./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0330a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c051502-568d-4cbe-b6b7-f9ae83c6bb01/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c051502-568d-4cbe-b6b7-f9ae83c6bb01/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c051502-568d-4cbe-b6b7-f9ae83c6bb01/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c051502-568d-4cbe-b6b7-f9ae83c6bb01/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0330a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c051502-568d-4cbe-b6b7-f9ae83c6bb01/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c051502-568d-4cbe-b6b7-f9ae83c6bb01/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --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 d8a5eb990c153192e318d2d9dac158f64e046e94b625c258b59ee0833398ae1b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:06:19,672 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:06:19,765 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c051502-568d-4cbe-b6b7-f9ae83c6bb01/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:06:19,770 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:06:19,770 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:06:19,805 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:06:19,807 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:06:19,808 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:06:19,810 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:06:19,811 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:06:19,811 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:06:19,811 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:06:19,812 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:06:19,812 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:06:19,814 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:06:19,815 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:06:19,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:06:19,816 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:06:19,816 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:06:19,817 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:06:19,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:06:19,821 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:06:19,821 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:06:19,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:06:19,822 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:06:19,822 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:06:19,822 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:06:19,823 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:06:19,823 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:06:19,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:06:19,823 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:06:19,824 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:06:19,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:19,829 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:06:19,829 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:06:19,830 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:06:19,830 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:06:19,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:06:19,830 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:06:19,831 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:06:19,831 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:06:19,833 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:06:19,833 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_0c051502-568d-4cbe-b6b7-f9ae83c6bb01/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c051502-568d-4cbe-b6b7-f9ae83c6bb01/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8a5eb990c153192e318d2d9dac158f64e046e94b625c258b59ee0833398ae1b [2024-10-31 22:06:20,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:06:20,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:06:20,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:06:20,135 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:06:20,135 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:06:20,136 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c051502-568d-4cbe-b6b7-f9ae83c6bb01/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/float-newlib/float_req_bl_0330a.c Unable to find full path for "g++" [2024-10-31 22:06:22,382 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:06:22,719 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:06:22,720 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c051502-568d-4cbe-b6b7-f9ae83c6bb01/sv-benchmarks/c/float-newlib/float_req_bl_0330a.c [2024-10-31 22:06:22,744 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c051502-568d-4cbe-b6b7-f9ae83c6bb01/bin/uautomizer-verify-4GaUIPS5ZU/data/ed971de1c/d13ecfa92a47484d8c906c7c803e106f/FLAGada57abac [2024-10-31 22:06:22,987 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c051502-568d-4cbe-b6b7-f9ae83c6bb01/bin/uautomizer-verify-4GaUIPS5ZU/data/ed971de1c/d13ecfa92a47484d8c906c7c803e106f [2024-10-31 22:06:22,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:06:22,992 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:06:22,994 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:22,994 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:06:23,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:06:23,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:22" (1/1) ... [2024-10-31 22:06:23,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@664822fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23, skipping insertion in model container [2024-10-31 22:06:23,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:22" (1/1) ... [2024-10-31 22:06:23,077 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:06:23,473 WARN L251 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_0c051502-568d-4cbe-b6b7-f9ae83c6bb01/sv-benchmarks/c/float-newlib/float_req_bl_0330a.c[15496,15509] [2024-10-31 22:06:23,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:23,564 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:06:23,783 WARN L251 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_0c051502-568d-4cbe-b6b7-f9ae83c6bb01/sv-benchmarks/c/float-newlib/float_req_bl_0330a.c[15496,15509] [2024-10-31 22:06:23,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:23,830 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:06:23,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23 WrapperNode [2024-10-31 22:06:23,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:23,833 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:23,834 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:06:23,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:06:23,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:23,874 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:23,986 INFO L138 Inliner]: procedures = 27, calls = 491, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 1179 [2024-10-31 22:06:23,986 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:23,987 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:06:23,987 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:06:23,988 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:06:24,020 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:24,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:24,043 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:24,064 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-10-31 22:06:24,064 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:24,065 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:24,138 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:24,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:24,200 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:24,216 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:24,238 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:06:24,239 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:06:24,239 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:06:24,240 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:06:24,241 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:24,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:24,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c051502-568d-4cbe-b6b7-f9ae83c6bb01/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:24,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c051502-568d-4cbe-b6b7-f9ae83c6bb01/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:24,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c051502-568d-4cbe-b6b7-f9ae83c6bb01/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:06:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cosf [2024-10-31 22:06:24,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cosf [2024-10-31 22:06:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:06:24,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-10-31 22:06:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-10-31 22:06:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:06:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-10-31 22:06:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:06:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-10-31 22:06:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sinf [2024-10-31 22:06:24,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sinf [2024-10-31 22:06:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2024-10-31 22:06:24,345 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2024-10-31 22:06:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:06:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2024-10-31 22:06:24,346 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2024-10-31 22:06:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:06:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:06:24,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:06:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:06:24,614 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:06:24,616 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:06:33,523 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2024-10-31 22:06:33,524 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:06:33,557 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:06:33,558 INFO L316 CfgBuilder]: Removed 59 assume(true) statements. [2024-10-31 22:06:33,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:33 BoogieIcfgContainer [2024-10-31 22:06:33,559 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:06:33,563 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:06:33,564 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:06:33,568 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:06:33,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:06:22" (1/3) ... [2024-10-31 22:06:33,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7662c282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:33, skipping insertion in model container [2024-10-31 22:06:33,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (2/3) ... [2024-10-31 22:06:33,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7662c282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:33, skipping insertion in model container [2024-10-31 22:06:33,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:33" (3/3) ... [2024-10-31 22:06:33,575 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0330a.c [2024-10-31 22:06:33,599 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:06:33,600 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:06:33,742 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:06:33,753 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@c1b9d1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:06:33,753 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:06:33,764 INFO L276 IsEmpty]: Start isEmpty. Operand has 289 states, 271 states have (on average 1.6273062730627306) internal successors, (441), 272 states have internal predecessors, (441), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-31 22:06:33,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-31 22:06:33,775 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:33,776 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:33,777 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:33,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:33,787 INFO L85 PathProgramCache]: Analyzing trace with hash -770352565, now seen corresponding path program 1 times [2024-10-31 22:06:33,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:33,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093427074] [2024-10-31 22:06:33,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:33,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:58,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:58,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:58,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093427074] [2024-10-31 22:06:58,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093427074] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:58,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:58,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:58,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115489441] [2024-10-31 22:06:58,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:58,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:06:58,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:58,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:06:58,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:06:58,411 INFO L87 Difference]: Start difference. First operand has 289 states, 271 states have (on average 1.6273062730627306) internal successors, (441), 272 states have internal predecessors, (441), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:58,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:06:58,488 INFO L93 Difference]: Finished difference Result 576 states and 940 transitions. [2024-10-31 22:06:58,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:06:58,491 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-31 22:06:58,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:06:58,502 INFO L225 Difference]: With dead ends: 576 [2024-10-31 22:06:58,503 INFO L226 Difference]: Without dead ends: 286 [2024-10-31 22:06:58,509 INFO L431 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 [2024-10-31 22:06:58,516 INFO L432 NwaCegarLoop]: 405 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, 405 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 [2024-10-31 22:06:58,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:06:58,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-10-31 22:06:58,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2024-10-31 22:06:58,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 269 states have (on average 1.4052044609665428) internal successors, (378), 269 states have internal predecessors, (378), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-31 22:06:58,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 402 transitions. [2024-10-31 22:06:58,598 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 402 transitions. Word has length 10 [2024-10-31 22:06:58,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:06:58,598 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 402 transitions. [2024-10-31 22:06:58,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:58,600 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 402 transitions. [2024-10-31 22:06:58,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 22:06:58,601 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:06:58,601 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:58,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:06:58,602 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:06:58,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:58,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1187199730, now seen corresponding path program 1 times [2024-10-31 22:06:58,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:58,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054947659] [2024-10-31 22:06:58,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:58,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms