./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 572c7cb96a3cac2508d636eadb6e6d621d12dc30df0412537cec32d2105ec801 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:01:45,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:01:45,732 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 23:01:45,748 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:01:45,748 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:01:45,781 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:01:45,782 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:01:45,783 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:01:45,784 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:01:45,784 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:01:45,785 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:01:45,786 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:01:45,786 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:01:45,787 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:01:45,787 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:01:45,788 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:01:45,788 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:01:45,789 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:01:45,789 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:01:45,790 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:01:45,790 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:01:45,791 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:01:45,792 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:01:45,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:01:45,792 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:01:45,793 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:01:45,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:01:45,794 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:01:45,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:01:45,795 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:01:45,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:01:45,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:01:45,796 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:01:45,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:01:45,797 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:01:45,797 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:01:45,797 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:01:45,798 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:01:45,798 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:01:45,798 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_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 572c7cb96a3cac2508d636eadb6e6d621d12dc30df0412537cec32d2105ec801 [2023-11-06 23:01:46,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:01:46,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:01:46,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:01:46,159 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:01:46,160 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:01:46,161 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2023-11-06 23:01:49,311 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:01:49,587 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:01:49,589 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2023-11-06 23:01:49,599 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/data/55c1b3e5a/a78beaedc7d74985801a630f8e334990/FLAG1fbf30afa [2023-11-06 23:01:49,621 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/data/55c1b3e5a/a78beaedc7d74985801a630f8e334990 [2023-11-06 23:01:49,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:01:49,630 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:01:49,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:01:49,632 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:01:49,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:01:49,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:01:49" (1/1) ... [2023-11-06 23:01:49,647 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@777092c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:49, skipping insertion in model container [2023-11-06 23:01:49,647 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:01:49" (1/1) ... [2023-11-06 23:01:49,683 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:01:49,883 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_8aa615a8-c709-43fc-8803-19821baa4f1a/sv-benchmarks/c/float-newlib/float_req_bl_0740.c[1930,1943] [2023-11-06 23:01:49,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:01:49,899 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:01:49,927 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_8aa615a8-c709-43fc-8803-19821baa4f1a/sv-benchmarks/c/float-newlib/float_req_bl_0740.c[1930,1943] [2023-11-06 23:01:49,928 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:01:49,944 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:01:49,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:49 WrapperNode [2023-11-06 23:01:49,944 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:01:49,946 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:01:49,946 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:01:49,946 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:01:49,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:49" (1/1) ... [2023-11-06 23:01:49,965 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:49" (1/1) ... [2023-11-06 23:01:49,997 INFO L138 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 136 [2023-11-06 23:01:49,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:01:49,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:01:49,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:01:49,998 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:01:50,008 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:49" (1/1) ... [2023-11-06 23:01:50,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:49" (1/1) ... [2023-11-06 23:01:50,011 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:49" (1/1) ... [2023-11-06 23:01:50,012 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:49" (1/1) ... [2023-11-06 23:01:50,019 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:49" (1/1) ... [2023-11-06 23:01:50,025 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:49" (1/1) ... [2023-11-06 23:01:50,037 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:49" (1/1) ... [2023-11-06 23:01:50,038 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:49" (1/1) ... [2023-11-06 23:01:50,041 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:01:50,042 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:01:50,043 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:01:50,043 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:01:50,044 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:49" (1/1) ... [2023-11-06 23:01:50,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:01:50,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:01:50,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:01:50,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:01:50,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:01:50,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:01:50,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:01:50,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-06 23:01:50,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:01:50,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-06 23:01:50,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:01:50,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:01:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:01:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:01:50,298 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:01:50,300 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:01:50,546 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:01:50,553 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:01:50,553 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-06 23:01:50,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:01:50 BoogieIcfgContainer [2023-11-06 23:01:50,556 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:01:50,559 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:01:50,559 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:01:50,563 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:01:50,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:01:49" (1/3) ... [2023-11-06 23:01:50,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46681cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:01:50, skipping insertion in model container [2023-11-06 23:01:50,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:49" (2/3) ... [2023-11-06 23:01:50,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46681cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:01:50, skipping insertion in model container [2023-11-06 23:01:50,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:01:50" (3/3) ... [2023-11-06 23:01:50,567 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740.c [2023-11-06 23:01:50,588 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:01:50,588 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 23:01:50,659 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:01:50,666 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@63fa5d18, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:01:50,666 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 23:01:50,670 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.6388888888888888) internal successors, (59), 37 states have internal predecessors, (59), 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) [2023-11-06 23:01:50,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 23:01:50,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:50,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:50,677 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:50,681 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:50,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1903026384, now seen corresponding path program 1 times [2023-11-06 23:01:50,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:50,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190986925] [2023-11-06 23:01:50,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:50,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:50,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:50,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:50,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190986925] [2023-11-06 23:01:50,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190986925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:50,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:50,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:01:50,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167366802] [2023-11-06 23:01:50,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:50,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 23:01:50,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:50,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 23:01:50,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:01:50,958 INFO L87 Difference]: Start difference. First operand has 38 states, 36 states have (on average 1.6388888888888888) internal successors, (59), 37 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:50,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:50,990 INFO L93 Difference]: Finished difference Result 74 states and 116 transitions. [2023-11-06 23:01:50,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 23:01:50,992 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-06 23:01:50,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:51,002 INFO L225 Difference]: With dead ends: 74 [2023-11-06 23:01:51,002 INFO L226 Difference]: Without dead ends: 35 [2023-11-06 23:01:51,006 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 [2023-11-06 23:01:51,012 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:51,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:01:51,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-06 23:01:51,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-06 23:01:51,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.411764705882353) internal successors, (48), 34 states have internal predecessors, (48), 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) [2023-11-06 23:01:51,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2023-11-06 23:01:51,060 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 9 [2023-11-06 23:01:51,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:51,061 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2023-11-06 23:01:51,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:51,061 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2023-11-06 23:01:51,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 23:01:51,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:51,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:51,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:01:51,064 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:51,066 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:51,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1485324429, now seen corresponding path program 1 times [2023-11-06 23:01:51,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:51,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165182097] [2023-11-06 23:01:51,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:51,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:51,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:01:51,175 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:01:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:01:51,264 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:01:51,264 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 23:01:51,267 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 23:01:51,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:01:51,274 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 23:01:51,279 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 23:01:51,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:01:51 BoogieIcfgContainer [2023-11-06 23:01:51,314 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 23:01:51,315 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:01:51,316 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:01:51,316 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:01:51,317 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:01:50" (3/4) ... [2023-11-06 23:01:51,319 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 23:01:51,321 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:01:51,322 INFO L158 Benchmark]: Toolchain (without parser) took 1691.95ms. Allocated memory is still 144.7MB. Free memory was 111.6MB in the beginning and 77.5MB in the end (delta: 34.2MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2023-11-06 23:01:51,322 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:01:51,324 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.20ms. Allocated memory is still 144.7MB. Free memory was 111.5MB in the beginning and 99.7MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 23:01:51,327 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.60ms. Allocated memory is still 144.7MB. Free memory was 99.7MB in the beginning and 97.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:01:51,328 INFO L158 Benchmark]: Boogie Preprocessor took 43.79ms. Allocated memory is still 144.7MB. Free memory was 97.6MB in the beginning and 96.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:01:51,331 INFO L158 Benchmark]: RCFGBuilder took 513.34ms. Allocated memory is still 144.7MB. Free memory was 96.2MB in the beginning and 105.5MB in the end (delta: -9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 23:01:51,332 INFO L158 Benchmark]: TraceAbstraction took 755.78ms. Allocated memory is still 144.7MB. Free memory was 104.7MB in the beginning and 78.1MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-06 23:01:51,333 INFO L158 Benchmark]: Witness Printer took 6.22ms. Allocated memory is still 144.7MB. Free memory was 78.1MB in the beginning and 77.5MB in the end (delta: 661.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:01:51,340 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.20ms. Allocated memory is still 144.7MB. Free memory was 111.5MB in the beginning and 99.7MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.60ms. Allocated memory is still 144.7MB. Free memory was 99.7MB in the beginning and 97.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.79ms. Allocated memory is still 144.7MB. Free memory was 97.6MB in the beginning and 96.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 513.34ms. Allocated memory is still 144.7MB. Free memory was 96.2MB in the beginning and 105.5MB in the end (delta: -9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 755.78ms. Allocated memory is still 144.7MB. Free memory was 104.7MB in the beginning and 78.1MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 6.22ms. Allocated memory is still 144.7MB. Free memory was 78.1MB in the beginning and 77.5MB in the end (delta: 661.0kB). 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: 99]: 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 15, overapproximation of someBinaryArithmeticFLOAToperation at line 32. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L93] float x = -1.0f / 0.0f; [L95] CALL, EXPR __ieee754_sqrtf(x) [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [\old(x)=4286578697, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578697] [L25] ieee_float_shape_type gf_u; [L26] EXPR gf_u.value = (x) [L27] EXPR gf_u.word [L27] EXPR (ix) = gf_u.word [L24-L28] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [\old(x)=4286578697, ix=-8388608, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578697] [L29] hx = ix & 0x7fffffff VAL [\old(x)=4286578697, hx=2139095040, ix=-8388608, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578697] [L31] COND TRUE !((hx) < 0x7f800000L) [L32] return x * x + x; VAL [\old(x)=4286578697, hx=2139095040, ix=-8388608, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578697] [L95] RET, EXPR __ieee754_sqrtf(x) [L95] float res = __ieee754_sqrtf(x); [L98] CALL, EXPR isnan_float(res) [L15] return x != x; VAL [\old(x)=4286578696, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4286578696] [L98] RET, EXPR isnan_float(res) [L98] COND TRUE !isnan_float(res) [L99] reach_error() VAL [one_sqrt=1, res=4286578696, tiny_sqrt=1/1000000000000000000000000000000, x=4286578697] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 51 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 [2023-11-06 23:01:51,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 572c7cb96a3cac2508d636eadb6e6d621d12dc30df0412537cec32d2105ec801 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:01:53,962 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:01:54,066 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 23:01:54,077 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:01:54,078 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:01:54,124 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:01:54,124 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:01:54,125 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:01:54,126 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:01:54,126 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:01:54,127 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:01:54,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:01:54,132 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:01:54,137 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:01:54,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:01:54,138 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:01:54,139 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:01:54,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:01:54,141 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:01:54,141 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:01:54,141 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:01:54,142 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 23:01:54,142 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 23:01:54,143 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 23:01:54,143 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:01:54,144 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:01:54,144 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:01:54,145 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:01:54,145 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:01:54,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:01:54,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:01:54,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:01:54,147 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:01:54,147 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:01:54,148 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 23:01:54,148 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 23:01:54,148 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:01:54,148 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:01:54,149 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:01:54,150 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:01:54,150 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 23:01:54,150 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:01:54,151 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_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 572c7cb96a3cac2508d636eadb6e6d621d12dc30df0412537cec32d2105ec801 [2023-11-06 23:01:54,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:01:54,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:01:54,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:01:54,638 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:01:54,640 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:01:54,642 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2023-11-06 23:01:57,833 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:01:58,133 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:01:58,135 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2023-11-06 23:01:58,150 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/data/8cdf2023b/572468b912744bd2aafa798374cea161/FLAGcecc84ca0 [2023-11-06 23:01:58,170 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/data/8cdf2023b/572468b912744bd2aafa798374cea161 [2023-11-06 23:01:58,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:01:58,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:01:58,186 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:01:58,186 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:01:58,193 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:01:58,194 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:01:58" (1/1) ... [2023-11-06 23:01:58,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50f515a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:58, skipping insertion in model container [2023-11-06 23:01:58,195 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:01:58" (1/1) ... [2023-11-06 23:01:58,225 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:01:58,415 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_8aa615a8-c709-43fc-8803-19821baa4f1a/sv-benchmarks/c/float-newlib/float_req_bl_0740.c[1930,1943] [2023-11-06 23:01:58,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:01:58,437 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:01:58,468 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_8aa615a8-c709-43fc-8803-19821baa4f1a/sv-benchmarks/c/float-newlib/float_req_bl_0740.c[1930,1943] [2023-11-06 23:01:58,470 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:01:58,489 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:01:58,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:58 WrapperNode [2023-11-06 23:01:58,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:01:58,491 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:01:58,491 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:01:58,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:01:58,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:58" (1/1) ... [2023-11-06 23:01:58,515 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:58" (1/1) ... [2023-11-06 23:01:58,551 INFO L138 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 115 [2023-11-06 23:01:58,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:01:58,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:01:58,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:01:58,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:01:58,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:58" (1/1) ... [2023-11-06 23:01:58,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:58" (1/1) ... [2023-11-06 23:01:58,581 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:58" (1/1) ... [2023-11-06 23:01:58,583 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:58" (1/1) ... [2023-11-06 23:01:58,595 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:58" (1/1) ... [2023-11-06 23:01:58,615 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:58" (1/1) ... [2023-11-06 23:01:58,624 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:58" (1/1) ... [2023-11-06 23:01:58,641 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:58" (1/1) ... [2023-11-06 23:01:58,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:01:58,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:01:58,647 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:01:58,647 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:01:58,648 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:58" (1/1) ... [2023-11-06 23:01:58,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:01:58,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:01:58,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:01:58,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:01:58,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:01:58,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 23:01:58,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:01:58,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-06 23:01:58,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 23:01:58,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:01:58,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:01:58,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-06 23:01:58,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 23:01:58,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:01:58,818 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:01:58,820 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:01:59,897 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:01:59,904 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:01:59,904 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-06 23:01:59,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:01:59 BoogieIcfgContainer [2023-11-06 23:01:59,906 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:01:59,909 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:01:59,909 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:01:59,913 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:01:59,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:01:58" (1/3) ... [2023-11-06 23:01:59,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cac297e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:01:59, skipping insertion in model container [2023-11-06 23:01:59,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:58" (2/3) ... [2023-11-06 23:01:59,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cac297e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:01:59, skipping insertion in model container [2023-11-06 23:01:59,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:01:59" (3/3) ... [2023-11-06 23:01:59,916 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740.c [2023-11-06 23:01:59,934 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:01:59,934 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 23:01:59,984 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:01:59,990 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@364ecb1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:01:59,990 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 23:01:59,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 32 states have internal predecessors, (50), 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) [2023-11-06 23:02:00,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 23:02:00,000 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:02:00,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:02:00,001 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:02:00,007 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:02:00,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2023-11-06 23:02:00,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:02:00,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1808628165] [2023-11-06 23:02:00,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:02:00,023 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 [2023-11-06 23:02:00,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:02:00,033 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:02:00,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:02:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:00,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 23:02:00,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:02:00,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:02:00,261 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:02:00,262 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:02:00,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1808628165] [2023-11-06 23:02:00,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1808628165] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:02:00,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:02:00,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:02:00,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650239818] [2023-11-06 23:02:00,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:02:00,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 23:02:00,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:02:00,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 23:02:00,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:02:00,303 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 32 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:00,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:02:00,321 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2023-11-06 23:02:00,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 23:02:00,324 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-06 23:02:00,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:02:00,331 INFO L225 Difference]: With dead ends: 64 [2023-11-06 23:02:00,332 INFO L226 Difference]: Without dead ends: 30 [2023-11-06 23:02:00,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:02:00,338 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:02:00,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:02:00,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-06 23:02:00,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-11-06 23:02:00,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 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) [2023-11-06 23:02:00,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2023-11-06 23:02:00,376 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2023-11-06 23:02:00,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:02:00,376 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2023-11-06 23:02:00,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:00,377 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2023-11-06 23:02:00,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 23:02:00,377 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:02:00,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:02:00,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:02:00,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:02:00,593 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:02:00,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:02:00,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2023-11-06 23:02:00,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:02:00,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613399053] [2023-11-06 23:02:00,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:02:00,595 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 [2023-11-06 23:02:00,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:02:00,597 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:02:00,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:02:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:00,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 23:02:00,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:02:01,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:02:01,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:02:01,083 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:02:01,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613399053] [2023-11-06 23:02:01,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613399053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:02:01,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:02:01,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 23:02:01,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028728809] [2023-11-06 23:02:01,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:02:01,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 23:02:01,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:02:01,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 23:02:01,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:02:01,087 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:02,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:02:02,059 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2023-11-06 23:02:02,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:02:02,060 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-06 23:02:02,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:02:02,061 INFO L225 Difference]: With dead ends: 35 [2023-11-06 23:02:02,061 INFO L226 Difference]: Without dead ends: 30 [2023-11-06 23:02:02,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-06 23:02:02,064 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 40 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 23:02:02,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 125 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 23:02:02,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-06 23:02:02,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-11-06 23:02:02,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 29 states have internal predecessors, (38), 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) [2023-11-06 23:02:02,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2023-11-06 23:02:02,073 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 10 [2023-11-06 23:02:02,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:02:02,074 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2023-11-06 23:02:02,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:02:02,074 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2023-11-06 23:02:02,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-06 23:02:02,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:02:02,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:02:02,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 23:02:02,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:02:02,294 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:02:02,295 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:02:02,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1245605874, now seen corresponding path program 1 times [2023-11-06 23:02:02,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:02:02,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518422390] [2023-11-06 23:02:02,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:02:02,296 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 [2023-11-06 23:02:02,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:02:02,297 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:02:02,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-06 23:02:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:02,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 23:02:02,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:02:02,512 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 23:02:02,519 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2023-11-06 23:02:02,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:02:02,694 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:02:02,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:02:02,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [518422390] [2023-11-06 23:02:02,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [518422390] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:02:02,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:02:02,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 23:02:02,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954942971] [2023-11-06 23:02:02,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:02:02,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:02:02,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:02:02,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:02:02,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:02:02,708 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2023-11-06 23:02:02,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:02:02,856 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2023-11-06 23:02:02,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:02:02,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-06 23:02:02,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:02:02,856 INFO L225 Difference]: With dead ends: 30 [2023-11-06 23:02:02,856 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 23:02:02,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:02:02,858 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:02:02,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:02:02,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 23:02:02,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 23:02:02,860 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) [2023-11-06 23:02:02,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 23:02:02,860 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2023-11-06 23:02:02,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:02:02,861 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 23:02:02,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2023-11-06 23:02:02,861 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 23:02:02,861 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 23:02:02,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 23:02:02,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-06 23:02:03,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:02:03,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 23:02:03,187 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 86 104) the Hoare annotation is: true [2023-11-06 23:02:03,188 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2023-11-06 23:02:03,188 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 23:02:03,188 INFO L899 garLoopResultBuilder]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2023-11-06 23:02:03,188 INFO L895 garLoopResultBuilder]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2023-11-06 23:02:03,188 INFO L899 garLoopResultBuilder]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2023-11-06 23:02:03,188 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 73) no Hoare annotation was computed. [2023-11-06 23:02:03,189 INFO L895 garLoopResultBuilder]: At program point __ieee754_sqrtf_returnLabel#1(lines 19 84) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_sqrtf_#res#1| (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0))) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_sqrtf_~x#1|)) [2023-11-06 23:02:03,189 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 23:02:03,189 INFO L895 garLoopResultBuilder]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2023-11-06 23:02:03,189 INFO L899 garLoopResultBuilder]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2023-11-06 23:02:03,189 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2023-11-06 23:02:03,189 INFO L899 garLoopResultBuilder]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2023-11-06 23:02:03,190 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2023-11-06 23:02:03,190 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 44) no Hoare annotation was computed. [2023-11-06 23:02:03,190 INFO L899 garLoopResultBuilder]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2023-11-06 23:02:03,190 INFO L899 garLoopResultBuilder]: For program point L98(lines 98 101) no Hoare annotation was computed. [2023-11-06 23:02:03,190 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 23:02:03,190 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 61) no Hoare annotation was computed. [2023-11-06 23:02:03,190 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 99) no Hoare annotation was computed. [2023-11-06 23:02:03,191 INFO L899 garLoopResultBuilder]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2023-11-06 23:02:03,191 INFO L899 garLoopResultBuilder]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2023-11-06 23:02:03,191 INFO L895 garLoopResultBuilder]: At program point isnan_float_returnLabel#1(line 15) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_sqrtf_#res#1| (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|)) [2023-11-06 23:02:03,191 INFO L895 garLoopResultBuilder]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_sqrtf_~x#1|)) [2023-11-06 23:02:03,191 INFO L899 garLoopResultBuilder]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2023-11-06 23:02:03,191 INFO L899 garLoopResultBuilder]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2023-11-06 23:02:03,192 INFO L895 garLoopResultBuilder]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2023-11-06 23:02:03,192 INFO L899 garLoopResultBuilder]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2023-11-06 23:02:03,192 INFO L899 garLoopResultBuilder]: For program point L99(line 99) no Hoare annotation was computed. [2023-11-06 23:02:03,192 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 75) no Hoare annotation was computed. [2023-11-06 23:02:03,192 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 23:02:03,192 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 35) no Hoare annotation was computed. [2023-11-06 23:02:03,192 INFO L899 garLoopResultBuilder]: For program point L68(lines 68 74) no Hoare annotation was computed. [2023-11-06 23:02:03,197 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-06 23:02:03,199 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 23:02:03,210 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-06 23:02:03,212 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-06 23:02:03,212 ERROR L462 ceAbstractionStarter]: Failed to backtranslate (and (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_sqrtf_~x#1|)) [2023-11-06 23:02:03,213 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-06 23:02:03,214 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-06 23:02:03,214 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-06 23:02:03,214 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-06 23:02:03,215 ERROR L462 ceAbstractionStarter]: Failed to backtranslate (and (= |ULTIMATE.start___ieee754_sqrtf_#res#1| (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0))) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_sqrtf_~x#1|)) [2023-11-06 23:02:03,215 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-06 23:02:03,216 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-06 23:02:03,216 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-06 23:02:03,216 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-06 23:02:03,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:02:03 BoogieIcfgContainer [2023-11-06 23:02:03,217 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 23:02:03,218 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:02:03,218 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:02:03,218 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:02:03,219 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:01:59" (3/4) ... [2023-11-06 23:02:03,221 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 23:02:03,230 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-06 23:02:03,231 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-06 23:02:03,231 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 23:02:03,232 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 23:02:03,263 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1 == \result) [2023-11-06 23:02:03,289 WARN L115 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1 == \result) [2023-11-06 23:02:03,305 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 23:02:03,306 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 23:02:03,306 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:02:03,307 INFO L158 Benchmark]: Toolchain (without parser) took 5126.14ms. Allocated memory was 79.7MB in the beginning and 119.5MB in the end (delta: 39.8MB). Free memory was 55.8MB in the beginning and 67.9MB in the end (delta: -12.2MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2023-11-06 23:02:03,307 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 79.7MB. Free memory is still 55.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:02:03,308 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.93ms. Allocated memory is still 79.7MB. Free memory was 55.5MB in the beginning and 43.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 23:02:03,308 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.53ms. Allocated memory is still 79.7MB. Free memory was 43.4MB in the beginning and 41.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:02:03,309 INFO L158 Benchmark]: Boogie Preprocessor took 93.75ms. Allocated memory is still 79.7MB. Free memory was 41.4MB in the beginning and 39.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:02:03,309 INFO L158 Benchmark]: RCFGBuilder took 1259.80ms. Allocated memory was 79.7MB in the beginning and 119.5MB in the end (delta: 39.8MB). Free memory was 39.6MB in the beginning and 91.7MB in the end (delta: -52.1MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2023-11-06 23:02:03,310 INFO L158 Benchmark]: TraceAbstraction took 3308.09ms. Allocated memory is still 119.5MB. Free memory was 91.2MB in the beginning and 72.2MB in the end (delta: 19.0MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2023-11-06 23:02:03,310 INFO L158 Benchmark]: Witness Printer took 88.15ms. Allocated memory is still 119.5MB. Free memory was 72.2MB in the beginning and 67.9MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 23:02:03,312 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 79.7MB. Free memory is still 55.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.93ms. Allocated memory is still 79.7MB. Free memory was 55.5MB in the beginning and 43.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.53ms. Allocated memory is still 79.7MB. Free memory was 43.4MB in the beginning and 41.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 93.75ms. Allocated memory is still 79.7MB. Free memory was 41.4MB in the beginning and 39.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1259.80ms. Allocated memory was 79.7MB in the beginning and 119.5MB in the end (delta: 39.8MB). Free memory was 39.6MB in the beginning and 91.7MB in the end (delta: -52.1MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3308.09ms. Allocated memory is still 119.5MB. Free memory was 91.2MB in the beginning and 72.2MB in the end (delta: 19.0MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Witness Printer took 88.15ms. Allocated memory is still 119.5MB. Free memory was 72.2MB in the beginning and 67.9MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated * 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: 99]: 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, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 175 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 98 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 77 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 91 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 4 QuantifiedInterpolants, 168 SizeOfPredicates, 16 NumberOfNonLiveVariables, 112 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant [2023-11-06 23:02:03,324 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-06 23:02:03,324 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated Derived loop invariant: NULL - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant [2023-11-06 23:02:03,325 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-06 23:02:03,325 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-06 23:02:03,326 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-06 23:02:03,326 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated Derived loop invariant: NULL - InvariantResult [Line: 15]: Loop Invariant [2023-11-06 23:02:03,327 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-06 23:02:03,327 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-06 23:02:03,328 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-06 23:02:03,328 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated Derived loop invariant: (1 == \result) - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-06 23:02:03,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa615a8-c709-43fc-8803-19821baa4f1a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE