./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya --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 1f9d99a1e914bb5db4e356a6920ef9cb10f38df5cae5223ce35a4e418e6502dd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:34:42,656 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:34:42,723 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 05:34:42,731 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:34:42,736 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:34:42,767 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:34:42,768 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:34:42,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:34:42,769 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:34:42,769 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:34:42,770 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:34:42,770 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:34:42,771 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:34:42,772 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:34:42,772 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:34:42,773 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:34:42,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:34:42,774 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:34:42,775 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:34:42,775 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:34:42,776 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:34:42,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:34:42,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:34:42,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:34:42,778 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:34:42,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:34:42,779 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:34:42,779 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:34:42,780 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:34:42,780 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:34:42,781 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:34:42,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:34:42,781 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:34:42,782 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:34:42,782 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:34:42,782 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:34:42,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:34:42,782 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:34:42,783 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:34:42,783 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:34:42,783 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:34:42,783 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:34:42,783 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_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f9d99a1e914bb5db4e356a6920ef9cb10f38df5cae5223ce35a4e418e6502dd [2023-11-29 05:34:42,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:34:43,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:34:43,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:34:43,004 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:34:43,004 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:34:43,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2023-11-29 05:34:45,704 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:34:45,920 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:34:45,920 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2023-11-29 05:34:45,927 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/data/3dba0e4b4/d0950eebb2b34337b87f0099c68e7db4/FLAG237a5bb59 [2023-11-29 05:34:45,942 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/data/3dba0e4b4/d0950eebb2b34337b87f0099c68e7db4 [2023-11-29 05:34:45,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:34:45,946 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:34:45,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:34:45,948 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:34:45,953 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:34:45,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:34:45" (1/1) ... [2023-11-29 05:34:45,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4728a222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:45, skipping insertion in model container [2023-11-29 05:34:45,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:34:45" (1/1) ... [2023-11-29 05:34:45,977 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:34:46,130 WARN L240 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_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c[585,598] [2023-11-29 05:34:46,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:34:46,157 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:34:46,170 WARN L240 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_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c[585,598] [2023-11-29 05:34:46,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:34:46,193 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:34:46,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:46 WrapperNode [2023-11-29 05:34:46,194 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:34:46,195 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:34:46,195 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:34:46,195 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:34:46,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:46" (1/1) ... [2023-11-29 05:34:46,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:46" (1/1) ... [2023-11-29 05:34:46,229 INFO L138 Inliner]: procedures = 18, calls = 17, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 47 [2023-11-29 05:34:46,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:34:46,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:34:46,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:34:46,231 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:34:46,242 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:46" (1/1) ... [2023-11-29 05:34:46,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:46" (1/1) ... [2023-11-29 05:34:46,244 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:46" (1/1) ... [2023-11-29 05:34:46,262 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2023-11-29 05:34:46,263 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:46" (1/1) ... [2023-11-29 05:34:46,263 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:46" (1/1) ... [2023-11-29 05:34:46,269 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:46" (1/1) ... [2023-11-29 05:34:46,271 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:46" (1/1) ... [2023-11-29 05:34:46,272 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:46" (1/1) ... [2023-11-29 05:34:46,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:46" (1/1) ... [2023-11-29 05:34:46,274 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:34:46,275 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:34:46,275 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:34:46,276 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:34:46,276 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:46" (1/1) ... [2023-11-29 05:34:46,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:34:46,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:34:46,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:34:46,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:34:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:34:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:34:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 05:34:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:34:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-29 05:34:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-29 05:34:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 05:34:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 05:34:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-29 05:34:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-29 05:34:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:34:46,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:34:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 05:34:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 05:34:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:34:46,419 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:34:46,421 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:34:46,522 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:34:46,552 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:34:46,552 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 05:34:46,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:34:46 BoogieIcfgContainer [2023-11-29 05:34:46,553 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:34:46,555 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:34:46,556 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:34:46,559 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:34:46,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:34:45" (1/3) ... [2023-11-29 05:34:46,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50192add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:34:46, skipping insertion in model container [2023-11-29 05:34:46,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:46" (2/3) ... [2023-11-29 05:34:46,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50192add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:34:46, skipping insertion in model container [2023-11-29 05:34:46,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:34:46" (3/3) ... [2023-11-29 05:34:46,562 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c [2023-11-29 05:34:46,580 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:34:46,580 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 05:34:46,619 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:34:46,625 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=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;@241810ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:34:46,625 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 05:34:46,630 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 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) [2023-11-29 05:34:46,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 05:34:46,636 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:34:46,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 05:34:46,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:34:46,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:34:46,643 INFO L85 PathProgramCache]: Analyzing trace with hash 53741492, now seen corresponding path program 1 times [2023-11-29 05:34:46,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:34:46,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409168263] [2023-11-29 05:34:46,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:34:46,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:34:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:46,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:34:46,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:34:46,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409168263] [2023-11-29 05:34:46,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409168263] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:34:46,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:34:46,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:34:46,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121329822] [2023-11-29 05:34:46,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:34:46,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 05:34:46,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:34:46,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 05:34:46,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:34:46,835 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-29 05:34:46,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:34:46,861 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2023-11-29 05:34:46,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 05:34:46,864 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-11-29 05:34:46,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:34:46,871 INFO L225 Difference]: With dead ends: 14 [2023-11-29 05:34:46,871 INFO L226 Difference]: Without dead ends: 6 [2023-11-29 05:34:46,873 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 [2023-11-29 05:34:46,877 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:34:46,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:34:46,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2023-11-29 05:34:46,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2023-11-29 05:34:46,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) [2023-11-29 05:34:46,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2023-11-29 05:34:46,903 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 5 [2023-11-29 05:34:46,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:34:46,903 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2023-11-29 05:34:46,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-29 05:34:46,903 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2023-11-29 05:34:46,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 05:34:46,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:34:46,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 05:34:46,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:34:46,904 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:34:46,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:34:46,905 INFO L85 PathProgramCache]: Analyzing trace with hash 53801074, now seen corresponding path program 1 times [2023-11-29 05:34:46,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:34:46,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100642624] [2023-11-29 05:34:46,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:34:46,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:34:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:34:46,940 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:34:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:34:46,970 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:34:46,970 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 05:34:46,972 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 05:34:46,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:34:46,977 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-29 05:34:46,980 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:34:46,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:34:46 BoogieIcfgContainer [2023-11-29 05:34:46,994 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:34:46,995 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:34:46,995 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:34:46,995 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:34:46,995 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:34:46" (3/4) ... [2023-11-29 05:34:46,997 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 05:34:46,997 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:34:46,998 INFO L158 Benchmark]: Toolchain (without parser) took 1051.95ms. Allocated memory is still 165.7MB. Free memory was 132.6MB in the beginning and 127.1MB in the end (delta: 5.6MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2023-11-29 05:34:46,998 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 111.1MB. Free memory is still 59.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:34:46,999 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.81ms. Allocated memory is still 165.7MB. Free memory was 132.6MB in the beginning and 122.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 05:34:47,000 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.45ms. Allocated memory is still 165.7MB. Free memory was 121.7MB in the beginning and 120.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:34:47,000 INFO L158 Benchmark]: Boogie Preprocessor took 44.31ms. Allocated memory is still 165.7MB. Free memory was 120.5MB in the beginning and 118.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:34:47,001 INFO L158 Benchmark]: RCFGBuilder took 277.66ms. Allocated memory is still 165.7MB. Free memory was 118.4MB in the beginning and 107.0MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 05:34:47,001 INFO L158 Benchmark]: TraceAbstraction took 438.62ms. Allocated memory is still 165.7MB. Free memory was 106.1MB in the beginning and 128.1MB in the end (delta: -22.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:34:47,002 INFO L158 Benchmark]: Witness Printer took 2.92ms. Allocated memory is still 165.7MB. Free memory was 128.1MB in the beginning and 127.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:34:47,005 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 111.1MB. Free memory is still 59.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.81ms. Allocated memory is still 165.7MB. Free memory was 132.6MB in the beginning and 122.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.45ms. Allocated memory is still 165.7MB. Free memory was 121.7MB in the beginning and 120.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.31ms. Allocated memory is still 165.7MB. Free memory was 120.5MB in the beginning and 118.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 277.66ms. Allocated memory is still 165.7MB. Free memory was 118.4MB in the beginning and 107.0MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 438.62ms. Allocated memory is still 165.7MB. Free memory was 106.1MB in the beginning and 128.1MB in the end (delta: -22.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.92ms. Allocated memory is still 165.7MB. Free memory was 128.1MB in the beginning and 127.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. 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: 13]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 52, overapproximation of someBinaryDOUBLEComparisonOperation at line 52, overapproximation of someBinaryArithmeticFLOAToperation at line 22. Possible FailurePath: [L45] float a,r; [L47] a = __VERIFIER_nondet_float() [L48] CALL assume_abort_if_not(a >= 0.1f && a <= 100.f) [L11] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L48] RET assume_abort_if_not(a >= 0.1f && a <= 100.f) [L50] CALL, EXPR InvSqrt(a) [L22] float xhalf = 0.5f*x; [L23] union float_int i; [L24] i.f = x [L25] EXPR i.i [L25] i.i = 0x5f3759df - (i.i>>1) [L26] EXPR i.f [L26] x = i.f [L27] x = x*(1.5f-xhalf*x*x) [L28] return x; [L28] return x; [L50] RET, EXPR InvSqrt(a) [L50] r = InvSqrt(a) [L52] CALL __VERIFIER_assert(r >= 0.f && r <= 10.) [L13] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L13] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 05:34:47,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya --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 1f9d99a1e914bb5db4e356a6920ef9cb10f38df5cae5223ce35a4e418e6502dd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:34:48,970 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:34:49,040 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 05:34:49,047 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:34:49,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:34:49,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:34:49,079 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:34:49,079 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:34:49,080 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:34:49,080 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:34:49,081 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:34:49,082 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:34:49,082 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:34:49,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:34:49,084 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:34:49,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:34:49,085 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:34:49,085 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:34:49,086 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:34:49,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:34:49,087 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:34:49,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:34:49,088 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:34:49,089 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 05:34:49,089 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 05:34:49,089 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 05:34:49,090 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:34:49,090 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:34:49,091 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:34:49,091 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:34:49,092 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:34:49,092 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:34:49,092 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:34:49,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:34:49,093 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:34:49,093 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:34:49,093 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:34:49,094 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 05:34:49,094 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 05:34:49,094 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:34:49,094 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:34:49,095 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:34:49,095 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:34:49,095 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:34:49,095 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 05:34:49,095 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_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f9d99a1e914bb5db4e356a6920ef9cb10f38df5cae5223ce35a4e418e6502dd [2023-11-29 05:34:49,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:34:49,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:34:49,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:34:49,396 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:34:49,397 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:34:49,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2023-11-29 05:34:52,206 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:34:52,382 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:34:52,382 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2023-11-29 05:34:52,390 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/data/e4f78b63f/ed552e788f724b09a3629eff5d9082a9/FLAG2a1c51784 [2023-11-29 05:34:52,405 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/data/e4f78b63f/ed552e788f724b09a3629eff5d9082a9 [2023-11-29 05:34:52,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:34:52,410 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:34:52,411 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:34:52,411 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:34:52,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:34:52,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:34:52" (1/1) ... [2023-11-29 05:34:52,417 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e31db02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:52, skipping insertion in model container [2023-11-29 05:34:52,418 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:34:52" (1/1) ... [2023-11-29 05:34:52,435 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:34:52,573 WARN L240 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_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c[585,598] [2023-11-29 05:34:52,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:34:52,599 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:34:52,609 WARN L240 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_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c[585,598] [2023-11-29 05:34:52,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:34:52,633 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:34:52,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:52 WrapperNode [2023-11-29 05:34:52,633 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:34:52,634 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:34:52,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:34:52,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:34:52,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:52" (1/1) ... [2023-11-29 05:34:52,649 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:52" (1/1) ... [2023-11-29 05:34:52,669 INFO L138 Inliner]: procedures = 21, calls = 17, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 48 [2023-11-29 05:34:52,669 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:34:52,670 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:34:52,670 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:34:52,670 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:34:52,679 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:52" (1/1) ... [2023-11-29 05:34:52,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:52" (1/1) ... [2023-11-29 05:34:52,683 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:52" (1/1) ... [2023-11-29 05:34:52,696 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2023-11-29 05:34:52,696 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:52" (1/1) ... [2023-11-29 05:34:52,696 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:52" (1/1) ... [2023-11-29 05:34:52,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:52" (1/1) ... [2023-11-29 05:34:52,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:52" (1/1) ... [2023-11-29 05:34:52,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:52" (1/1) ... [2023-11-29 05:34:52,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:52" (1/1) ... [2023-11-29 05:34:52,716 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:34:52,717 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:34:52,718 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:34:52,718 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:34:52,719 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:52" (1/1) ... [2023-11-29 05:34:52,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:34:52,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:34:52,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:34:52,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:34:52,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:34:52,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 05:34:52,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 05:34:52,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:34:52,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-11-29 05:34:52,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-11-29 05:34:52,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 05:34:52,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 05:34:52,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:34:52,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:34:52,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-11-29 05:34:52,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-11-29 05:34:52,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:34:52,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 05:34:52,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 05:34:52,890 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:34:52,892 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:34:56,865 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:34:56,903 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:34:56,904 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 05:34:56,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:34:56 BoogieIcfgContainer [2023-11-29 05:34:56,904 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:34:56,907 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:34:56,907 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:34:56,910 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:34:56,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:34:52" (1/3) ... [2023-11-29 05:34:56,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1880bfd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:34:56, skipping insertion in model container [2023-11-29 05:34:56,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:34:52" (2/3) ... [2023-11-29 05:34:56,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1880bfd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:34:56, skipping insertion in model container [2023-11-29 05:34:56,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:34:56" (3/3) ... [2023-11-29 05:34:56,913 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c [2023-11-29 05:34:56,927 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:34:56,927 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 05:34:56,972 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:34:56,978 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=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;@1245d8e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:34:56,978 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 05:34:56,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 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) [2023-11-29 05:34:56,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 05:34:56,986 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:34:56,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 05:34:56,987 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:34:56,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:34:56,992 INFO L85 PathProgramCache]: Analyzing trace with hash 53741492, now seen corresponding path program 1 times [2023-11-29 05:34:57,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:34:57,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82989123] [2023-11-29 05:34:57,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:34:57,002 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 [2023-11-29 05:34:57,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:34:57,004 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 05:34:57,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:34:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:34:57,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 05:34:57,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:34:57,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:34:57,267 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:34:57,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:34:57,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82989123] [2023-11-29 05:34:57,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82989123] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:34:57,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:34:57,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:34:57,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110230833] [2023-11-29 05:34:57,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:34:57,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 05:34:57,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:34:57,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 05:34:57,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:34:57,306 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-29 05:35:01,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:35:01,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:35:01,469 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2023-11-29 05:35:01,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 05:35:01,471 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-11-29 05:35:01,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:35:01,476 INFO L225 Difference]: With dead ends: 14 [2023-11-29 05:35:01,476 INFO L226 Difference]: Without dead ends: 6 [2023-11-29 05:35:01,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:35:01,481 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:35:01,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-11-29 05:35:01,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2023-11-29 05:35:01,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2023-11-29 05:35:01,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) [2023-11-29 05:35:01,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2023-11-29 05:35:01,502 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 5 [2023-11-29 05:35:01,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:35:01,503 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2023-11-29 05:35:01,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-29 05:35:01,503 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2023-11-29 05:35:01,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 05:35:01,503 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:35:01,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 05:35:01,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:35:01,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:35:01,704 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:35:01,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:35:01,705 INFO L85 PathProgramCache]: Analyzing trace with hash 53801074, now seen corresponding path program 1 times [2023-11-29 05:35:01,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:35:01,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390165582] [2023-11-29 05:35:01,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:35:01,706 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 [2023-11-29 05:35:01,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:35:01,708 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 05:35:01,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:35:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:35:02,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 05:35:02,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:35:19,280 WARN L293 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:35:27,355 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:35:35,523 WARN L293 SmtUtils]: Spent 8.17s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:35:47,613 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:35:55,734 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:36:03,859 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:36:16,049 WARN L293 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:36:24,234 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:36:32,383 WARN L293 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:36:40,553 WARN L293 SmtUtils]: Spent 8.17s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:36:44,660 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (.cse7 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0))) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (or (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_7|)))) (and (fp.leq .cse0 .cse1) (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse2 (let ((.cse5 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_7| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse0) .cse2) .cse2))))) .cse6)) (fp.geq .cse0 .cse7)))) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 32))) (let ((.cse9 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_7|)))) (and (not (fp.geq (let ((.cse8 (let ((.cse10 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_7| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul roundNearestTiesToEven .cse8 (fp.sub roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse9) .cse8) .cse8)))) (_ +zero 8 24))) (fp.leq .cse9 .cse1) (fp.geq .cse9 .cse7)))))) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 32))) (let ((.cse12 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_7|)))) (let ((.cse11 (let ((.cse13 (let ((.cse14 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_7| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse14) ((_ extract 30 23) .cse14) ((_ extract 22 0) .cse14))))) (fp.mul roundNearestTiesToEven .cse13 (fp.sub roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse12) .cse13) .cse13)))))) (and (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse11) .cse6) (fp.leq .cse12 .cse1) (fp.geq .cse12 .cse7) (fp.geq .cse11 (_ +zero 8 24))))))))) is different from false [2023-11-29 05:36:56,888 WARN L293 SmtUtils]: Spent 8.17s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:37:04,972 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:37:13,148 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:37:25,242 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:37:33,436 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:37:41,564 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:37:45,637 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0))) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (.cse6 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0)))) (or (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_7|)))) (and (fp.leq .cse0 .cse1) (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse2 (let ((.cse5 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_7| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse0) .cse2) .cse2))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.geq .cse0 .cse6)))) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 32))) (let ((.cse8 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_7|)))) (and (not (fp.geq (let ((.cse7 (let ((.cse9 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_7| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse9) ((_ extract 30 23) .cse9) ((_ extract 22 0) .cse9))))) (fp.mul roundNearestTiesToEven .cse7 (fp.sub roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse8) .cse7) .cse7)))) (_ +zero 8 24))) (fp.leq .cse8 .cse1) (fp.geq .cse8 .cse6)))))) is different from false [2023-11-29 05:37:49,663 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0))) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (.cse6 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0)))) (or (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_7|)))) (and (fp.leq .cse0 .cse1) (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse2 (let ((.cse5 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_7| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse0) .cse2) .cse2))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.geq .cse0 .cse6)))) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 32))) (let ((.cse8 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_7|)))) (and (not (fp.geq (let ((.cse7 (let ((.cse9 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_7| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse9) ((_ extract 30 23) .cse9) ((_ extract 22 0) .cse9))))) (fp.mul roundNearestTiesToEven .cse7 (fp.sub roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse8) .cse7) .cse7)))) (_ +zero 8 24))) (fp.leq .cse8 .cse1) (fp.geq .cse8 .cse6)))))) is different from true [2023-11-29 05:37:49,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:37:49,664 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:37:49,664 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:37:49,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1390165582] [2023-11-29 05:37:49,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1390165582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:37:49,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:37:49,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:37:49,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729539381] [2023-11-29 05:37:49,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:37:49,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:37:49,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:37:49,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:37:49,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=8, Unknown=3, NotChecked=10, Total=30 [2023-11-29 05:37:49,667 INFO L87 Difference]: Start difference. First operand 6 states and 5 transitions. Second operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) [2023-11-29 05:37:53,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:37:57,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:38:02,016 WARN L854 $PredicateComparison]: unable to prove that (and (fp.leq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 8 24) c_currentRoundingMode 100.0)) (let ((.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (.cse7 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0))) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (or (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_7|)))) (and (fp.leq .cse0 .cse1) (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse2 (let ((.cse5 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_7| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse0) .cse2) .cse2))))) .cse6)) (fp.geq .cse0 .cse7)))) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 32))) (let ((.cse9 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_7|)))) (and (not (fp.geq (let ((.cse8 (let ((.cse10 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_7| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul roundNearestTiesToEven .cse8 (fp.sub roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse9) .cse8) .cse8)))) (_ +zero 8 24))) (fp.leq .cse9 .cse1) (fp.geq .cse9 .cse7)))))) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 32))) (let ((.cse12 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_7|)))) (let ((.cse11 (let ((.cse13 (let ((.cse14 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_7| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse14) ((_ extract 30 23) .cse14) ((_ extract 22 0) .cse14))))) (fp.mul roundNearestTiesToEven .cse13 (fp.sub roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse12) .cse13) .cse13)))))) (and (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse11) .cse6) (fp.leq .cse12 .cse1) (fp.geq .cse12 .cse7) (fp.geq .cse11 (_ +zero 8 24))))))))) (fp.geq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2023-11-29 05:38:06,692 WARN L876 $PredicateComparison]: unable to prove that (and (fp.leq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 8 24) c_currentRoundingMode 100.0)) (let ((.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (.cse7 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0))) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (or (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_7|)))) (and (fp.leq .cse0 .cse1) (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse2 (let ((.cse5 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_7| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse0) .cse2) .cse2))))) .cse6)) (fp.geq .cse0 .cse7)))) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 32))) (let ((.cse9 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_7|)))) (and (not (fp.geq (let ((.cse8 (let ((.cse10 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_7| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul roundNearestTiesToEven .cse8 (fp.sub roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse9) .cse8) .cse8)))) (_ +zero 8 24))) (fp.leq .cse9 .cse1) (fp.geq .cse9 .cse7)))))) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 32))) (let ((.cse12 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_7|)))) (let ((.cse11 (let ((.cse13 (let ((.cse14 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_7| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse14) ((_ extract 30 23) .cse14) ((_ extract 22 0) .cse14))))) (fp.mul roundNearestTiesToEven .cse13 (fp.sub roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse12) .cse13) .cse13)))))) (and (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse11) .cse6) (fp.leq .cse12 .cse1) (fp.geq .cse12 .cse7) (fp.geq .cse11 (_ +zero 8 24))))))))) (fp.geq |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2023-11-29 05:38:06,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:38:06,694 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2023-11-29 05:38:06,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:38:06,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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 5 [2023-11-29 05:38:06,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:38:06,694 INFO L225 Difference]: With dead ends: 6 [2023-11-29 05:38:06,694 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 05:38:06,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.2s TimeCoverageRelationStatistics Valid=15, Invalid=12, Unknown=5, NotChecked=24, Total=56 [2023-11-29 05:38:06,696 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:38:06,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 2 Unknown, 9 Unchecked, 8.1s Time] [2023-11-29 05:38:06,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 05:38:06,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 05:38:06,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:38:06,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 05:38:06,698 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2023-11-29 05:38:06,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:38:06,698 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:38:06,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) [2023-11-29 05:38:06,698 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 05:38:06,699 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 05:38:06,700 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 05:38:06,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/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)] Ended with exit code 0 [2023-11-29 05:38:06,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:38:06,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 05:38:06,905 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 05:38:06,905 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2023-11-29 05:38:06,905 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2023-11-29 05:38:06,905 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2023-11-29 05:38:06,905 INFO L899 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2023-11-29 05:38:06,905 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 05:38:06,906 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2023-11-29 05:38:06,906 INFO L899 garLoopResultBuilder]: For program point L10(lines 10 12) no Hoare annotation was computed. [2023-11-29 05:38:06,908 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-29 05:38:06,910 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:38:06,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:38:06 BoogieIcfgContainer [2023-11-29 05:38:06,914 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:38:06,914 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:38:06,914 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:38:06,914 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:38:06,915 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:34:56" (3/4) ... [2023-11-29 05:38:06,917 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 05:38:06,924 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-29 05:38:06,924 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-29 05:38:06,924 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 05:38:06,925 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 05:38:07,004 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 05:38:07,005 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 05:38:07,005 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:38:07,006 INFO L158 Benchmark]: Toolchain (without parser) took 194596.03ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 37.9MB in the beginning and 41.9MB in the end (delta: -4.0MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2023-11-29 05:38:07,006 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 69.2MB. Free memory is still 46.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:38:07,006 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.69ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 37.8MB in the beginning and 67.4MB in the end (delta: -29.7MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2023-11-29 05:38:07,007 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.35ms. Allocated memory is still 92.3MB. Free memory was 67.4MB in the beginning and 65.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:38:07,007 INFO L158 Benchmark]: Boogie Preprocessor took 46.59ms. Allocated memory is still 92.3MB. Free memory was 65.7MB in the beginning and 63.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:38:07,008 INFO L158 Benchmark]: RCFGBuilder took 4186.84ms. Allocated memory is still 92.3MB. Free memory was 63.3MB in the beginning and 50.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 05:38:07,008 INFO L158 Benchmark]: TraceAbstraction took 190006.33ms. Allocated memory is still 92.3MB. Free memory was 49.8MB in the beginning and 46.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2023-11-29 05:38:07,008 INFO L158 Benchmark]: Witness Printer took 90.79ms. Allocated memory is still 92.3MB. Free memory was 46.6MB in the beginning and 41.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:38:07,010 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 69.2MB. Free memory is still 46.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 222.69ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 37.8MB in the beginning and 67.4MB in the end (delta: -29.7MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.35ms. Allocated memory is still 92.3MB. Free memory was 67.4MB in the beginning and 65.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.59ms. Allocated memory is still 92.3MB. Free memory was 65.7MB in the beginning and 63.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 4186.84ms. Allocated memory is still 92.3MB. Free memory was 63.3MB in the beginning and 50.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 190006.33ms. Allocated memory is still 92.3MB. Free memory was 49.8MB in the beginning and 46.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * Witness Printer took 90.79ms. Allocated memory is still 92.3MB. Free memory was 46.6MB in the beginning and 41.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 13]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 189.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 12.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 12.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 9 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 167.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 2 QuantifiedInterpolants, 747 SizeOfPredicates, 9 NumberOfNonLiveVariables, 66 ConjunctsInSsa, 13 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 05:38:07,220 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-11-29 05:38:07,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6e31dd-b258-47c3-9fd7-0fb5f38cc5ce/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE