./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b1ef2080ffd97f82ac51854e7d9813eba864fd0a .................................................................................................................................................................................................................................................................................................................... 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_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b1ef2080ffd97f82ac51854e7d9813eba864fd0a ................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:11:31,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:11:31,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:11:31,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:11:31,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:11:31,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:11:31,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:11:31,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:11:31,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:11:31,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:11:31,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:11:31,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:11:31,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:11:31,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:11:31,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:11:31,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:11:31,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:11:31,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:11:31,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:11:31,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:11:31,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:11:31,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:11:31,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:11:31,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:11:31,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:11:31,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:11:31,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:11:31,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:11:31,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:11:31,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:11:31,703 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:11:31,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:11:31,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:11:31,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:11:31,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:11:31,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:11:31,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:11:31,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:11:31,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:11:31,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:11:31,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:11:31,712 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:11:31,743 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:11:31,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:11:31,744 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:11:31,744 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:11:31,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:11:31,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:11:31,746 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:11:31,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:11:31,747 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:11:31,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:11:31,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:11:31,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:11:31,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:11:31,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:11:31,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:11:31,750 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:11:31,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:11:31,751 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:11:31,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:11:31,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:11:31,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:11:31,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:11:31,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:11:31,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:11:31,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:11:31,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:11:31,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:11:31,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:11:31,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:11:31,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:11:31,756 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_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1ef2080ffd97f82ac51854e7d9813eba864fd0a [2021-10-13 00:11:32,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:11:32,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:11:32,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:11:32,051 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:11:32,051 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:11:32,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2021-10-13 00:11:32,142 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/data/f80f15808/a95eb923606a40748c6d1cddc18e7e6b/FLAG901391742 [2021-10-13 00:11:32,591 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:11:32,592 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2021-10-13 00:11:32,599 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/data/f80f15808/a95eb923606a40748c6d1cddc18e7e6b/FLAG901391742 [2021-10-13 00:11:32,964 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/data/f80f15808/a95eb923606a40748c6d1cddc18e7e6b [2021-10-13 00:11:32,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:11:32,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:11:32,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:11:32,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:11:32,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:11:32,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:11:32" (1/1) ... [2021-10-13 00:11:32,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30f9dcda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:32, skipping insertion in model container [2021-10-13 00:11:32,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:11:32" (1/1) ... [2021-10-13 00:11:32,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:11:33,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:11:33,230 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_06bd4014-f44f-4cc0-98a8-5998a26815be/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c[3883,3896] [2021-10-13 00:11:33,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:11:33,239 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:11:33,282 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_06bd4014-f44f-4cc0-98a8-5998a26815be/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c[3883,3896] [2021-10-13 00:11:33,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:11:33,296 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:11:33,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:33 WrapperNode [2021-10-13 00:11:33,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:11:33,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:11:33,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:11:33,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:11:33,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:33" (1/1) ... [2021-10-13 00:11:33,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:33" (1/1) ... [2021-10-13 00:11:33,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:11:33,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:11:33,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:11:33,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:11:33,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:33" (1/1) ... [2021-10-13 00:11:33,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:33" (1/1) ... [2021-10-13 00:11:33,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:33" (1/1) ... [2021-10-13 00:11:33,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:33" (1/1) ... [2021-10-13 00:11:33,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:33" (1/1) ... [2021-10-13 00:11:33,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:33" (1/1) ... [2021-10-13 00:11:33,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:33" (1/1) ... [2021-10-13 00:11:33,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:11:33,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:11:33,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:11:33,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:11:33,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:33" (1/1) ... [2021-10-13 00:11:33,404 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:11:33,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:11:33,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:11:33,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:11:33,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:11:33,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:11:33,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:11:33,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-13 00:11:33,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-13 00:11:33,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:11:33,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:11:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:11:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-13 00:11:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:11:33,866 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:11:33,866 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-13 00:11:33,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:11:33 BoogieIcfgContainer [2021-10-13 00:11:33,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:11:33,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:11:33,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:11:33,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:11:33,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:11:32" (1/3) ... [2021-10-13 00:11:33,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c7a816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:11:33, skipping insertion in model container [2021-10-13 00:11:33,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:33" (2/3) ... [2021-10-13 00:11:33,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c7a816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:11:33, skipping insertion in model container [2021-10-13 00:11:33,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:11:33" (3/3) ... [2021-10-13 00:11:33,902 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121a.c [2021-10-13 00:11:33,907 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:11:33,907 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:11:33,981 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:11:33,988 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:11:33,988 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:11:34,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:11:34,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 00:11:34,008 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:11:34,008 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:11:34,009 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:11:34,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:11:34,014 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2021-10-13 00:11:34,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:11:34,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380338003] [2021-10-13 00:11:34,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:11:34,025 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:11:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:11:34,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:11:34,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:11:34,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380338003] [2021-10-13 00:11:34,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380338003] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:11:34,202 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:11:34,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:11:34,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359552534] [2021-10-13 00:11:34,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 00:11:34,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:11:34,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 00:11:34,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:11:34,224 INFO L87 Difference]: Start difference. First operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:11:34,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:11:34,244 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2021-10-13 00:11:34,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:11:34,246 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-13 00:11:34,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:11:34,255 INFO L225 Difference]: With dead ends: 108 [2021-10-13 00:11:34,255 INFO L226 Difference]: Without dead ends: 52 [2021-10-13 00:11:34,258 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:11:34,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-13 00:11:34,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-13 00:11:34,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 51 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:11:34,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2021-10-13 00:11:34,292 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2021-10-13 00:11:34,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:11:34,293 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2021-10-13 00:11:34,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:11:34,293 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2021-10-13 00:11:34,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 00:11:34,294 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:11:34,295 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:11:34,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:11:34,295 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:11:34,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:11:34,296 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2021-10-13 00:11:34,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:11:34,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152496694] [2021-10-13 00:11:34,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:11:34,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:11:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:11:34,371 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:11:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:11:34,482 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:11:34,489 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:11:34,491 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:11:34,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:11:34,499 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:11:34,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:11:34 BoogieIcfgContainer [2021-10-13 00:11:34,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:11:34,535 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:11:34,536 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:11:34,536 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:11:34,536 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:11:33" (3/4) ... [2021-10-13 00:11:34,540 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:11:34,540 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:11:34,541 INFO L168 Benchmark]: Toolchain (without parser) took 1573.06 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 48.6 MB in the beginning and 68.3 MB in the end (delta: -19.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:11:34,542 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory is still 65.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:11:34,543 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.73 ms. Allocated memory is still 92.3 MB. Free memory was 48.4 MB in the beginning and 64.2 MB in the end (delta: -15.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:11:34,543 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.60 ms. Allocated memory is still 92.3 MB. Free memory was 64.2 MB in the beginning and 61.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:11:34,544 INFO L168 Benchmark]: Boogie Preprocessor took 37.93 ms. Allocated memory is still 92.3 MB. Free memory was 61.8 MB in the beginning and 59.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:11:34,545 INFO L168 Benchmark]: RCFGBuilder took 479.97 ms. Allocated memory is still 92.3 MB. Free memory was 59.5 MB in the beginning and 42.0 MB in the end (delta: 17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:11:34,546 INFO L168 Benchmark]: TraceAbstraction took 665.12 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 41.4 MB in the beginning and 69.0 MB in the end (delta: -27.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:11:34,546 INFO L168 Benchmark]: Witness Printer took 4.44 ms. Allocated memory is still 111.1 MB. Free memory was 69.0 MB in the beginning and 68.3 MB in the end (delta: 678.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:11:34,550 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory is still 65.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 328.73 ms. Allocated memory is still 92.3 MB. Free memory was 48.4 MB in the beginning and 64.2 MB in the end (delta: -15.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.60 ms. Allocated memory is still 92.3 MB. Free memory was 64.2 MB in the beginning and 61.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.93 ms. Allocated memory is still 92.3 MB. Free memory was 61.8 MB in the beginning and 59.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 479.97 ms. Allocated memory is still 92.3 MB. Free memory was 59.5 MB in the beginning and 42.0 MB in the end (delta: 17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 665.12 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 41.4 MB in the beginning and 69.0 MB in the end (delta: -27.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.44 ms. Allocated memory is still 111.1 MB. Free memory was 69.0 MB in the beginning and 68.3 MB in the end (delta: 678.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms 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: 177]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={6:0}] [L171] double x = __VERIFIER_nondet_double(); [L172] double y = 0.0; [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={6:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={6:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={6:0}] [L173] double res = fmod_double(x, y); [L18] return x != x; VAL [one_fmod=1, Zero_fmod={6:0}] [L176] COND TRUE !isnan_double(res) [L177] reach_error() VAL [one_fmod=1, Zero_fmod={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 517.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.6ms, AutomataDifference: 49.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 81 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=55occurred 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: 20.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.7ms SsaConstructionTime, 118.0ms SatisfiabilityAnalysisTime, 45.5ms InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-13 00:11:34,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:11:36,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:11:36,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:11:36,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:11:36,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:11:36,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:11:36,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:11:36,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:11:36,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:11:36,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:11:36,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:11:36,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:11:36,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:11:36,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:11:36,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:11:36,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:11:36,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:11:36,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:11:36,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:11:36,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:11:37,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:11:37,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:11:37,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:11:37,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:11:37,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:11:37,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:11:37,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:11:37,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:11:37,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:11:37,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:11:37,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:11:37,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:11:37,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:11:37,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:11:37,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:11:37,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:11:37,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:11:37,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:11:37,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:11:37,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:11:37,015 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:11:37,019 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-13 00:11:37,064 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:11:37,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:11:37,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:11:37,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:11:37,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:11:37,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:11:37,067 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:11:37,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:11:37,068 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:11:37,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:11:37,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:11:37,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:11:37,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:11:37,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:11:37,069 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 00:11:37,070 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 00:11:37,070 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:11:37,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:11:37,070 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:11:37,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:11:37,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:11:37,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:11:37,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:11:37,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:11:37,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:11:37,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:11:37,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:11:37,071 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 00:11:37,071 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 00:11:37,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:11:37,072 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:11:37,072 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 00:11:37,072 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_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1ef2080ffd97f82ac51854e7d9813eba864fd0a [2021-10-13 00:11:37,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:11:37,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:11:37,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:11:37,424 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:11:37,425 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:11:37,426 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2021-10-13 00:11:37,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/data/c9c8ce28a/c19f7df0670e4cf0a443814d39674963/FLAG187478e61 [2021-10-13 00:11:38,079 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:11:38,082 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2021-10-13 00:11:38,092 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/data/c9c8ce28a/c19f7df0670e4cf0a443814d39674963/FLAG187478e61 [2021-10-13 00:11:38,412 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/data/c9c8ce28a/c19f7df0670e4cf0a443814d39674963 [2021-10-13 00:11:38,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:11:38,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:11:38,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:11:38,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:11:38,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:11:38,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:11:38" (1/1) ... [2021-10-13 00:11:38,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651249d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:38, skipping insertion in model container [2021-10-13 00:11:38,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:11:38" (1/1) ... [2021-10-13 00:11:38,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:11:38,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:11:38,705 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_06bd4014-f44f-4cc0-98a8-5998a26815be/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c[3883,3896] [2021-10-13 00:11:38,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:11:38,722 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:11:38,764 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_06bd4014-f44f-4cc0-98a8-5998a26815be/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c[3883,3896] [2021-10-13 00:11:38,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:11:38,783 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:11:38,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:38 WrapperNode [2021-10-13 00:11:38,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:11:38,784 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:11:38,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:11:38,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:11:38,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:38" (1/1) ... [2021-10-13 00:11:38,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:38" (1/1) ... [2021-10-13 00:11:38,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:11:38,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:11:38,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:11:38,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:11:38,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:38" (1/1) ... [2021-10-13 00:11:38,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:38" (1/1) ... [2021-10-13 00:11:38,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:38" (1/1) ... [2021-10-13 00:11:38,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:38" (1/1) ... [2021-10-13 00:11:38,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:38" (1/1) ... [2021-10-13 00:11:38,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:38" (1/1) ... [2021-10-13 00:11:38,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:38" (1/1) ... [2021-10-13 00:11:38,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:11:38,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:11:38,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:11:38,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:11:38,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:38" (1/1) ... [2021-10-13 00:11:38,884 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:11:38,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:11:38,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:11:38,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:11:38,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-13 00:11:38,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-13 00:11:38,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 00:11:38,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:11:38,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-13 00:11:38,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 00:11:38,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:11:38,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:11:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 00:11:38,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:11:44,320 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:11:44,321 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-13 00:11:44,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:11:44 BoogieIcfgContainer [2021-10-13 00:11:44,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:11:44,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:11:44,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:11:44,328 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:11:44,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:11:38" (1/3) ... [2021-10-13 00:11:44,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ffb8186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:11:44, skipping insertion in model container [2021-10-13 00:11:44,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:11:38" (2/3) ... [2021-10-13 00:11:44,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ffb8186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:11:44, skipping insertion in model container [2021-10-13 00:11:44,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:11:44" (3/3) ... [2021-10-13 00:11:44,331 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121a.c [2021-10-13 00:11:44,336 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:11:44,336 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:11:44,396 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:11:44,402 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:11:44,402 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:11:44,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:11:44,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 00:11:44,429 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:11:44,430 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:11:44,431 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:11:44,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:11:44,441 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2021-10-13 00:11:44,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:11:44,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1557806319] [2021-10-13 00:11:44,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:11:44,458 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:11:44,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:11:44,465 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:11:44,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 00:11:44,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:11:44,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:11:44,732 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:577) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertConjunctsOfCodeBlocks.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertConjuncts(AnnotateAndAssertConjunctsOfCodeBlocks.java:135) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertNonCall(AnnotateAndAssertConjunctsOfCodeBlocks.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:101) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:312) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:211) ... 31 more [2021-10-13 00:11:44,737 INFO L168 Benchmark]: Toolchain (without parser) took 6312.89 ms. Allocated memory is still 81.8 MB. Free memory was 64.9 MB in the beginning and 55.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:11:44,737 INFO L168 Benchmark]: CDTParser took 0.67 ms. Allocated memory is still 81.8 MB. Free memory is still 61.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:11:44,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.54 ms. Allocated memory is still 81.8 MB. Free memory was 64.8 MB in the beginning and 59.6 MB in the end (delta: 5.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:11:44,738 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.45 ms. Allocated memory is still 81.8 MB. Free memory was 59.5 MB in the beginning and 57.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:11:44,739 INFO L168 Benchmark]: Boogie Preprocessor took 42.95 ms. Allocated memory is still 81.8 MB. Free memory was 57.2 MB in the beginning and 55.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:11:44,740 INFO L168 Benchmark]: RCFGBuilder took 5446.82 ms. Allocated memory is still 81.8 MB. Free memory was 55.1 MB in the beginning and 36.5 MB in the end (delta: 18.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:11:44,740 INFO L168 Benchmark]: TraceAbstraction took 409.55 ms. Allocated memory is still 81.8 MB. Free memory was 36.0 MB in the beginning and 55.1 MB in the end (delta: -19.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:11:44,743 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67 ms. Allocated memory is still 81.8 MB. Free memory is still 61.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 357.54 ms. Allocated memory is still 81.8 MB. Free memory was 64.8 MB in the beginning and 59.6 MB in the end (delta: 5.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.45 ms. Allocated memory is still 81.8 MB. Free memory was 59.5 MB in the beginning and 57.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.95 ms. Allocated memory is still 81.8 MB. Free memory was 57.2 MB in the beginning and 55.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5446.82 ms. Allocated memory is still 81.8 MB. Free memory was 55.1 MB in the beginning and 36.5 MB in the end (delta: 18.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 409.55 ms. Allocated memory is still 81.8 MB. Free memory was 36.0 MB in the beginning and 55.1 MB in the end (delta: -19.1 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. [2021-10-13 00:11:44,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06bd4014-f44f-4cc0-98a8-5998a26815be/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...