.c [2021-10-15 19:59:01,970 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:59:01,970 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-15 19:59:02,027 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:59:02,034 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=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 [2021-10-15 19:59:02,035 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-15 19:59:02,053 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 129 places, 215 transitions, 430 flow [2021-10-15 19:59:02,119 INFO L129 PetriNetUnfolder]: 87/215 cut-off events. [2021-10-15 19:59:02,120 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:59:02,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 215 events. 87/215 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 551 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2021-10-15 19:59:02,122 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 215 transitions, 430 flow [2021-10-15 19:59:02,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 209 transitions, 418 flow [2021-10-15 19:59:02,144 INFO L129 PetriNetUnfolder]: 15/51 cut-off events. [2021-10-15 19:59:02,144 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:59:02,145 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:59:02,146 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:59:02,146 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:59:02,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:59:02,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1964703289, now seen corresponding path program 1 times [2021-10-15 19:59:02,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:59:02,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374067172] [2021-10-15 19:59:02,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:59:02,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:59:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:59:02,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:59:02,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:59:02,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374067172] [2021-10-15 19:59:02,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374067172] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:59:02,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:59:02,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-15 19:59:02,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105441641] [2021-10-15 19:59:02,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-15 19:59:02,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:59:02,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-15 19:59:02,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-15 19:59:02,425 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 215 [2021-10-15 19:59:02,437 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 209 transitions, 418 flow. Second operand has 2 states, 2 states have (on average 181.5) internal successors, (363), 2 states have internal predecessors, (363), 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) [2021-10-15 19:59:02,437 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:59:02,439 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 215 [2021-10-15 19:59:02,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:59:02,509 INFO L129 PetriNetUnfolder]: 51/175 cut-off events. [2021-10-15 19:59:02,510 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:59:02,511 INFO L84 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 175 events. 51/175 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 448 event pairs, 0 based on Foata normal form. 34/158 useless extension candidates. Maximal degree in co-relation 175. Up to 20 conditions per place. [2021-10-15 19:59:02,514 INFO L132 encePairwiseOnDemand]: 181/215 looper letters, 0 selfloop transitions, 0 changer transitions 0/175 dead transitions. [2021-10-15 19:59:02,514 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 175 transitions, 350 flow [2021-10-15 19:59:02,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-15 19:59:02,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-15 19:59:02,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 394 transitions. [2021-10-15 19:59:02,547 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9162790697674419 [2021-10-15 19:59:02,548 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 394 transitions. [2021-10-15 19:59:02,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 394 transitions. [2021-10-15 19:59:02,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:59:02,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 394 transitions. [2021-10-15 19:59:02,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 197.0) internal successors, (394), 2 states have internal predecessors, (394), 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) [2021-10-15 19:59:02,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 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) [2021-10-15 19:59:02,581 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 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) [2021-10-15 19:59:02,583 INFO L186 Difference]: Start difference. First operand has 125 places, 209 transitions, 418 flow. Second operand 2 states and 394 transitions. [2021-10-15 19:59:02,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 175 transitions, 350 flow [2021-10-15 19:59:02,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 175 transitions, 350 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:59:02,600 INFO L242 Difference]: Finished difference. Result has 126 places, 175 transitions, 350 flow [2021-10-15 19:59:02,603 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=350, PETRI_PLACES=126, PETRI_TRANSITIONS=175} [2021-10-15 19:59:02,604 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 1 predicate places. [2021-10-15 19:59:02,605 INFO L470 AbstractCegarLoop]: Abstraction has has 126 places, 175 transitions, 350 flow [2021-10-15 19:59:02,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 181.5) internal successors, (363), 2 states have internal predecessors, (363), 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) [2021-10-15 19:59:02,606 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:59:02,606 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:59:02,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 19:59:02,607 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:59:02,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:59:02,608 INFO L82 PathProgramCache]: Analyzing trace with hash 553662369, now seen corresponding path program 1 times [2021-10-15 19:59:02,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:59:02,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664811479] [2021-10-15 19:59:02,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:59:02,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:59:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:59:02,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:59:02,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:59:02,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664811479] [2021-10-15 19:59:02,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664811479] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:59:02,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:59:02,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:59:02,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416856832] [2021-10-15 19:59:02,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:59:02,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:59:02,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:59:02,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:59:02,781 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 215 [2021-10-15 19:59:02,804 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 175 transitions, 350 flow. Second operand has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 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) [2021-10-15 19:59:02,804 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:59:02,804 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 215 [2021-10-15 19:59:02,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:59:02,845 INFO L129 PetriNetUnfolder]: 50/175 cut-off events. [2021-10-15 19:59:02,845 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:59:02,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 175 events. 50/175 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 442 event pairs, 0 based on Foata normal form. 1/125 useless extension candidates. Maximal degree in co-relation 181. Up to 20 conditions per place. [2021-10-15 19:59:02,848 INFO L132 encePairwiseOnDemand]: 213/215 looper letters, 5 selfloop transitions, 0 changer transitions 1/175 dead transitions. [2021-10-15 19:59:02,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 175 transitions, 362 flow [2021-10-15 19:59:02,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:59:02,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 19:59:02,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2021-10-15 19:59:02,852 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8155038759689922 [2021-10-15 19:59:02,852 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 526 transitions. [2021-10-15 19:59:02,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 526 transitions. [2021-10-15 19:59:02,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:59:02,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 526 transitions. [2021-10-15 19:59:02,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 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) [2021-10-15 19:59:02,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 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) [2021-10-15 19:59:02,867 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 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) [2021-10-15 19:59:02,867 INFO L186 Difference]: Start difference. First operand has 126 places, 175 transitions, 350 flow. Second operand 3 states and 526 transitions. [2021-10-15 19:59:02,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 175 transitions, 362 flow [2021-10-15 19:59:02,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 175 transitions, 362 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:59:02,880 INFO L242 Difference]: Finished difference. Result has 129 places, 174 transitions, 350 flow [2021-10-15 19:59:02,881 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=350, PETRI_PLACES=129, PETRI_TRANSITIONS=174} [2021-10-15 19:59:02,882 INFO L334 CegarLoopForPetriNet]: 125 programPoint places, 4 predicate places. [2021-10-15 19:59:02,882 INFO L470 AbstractCegarLoop]: Abstraction has has 129 places, 174 transitions, 350 flow [2021-10-15 19:59:02,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 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) [2021-10-15 19:59:02,884 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:59:02,884 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:59:02,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-15 19:59:02,885 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:59:02,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:59:02,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1139099466, now seen corresponding path program 1 times [2021-10-15 19:59:02,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:59:02,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6236542] [2021-10-15 19:59:02,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:59:02,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:59:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:59:03,146 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:59:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:59:03,388 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:59:03,388 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-15 19:59:03,390 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:59:03,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-15 19:59:03,400 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:59:03,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:59:03 BoogieIcfgContainer [2021-10-15 19:59:03,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:59:03,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:59:03,510 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:59:03,510 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:59:03,511 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:59:01" (3/4) ... [2021-10-15 19:59:03,514 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 19:59:03,515 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:59:03,520 INFO L168 Benchmark]: Toolchain (without parser) took 3620.29 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 53.8 MB in the beginning and 54.5 MB in the end (delta: -663.9 kB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:59:03,521 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 96.5 MB. Free memory is still 71.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:59:03,528 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.00 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 53.6 MB in the beginning and 94.6 MB in the end (delta: -40.9 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:59:03,530 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.04 ms. Allocated memory is still 123.7 MB. Free memory was 94.6 MB in the beginning and 90.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:59:03,531 INFO L168 Benchmark]: Boogie Preprocessor took 75.37 ms. Allocated memory is still 123.7 MB. Free memory was 90.8 MB in the beginning and 87.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:59:03,532 INFO L168 Benchmark]: RCFGBuilder took 1386.79 ms. Allocated memory is still 123.7 MB. Free memory was 87.4 MB in the beginning and 71.5 MB in the end (delta: 15.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-15 19:59:03,532 INFO L168 Benchmark]: TraceAbstraction took 1562.95 ms. Allocated memory is still 123.7 MB. Free memory was 71.1 MB in the beginning and 54.5 MB in the end (delta: 16.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:59:03,533 INFO L168 Benchmark]: Witness Printer took 5.66 ms. Allocated memory is still 123.7 MB. Free memory is still 54.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:59:03,544 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 96.5 MB. Free memory is still 71.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 479.00 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 53.6 MB in the beginning and 94.6 MB in the end (delta: -40.9 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 101.04 ms. Allocated memory is still 123.7 MB. Free memory was 94.6 MB in the beginning and 90.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.37 ms. Allocated memory is still 123.7 MB. Free memory was 90.8 MB in the beginning and 87.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1386.79 ms. Allocated memory is still 123.7 MB. Free memory was 87.4 MB in the beginning and 71.5 MB in the end (delta: 15.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1562.95 ms. Allocated memory is still 123.7 MB. Free memory was 71.1 MB in the beginning and 54.5 MB in the end (delta: 16.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. * Witness Printer took 5.66 ms. Allocated memory is still 123.7 MB. Free memory is still 54.5 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: 300]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 299. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L291] double x = 1.0 / 0.0; [L292] double y = __VERIFIER_nondet_double(); [L248] __int32_t hx, lx; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L250] ieee_double_shape_type ew_u; [L251] ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] (lx) = ew_u.parts.lsw [L255] hx &= 0x7fffffff [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L294] EXPR isinf_double(x) && isfinite_double(y) [L262] __int32_t hx; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L264] ieee_double_shape_type gh_u; [L265] gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] (hx) = gh_u.parts.msw [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L294] EXPR isinf_double(x) && isfinite_double(y) VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L294] COND TRUE isinf_double(x) && isfinite_double(y) && y < 0.0 [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L296] double res = __ieee754_atan2(y, x); [L299] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L299] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L300] reach_error() VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 9.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1377.0ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 298.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 99.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 6 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=418occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.9ms SsaConstructionTime, 365.1ms SatisfiabilityAnalysisTime, 139.8ms InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-15 19:59:03,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/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-5709675 [2021-10-15 19:59:06,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:59:06,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:59:06,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:59:06,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:59:06,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:59:06,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:59:06,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:59:06,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:59:06,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:59:06,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:59:06,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:59:06,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:59:06,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:59:06,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:59:06,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:59:06,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:59:06,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:59:06,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:59:06,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:59:06,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:59:06,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:59:06,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:59:06,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:59:06,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:59:06,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:59:06,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:59:06,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:59:06,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:59:06,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:59:06,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:59:06,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:59:06,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:59:06,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:59:06,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:59:06,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:59:06,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:59:06,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:59:06,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:59:06,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:59:06,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:59:06,804 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-15 19:59:06,858 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:59:06,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:59:06,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:59:06,859 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:59:06,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:59:06,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:59:06,862 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:59:06,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:59:06,863 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:59:06,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:59:06,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:59:06,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:59:06,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:59:06,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:59:06,866 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-15 19:59:06,866 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-15 19:59:06,866 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:59:06,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:59:06,867 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:59:06,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:59:06,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:59:06,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:59:06,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:59:06,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:59:06,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:59:06,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:59:06,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:59:06,869 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-15 19:59:06,870 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-15 19:59:06,870 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:59:06,870 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:59:06,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:59:06,871 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:59:06,871 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-15 19:59:06,871 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_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bd2bcdd5da19c972288d5e8273d9a80de67d6f2 [2021-10-15 19:59:07,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:59:07,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:59:07,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:59:07,383 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:59:07,384 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:59:07,385 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c [2021-10-15 19:59:07,478 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/data/1bf78b111/af1cdaed483543c484387fc76a13750c/FLAG8d0517256 [2021-10-15 19:59:08,269 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:59:08,269 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c [2021-10-15 19:59:08,281 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/data/1bf78b111/af1cdaed483543c484387fc76a13750c/FLAG8d0517256 [2021-10-15 19:59:08,568 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/data/1bf78b111/af1cdaed483543c484387fc76a13750c [2021-10-15 19:59:08,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:59:08,573 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:59:08,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:59:08,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:59:08,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:59:08,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:59:08" (1/1) ... [2021-10-15 19:59:08,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed1f245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:08, skipping insertion in model container [2021-10-15 19:59:08,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:59:08" (1/1) ... [2021-10-15 19:59:08,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:59:08,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:59:08,996 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_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c[7147,7160] [2021-10-15 19:59:09,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:59:09,036 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:59:09,180 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_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c[7147,7160] [2021-10-15 19:59:09,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:59:09,231 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:59:09,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:09 WrapperNode [2021-10-15 19:59:09,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:59:09,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:59:09,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:59:09,235 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:59:09,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:09" (1/1) ... [2021-10-15 19:59:09,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:09" (1/1) ... [2021-10-15 19:59:09,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:59:09,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:59:09,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:59:09,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:59:09,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:09" (1/1) ... [2021-10-15 19:59:09,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:09" (1/1) ... [2021-10-15 19:59:09,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:09" (1/1) ... [2021-10-15 19:59:09,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:09" (1/1) ... [2021-10-15 19:59:09,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:09" (1/1) ... [2021-10-15 19:59:09,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:09" (1/1) ... [2021-10-15 19:59:09,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:09" (1/1) ... [2021-10-15 19:59:09,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:59:09,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:59:09,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:59:09,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:59:09,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:09" (1/1) ... [2021-10-15 19:59:09,500 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:59:09,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:59:09,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:59:09,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:59:09,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-15 19:59:09,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-15 19:59:09,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-15 19:59:09,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:59:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-15 19:59:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-15 19:59:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:59:09,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:59:09,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-15 19:59:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 19:59:50,541 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:59:50,542 INFO L299 CfgBuilder]: Removed 56 assume(true) statements. [2021-10-15 19:59:50,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:59:50 BoogieIcfgContainer [2021-10-15 19:59:50,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:59:50,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:59:50,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:59:50,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:59:50,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:59:08" (1/3) ... [2021-10-15 19:59:50,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55323fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:59:50, skipping insertion in model container [2021-10-15 19:59:50,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:59:09" (2/3) ... [2021-10-15 19:59:50,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55323fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:59:50, skipping insertion in model container [2021-10-15 19:59:50,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:59:50" (3/3) ... [2021-10-15 19:59:50,557 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683a.c [2021-10-15 19:59:50,564 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:59:50,565 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-15 19:59:50,638 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:59:50,646 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=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 [2021-10-15 19:59:50,647 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-15 19:59:50,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 129 places, 215 transitions, 430 flow [2021-10-15 19:59:50,737 INFO L129 PetriNetUnfolder]: 87/215 cut-off events. [2021-10-15 19:59:50,737 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:59:50,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 215 events. 87/215 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 551 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2021-10-15 19:59:50,740 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 215 transitions, 430 flow [2021-10-15 19:59:50,751 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 209 transitions, 418 flow [2021-10-15 19:59:50,760 INFO L129 PetriNetUnfolder]: 15/51 cut-off events. [2021-10-15 19:59:50,760 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:59:50,760 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:59:50,761 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:59:50,762 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:59:50,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:59:50,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1964703289, now seen corresponding path program 1 times [2021-10-15 19:59:50,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-15 19:59:50,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146844351] [2021-10-15 19:59:50,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:59:50,784 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-15 19:59:50,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/mathsat [2021-10-15 19:59:50,785 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-15 19:59:50,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-15 19:59:50,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:59:51,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 [2021-10-15 19:59:51,144 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 [2021-10-15 19:59:51,149 INFO L168 Benchmark]: Toolchain (without parser) took 42574.56 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.4 MB in the beginning and 35.7 MB in the end (delta: -2.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:59:51,149 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 56.6 MB. Free memory is still 37.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:59:51,150 INFO L168 Benchmark]: CACSL2BoogieTranslator took 641.97 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.1 MB in the beginning and 46.5 MB in the end (delta: -13.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:59:51,151 INFO L168 Benchmark]: Boogie Procedure Inliner took 127.33 ms. Allocated memory is still 69.2 MB. Free memory was 46.5 MB in the beginning and 42.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:59:51,152 INFO L168 Benchmark]: Boogie Preprocessor took 121.62 ms. Allocated memory is still 69.2 MB. Free memory was 42.6 MB in the beginning and 38.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:59:51,154 INFO L168 Benchmark]: RCFGBuilder took 41059.46 ms. Allocated memory is still 69.2 MB. Free memory was 38.9 MB in the beginning and 32.9 MB in the end (delta: 5.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. [2021-10-15 19:59:51,154 INFO L168 Benchmark]: TraceAbstraction took 598.97 ms. Allocated memory is still 69.2 MB. Free memory was 32.6 MB in the beginning and 36.0 MB in the end (delta: -3.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:59:51,159 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 56.6 MB. Free memory is still 37.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 641.97 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.1 MB in the beginning and 46.5 MB in the end (delta: -13.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 127.33 ms. Allocated memory is still 69.2 MB. Free memory was 46.5 MB in the beginning and 42.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 121.62 ms. Allocated memory is still 69.2 MB. Free memory was 42.6 MB in the beginning and 38.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 41059.46 ms. Allocated memory is still 69.2 MB. Free memory was 38.9 MB in the beginning and 32.9 MB in the end (delta: 5.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 598.97 ms. Allocated memory is still 69.2 MB. Free memory was 32.6 MB in the beginning and 36.0 MB in the end (delta: -3.3 MB). There was no memory consumed. 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. [2021-10-15 19:59:51,387 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-15 19:59:51,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c023bb6-3117-4732-9bdd-3c9e4a5b6828/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...