./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/sine_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf2305db0d1203cb19d8044e9a6a42a8b9d1729a9edcdb80b1d7b6c3eacfaa74 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:23:28,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:23:28,893 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 19:23:28,898 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:23:28,899 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:23:28,923 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:23:28,923 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:23:28,924 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:23:28,925 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:23:28,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:23:28,926 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:23:28,926 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:23:28,927 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:23:28,927 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:23:28,928 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:23:28,928 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:23:28,929 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:23:28,929 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:23:28,930 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:23:28,930 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:23:28,931 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:23:28,936 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:23:28,936 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:23:28,937 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:23:28,937 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:23:28,937 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:23:28,938 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:23:28,938 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:23:28,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:23:28,939 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:23:28,939 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:23:28,940 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:23:28,940 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:23:28,940 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:23:28,940 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:23:28,940 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:23:28,941 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:23:28,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:23:28,941 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:23:28,941 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:23:28,941 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:23:28,942 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:23:28,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:23:28,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:23:28,942 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:23:28,943 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:23:28,943 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:23:28,943 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf2305db0d1203cb19d8044e9a6a42a8b9d1729a9edcdb80b1d7b6c3eacfaa74 [2023-12-02 19:23:29,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:23:29,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:23:29,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:23:29,196 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:23:29,196 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:23:29,197 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/floats-cdfpl/sine_7.i [2023-12-02 19:23:31,980 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:23:32,146 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:23:32,146 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/sv-benchmarks/c/floats-cdfpl/sine_7.i [2023-12-02 19:23:32,154 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/data/35630ac87/2f59821eca7d437d881901fec217cb0d/FLAG1f80d7dbc [2023-12-02 19:23:32,169 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/data/35630ac87/2f59821eca7d437d881901fec217cb0d [2023-12-02 19:23:32,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:23:32,173 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:23:32,175 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:23:32,175 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:23:32,180 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:23:32,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:23:32" (1/1) ... [2023-12-02 19:23:32,182 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b25c391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:32, skipping insertion in model container [2023-12-02 19:23:32,182 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:23:32" (1/1) ... [2023-12-02 19:23:32,203 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:23:32,366 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_ccc579bd-e34b-48e2-8ddd-744b48014837/sv-benchmarks/c/floats-cdfpl/sine_7.i[1641,1654] [2023-12-02 19:23:32,372 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:23:32,383 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:23:32,400 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_ccc579bd-e34b-48e2-8ddd-744b48014837/sv-benchmarks/c/floats-cdfpl/sine_7.i[1641,1654] [2023-12-02 19:23:32,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:23:32,415 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:23:32,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:32 WrapperNode [2023-12-02 19:23:32,415 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:23:32,416 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:23:32,416 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:23:32,416 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:23:32,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:32" (1/1) ... [2023-12-02 19:23:32,430 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:32" (1/1) ... [2023-12-02 19:23:32,447 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2023-12-02 19:23:32,447 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:23:32,448 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:23:32,448 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:23:32,448 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:23:32,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:32" (1/1) ... [2023-12-02 19:23:32,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:32" (1/1) ... [2023-12-02 19:23:32,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:32" (1/1) ... [2023-12-02 19:23:32,458 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:32" (1/1) ... [2023-12-02 19:23:32,462 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:32" (1/1) ... [2023-12-02 19:23:32,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:32" (1/1) ... [2023-12-02 19:23:32,464 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:32" (1/1) ... [2023-12-02 19:23:32,465 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:32" (1/1) ... [2023-12-02 19:23:32,467 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:23:32,467 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:23:32,468 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:23:32,468 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:23:32,469 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:32" (1/1) ... [2023-12-02 19:23:32,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:23:32,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:23:32,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:23:32,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:23:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:23:32,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:23:32,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:23:32,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:23:32,579 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:23:32,581 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:23:32,650 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:23:32,691 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:23:32,691 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 19:23:32,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:23:32 BoogieIcfgContainer [2023-12-02 19:23:32,693 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:23:32,696 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:23:32,696 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:23:32,699 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:23:32,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:23:32" (1/3) ... [2023-12-02 19:23:32,700 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20678a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:23:32, skipping insertion in model container [2023-12-02 19:23:32,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:32" (2/3) ... [2023-12-02 19:23:32,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20678a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:23:32, skipping insertion in model container [2023-12-02 19:23:32,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:23:32" (3/3) ... [2023-12-02 19:23:32,702 INFO L112 eAbstractionObserver]: Analyzing ICFG sine_7.i [2023-12-02 19:23:32,717 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:23:32,717 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:23:32,753 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:23:32,760 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@216cc729, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:23:32,760 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:23:32,764 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2023-12-02 19:23:32,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 19:23:32,770 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:23:32,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-12-02 19:23:32,772 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:23:32,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:23:32,777 INFO L85 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2023-12-02 19:23:32,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:23:32,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768256046] [2023-12-02 19:23:32,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:23:32,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:23:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 19:23:32,887 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 19:23:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 19:23:32,916 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 19:23:32,918 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 19:23:32,919 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 19:23:32,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 19:23:32,926 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 19:23:32,930 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 19:23:32,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:23:32 BoogieIcfgContainer [2023-12-02 19:23:32,947 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 19:23:32,947 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 19:23:32,948 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 19:23:32,948 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 19:23:32,949 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:23:32" (3/4) ... [2023-12-02 19:23:32,951 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 19:23:32,952 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 19:23:32,953 INFO L158 Benchmark]: Toolchain (without parser) took 779.89ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 99.0MB in the beginning and 143.4MB in the end (delta: -44.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:23:32,954 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:23:32,955 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.77ms. Allocated memory is still 144.7MB. Free memory was 98.5MB in the beginning and 88.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 19:23:32,955 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.89ms. Allocated memory is still 144.7MB. Free memory was 88.0MB in the beginning and 86.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:23:32,956 INFO L158 Benchmark]: Boogie Preprocessor took 19.22ms. Allocated memory is still 144.7MB. Free memory was 86.6MB in the beginning and 85.9MB in the end (delta: 663.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 19:23:32,957 INFO L158 Benchmark]: RCFGBuilder took 225.76ms. Allocated memory is still 144.7MB. Free memory was 85.5MB in the beginning and 75.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 19:23:32,957 INFO L158 Benchmark]: TraceAbstraction took 250.58ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 74.9MB in the beginning and 144.3MB in the end (delta: -69.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:23:32,958 INFO L158 Benchmark]: Witness Printer took 4.85ms. Allocated memory is still 174.1MB. Free memory is still 143.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:23:32,961 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.77ms. Allocated memory is still 144.7MB. Free memory was 98.5MB in the beginning and 88.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.89ms. Allocated memory is still 144.7MB. Free memory was 88.0MB in the beginning and 86.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.22ms. Allocated memory is still 144.7MB. Free memory was 86.6MB in the beginning and 85.9MB in the end (delta: 663.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 225.76ms. Allocated memory is still 144.7MB. Free memory was 85.5MB in the beginning and 75.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 250.58ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 74.9MB in the beginning and 144.3MB in the end (delta: -69.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.85ms. Allocated memory is still 174.1MB. Free memory is still 143.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 37]: 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 36, overapproximation of someBinaryArithmeticFLOAToperation at line 34. Possible FailurePath: [L29] float IN = __VERIFIER_nondet_float(); [L30] CALL assume_abort_if_not(IN > -1.57079632679f && IN < 1.57079632679f) [L24] COND FALSE !(!cond) [L30] RET assume_abort_if_not(IN > -1.57079632679f && IN < 1.57079632679f) [L32] float x = IN; [L34] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [IN=53, x=53] [L36] COND TRUE !(result <= 1.5f && result >= -1.5f) VAL [IN=53, x=53] [L37] reach_error() VAL [IN=53, x=53] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2023-12-02 19:23:32,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/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_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf2305db0d1203cb19d8044e9a6a42a8b9d1729a9edcdb80b1d7b6c3eacfaa74 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:23:34,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:23:35,023 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 19:23:35,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:23:35,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:23:35,058 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:23:35,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:23:35,059 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:23:35,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:23:35,060 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:23:35,061 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:23:35,062 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:23:35,062 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:23:35,063 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:23:35,063 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:23:35,064 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:23:35,065 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:23:35,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:23:35,066 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:23:35,066 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:23:35,067 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:23:35,067 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:23:35,068 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:23:35,068 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:23:35,069 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 19:23:35,069 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 19:23:35,070 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 19:23:35,070 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:23:35,070 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:23:35,071 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:23:35,071 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:23:35,072 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 19:23:35,072 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:23:35,072 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:23:35,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:23:35,073 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:23:35,073 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:23:35,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:23:35,073 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 19:23:35,074 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 19:23:35,074 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:23:35,074 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:23:35,074 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:23:35,075 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:23:35,075 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf2305db0d1203cb19d8044e9a6a42a8b9d1729a9edcdb80b1d7b6c3eacfaa74 [2023-12-02 19:23:35,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:23:35,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:23:35,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:23:35,383 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:23:35,383 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:23:35,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/floats-cdfpl/sine_7.i [2023-12-02 19:23:38,183 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:23:38,374 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:23:38,375 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/sv-benchmarks/c/floats-cdfpl/sine_7.i [2023-12-02 19:23:38,382 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/data/80eaf80ce/ef31c01c22674c72b014f9bbd98c7f3a/FLAG359eb0047 [2023-12-02 19:23:38,395 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/data/80eaf80ce/ef31c01c22674c72b014f9bbd98c7f3a [2023-12-02 19:23:38,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:23:38,398 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:23:38,400 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:23:38,400 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:23:38,404 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:23:38,405 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:23:38" (1/1) ... [2023-12-02 19:23:38,406 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@356bb004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:38, skipping insertion in model container [2023-12-02 19:23:38,406 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:23:38" (1/1) ... [2023-12-02 19:23:38,425 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:23:38,560 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_ccc579bd-e34b-48e2-8ddd-744b48014837/sv-benchmarks/c/floats-cdfpl/sine_7.i[1641,1654] [2023-12-02 19:23:38,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:23:38,577 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:23:38,592 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_ccc579bd-e34b-48e2-8ddd-744b48014837/sv-benchmarks/c/floats-cdfpl/sine_7.i[1641,1654] [2023-12-02 19:23:38,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:23:38,609 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:23:38,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:38 WrapperNode [2023-12-02 19:23:38,609 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:23:38,610 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:23:38,610 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:23:38,610 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:23:38,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:38" (1/1) ... [2023-12-02 19:23:38,625 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:38" (1/1) ... [2023-12-02 19:23:38,643 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2023-12-02 19:23:38,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:23:38,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:23:38,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:23:38,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:23:38,652 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:38" (1/1) ... [2023-12-02 19:23:38,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:38" (1/1) ... [2023-12-02 19:23:38,655 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:38" (1/1) ... [2023-12-02 19:23:38,656 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:38" (1/1) ... [2023-12-02 19:23:38,663 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:38" (1/1) ... [2023-12-02 19:23:38,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:38" (1/1) ... [2023-12-02 19:23:38,667 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:38" (1/1) ... [2023-12-02 19:23:38,669 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:38" (1/1) ... [2023-12-02 19:23:38,672 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:23:38,673 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:23:38,673 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:23:38,674 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:23:38,674 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:38" (1/1) ... [2023-12-02 19:23:38,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:23:38,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:23:38,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:23:38,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:23:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:23:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 19:23:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:23:38,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:23:38,798 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:23:38,800 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:23:41,189 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:23:41,211 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:23:41,211 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 19:23:41,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:23:41 BoogieIcfgContainer [2023-12-02 19:23:41,212 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:23:41,215 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:23:41,215 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:23:41,219 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:23:41,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:23:38" (1/3) ... [2023-12-02 19:23:41,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ebbb52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:23:41, skipping insertion in model container [2023-12-02 19:23:41,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:23:38" (2/3) ... [2023-12-02 19:23:41,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ebbb52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:23:41, skipping insertion in model container [2023-12-02 19:23:41,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:23:41" (3/3) ... [2023-12-02 19:23:41,222 INFO L112 eAbstractionObserver]: Analyzing ICFG sine_7.i [2023-12-02 19:23:41,238 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:23:41,238 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:23:41,296 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:23:41,304 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1eea9670, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:23:41,304 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:23:41,308 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:23:41,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 19:23:41,325 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:23:41,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 19:23:41,326 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:23:41,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:23:41,332 INFO L85 PathProgramCache]: Analyzing trace with hash 49104602, now seen corresponding path program 1 times [2023-12-02 19:23:41,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:23:41,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648368045] [2023-12-02 19:23:41,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:23:41,346 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 [2023-12-02 19:23:41,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:23:41,348 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 19:23:41,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 19:23:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:23:41,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 19:23:41,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:23:41,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 19:23:41,889 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:23:41,890 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 19:23:41,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648368045] [2023-12-02 19:23:41,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648368045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:23:41,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:23:41,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 19:23:41,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30134540] [2023-12-02 19:23:41,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:23:41,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 19:23:41,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 19:23:41,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 19:23:41,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 19:23:41,928 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:23:41,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:23:41,956 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2023-12-02 19:23:41,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 19:23:41,959 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-12-02 19:23:41,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:23:41,966 INFO L225 Difference]: With dead ends: 14 [2023-12-02 19:23:41,966 INFO L226 Difference]: Without dead ends: 6 [2023-12-02 19:23:41,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 19:23:41,971 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:23:41,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 19:23:41,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2023-12-02 19:23:41,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2023-12-02 19:23:41,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:23:41,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2023-12-02 19:23:41,994 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 5 [2023-12-02 19:23:41,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:23:41,994 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2023-12-02 19:23:41,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 19:23:41,994 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2023-12-02 19:23:41,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 19:23:41,995 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:23:41,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 19:23:42,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 19:23:42,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 19:23:42,196 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:23:42,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:23:42,197 INFO L85 PathProgramCache]: Analyzing trace with hash 49164184, now seen corresponding path program 1 times [2023-12-02 19:23:42,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:23:42,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1374560079] [2023-12-02 19:23:42,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:23:42,197 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 [2023-12-02 19:23:42,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:23:42,199 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 19:23:42,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccc579bd-e34b-48e2-8ddd-744b48014837/bin/utaipan-verify-nQ1chXbOIh/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