./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL --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 04c436006742f36e09d723f85653028f787f4ee63bf5ff6f9895b53f3ce3aea9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:32:07,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:32:07,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:32:07,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:32:07,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:32:07,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:32:07,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:32:07,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:32:07,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:32:07,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:32:07,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:32:07,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:32:07,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:32:07,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:32:07,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:32:07,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:32:07,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:32:07,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:32:07,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:32:07,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:32:07,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:32:07,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:32:07,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:32:07,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:32:07,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:32:07,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:32:07,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:32:07,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:32:07,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:32:07,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:32:07,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:32:07,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:32:07,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:32:07,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:32:07,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:32:07,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:32:07,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:32:07,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:32:07,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:32:07,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:32:07,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:32:07,876 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 05:32:07,903 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:32:07,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:32:07,904 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:32:07,904 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:32:07,905 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:32:07,905 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:32:07,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:32:07,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:32:07,906 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:32:07,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:32:07,907 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:32:07,907 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:32:07,907 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:32:07,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:32:07,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 05:32:07,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:32:07,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 05:32:07,908 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:32:07,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:32:07,909 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:32:07,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 05:32:07,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:32:07,909 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:32:07,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:32:07,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:32:07,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:32:07,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:32:07,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 05:32:07,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:32:07,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 05:32:07,911 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 05:32:07,911 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 05:32:07,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 05:32:07,912 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:32:07,912 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_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04c436006742f36e09d723f85653028f787f4ee63bf5ff6f9895b53f3ce3aea9 [2021-11-19 05:32:08,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:32:08,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:32:08,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:32:08,230 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:32:08,231 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:32:08,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c [2021-11-19 05:32:08,308 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/data/82a3dfe1b/ae3904a9dac64325bd419df56ed1505f/FLAG08ccf7782 [2021-11-19 05:32:08,833 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:32:08,834 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c [2021-11-19 05:32:08,850 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/data/82a3dfe1b/ae3904a9dac64325bd419df56ed1505f/FLAG08ccf7782 [2021-11-19 05:32:09,164 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/data/82a3dfe1b/ae3904a9dac64325bd419df56ed1505f [2021-11-19 05:32:09,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:32:09,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:32:09,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:32:09,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:32:09,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:32:09,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:32:09" (1/1) ... [2021-11-19 05:32:09,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e9d93a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:09, skipping insertion in model container [2021-11-19 05:32:09,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:32:09" (1/1) ... [2021-11-19 05:32:09,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:32:09,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:32:09,434 WARN L230 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_780f7f45-af59-4330-b56e-d0ae1d58616f/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c[1571,1584] [2021-11-19 05:32:09,438 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:32:09,453 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:32:09,490 WARN L230 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_780f7f45-af59-4330-b56e-d0ae1d58616f/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c[1571,1584] [2021-11-19 05:32:09,491 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:32:09,510 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:32:09,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:09 WrapperNode [2021-11-19 05:32:09,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:32:09,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:32:09,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:32:09,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:32:09,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:09" (1/1) ... [2021-11-19 05:32:09,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:09" (1/1) ... [2021-11-19 05:32:09,559 INFO L137 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 90 [2021-11-19 05:32:09,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:32:09,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:32:09,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:32:09,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:32:09,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:09" (1/1) ... [2021-11-19 05:32:09,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:09" (1/1) ... [2021-11-19 05:32:09,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:09" (1/1) ... [2021-11-19 05:32:09,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:09" (1/1) ... [2021-11-19 05:32:09,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:09" (1/1) ... [2021-11-19 05:32:09,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:09" (1/1) ... [2021-11-19 05:32:09,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:09" (1/1) ... [2021-11-19 05:32:09,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:32:09,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:32:09,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:32:09,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:32:09,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:09" (1/1) ... [2021-11-19 05:32:09,609 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:32:09,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:32:09,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:32:09,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:32:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 05:32:09,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 05:32:09,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 05:32:09,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-19 05:32:09,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 05:32:09,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-19 05:32:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:32:09,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:32:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 05:32:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 05:32:09,756 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:32:09,758 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:32:09,928 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:32:09,936 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:32:09,936 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-19 05:32:09,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:32:09 BoogieIcfgContainer [2021-11-19 05:32:09,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:32:09,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:32:09,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:32:09,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:32:09,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:32:09" (1/3) ... [2021-11-19 05:32:09,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e29af6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:32:09, skipping insertion in model container [2021-11-19 05:32:09,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:09" (2/3) ... [2021-11-19 05:32:09,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e29af6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:32:09, skipping insertion in model container [2021-11-19 05:32:09,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:32:09" (3/3) ... [2021-11-19 05:32:09,950 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072c.c [2021-11-19 05:32:09,956 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:32:09,957 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 05:32:10,011 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:32:10,020 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 05:32:10,020 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 05:32:10,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:32:10,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-19 05:32:10,044 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:32:10,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:32:10,045 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:32:10,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:32:10,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1945115165, now seen corresponding path program 1 times [2021-11-19 05:32:10,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:32:10,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949772989] [2021-11-19 05:32:10,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:32:10,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:32:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:32:10,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:32:10,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:32:10,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949772989] [2021-11-19 05:32:10,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949772989] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:32:10,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:32:10,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 05:32:10,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007591869] [2021-11-19 05:32:10,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:32:10,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 05:32:10,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:32:10,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 05:32:10,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 05:32:10,290 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 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) [2021-11-19 05:32:10,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:32:10,311 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2021-11-19 05:32:10,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:32:10,313 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 [2021-11-19 05:32:10,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:32:10,323 INFO L225 Difference]: With dead ends: 48 [2021-11-19 05:32:10,323 INFO L226 Difference]: Without dead ends: 22 [2021-11-19 05:32:10,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 05:32:10,333 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:32:10,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:32:10,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-19 05:32:10,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-19 05:32:10,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:32:10,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-11-19 05:32:10,397 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 10 [2021-11-19 05:32:10,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:32:10,398 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-11-19 05:32:10,399 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) [2021-11-19 05:32:10,399 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-11-19 05:32:10,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 05:32:10,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:32:10,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:32:10,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 05:32:10,404 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:32:10,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:32:10,412 INFO L85 PathProgramCache]: Analyzing trace with hash -390192032, now seen corresponding path program 1 times [2021-11-19 05:32:10,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:32:10,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803898924] [2021-11-19 05:32:10,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:32:10,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:32:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:32:10,528 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:32:10,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:32:10,636 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:32:10,636 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 05:32:10,639 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 05:32:10,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 05:32:10,652 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-19 05:32:10,666 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 05:32:10,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:32:10 BoogieIcfgContainer [2021-11-19 05:32:10,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 05:32:10,719 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:32:10,720 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:32:10,720 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:32:10,721 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:32:09" (3/4) ... [2021-11-19 05:32:10,725 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 05:32:10,726 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:32:10,728 INFO L158 Benchmark]: Toolchain (without parser) took 1559.48ms. Allocated memory is still 111.1MB. Free memory was 71.7MB in the beginning and 45.8MB in the end (delta: 25.9MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2021-11-19 05:32:10,728 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:32:10,730 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.05ms. Allocated memory is still 111.1MB. Free memory was 71.4MB in the beginning and 85.3MB in the end (delta: -13.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 05:32:10,733 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.52ms. Allocated memory is still 111.1MB. Free memory was 85.3MB in the beginning and 83.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:32:10,735 INFO L158 Benchmark]: Boogie Preprocessor took 38.05ms. Allocated memory is still 111.1MB. Free memory was 83.6MB in the beginning and 82.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:32:10,738 INFO L158 Benchmark]: RCFGBuilder took 340.16ms. Allocated memory is still 111.1MB. Free memory was 82.2MB in the beginning and 70.6MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 05:32:10,739 INFO L158 Benchmark]: TraceAbstraction took 777.50ms. Allocated memory is still 111.1MB. Free memory was 70.0MB in the beginning and 45.9MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-19 05:32:10,740 INFO L158 Benchmark]: Witness Printer took 6.51ms. Allocated memory is still 111.1MB. Free memory was 45.9MB in the beginning and 45.8MB in the end (delta: 126.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:32:10,748 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.05ms. Allocated memory is still 111.1MB. Free memory was 71.4MB in the beginning and 85.3MB in the end (delta: -13.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.52ms. Allocated memory is still 111.1MB. Free memory was 85.3MB in the beginning and 83.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.05ms. Allocated memory is still 111.1MB. Free memory was 83.6MB in the beginning and 82.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 340.16ms. Allocated memory is still 111.1MB. Free memory was 82.2MB in the beginning and 70.6MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 777.50ms. Allocated memory is still 111.1MB. Free memory was 70.0MB in the beginning and 45.9MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 6.51ms. Allocated memory is still 111.1MB. Free memory was 45.9MB in the beginning and 45.8MB in the end (delta: 126.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 69]: 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 68, overapproximation of bitwiseAnd at line 21, overapproximation of someBinaryArithmeticFLOAToperation at line 40. Possible FailurePath: [L64] float x = 0.0f; [L65] CALL, EXPR trunc_float(x) [L15] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=0, x=0] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L21] signbit = w & 0x80000000 [L22] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=0, exponent_less_127=255, signbit=6, w=0, x=0] [L23] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=0, exponent_less_127=255, signbit=6, w=0, x=0] [L39] COND TRUE exponent_less_127 == 255 [L40] return x + x; VAL [\old(x)=0, exponent_less_127=255, signbit=6, w=0, x=0] [L65] RET, EXPR trunc_float(x) [L65] float res = trunc_float(x); [L68] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=4294967296, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L68] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L69] reach_error() VAL [res=4294967296, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 28 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s 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 [2021-11-19 05:32:10,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL --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 04c436006742f36e09d723f85653028f787f4ee63bf5ff6f9895b53f3ce3aea9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:32:13,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:32:13,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:32:13,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:32:13,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:32:13,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:32:13,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:32:13,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:32:13,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:32:13,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:32:13,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:32:13,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:32:13,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:32:13,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:32:13,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:32:13,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:32:13,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:32:13,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:32:13,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:32:13,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:32:13,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:32:13,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:32:13,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:32:13,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:32:13,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:32:13,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:32:13,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:32:13,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:32:13,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:32:13,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:32:13,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:32:13,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:32:13,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:32:13,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:32:13,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:32:13,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:32:13,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:32:13,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:32:13,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:32:13,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:32:13,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:32:13,631 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-19 05:32:13,677 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:32:13,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:32:13,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:32:13,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:32:13,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:32:13,679 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:32:13,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:32:13,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:32:13,680 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:32:13,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:32:13,681 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:32:13,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:32:13,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:32:13,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 05:32:13,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:32:13,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 05:32:13,682 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 05:32:13,682 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 05:32:13,683 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:32:13,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:32:13,683 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:32:13,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 05:32:13,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:32:13,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:32:13,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:32:13,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:32:13,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:32:13,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:32:13,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 05:32:13,685 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-19 05:32:13,685 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 05:32:13,685 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 05:32:13,686 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 05:32:13,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 05:32:13,686 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:32:13,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 05:32:13,687 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_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04c436006742f36e09d723f85653028f787f4ee63bf5ff6f9895b53f3ce3aea9 [2021-11-19 05:32:14,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:32:14,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:32:14,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:32:14,129 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:32:14,130 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:32:14,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/float-newlib/float_req_bl_1072c.c [2021-11-19 05:32:14,209 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/data/9b04d7162/b6bbd2b926514a3ba54bb982571f0ba9/FLAG00f0d1d11 [2021-11-19 05:32:14,690 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:32:14,691 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c [2021-11-19 05:32:14,700 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/data/9b04d7162/b6bbd2b926514a3ba54bb982571f0ba9/FLAG00f0d1d11 [2021-11-19 05:32:15,068 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/data/9b04d7162/b6bbd2b926514a3ba54bb982571f0ba9 [2021-11-19 05:32:15,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:32:15,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:32:15,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:32:15,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:32:15,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:32:15,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:32:15" (1/1) ... [2021-11-19 05:32:15,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ca5f128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:15, skipping insertion in model container [2021-11-19 05:32:15,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:32:15" (1/1) ... [2021-11-19 05:32:15,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:32:15,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:32:15,369 WARN L230 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_780f7f45-af59-4330-b56e-d0ae1d58616f/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c[1571,1584] [2021-11-19 05:32:15,376 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:32:15,402 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:32:15,456 WARN L230 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_780f7f45-af59-4330-b56e-d0ae1d58616f/sv-benchmarks/c/float-newlib/float_req_bl_1072c.c[1571,1584] [2021-11-19 05:32:15,459 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:32:15,508 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:32:15,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:15 WrapperNode [2021-11-19 05:32:15,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:32:15,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:32:15,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:32:15,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:32:15,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:15" (1/1) ... [2021-11-19 05:32:15,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:15" (1/1) ... [2021-11-19 05:32:15,582 INFO L137 Inliner]: procedures = 19, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 90 [2021-11-19 05:32:15,583 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:32:15,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:32:15,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:32:15,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:32:15,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:15" (1/1) ... [2021-11-19 05:32:15,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:15" (1/1) ... [2021-11-19 05:32:15,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:15" (1/1) ... [2021-11-19 05:32:15,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:15" (1/1) ... [2021-11-19 05:32:15,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:15" (1/1) ... [2021-11-19 05:32:15,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:15" (1/1) ... [2021-11-19 05:32:15,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:15" (1/1) ... [2021-11-19 05:32:15,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:32:15,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:32:15,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:32:15,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:32:15,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:15" (1/1) ... [2021-11-19 05:32:15,642 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:32:15,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:32:15,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:32:15,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:32:15,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 05:32:15,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 05:32:15,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 05:32:15,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-19 05:32:15,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 05:32:15,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:32:15,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:32:15,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-19 05:32:15,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 05:32:15,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 05:32:15,799 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:32:15,801 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:32:16,026 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:32:16,033 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:32:16,033 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-19 05:32:16,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:32:16 BoogieIcfgContainer [2021-11-19 05:32:16,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:32:16,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:32:16,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:32:16,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:32:16,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:32:15" (1/3) ... [2021-11-19 05:32:16,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0e4cf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:32:16, skipping insertion in model container [2021-11-19 05:32:16,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:15" (2/3) ... [2021-11-19 05:32:16,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0e4cf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:32:16, skipping insertion in model container [2021-11-19 05:32:16,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:32:16" (3/3) ... [2021-11-19 05:32:16,045 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072c.c [2021-11-19 05:32:16,052 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:32:16,052 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 05:32:16,124 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:32:16,147 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 05:32:16,148 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 05:32:16,180 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:32:16,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-19 05:32:16,187 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:32:16,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:32:16,190 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:32:16,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:32:16,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1945115165, now seen corresponding path program 1 times [2021-11-19 05:32:16,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:32:16,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169908187] [2021-11-19 05:32:16,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:32:16,216 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:32:16,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:32:16,220 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:32:16,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 05:32:16,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:32:16,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 05:32:16,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:32:16,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:32:16,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:32:16,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:32:16,505 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:32:16,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169908187] [2021-11-19 05:32:16,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1169908187] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:32:16,507 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:32:16,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 05:32:16,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373842940] [2021-11-19 05:32:16,512 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:32:16,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 05:32:16,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:32:16,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 05:32:16,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 05:32:16,572 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 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) [2021-11-19 05:32:16,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:32:16,596 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2021-11-19 05:32:16,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:32:16,599 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 [2021-11-19 05:32:16,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:32:16,609 INFO L225 Difference]: With dead ends: 48 [2021-11-19 05:32:16,609 INFO L226 Difference]: Without dead ends: 22 [2021-11-19 05:32:16,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 05:32:16,622 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:32:16,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:32:16,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-19 05:32:16,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-19 05:32:16,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:32:16,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-11-19 05:32:16,669 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 10 [2021-11-19 05:32:16,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:32:16,670 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-11-19 05:32:16,671 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) [2021-11-19 05:32:16,671 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-11-19 05:32:16,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 05:32:16,673 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:32:16,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:32:16,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 05:32:16,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:32:16,887 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:32:16,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:32:16,888 INFO L85 PathProgramCache]: Analyzing trace with hash -390192032, now seen corresponding path program 1 times [2021-11-19 05:32:16,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:32:16,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040473382] [2021-11-19 05:32:16,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:32:16,890 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:32:16,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:32:16,895 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:32:16,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 05:32:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:32:17,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 05:32:17,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:32:17,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:32:17,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:32:17,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:32:17,412 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:32:17,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040473382] [2021-11-19 05:32:17,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040473382] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:32:17,415 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:32:17,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 05:32:17,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631070589] [2021-11-19 05:32:17,420 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:32:17,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 05:32:17,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:32:17,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 05:32:17,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 05:32:17,428 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:32:17,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:32:17,541 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2021-11-19 05:32:17,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:32:17,542 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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 11 [2021-11-19 05:32:17,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:32:17,546 INFO L225 Difference]: With dead ends: 42 [2021-11-19 05:32:17,546 INFO L226 Difference]: Without dead ends: 31 [2021-11-19 05:32:17,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 05:32:17,555 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 17 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:32:17,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 126 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2021-11-19 05:32:17,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-19 05:32:17,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 21. [2021-11-19 05:32:17,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:32:17,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-11-19 05:32:17,567 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2021-11-19 05:32:17,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:32:17,568 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-11-19 05:32:17,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:32:17,569 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-11-19 05:32:17,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-19 05:32:17,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:32:17,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:32:17,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 05:32:17,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:32:17,789 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:32:17,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:32:17,790 INFO L85 PathProgramCache]: Analyzing trace with hash -2105213232, now seen corresponding path program 1 times [2021-11-19 05:32:17,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:32:17,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352036236] [2021-11-19 05:32:17,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:32:17,792 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:32:17,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:32:17,793 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:32:17,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 05:32:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:32:17,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 05:32:17,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:32:18,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:32:18,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:32:18,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:32:18,193 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:32:18,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352036236] [2021-11-19 05:32:18,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352036236] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:32:18,197 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:32:18,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 05:32:18,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728164128] [2021-11-19 05:32:18,198 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:32:18,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 05:32:18,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:32:18,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 05:32:18,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 05:32:18,204 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:32:18,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:32:18,275 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2021-11-19 05:32:18,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:32:18,276 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 14 [2021-11-19 05:32:18,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:32:18,277 INFO L225 Difference]: With dead ends: 31 [2021-11-19 05:32:18,278 INFO L226 Difference]: Without dead ends: 19 [2021-11-19 05:32:18,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 05:32:18,281 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:32:18,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 77 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2021-11-19 05:32:18,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-19 05:32:18,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-19 05:32:18,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:32:18,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-11-19 05:32:18,294 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 14 [2021-11-19 05:32:18,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:32:18,296 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-11-19 05:32:18,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:32:18,297 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-11-19 05:32:18,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-19 05:32:18,302 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:32:18,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:32:18,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 05:32:18,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:32:18,516 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:32:18,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:32:18,516 INFO L85 PathProgramCache]: Analyzing trace with hash -675711906, now seen corresponding path program 1 times [2021-11-19 05:32:18,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:32:18,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174596991] [2021-11-19 05:32:18,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:32:18,517 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:32:18,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:32:18,518 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:32:18,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 05:32:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:32:18,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 05:32:18,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:32:18,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-11-19 05:32:18,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-11-19 05:32:18,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:32:18,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:32:18,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:32:18,942 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:32:18,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174596991] [2021-11-19 05:32:18,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174596991] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:32:18,942 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:32:18,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 10 [2021-11-19 05:32:18,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877908596] [2021-11-19 05:32:18,943 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:32:18,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 05:32:18,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:32:18,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 05:32:18,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-19 05:32:18,944 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:32:19,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:32:19,041 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2021-11-19 05:32:19,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 05:32:19,042 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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 14 [2021-11-19 05:32:19,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:32:19,043 INFO L225 Difference]: With dead ends: 22 [2021-11-19 05:32:19,043 INFO L226 Difference]: Without dead ends: 19 [2021-11-19 05:32:19,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:32:19,045 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 34 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:32:19,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 55 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 15 Unchecked, 0.0s Time] [2021-11-19 05:32:19,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-19 05:32:19,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-19 05:32:19,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0) internal successors, (18), 18 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:32:19,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2021-11-19 05:32:19,051 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 14 [2021-11-19 05:32:19,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:32:19,051 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2021-11-19 05:32:19,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:32:19,052 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2021-11-19 05:32:19,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-19 05:32:19,053 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:32:19,053 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:32:19,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 05:32:19,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:32:19,268 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:32:19,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:32:19,269 INFO L85 PathProgramCache]: Analyzing trace with hash 438125939, now seen corresponding path program 1 times [2021-11-19 05:32:19,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:32:19,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066997487] [2021-11-19 05:32:19,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:32:19,269 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:32:19,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:32:19,271 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:32:19,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 05:32:19,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:32:19,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 05:32:19,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:32:19,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-11-19 05:32:19,505 INFO L354 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2021-11-19 05:32:19,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 47 [2021-11-19 05:32:19,923 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-19 05:32:19,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 30 [2021-11-19 05:32:20,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:32:20,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:32:20,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:32:20,973 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:32:20,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066997487] [2021-11-19 05:32:20,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1066997487] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:32:20,973 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:32:20,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 20 [2021-11-19 05:32:20,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807551112] [2021-11-19 05:32:20,974 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:32:20,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-19 05:32:20,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:32:20,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-19 05:32:20,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-11-19 05:32:20,975 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 20 states, 20 states have (on average 1.65) internal successors, (33), 20 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:32:21,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:32:21,143 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2021-11-19 05:32:21,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 05:32:21,144 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.65) internal successors, (33), 20 states have internal predecessors, (33), 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 18 [2021-11-19 05:32:21,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:32:21,144 INFO L225 Difference]: With dead ends: 19 [2021-11-19 05:32:21,144 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 05:32:21,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2021-11-19 05:32:21,146 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:32:21,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 71 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 29 Unchecked, 0.0s Time] [2021-11-19 05:32:21,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 05:32:21,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 05:32:21,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:32:21,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 05:32:21,148 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-11-19 05:32:21,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:32:21,148 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 05:32:21,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.65) internal successors, (33), 20 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:32:21,149 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 05:32:21,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 05:32:21,158 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 05:32:21,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 05:32:21,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:32:21,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 05:32:21,449 INFO L858 garLoopResultBuilder]: For program point L23(lines 23 41) no Hoare annotation was computed. [2021-11-19 05:32:21,450 INFO L858 garLoopResultBuilder]: For program point L23-1(lines 23 41) no Hoare annotation was computed. [2021-11-19 05:32:21,450 INFO L858 garLoopResultBuilder]: For program point L48-1(lines 48 52) no Hoare annotation was computed. [2021-11-19 05:32:21,450 INFO L854 garLoopResultBuilder]: At program point L48-2(lines 48 52) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_trunc_float_#res#1|) |ULTIMATE.start_main_#t~short10#1| (exists ((|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12| (_ BitVec 32)) (|v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9|) (_ bv0 32))) (.cse0 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12|) (_ bv0 32)))) (and (= (bvand (_ bv2147483648 32) .cse0) .cse1) (= |ULTIMATE.start___signbit_float_~x#1| (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (_ +zero 8 24))))) (= |ULTIMATE.start_trunc_float_~x#1| (_ +zero 8 24))) [2021-11-19 05:32:21,450 INFO L858 garLoopResultBuilder]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2021-11-19 05:32:21,450 INFO L861 garLoopResultBuilder]: At program point L73(lines 57 74) the Hoare annotation is: true [2021-11-19 05:32:21,451 INFO L858 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2021-11-19 05:32:21,451 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-19 05:32:21,451 INFO L858 garLoopResultBuilder]: For program point L32-1(lines 32 36) no Hoare annotation was computed. [2021-11-19 05:32:21,451 INFO L854 garLoopResultBuilder]: At program point L32-2(lines 32 36) the Hoare annotation is: false [2021-11-19 05:32:21,451 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 05:32:21,451 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-19 05:32:21,451 INFO L858 garLoopResultBuilder]: For program point L24(lines 24 37) no Hoare annotation was computed. [2021-11-19 05:32:21,451 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 69) no Hoare annotation was computed. [2021-11-19 05:32:21,451 INFO L858 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2021-11-19 05:32:21,452 INFO L854 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: (= |ULTIMATE.start_trunc_float_~x#1| (_ +zero 8 24)) [2021-11-19 05:32:21,452 INFO L858 garLoopResultBuilder]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2021-11-19 05:32:21,452 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 05:32:21,452 INFO L854 garLoopResultBuilder]: At program point L54(lines 45 55) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_float_#res#1| (_ bv0 32)) (= (_ +zero 8 24) |ULTIMATE.start_trunc_float_#res#1|) |ULTIMATE.start_main_#t~short10#1| (= |ULTIMATE.start_trunc_float_~x#1| (_ +zero 8 24))) [2021-11-19 05:32:21,452 INFO L854 garLoopResultBuilder]: At program point L42(lines 14 43) the Hoare annotation is: (and (= |ULTIMATE.start_trunc_float_~x#1| (_ +zero 8 24)) (exists ((|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12| (_ BitVec 32)) (|v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12|) (_ bv0 32))) (.cse1 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9|) (_ bv0 32)))) (and (= (bvand (_ bv2147483648 32) .cse0) .cse1) (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (_ +zero 8 24)) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) |ULTIMATE.start_trunc_float_#res#1|))))) [2021-11-19 05:32:21,452 INFO L858 garLoopResultBuilder]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2021-11-19 05:32:21,452 INFO L854 garLoopResultBuilder]: At program point L26-2(lines 26 30) the Hoare annotation is: (and (bvslt |ULTIMATE.start_trunc_float_~exponent_less_127~0#1| (_ bv23 32)) (exists ((|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11|) (_ bv0 32)))) (and (= |ULTIMATE.start_trunc_float_~signbit~0#1| (bvand (_ bv2147483648 32) .cse0)) (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (_ +zero 8 24)))))) [2021-11-19 05:32:21,453 INFO L858 garLoopResultBuilder]: For program point L39(lines 39 40) no Hoare annotation was computed. [2021-11-19 05:32:21,453 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-11-19 05:32:21,453 INFO L858 garLoopResultBuilder]: For program point L68-2(lines 68 71) no Hoare annotation was computed. [2021-11-19 05:32:21,460 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-19 05:32:21,462 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 05:32:21,478 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,479 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,480 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,480 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,480 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,480 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,481 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,481 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,484 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,484 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,485 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,485 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,485 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,485 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,486 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,486 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,488 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-19 05:32:21,488 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-19 05:32:21,488 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-19 05:32:21,489 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-19 05:32:21,490 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-19 05:32:21,490 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-19 05:32:21,490 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-19 05:32:21,490 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-19 05:32:21,496 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,496 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,496 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,496 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,497 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,497 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,497 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,497 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,508 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,509 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,509 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,509 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,510 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,511 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,511 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,512 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:32:21 BoogieIcfgContainer [2021-11-19 05:32:21,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 05:32:21,518 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:32:21,518 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:32:21,518 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:32:21,519 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:32:16" (3/4) ... [2021-11-19 05:32:21,524 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 05:32:21,537 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-11-19 05:32:21,539 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-19 05:32:21,539 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 05:32:21,540 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 05:32:21,568 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ~bvslt32(exponent_less_127, 23bv32) && (\exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: signbit == ~bvand32(2147483648bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32]) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0]) == ~Pluszero~LONGDOUBLE()) [2021-11-19 05:32:21,569 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == ~Pluszero~LONGDOUBLE() && (\exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12 : bv32, v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9 : bv32 :: (~bvand32(2147483648bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32]) == unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32] && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][22:0]) == \result) [2021-11-19 05:32:21,571 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~Pluszero~LONGDOUBLE() == \result && aux-res == 0.0f && __signbit_float(res) == 0-aux) && (\exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12 : bv32, v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9 : bv32 :: (~bvand32(2147483648bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32]) == unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32] && x == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][22:0])) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE() [2021-11-19 05:32:21,571 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == 0bv32 && ~Pluszero~LONGDOUBLE() == \result) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && x == ~Pluszero~LONGDOUBLE() [2021-11-19 05:32:21,592 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 05:32:21,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:32:21,594 INFO L158 Benchmark]: Toolchain (without parser) took 6518.55ms. Allocated memory was 73.4MB in the beginning and 109.1MB in the end (delta: 35.7MB). Free memory was 55.2MB in the beginning and 48.5MB in the end (delta: 6.7MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2021-11-19 05:32:21,594 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 73.4MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:32:21,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.57ms. Allocated memory is still 73.4MB. Free memory was 54.9MB in the beginning and 56.8MB in the end (delta: -1.9MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2021-11-19 05:32:21,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.32ms. Allocated memory is still 73.4MB. Free memory was 56.8MB in the beginning and 55.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:32:21,596 INFO L158 Benchmark]: Boogie Preprocessor took 35.53ms. Allocated memory is still 73.4MB. Free memory was 55.0MB in the beginning and 53.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:32:21,596 INFO L158 Benchmark]: RCFGBuilder took 415.78ms. Allocated memory is still 73.4MB. Free memory was 53.5MB in the beginning and 41.9MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 05:32:21,597 INFO L158 Benchmark]: TraceAbstraction took 5479.38ms. Allocated memory was 73.4MB in the beginning and 109.1MB in the end (delta: 35.7MB). Free memory was 41.4MB in the beginning and 51.5MB in the end (delta: -10.1MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2021-11-19 05:32:21,597 INFO L158 Benchmark]: Witness Printer took 75.37ms. Allocated memory is still 109.1MB. Free memory was 51.5MB in the beginning and 48.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:32:21,600 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 73.4MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 429.57ms. Allocated memory is still 73.4MB. Free memory was 54.9MB in the beginning and 56.8MB in the end (delta: -1.9MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.32ms. Allocated memory is still 73.4MB. Free memory was 56.8MB in the beginning and 55.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.53ms. Allocated memory is still 73.4MB. Free memory was 55.0MB in the beginning and 53.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 415.78ms. Allocated memory is still 73.4MB. Free memory was 53.5MB in the beginning and 41.9MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5479.38ms. Allocated memory was 73.4MB in the beginning and 109.1MB in the end (delta: 35.7MB). Free memory was 41.4MB in the beginning and 51.5MB in the end (delta: -10.1MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * Witness Printer took 75.37ms. Allocated memory is still 109.1MB. Free memory was 51.5MB in the beginning and 48.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 69]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 357 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 53 IncrementalHoareTripleChecker+Unchecked, 266 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 91 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 84 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 13 NumberOfFragments, 178 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 35 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 124 ConstructedInterpolants, 34 QuantifiedInterpolants, 1260 SizeOfPredicates, 35 NumberOfNonLiveVariables, 215 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: ((\result == 0bv32 && ~Pluszero~LONGDOUBLE() == \result) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 48]: Loop Invariant [2021-11-19 05:32:21,615 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,616 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,616 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,616 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,616 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,617 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,617 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,617 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,618 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,618 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,618 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,619 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,619 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,619 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,619 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,619 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] Derived loop invariant: ((~Pluszero~LONGDOUBLE() == \result && aux-res == 0.0f && __signbit_float(res) == 0-aux) && (\exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12 : bv32, v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9 : bv32 :: (~bvand32(2147483648bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32]) == unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32] && x == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][22:0])) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 26]: Loop Invariant [2021-11-19 05:32:21,621 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-19 05:32:21,621 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-19 05:32:21,621 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-19 05:32:21,621 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-19 05:32:21,622 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-19 05:32:21,622 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-19 05:32:21,622 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-19 05:32:21,623 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] Derived loop invariant: ~bvslt32(exponent_less_127, 23bv32) && (\exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: signbit == ~bvand32(2147483648bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32]) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0]) == ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant [2021-11-19 05:32:21,624 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,624 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,624 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,624 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,625 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,625 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,625 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,625 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,626 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,626 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,626 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,627 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,627 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12,QUANTIFIED] [2021-11-19 05:32:21,627 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,627 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-19 05:32:21,627 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] Derived loop invariant: x == ~Pluszero~LONGDOUBLE() && (\exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12 : bv32, v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9 : bv32 :: (~bvand32(2147483648bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32]) == unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32] && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][22:0]) == \result) RESULT: Ultimate proved your program to be correct! [2021-11-19 05:32:21,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780f7f45-af59-4330-b56e-d0ae1d58616f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE