./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0621b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0621b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8 --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 f3f9ad21dd7d67bbc4f66ae64c1354ed5030da1a5ccfb05f9849101ef77cea32 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:59:36,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:59:36,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:59:36,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:59:36,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:59:36,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:59:36,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:59:36,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:59:36,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:59:36,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:59:36,684 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:59:36,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:59:36,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:59:36,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:59:36,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:59:36,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:59:36,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:59:36,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:59:36,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:59:36,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:59:36,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:59:36,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:59:36,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:59:36,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:59:36,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:59:36,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:59:36,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:59:36,711 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:59:36,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:59:36,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:59:36,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:59:36,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:59:36,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:59:36,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:59:36,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:59:36,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:59:36,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:59:36,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:59:36,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:59:36,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:59:36,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:59:36,728 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:59:36,782 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:59:36,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:59:36,785 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:59:36,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:59:36,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:59:36,787 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:59:36,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:59:36,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:59:36,789 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:59:36,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:59:36,791 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:59:36,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:59:36,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:59:36,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:59:36,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:59:36,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:59:36,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:59:36,793 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:59:36,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:59:36,793 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:59:36,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:59:36,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:59:36,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:59:36,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:59:36,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:59:36,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:59:36,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:59:36,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:59:36,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:59:36,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:59:36,797 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:59:36,797 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:59:36,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:59:36,798 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_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3f9ad21dd7d67bbc4f66ae64c1354ed5030da1a5ccfb05f9849101ef77cea32 [2022-11-16 11:59:37,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:59:37,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:59:37,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:59:37,149 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:59:37,150 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:59:37,152 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/float-newlib/float_req_bl_0621b.c [2022-11-16 11:59:37,219 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/data/d959a0eca/72ea5c3b41174989b909977b2b498d3a/FLAGf806f4838 [2022-11-16 11:59:37,679 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:59:37,680 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/sv-benchmarks/c/float-newlib/float_req_bl_0621b.c [2022-11-16 11:59:37,692 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/data/d959a0eca/72ea5c3b41174989b909977b2b498d3a/FLAGf806f4838 [2022-11-16 11:59:38,065 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/data/d959a0eca/72ea5c3b41174989b909977b2b498d3a [2022-11-16 11:59:38,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:59:38,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:59:38,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:59:38,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:59:38,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:59:38,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:59:38" (1/1) ... [2022-11-16 11:59:38,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cbbc064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:38, skipping insertion in model container [2022-11-16 11:59:38,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:59:38" (1/1) ... [2022-11-16 11:59:38,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:59:38,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:59:38,430 WARN L229 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_39fe8a71-3429-49a4-9dd5-a4aa02273289/sv-benchmarks/c/float-newlib/float_req_bl_0621b.c[3193,3206] [2022-11-16 11:59:38,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:59:38,456 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:59:38,523 WARN L229 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_39fe8a71-3429-49a4-9dd5-a4aa02273289/sv-benchmarks/c/float-newlib/float_req_bl_0621b.c[3193,3206] [2022-11-16 11:59:38,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:59:38,548 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:59:38,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:38 WrapperNode [2022-11-16 11:59:38,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:59:38,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:59:38,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:59:38,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:59:38,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:38" (1/1) ... [2022-11-16 11:59:38,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:38" (1/1) ... [2022-11-16 11:59:38,628 INFO L138 Inliner]: procedures = 19, calls = 60, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 177 [2022-11-16 11:59:38,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:59:38,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:59:38,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:59:38,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:59:38,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:38" (1/1) ... [2022-11-16 11:59:38,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:38" (1/1) ... [2022-11-16 11:59:38,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:38" (1/1) ... [2022-11-16 11:59:38,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:38" (1/1) ... [2022-11-16 11:59:38,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:38" (1/1) ... [2022-11-16 11:59:38,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:38" (1/1) ... [2022-11-16 11:59:38,698 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:38" (1/1) ... [2022-11-16 11:59:38,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:38" (1/1) ... [2022-11-16 11:59:38,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:59:38,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:59:38,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:59:38,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:59:38,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:38" (1/1) ... [2022-11-16 11:59:38,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:59:38,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:59:38,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:59:38,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:59:38,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:59:38,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:59:38,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:59:38,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-16 11:59:38,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:59:38,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-16 11:59:38,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:59:38,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:59:38,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:59:38,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-16 11:59:38,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:59:38,960 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:59:38,963 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:59:39,357 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:59:39,365 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:59:39,365 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 11:59:39,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:59:39 BoogieIcfgContainer [2022-11-16 11:59:39,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:59:39,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:59:39,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:59:39,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:59:39,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:59:38" (1/3) ... [2022-11-16 11:59:39,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47896f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:59:39, skipping insertion in model container [2022-11-16 11:59:39,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:38" (2/3) ... [2022-11-16 11:59:39,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47896f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:59:39, skipping insertion in model container [2022-11-16 11:59:39,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:59:39" (3/3) ... [2022-11-16 11:59:39,380 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0621b.c [2022-11-16 11:59:39,404 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:59:39,404 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:59:39,481 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:59:39,494 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3dc547de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:59:39,494 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:59:39,499 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 29 states have (on average 1.6896551724137931) internal successors, (49), 30 states have internal predecessors, (49), 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) [2022-11-16 11:59:39,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 11:59:39,508 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:59:39,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:59:39,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:59:39,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:59:39,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1839629149, now seen corresponding path program 1 times [2022-11-16 11:59:39,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:59:39,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431948383] [2022-11-16 11:59:39,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:59:39,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:59:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:39,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:59:39,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:59:39,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431948383] [2022-11-16 11:59:39,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431948383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:59:39,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:59:39,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:59:39,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117798119] [2022-11-16 11:59:39,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:59:39,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:59:39,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:59:39,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:59:39,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:59:39,911 INFO L87 Difference]: Start difference. First operand has 31 states, 29 states have (on average 1.6896551724137931) internal successors, (49), 30 states have internal predecessors, (49), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-16 11:59:39,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:59:39,937 INFO L93 Difference]: Finished difference Result 60 states and 96 transitions. [2022-11-16 11:59:39,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:59:39,940 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2022-11-16 11:59:39,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:59:39,952 INFO L225 Difference]: With dead ends: 60 [2022-11-16 11:59:39,953 INFO L226 Difference]: Without dead ends: 28 [2022-11-16 11:59:39,957 INFO L412 NwaCegarLoop]: 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 [2022-11-16 11:59:39,961 INFO L413 NwaCegarLoop]: 42 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, 42 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 [2022-11-16 11:59:39,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:59:39,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-16 11:59:40,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-16 11:59:40,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 27 states have internal predecessors, (39), 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) [2022-11-16 11:59:40,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 39 transitions. [2022-11-16 11:59:40,007 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 39 transitions. Word has length 9 [2022-11-16 11:59:40,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:59:40,007 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 39 transitions. [2022-11-16 11:59:40,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-16 11:59:40,008 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2022-11-16 11:59:40,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 11:59:40,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:59:40,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:59:40,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:59:40,010 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:59:40,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:59:40,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1548721664, now seen corresponding path program 1 times [2022-11-16 11:59:40,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:59:40,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6316134] [2022-11-16 11:59:40,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:59:40,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:59:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:40,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:59:40,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:59:40,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6316134] [2022-11-16 11:59:40,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6316134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:59:40,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:59:40,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:59:40,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474354118] [2022-11-16 11:59:40,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:59:40,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:59:40,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:59:40,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:59:40,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:59:40,184 INFO L87 Difference]: Start difference. First operand 28 states and 39 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2022-11-16 11:59:40,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:59:40,272 INFO L93 Difference]: Finished difference Result 57 states and 77 transitions. [2022-11-16 11:59:40,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:59:40,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 [2022-11-16 11:59:40,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:59:40,275 INFO L225 Difference]: With dead ends: 57 [2022-11-16 11:59:40,275 INFO L226 Difference]: Without dead ends: 39 [2022-11-16 11:59:40,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:59:40,277 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 12 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:59:40,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 60 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:59:40,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-16 11:59:40,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2022-11-16 11:59:40,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.4) internal successors, (42), 30 states have internal predecessors, (42), 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) [2022-11-16 11:59:40,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2022-11-16 11:59:40,290 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 10 [2022-11-16 11:59:40,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:59:40,290 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2022-11-16 11:59:40,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2022-11-16 11:59:40,292 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2022-11-16 11:59:40,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 11:59:40,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:59:40,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:59:40,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:59:40,297 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:59:40,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:59:40,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1931070784, now seen corresponding path program 1 times [2022-11-16 11:59:40,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:59:40,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162737430] [2022-11-16 11:59:40,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:59:40,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:59:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:59:40,360 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:59:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:59:40,419 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:59:40,420 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:59:40,421 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:59:40,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:59:40,427 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-16 11:59:40,431 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:59:40,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:59:40 BoogieIcfgContainer [2022-11-16 11:59:40,469 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:59:40,470 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:59:40,470 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:59:40,470 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:59:40,471 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:59:39" (3/4) ... [2022-11-16 11:59:40,474 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:59:40,475 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:59:40,476 INFO L158 Benchmark]: Toolchain (without parser) took 2405.86ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 54.3MB in the beginning and 59.8MB in the end (delta: -5.5MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2022-11-16 11:59:40,476 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 90.2MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:59:40,477 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.06ms. Allocated memory is still 90.2MB. Free memory was 54.1MB in the beginning and 64.5MB in the end (delta: -10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:59:40,478 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.82ms. Allocated memory is still 90.2MB. Free memory was 64.5MB in the beginning and 62.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:59:40,479 INFO L158 Benchmark]: Boogie Preprocessor took 82.26ms. Allocated memory is still 90.2MB. Free memory was 62.1MB in the beginning and 60.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:59:40,479 INFO L158 Benchmark]: RCFGBuilder took 653.37ms. Allocated memory is still 90.2MB. Free memory was 60.3MB in the beginning and 45.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 11:59:40,480 INFO L158 Benchmark]: TraceAbstraction took 1098.33ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 44.5MB in the beginning and 60.6MB in the end (delta: -16.1MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2022-11-16 11:59:40,481 INFO L158 Benchmark]: Witness Printer took 5.33ms. Allocated memory is still 117.4MB. Free memory was 60.6MB in the beginning and 59.8MB in the end (delta: 794.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:59:40,484 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 90.2MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.06ms. Allocated memory is still 90.2MB. Free memory was 54.1MB in the beginning and 64.5MB in the end (delta: -10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.82ms. Allocated memory is still 90.2MB. Free memory was 64.5MB in the beginning and 62.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.26ms. Allocated memory is still 90.2MB. Free memory was 62.1MB in the beginning and 60.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 653.37ms. Allocated memory is still 90.2MB. Free memory was 60.3MB in the beginning and 45.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1098.33ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 44.5MB in the beginning and 60.6MB in the end (delta: -16.1MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Witness Printer took 5.33ms. Allocated memory is still 117.4MB. Free memory was 60.6MB in the beginning and 59.8MB in the end (delta: 794.9kB). 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: 132]: 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 131, overapproximation of someUnaryDOUBLEoperation at line 49, overapproximation of someBinaryArithmeticFLOAToperation at line 70. Possible FailurePath: [L48-L52] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L34-L39] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L54-L56] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L41-L46] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L54-L56] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L14] static const float huge_floor = 1.0e30; [L54-L56] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={4:0}, atanhi_atan={5:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L128] float x = -1.0f / 0.0f; [L129] CALL, EXPR atan_float(x) [L59] float w, s1, s2, z; [L60] __int32_t ix, hx, id; VAL [\old(x)=1000000000000000000000000000001, aT_atan={4:0}, atanhi_atan={5:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=1000000000000000000000000000001] [L63] ieee_float_shape_type gf_u; [L64] gf_u.value = (x) [L65] EXPR gf_u.word [L65] (hx) = gf_u.word [L67] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000001, aT_atan={4:0}, atanhi_atan={5:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=2147483647, ix=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=1000000000000000000000000000001] [L68] COND TRUE ix >= 0x50800000 VAL [\old(x)=1000000000000000000000000000001, aT_atan={4:0}, atanhi_atan={5:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=2147483647, ix=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=1000000000000000000000000000001] [L69] COND TRUE ((ix) > 0x7f800000L) [L70] return x + x; VAL [\old(x)=1000000000000000000000000000001, aT_atan={4:0}, atanhi_atan={5:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=2147483647, ix=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=1000000000000000000000000000001] [L129] RET, EXPR atan_float(x) [L129] float res = atan_float(x); [L131] COND TRUE res != -pi_o_2 VAL [aT_atan={4:0}, atanhi_atan={5:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000002, x=1000000000000000000000000000001] [L132] reach_error() VAL [aT_atan={4:0}, atanhi_atan={5:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000002, x=1000000000000000000000000000001] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 81 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 11:59:40,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0621b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8 --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 f3f9ad21dd7d67bbc4f66ae64c1354ed5030da1a5ccfb05f9849101ef77cea32 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:59:42,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:59:42,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:59:42,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:59:42,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:59:42,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:59:42,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:59:42,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:59:42,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:59:42,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:59:42,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:59:42,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:59:42,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:59:42,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:59:42,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:59:42,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:59:42,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:59:42,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:59:42,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:59:42,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:59:42,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:59:42,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:59:42,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:59:42,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:59:42,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:59:43,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:59:43,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:59:43,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:59:43,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:59:43,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:59:43,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:59:43,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:59:43,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:59:43,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:59:43,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:59:43,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:59:43,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:59:43,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:59:43,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:59:43,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:59:43,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:59:43,021 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-16 11:59:43,044 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:59:43,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:59:43,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:59:43,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:59:43,046 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:59:43,046 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:59:43,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:59:43,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:59:43,048 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:59:43,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:59:43,048 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:59:43,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:59:43,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:59:43,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:59:43,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:59:43,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:59:43,050 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:59:43,050 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 11:59:43,051 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 11:59:43,051 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:59:43,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:59:43,051 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:59:43,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:59:43,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:59:43,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:59:43,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:59:43,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:59:43,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:59:43,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:59:43,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:59:43,054 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 11:59:43,054 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 11:59:43,055 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:59:43,055 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:59:43,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:59:43,055 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 11:59:43,056 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_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3f9ad21dd7d67bbc4f66ae64c1354ed5030da1a5ccfb05f9849101ef77cea32 [2022-11-16 11:59:43,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:59:43,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:59:43,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:59:43,475 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:59:43,476 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:59:43,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/float-newlib/float_req_bl_0621b.c [2022-11-16 11:59:43,547 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/data/d13163337/bb77e6e9d99e413389767b9309d38733/FLAG3e0ffcda6 [2022-11-16 11:59:44,053 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:59:44,058 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/sv-benchmarks/c/float-newlib/float_req_bl_0621b.c [2022-11-16 11:59:44,069 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/data/d13163337/bb77e6e9d99e413389767b9309d38733/FLAG3e0ffcda6 [2022-11-16 11:59:44,414 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/data/d13163337/bb77e6e9d99e413389767b9309d38733 [2022-11-16 11:59:44,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:59:44,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:59:44,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:59:44,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:59:44,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:59:44,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:59:44" (1/1) ... [2022-11-16 11:59:44,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31497c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:44, skipping insertion in model container [2022-11-16 11:59:44,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:59:44" (1/1) ... [2022-11-16 11:59:44,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:59:44,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:59:44,757 WARN L229 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_39fe8a71-3429-49a4-9dd5-a4aa02273289/sv-benchmarks/c/float-newlib/float_req_bl_0621b.c[3193,3206] [2022-11-16 11:59:44,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:59:44,786 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:59:44,852 WARN L229 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_39fe8a71-3429-49a4-9dd5-a4aa02273289/sv-benchmarks/c/float-newlib/float_req_bl_0621b.c[3193,3206] [2022-11-16 11:59:44,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:59:44,883 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:59:44,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:44 WrapperNode [2022-11-16 11:59:44,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:59:44,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:59:44,886 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:59:44,886 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:59:44,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:44" (1/1) ... [2022-11-16 11:59:44,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:44" (1/1) ... [2022-11-16 11:59:44,934 INFO L138 Inliner]: procedures = 22, calls = 60, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 171 [2022-11-16 11:59:44,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:59:44,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:59:44,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:59:44,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:59:44,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:44" (1/1) ... [2022-11-16 11:59:44,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:44" (1/1) ... [2022-11-16 11:59:44,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:44" (1/1) ... [2022-11-16 11:59:44,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:44" (1/1) ... [2022-11-16 11:59:44,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:44" (1/1) ... [2022-11-16 11:59:44,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:44" (1/1) ... [2022-11-16 11:59:44,989 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:44" (1/1) ... [2022-11-16 11:59:45,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:44" (1/1) ... [2022-11-16 11:59:45,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:59:45,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:59:45,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:59:45,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:59:45,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:44" (1/1) ... [2022-11-16 11:59:45,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:59:45,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:59:45,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:59:45,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:59:45,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:59:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-11-16 11:59:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 11:59:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:59:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-16 11:59:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-16 11:59:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:59:45,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:59:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-16 11:59:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 11:59:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:59:45,246 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:59:45,248 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:59:56,313 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:59:56,319 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:59:56,320 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 11:59:56,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:59:56 BoogieIcfgContainer [2022-11-16 11:59:56,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:59:56,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:59:56,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:59:56,328 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:59:56,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:59:44" (1/3) ... [2022-11-16 11:59:56,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5193e149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:59:56, skipping insertion in model container [2022-11-16 11:59:56,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:59:44" (2/3) ... [2022-11-16 11:59:56,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5193e149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:59:56, skipping insertion in model container [2022-11-16 11:59:56,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:59:56" (3/3) ... [2022-11-16 11:59:56,331 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0621b.c [2022-11-16 11:59:56,350 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:59:56,350 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:59:56,397 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:59:56,404 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2bd9ad71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:59:56,404 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:59:56,408 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 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) [2022-11-16 11:59:56,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 11:59:56,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:59:56,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:59:56,416 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:59:56,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:59:56,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1906430501, now seen corresponding path program 1 times [2022-11-16 11:59:56,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:59:56,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1505059311] [2022-11-16 11:59:56,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:59:56,435 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:59:56,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:59:56,450 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:59:56,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 11:59:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:57,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 11:59:57,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:59:57,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:59:57,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:59:57,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:59:57,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1505059311] [2022-11-16 11:59:57,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1505059311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:59:57,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:59:57,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:59:57,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261687017] [2022-11-16 11:59:57,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:59:57,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:59:57,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:59:57,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:59:57,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:59:57,485 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-16 11:59:57,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:59:57,515 INFO L93 Difference]: Finished difference Result 58 states and 90 transitions. [2022-11-16 11:59:57,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:59:57,518 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2022-11-16 11:59:57,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:59:57,528 INFO L225 Difference]: With dead ends: 58 [2022-11-16 11:59:57,528 INFO L226 Difference]: Without dead ends: 27 [2022-11-16 11:59:57,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:59:57,538 INFO L413 NwaCegarLoop]: 39 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, 39 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 [2022-11-16 11:59:57,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:59:57,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-16 11:59:57,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-16 11:59:57,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 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) [2022-11-16 11:59:57,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2022-11-16 11:59:57,581 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 9 [2022-11-16 11:59:57,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:59:57,582 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2022-11-16 11:59:57,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-16 11:59:57,582 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2022-11-16 11:59:57,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 11:59:57,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:59:57,583 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:59:57,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:59:57,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:59:57,799 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:59:57,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:59:57,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1481920312, now seen corresponding path program 1 times [2022-11-16 11:59:57,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:59:57,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989240123] [2022-11-16 11:59:57,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:59:57,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:59:57,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:59:57,802 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:59:57,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 11:59:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:58,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 11:59:58,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:59:59,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:59:59,123 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:59:59,123 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:59:59,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989240123] [2022-11-16 11:59:59,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989240123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:59:59,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:59:59,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:59:59,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644723866] [2022-11-16 11:59:59,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:59:59,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:59:59,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:59:59,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:59:59,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:59:59,127 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2022-11-16 11:59:59,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:59:59,136 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2022-11-16 11:59:59,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:59:59,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 [2022-11-16 11:59:59,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:59:59,137 INFO L225 Difference]: With dead ends: 31 [2022-11-16 11:59:59,137 INFO L226 Difference]: Without dead ends: 27 [2022-11-16 11:59:59,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:59:59,139 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:59:59,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 92 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 31 Unchecked, 0.0s Time] [2022-11-16 11:59:59,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-16 11:59:59,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-16 11:59:59,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 26 states have internal predecessors, (35), 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) [2022-11-16 11:59:59,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2022-11-16 11:59:59,145 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 10 [2022-11-16 11:59:59,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:59:59,145 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-11-16 11:59:59,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2022-11-16 11:59:59,146 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2022-11-16 11:59:59,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 11:59:59,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:59:59,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:59:59,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:59:59,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:59:59,363 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:59:59,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:59:59,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1305411306, now seen corresponding path program 1 times [2022-11-16 11:59:59,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:59:59,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408152672] [2022-11-16 11:59:59,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:59:59,365 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:59:59,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:59:59,366 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:59:59,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-16 12:00:00,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:00:00,138 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-16 12:00:00,141 INFO L158 Benchmark]: Toolchain (without parser) took 15722.18ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 37.7MB in the beginning and 36.2MB in the end (delta: 1.5MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2022-11-16 12:00:00,142 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 58.7MB. Free memory was 40.9MB in the beginning and 40.8MB in the end (delta: 47.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:00:00,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 139 [2022-11-16 12:00:00,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.50ms. Allocated memory is still 58.7MB. Free memory was 37.4MB in the beginning and 40.0MB in the end (delta: -2.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 12:00:00,150 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.14ms. Allocated memory is still 58.7MB. Free memory was 39.8MB in the beginning and 37.5MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:00:00,150 INFO L158 Benchmark]: Boogie Preprocessor took 70.45ms. Allocated memory is still 58.7MB. Free memory was 37.5MB in the beginning and 35.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:00:00,151 INFO L158 Benchmark]: RCFGBuilder took 11315.76ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 35.2MB in the beginning and 42.6MB in the end (delta: -7.4MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2022-11-16 12:00:00,153 INFO L158 Benchmark]: TraceAbstraction took 3816.28ms. Allocated memory is still 71.3MB. Free memory was 41.9MB in the beginning and 36.2MB in the end (delta: 5.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-11-16 12:00:00,156 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 58.7MB. Free memory was 40.9MB in the beginning and 40.8MB in the end (delta: 47.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 460.50ms. Allocated memory is still 58.7MB. Free memory was 37.4MB in the beginning and 40.0MB in the end (delta: -2.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.14ms. Allocated memory is still 58.7MB. Free memory was 39.8MB in the beginning and 37.5MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.45ms. Allocated memory is still 58.7MB. Free memory was 37.5MB in the beginning and 35.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 11315.76ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 35.2MB in the beginning and 42.6MB in the end (delta: -7.4MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3816.28ms. Allocated memory is still 71.3MB. Free memory was 41.9MB in the beginning and 36.2MB in the end (delta: 5.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-16 12:00:00,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/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: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fe8a71-3429-49a4-9dd5-a4aa02273289/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output.