./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0550b.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_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/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_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0550b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/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_7e981031-b7d1-4aec-b005-8f2f582537da/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 4bf6eafdbe8fda5da55032493563d6f73b18119b ................................................................................................................................................................................................................................................................................................................................................................................... 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_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/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_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0550b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/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_7e981031-b7d1-4aec-b005-8f2f582537da/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 4bf6eafdbe8fda5da55032493563d6f73b18119b ............................................................................................................................................................................................................................................................................ 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 19:45:44,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:45:44,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:45:44,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:45:44,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:45:44,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:45:44,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:45:44,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:45:44,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:45:44,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:45:44,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:45:44,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:45:44,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:45:44,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:45:44,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:45:44,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:45:44,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:45:44,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:45:44,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:45:44,495 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:45:44,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:45:44,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:45:44,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:45:44,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:45:44,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:45:44,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:45:44,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:45:44,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:45:44,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:45:44,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:45:44,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:45:44,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:45:44,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:45:44,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:45:44,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:45:44,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:45:44,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:45:44,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:45:44,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:45:44,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:45:44,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:45:44,526 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 19:45:44,554 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:45:44,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:45:44,554 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:45:44,554 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:45:44,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:45:44,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:45:44,556 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:45:44,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:45:44,556 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:45:44,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:45:44,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:45:44,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:45:44,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:45:44,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:45:44,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:45:44,558 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:45:44,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:45:44,558 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:45:44,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:45:44,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:45:44,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:45:44,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:45:44,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:45:44,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:45:44,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:45:44,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:45:44,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:45:44,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:45:44,561 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:45:44,561 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:45:44,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:45:44,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:45:44,562 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_7e981031-b7d1-4aec-b005-8f2f582537da/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bf6eafdbe8fda5da55032493563d6f73b18119b [2021-10-15 19:45:44,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:45:44,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:45:44,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:45:44,892 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:45:44,893 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:45:44,894 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/float-newlib/float_req_bl_0550b.c [2021-10-15 19:45:44,983 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/data/baa515d2a/267056efa7c14a6d842408ed6223ff77/FLAG06c83b057 [2021-10-15 19:45:45,516 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:45:45,517 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/sv-benchmarks/c/float-newlib/float_req_bl_0550b.c [2021-10-15 19:45:45,535 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/data/baa515d2a/267056efa7c14a6d842408ed6223ff77/FLAG06c83b057 [2021-10-15 19:45:45,837 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/data/baa515d2a/267056efa7c14a6d842408ed6223ff77 [2021-10-15 19:45:45,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:45:45,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:45:45,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:45:45,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:45:45,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:45:45,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:45:45" (1/1) ... [2021-10-15 19:45:45,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a58290c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:45, skipping insertion in model container [2021-10-15 19:45:45,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:45:45" (1/1) ... [2021-10-15 19:45:45,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:45:45,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:45:46,253 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_7e981031-b7d1-4aec-b005-8f2f582537da/sv-benchmarks/c/float-newlib/float_req_bl_0550b.c[15673,15686] [2021-10-15 19:45:46,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:45:46,319 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:45:46,487 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_7e981031-b7d1-4aec-b005-8f2f582537da/sv-benchmarks/c/float-newlib/float_req_bl_0550b.c[15673,15686] [2021-10-15 19:45:46,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:45:46,544 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:45:46,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:46 WrapperNode [2021-10-15 19:45:46,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:45:46,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:45:46,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:45:46,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:45:46,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:46" (1/1) ... [2021-10-15 19:45:46,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:46" (1/1) ... [2021-10-15 19:45:46,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:45:46,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:45:46,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:45:46,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:45:46,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:46" (1/1) ... [2021-10-15 19:45:46,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:46" (1/1) ... [2021-10-15 19:45:46,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:46" (1/1) ... [2021-10-15 19:45:46,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:46" (1/1) ... [2021-10-15 19:45:46,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:46" (1/1) ... [2021-10-15 19:45:46,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:46" (1/1) ... [2021-10-15 19:45:46,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:46" (1/1) ... [2021-10-15 19:45:46,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:45:46,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:45:46,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:45:46,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:45:46,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:46" (1/1) ... [2021-10-15 19:45:46,917 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:45:46,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:45:46,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:45:46,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:45:46,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:45:46,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-15 19:45:46,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 19:45:46,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-15 19:45:46,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 19:45:46,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-15 19:45:46,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:45:46,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:45:46,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:45:46,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 19:45:48,791 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:45:48,792 INFO L299 CfgBuilder]: Removed 227 assume(true) statements. [2021-10-15 19:45:48,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:45:48 BoogieIcfgContainer [2021-10-15 19:45:48,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:45:48,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:45:48,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:45:48,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:45:48,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:45:45" (1/3) ... [2021-10-15 19:45:48,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae3bdec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:45:48, skipping insertion in model container [2021-10-15 19:45:48,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:46" (2/3) ... [2021-10-15 19:45:48,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae3bdec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:45:48, skipping insertion in model container [2021-10-15 19:45:48,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:45:48" (3/3) ... [2021-10-15 19:45:48,812 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0550b.c [2021-10-15 19:45:48,816 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:45:48,816 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-15 19:45:48,865 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:45:48,873 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 19:45:48,873 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-15 19:45:48,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 406 places, 695 transitions, 1390 flow [2021-10-15 19:45:49,022 INFO L129 PetriNetUnfolder]: 290/695 cut-off events. [2021-10-15 19:45:49,024 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:45:49,036 INFO L84 FinitePrefix]: Finished finitePrefix Result has 696 conditions, 695 events. 290/695 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2399 event pairs, 0 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-10-15 19:45:49,037 INFO L82 GeneralOperation]: Start removeDead. Operand has 406 places, 695 transitions, 1390 flow [2021-10-15 19:45:49,061 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 403 places, 691 transitions, 1382 flow [2021-10-15 19:45:49,066 INFO L129 PetriNetUnfolder]: 9/38 cut-off events. [2021-10-15 19:45:49,066 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:45:49,066 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:45:49,067 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:45:49,067 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:45:49,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:45:49,073 INFO L82 PathProgramCache]: Analyzing trace with hash 865922379, now seen corresponding path program 1 times [2021-10-15 19:45:49,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:45:49,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608994109] [2021-10-15 19:45:49,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:45:49,083 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:45:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:45:49,449 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 19:45:49,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:45:49,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608994109] [2021-10-15 19:45:49,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608994109] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:45:49,451 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:45:49,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-15 19:45:49,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334031670] [2021-10-15 19:45:49,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-15 19:45:49,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:45:49,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-15 19:45:49,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-15 19:45:49,488 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 523 out of 695 [2021-10-15 19:45:49,497 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 691 transitions, 1382 flow. Second operand has 2 states, 2 states have (on average 523.5) internal successors, (1047), 2 states have internal predecessors, (1047), 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 19:45:49,497 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:45:49,498 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 523 of 695 [2021-10-15 19:45:49,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:45:49,593 INFO L129 PetriNetUnfolder]: 118/520 cut-off events. [2021-10-15 19:45:49,593 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:45:49,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 520 events. 118/520 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2045 event pairs, 0 based on Foata normal form. 171/573 useless extension candidates. Maximal degree in co-relation 520. Up to 8 conditions per place. [2021-10-15 19:45:49,599 INFO L132 encePairwiseOnDemand]: 524/695 looper letters, 0 selfloop transitions, 0 changer transitions 0/520 dead transitions. [2021-10-15 19:45:49,600 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 520 transitions, 1040 flow [2021-10-15 19:45:49,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-15 19:45:49,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-15 19:45:49,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1217 transitions. [2021-10-15 19:45:49,629 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8755395683453238 [2021-10-15 19:45:49,629 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1217 transitions. [2021-10-15 19:45:49,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1217 transitions. [2021-10-15 19:45:49,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:45:49,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1217 transitions. [2021-10-15 19:45:49,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 608.5) internal successors, (1217), 2 states have internal predecessors, (1217), 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 19:45:49,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 695.0) internal successors, (2085), 3 states have internal predecessors, (2085), 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 19:45:49,663 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 695.0) internal successors, (2085), 3 states have internal predecessors, (2085), 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 19:45:49,665 INFO L186 Difference]: Start difference. First operand has 403 places, 691 transitions, 1382 flow. Second operand 2 states and 1217 transitions. [2021-10-15 19:45:49,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 520 transitions, 1040 flow [2021-10-15 19:45:49,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 520 transitions, 1040 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:45:49,697 INFO L242 Difference]: Finished difference. Result has 404 places, 520 transitions, 1040 flow [2021-10-15 19:45:49,700 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=695, PETRI_DIFFERENCE_MINUEND_FLOW=1040, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=520, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1040, PETRI_PLACES=404, PETRI_TRANSITIONS=520} [2021-10-15 19:45:49,701 INFO L334 CegarLoopForPetriNet]: 403 programPoint places, 1 predicate places. [2021-10-15 19:45:49,702 INFO L470 AbstractCegarLoop]: Abstraction has has 404 places, 520 transitions, 1040 flow [2021-10-15 19:45:49,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 523.5) internal successors, (1047), 2 states have internal predecessors, (1047), 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 19:45:49,703 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:45:49,704 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:45:49,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 19:45:49,705 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:45:49,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:45:49,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1469384818, now seen corresponding path program 1 times [2021-10-15 19:45:49,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:45:49,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350375535] [2021-10-15 19:45:49,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:45:49,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:45:49,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:45:49,968 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:45:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:45:50,201 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:45:50,201 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-15 19:45:50,203 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:45:50,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-15 19:45:50,211 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:45:50,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:45:50 BoogieIcfgContainer [2021-10-15 19:45:50,288 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:45:50,293 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:45:50,294 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:45:50,294 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:45:50,294 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:45:48" (3/4) ... [2021-10-15 19:45:50,298 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 19:45:50,298 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:45:50,300 INFO L168 Benchmark]: Toolchain (without parser) took 4457.16 ms. Allocated memory was 92.3 MB in the beginning and 184.5 MB in the end (delta: 92.3 MB). Free memory was 57.7 MB in the beginning and 135.6 MB in the end (delta: -77.9 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:45:50,301 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 92.3 MB. Free memory was 46.6 MB in the beginning and 46.6 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:45:50,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 697.99 ms. Allocated memory is still 92.3 MB. Free memory was 57.5 MB in the beginning and 49.7 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:45:50,306 INFO L168 Benchmark]: Boogie Procedure Inliner took 178.24 ms. Allocated memory is still 92.3 MB. Free memory was 49.7 MB in the beginning and 38.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:45:50,312 INFO L168 Benchmark]: Boogie Preprocessor took 180.71 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 38.9 MB in the beginning and 94.1 MB in the end (delta: -55.1 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2021-10-15 19:45:50,314 INFO L168 Benchmark]: RCFGBuilder took 1889.31 ms. Allocated memory is still 127.9 MB. Free memory was 93.4 MB in the beginning and 73.3 MB in the end (delta: 20.2 MB). Peak memory consumption was 46.0 MB. Max. memory is 16.1 GB. [2021-10-15 19:45:50,315 INFO L168 Benchmark]: TraceAbstraction took 1490.09 ms. Allocated memory was 127.9 MB in the beginning and 184.5 MB in the end (delta: 56.6 MB). Free memory was 72.5 MB in the beginning and 136.7 MB in the end (delta: -64.2 MB). Peak memory consumption was 55.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:45:50,318 INFO L168 Benchmark]: Witness Printer took 4.69 ms. Allocated memory is still 184.5 MB. Free memory was 136.7 MB in the beginning and 135.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:45:50,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 92.3 MB. Free memory was 46.6 MB in the beginning and 46.6 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 697.99 ms. Allocated memory is still 92.3 MB. Free memory was 57.5 MB in the beginning and 49.7 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 178.24 ms. Allocated memory is still 92.3 MB. Free memory was 49.7 MB in the beginning and 38.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 180.71 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 38.9 MB in the beginning and 94.1 MB in the end (delta: -55.1 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1889.31 ms. Allocated memory is still 127.9 MB. Free memory was 93.4 MB in the beginning and 73.3 MB in the end (delta: 20.2 MB). Peak memory consumption was 46.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1490.09 ms. Allocated memory was 127.9 MB in the beginning and 184.5 MB in the end (delta: 56.6 MB). Free memory was 72.5 MB in the beginning and 136.7 MB in the end (delta: -64.2 MB). Peak memory consumption was 55.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.69 ms. Allocated memory is still 184.5 MB. Free memory was 136.7 MB in the beginning and 135.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms 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: 631]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 72, overapproximation of someUnaryDOUBLEoperation at line 512, overapproximation of bitwiseAnd at line 606, overapproximation of someBinaryArithmeticFLOAToperation at line 611. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L94-L96] static const float two25_scalbn = 3.355443200e+07, twom25_scalbn = 2.9802322388e-08, huge_scalbn = 1.0e+30, tiny_scalbn = 1.0e-30; [L164] static const int init_jk_krempio[] = {4, 7, 9}; [L166-L170] static const float PIo2_krempio[] = { 1.5703125000e+00, 4.5776367188e-04, 2.5987625122e-05, 7.5437128544e-08, 6.0026650317e-11, 7.3896444519e-13, 5.3845816694e-15, 5.6378512969e-18, 8.3009228831e-20, 3.2756352257e-22, 6.3331015649e-25, }; [L172-L174] static const float zero_krempio = 0.0, one_krempio = 1.0, two8_krempio = 2.5600000000e+02, twon8_krempio = 3.9062500000e-03; [L349-L367] static const __int32_t two_over_pi_rempio[] = { 0xA2, 0xF9, 0x83, 0x6E, 0x4E, 0x44, 0x15, 0x29, 0xFC, 0x27, 0x57, 0xD1, 0xF5, 0x34, 0xDD, 0xC0, 0xDB, 0x62, 0x95, 0x99, 0x3C, 0x43, 0x90, 0x41, 0xFE, 0x51, 0x63, 0xAB, 0xDE, 0xBB, 0xC5, 0x61, 0xB7, 0x24, 0x6E, 0x3A, 0x42, 0x4D, 0xD2, 0xE0, 0x06, 0x49, 0x2E, 0xEA, 0x09, 0xD1, 0x92, 0x1C, 0xFE, 0x1D, 0xEB, 0x1C, 0xB1, 0x29, 0xA7, 0x3E, 0xE8, 0x82, 0x35, 0xF5, 0x2E, 0xBB, 0x44, 0x84, 0xE9, 0x9C, 0x70, 0x26, 0xB4, 0x5F, 0x7E, 0x41, 0x39, 0x91, 0xD6, 0x39, 0x83, 0x53, 0x39, 0xF4, 0x9C, 0x84, 0x5F, 0x8B, 0xBD, 0xF9, 0x28, 0x3B, 0x1F, 0xF8, 0x97, 0xFF, 0xDE, 0x05, 0x98, 0x0F, 0xEF, 0x2F, 0x11, 0x8B, 0x5A, 0x0A, 0x6D, 0x1F, 0x6D, 0x36, 0x7E, 0xCF, 0x27, 0xCB, 0x09, 0xB7, 0x4F, 0x46, 0x3F, 0x66, 0x9E, 0x5F, 0xEA, 0x2D, 0x75, 0x27, 0xBA, 0xC7, 0xEB, 0xE5, 0xF1, 0x7B, 0x3D, 0x07, 0x39, 0xF7, 0x8A, 0x52, 0x92, 0xEA, 0x6B, 0xFB, 0x5F, 0xB1, 0x1F, 0x8D, 0x5D, 0x08, 0x56, 0x03, 0x30, 0x46, 0xFC, 0x7B, 0x6B, 0xAB, 0xF0, 0xCF, 0xBC, 0x20, 0x9A, 0xF4, 0x36, 0x1D, 0xA9, 0xE3, 0x91, 0x61, 0x5E, 0xE6, 0x1B, 0x08, 0x65, 0x99, 0x85, 0x5F, 0x14, 0xA0, 0x68, 0x40, 0x8D, 0xFF, 0xD8, 0x80, 0x4D, 0x73, 0x27, 0x31, 0x06, 0x06, 0x15, 0x56, 0xCA, 0x73, 0xA8, 0xC9, 0x60, 0xE2, 0x7B, 0xC0, 0x8C, 0x6B, }; [L369-L375] static const __int32_t npio2_hw_rempio[] = { 0x3fc90f00, 0x40490f00, 0x4096cb00, 0x40c90f00, 0x40fb5300, 0x4116cb00, 0x412fed00, 0x41490f00, 0x41623100, 0x417b5300, 0x418a3a00, 0x4196cb00, 0x41a35c00, 0x41afed00, 0x41bc7e00, 0x41c90f00, 0x41d5a000, 0x41e23100, 0x41eec200, 0x41fb5300, 0x4203f200, 0x420a3a00, 0x42108300, 0x4216cb00, 0x421d1400, 0x42235c00, 0x4229a500, 0x422fed00, 0x42363600, 0x423c7e00, 0x4242c700, 0x42490f00}; [L377-L386] static const float zero_rempio = 0.0000000000e+00, half_rempio = 5.0000000000e-01, two8_rempio = 2.5600000000e+02, invpio2_rempio = 6.3661980629e-01, pio2_1_rempio = 1.5707855225e+00, pio2_1t_rempio = 1.0804334124e-05, pio2_2_rempio = 1.0804273188e-05, pio2_2t_rempio = 6.0770999344e-11, pio2_3_rempio = 6.0770943833e-11, pio2_3t_rempio = 6.1232342629e-17; [L506-L514] static const float one_ktan = 1.0000000000e+00, pio4_ktan = 7.8539812565e-01, pio4lo_ktan = 3.7748947079e-08, T_ktan[] = { 3.3333334327e-01, 1.3333334029e-01, 5.3968254477e-02, 2.1869488060e-02, 8.8632395491e-03, 3.5920790397e-03, 1.4562094584e-03, 5.8804126456e-04, 2.4646313977e-04, 7.8179444245e-05, 7.1407252108e-05, -1.8558637748e-05, 2.5907305826e-05, }; VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={22:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={23:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={19:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={14:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={18:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, zero_krempio=0, zero_rempio=0] [L626] float x = -1.0f / 0.0f; [L597] float y[2], z = 0.0; [L598] __int32_t n, ix; VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={22:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={23:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={19:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={14:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={18:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, zero_krempio=0, zero_rempio=0] [L601] ieee_float_shape_type gf_u; [L602] gf_u.value = (x) [L603] EXPR gf_u.word [L603] (ix) = gf_u.word [L606] ix &= 0x7fffffff VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={22:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={23:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={19:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={14:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={18:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, zero_krempio=0, zero_rempio=0] [L607] COND FALSE !(ix <= 0x3f490fda) VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={22:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={23:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={19:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={14:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={18:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, zero_krempio=0, zero_rempio=0] [L610] COND TRUE !((ix) < 0x7f800000L) [L611] return x - x; [L611] return x - x; VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={22:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={23:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={19:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={14:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={18:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, zero_krempio=0, zero_rempio=0] [L627] float res = tan_float(x); [L72] return x != x; VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={22:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={23:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={19:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={14:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={18:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, zero_krempio=0, zero_rempio=0] [L630] COND TRUE !isnan_float(res) [L631] reach_error() VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={22:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={23:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={19:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={14:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={18:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, zero_krempio=0, zero_rempio=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 406 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1354.3ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 225.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 188.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 0 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1382occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.6ms SsaConstructionTime, 356.1ms SatisfiabilityAnalysisTime, 154.5ms InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-15 19:45:50,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/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 19:45:52,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:45:52,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:45:52,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:45:52,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:45:52,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:45:52,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:45:52,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:45:52,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:45:52,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:45:52,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:45:52,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:45:52,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:45:52,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:45:52,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:45:52,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:45:52,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:45:52,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:45:52,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:45:53,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:45:53,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:45:53,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:45:53,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:45:53,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:45:53,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:45:53,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:45:53,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:45:53,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:45:53,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:45:53,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:45:53,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:45:53,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:45:53,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:45:53,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:45:53,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:45:53,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:45:53,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:45:53,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:45:53,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:45:53,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:45:53,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:45:53,045 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-15 19:45:53,087 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:45:53,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:45:53,088 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:45:53,088 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:45:53,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:45:53,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:45:53,091 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:45:53,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:45:53,091 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:45:53,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:45:53,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:45:53,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:45:53,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:45:53,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:45:53,094 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-15 19:45:53,094 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-15 19:45:53,094 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:45:53,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:45:53,094 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:45:53,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:45:53,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:45:53,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:45:53,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:45:53,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:45:53,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:45:53,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:45:53,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:45:53,097 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-15 19:45:53,097 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-15 19:45:53,097 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:45:53,097 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:45:53,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:45:53,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:45:53,098 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-15 19:45:53,098 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_7e981031-b7d1-4aec-b005-8f2f582537da/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bf6eafdbe8fda5da55032493563d6f73b18119b [2021-10-15 19:45:53,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:45:53,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:45:53,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:45:53,492 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:45:53,496 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:45:53,497 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/float-newlib/float_req_bl_0550b.c [2021-10-15 19:45:53,560 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/data/48e53d098/631cd59b16604f09a7700824d25773bb/FLAGbe703099f [2021-10-15 19:45:54,208 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:45:54,208 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/sv-benchmarks/c/float-newlib/float_req_bl_0550b.c [2021-10-15 19:45:54,229 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/data/48e53d098/631cd59b16604f09a7700824d25773bb/FLAGbe703099f [2021-10-15 19:45:54,587 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/data/48e53d098/631cd59b16604f09a7700824d25773bb [2021-10-15 19:45:54,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:45:54,591 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:45:54,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:45:54,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:45:54,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:45:54,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:45:54" (1/1) ... [2021-10-15 19:45:54,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7358ae8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:54, skipping insertion in model container [2021-10-15 19:45:54,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:45:54" (1/1) ... [2021-10-15 19:45:54,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:45:54,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:45:55,014 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_7e981031-b7d1-4aec-b005-8f2f582537da/sv-benchmarks/c/float-newlib/float_req_bl_0550b.c[15673,15686] [2021-10-15 19:45:55,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:45:55,059 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:45:55,225 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_7e981031-b7d1-4aec-b005-8f2f582537da/sv-benchmarks/c/float-newlib/float_req_bl_0550b.c[15673,15686] [2021-10-15 19:45:55,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:45:55,308 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:45:55,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:55 WrapperNode [2021-10-15 19:45:55,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:45:55,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:45:55,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:45:55,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:45:55,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:55" (1/1) ... [2021-10-15 19:45:55,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:55" (1/1) ... [2021-10-15 19:45:55,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:45:55,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:45:55,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:45:55,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:45:55,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:55" (1/1) ... [2021-10-15 19:45:55,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:55" (1/1) ... [2021-10-15 19:45:55,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:55" (1/1) ... [2021-10-15 19:45:55,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:55" (1/1) ... [2021-10-15 19:45:55,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:55" (1/1) ... [2021-10-15 19:45:55,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:55" (1/1) ... [2021-10-15 19:45:55,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:55" (1/1) ... [2021-10-15 19:45:55,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:45:55,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:45:55,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:45:55,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:45:55,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:55" (1/1) ... [2021-10-15 19:45:55,709 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:45:55,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:45:55,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:45:55,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:45:55,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-15 19:45:55,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-10-15 19:45:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:45:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-15 19:45:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-15 19:45:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-15 19:45:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-10-15 19:45:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:45:55,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:45:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-15 19:45:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 19:46:43,809 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:46:43,809 INFO L299 CfgBuilder]: Removed 227 assume(true) statements. [2021-10-15 19:46:43,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:46:43 BoogieIcfgContainer [2021-10-15 19:46:43,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:46:43,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:46:43,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:46:43,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:46:43,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:45:54" (1/3) ... [2021-10-15 19:46:43,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2f79df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:46:43, skipping insertion in model container [2021-10-15 19:46:43,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:45:55" (2/3) ... [2021-10-15 19:46:43,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2f79df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:46:43, skipping insertion in model container [2021-10-15 19:46:43,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:46:43" (3/3) ... [2021-10-15 19:46:43,825 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0550b.c [2021-10-15 19:46:43,834 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:46:43,834 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-15 19:46:43,895 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:46:43,904 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 19:46:43,905 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-15 19:46:43,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 406 places, 695 transitions, 1390 flow [2021-10-15 19:46:44,133 INFO L129 PetriNetUnfolder]: 290/695 cut-off events. [2021-10-15 19:46:44,133 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:46:44,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 696 conditions, 695 events. 290/695 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2399 event pairs, 0 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-10-15 19:46:44,140 INFO L82 GeneralOperation]: Start removeDead. Operand has 406 places, 695 transitions, 1390 flow [2021-10-15 19:46:44,162 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 403 places, 691 transitions, 1382 flow [2021-10-15 19:46:44,166 INFO L129 PetriNetUnfolder]: 9/38 cut-off events. [2021-10-15 19:46:44,166 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:46:44,167 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:46:44,167 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:46:44,168 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:46:44,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:46:44,176 INFO L82 PathProgramCache]: Analyzing trace with hash 865922379, now seen corresponding path program 1 times [2021-10-15 19:46:44,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-15 19:46:44,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734893863] [2021-10-15 19:46:44,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:46:44,193 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-15 19:46:44,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/mathsat [2021-10-15 19:46:44,196 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-15 19:46:44,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-15 19:46:44,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:46:44,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 [2021-10-15 19:46:44,593 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 19:46:44,601 INFO L168 Benchmark]: Toolchain (without parser) took 50009.00 ms. Allocated memory was 52.4 MB in the beginning and 86.0 MB in the end (delta: 33.6 MB). Free memory was 35.2 MB in the beginning and 51.0 MB in the end (delta: -15.8 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:46:44,602 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 52.4 MB. Free memory was 32.4 MB in the beginning and 32.4 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:46:44,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 717.98 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 34.9 MB in the beginning and 37.7 MB in the end (delta: -2.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2021-10-15 19:46:44,605 INFO L168 Benchmark]: Boogie Procedure Inliner took 169.36 ms. Allocated memory is still 62.9 MB. Free memory was 37.7 MB in the beginning and 27.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:46:44,606 INFO L168 Benchmark]: Boogie Preprocessor took 215.66 ms. Allocated memory is still 62.9 MB. Free memory was 27.1 MB in the beginning and 30.5 MB in the end (delta: -3.5 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2021-10-15 19:46:44,612 INFO L168 Benchmark]: RCFGBuilder took 48113.80 ms. Allocated memory was 62.9 MB in the beginning and 86.0 MB in the end (delta: 23.1 MB). Free memory was 30.5 MB in the beginning and 40.7 MB in the end (delta: -10.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. [2021-10-15 19:46:44,613 INFO L168 Benchmark]: TraceAbstraction took 783.12 ms. Allocated memory is still 86.0 MB. Free memory was 40.3 MB in the beginning and 51.0 MB in the end (delta: -10.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:46:44,619 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 52.4 MB. Free memory was 32.4 MB in the beginning and 32.4 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 717.98 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 34.9 MB in the beginning and 37.7 MB in the end (delta: -2.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 169.36 ms. Allocated memory is still 62.9 MB. Free memory was 37.7 MB in the beginning and 27.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 215.66 ms. Allocated memory is still 62.9 MB. Free memory was 27.1 MB in the beginning and 30.5 MB in the end (delta: -3.5 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 48113.80 ms. Allocated memory was 62.9 MB in the beginning and 86.0 MB in the end (delta: 23.1 MB). Free memory was 30.5 MB in the beginning and 40.7 MB in the end (delta: -10.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 783.12 ms. Allocated memory is still 86.0 MB. Free memory was 40.3 MB in the beginning and 51.0 MB in the end (delta: -10.7 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 19:46:44,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e981031-b7d1-4aec-b005-8f2f582537da/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...