./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-22.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_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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 101fbb34b2498d242822fcc62430a6f25e55677b94935955c435faee9e4e1497 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:23:03,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:23:03,887 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 16:23:03,892 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:23:03,892 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:23:03,917 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:23:03,918 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:23:03,919 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:23:03,919 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:23:03,920 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:23:03,921 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:23:03,921 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:23:03,922 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:23:03,922 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:23:03,923 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:23:03,923 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:23:03,924 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:23:03,924 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:23:03,925 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:23:03,925 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:23:03,926 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:23:03,927 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:23:03,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:23:03,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:23:03,929 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:23:03,929 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:23:03,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:23:03,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:23:03,930 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:23:03,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:23:03,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:23:03,932 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:23:03,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:23:03,932 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:23:03,933 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:23:03,933 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:23:03,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:23:03,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:23:03,933 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:23:03,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:23:03,934 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:23:03,934 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:23:03,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:23:03,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:23:03,935 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:23:03,935 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:23:03,935 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:23:03,936 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_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 101fbb34b2498d242822fcc62430a6f25e55677b94935955c435faee9e4e1497 [2023-12-02 16:23:04,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:23:04,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:23:04,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:23:04,184 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:23:04,184 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:23:04,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-22.i [2023-12-02 16:23:06,894 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:23:07,096 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:23:07,097 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-22.i [2023-12-02 16:23:07,107 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/data/1f6de7507/4e1db4fd2b0a4d529773cee189e3688c/FLAG581a79e58 [2023-12-02 16:23:07,119 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/data/1f6de7507/4e1db4fd2b0a4d529773cee189e3688c [2023-12-02 16:23:07,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:23:07,123 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:23:07,124 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:23:07,124 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:23:07,128 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:23:07,129 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:23:07" (1/1) ... [2023-12-02 16:23:07,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41b1ab03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:07, skipping insertion in model container [2023-12-02 16:23:07,130 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:23:07" (1/1) ... [2023-12-02 16:23:07,158 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:23:07,278 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_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-22.i[915,928] [2023-12-02 16:23:07,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:23:07,348 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:23:07,357 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_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-22.i[915,928] [2023-12-02 16:23:07,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:23:07,407 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:23:07,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:07 WrapperNode [2023-12-02 16:23:07,407 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:23:07,408 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:23:07,408 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:23:07,409 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:23:07,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:07" (1/1) ... [2023-12-02 16:23:07,426 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:07" (1/1) ... [2023-12-02 16:23:07,468 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 163 [2023-12-02 16:23:07,468 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:23:07,469 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:23:07,469 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:23:07,469 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:23:07,478 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:07" (1/1) ... [2023-12-02 16:23:07,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:07" (1/1) ... [2023-12-02 16:23:07,483 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:07" (1/1) ... [2023-12-02 16:23:07,483 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:07" (1/1) ... [2023-12-02 16:23:07,497 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:07" (1/1) ... [2023-12-02 16:23:07,500 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:07" (1/1) ... [2023-12-02 16:23:07,502 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:07" (1/1) ... [2023-12-02 16:23:07,505 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:07" (1/1) ... [2023-12-02 16:23:07,510 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:23:07,511 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:23:07,511 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:23:07,512 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:23:07,512 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:07" (1/1) ... [2023-12-02 16:23:07,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:23:07,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:23:07,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:23:07,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:23:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:23:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:23:07,584 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:23:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:23:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:23:07,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:23:07,674 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:23:07,676 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:23:07,971 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:23:08,172 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:23:08,172 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:23:08,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:23:08 BoogieIcfgContainer [2023-12-02 16:23:08,174 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:23:08,177 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:23:08,177 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:23:08,180 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:23:08,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:23:07" (1/3) ... [2023-12-02 16:23:08,182 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e9ef144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:23:08, skipping insertion in model container [2023-12-02 16:23:08,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:07" (2/3) ... [2023-12-02 16:23:08,182 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e9ef144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:23:08, skipping insertion in model container [2023-12-02 16:23:08,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:23:08" (3/3) ... [2023-12-02 16:23:08,183 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-22.i [2023-12-02 16:23:08,203 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:23:08,204 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:23:08,254 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:23:08,262 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;@310ee18c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:23:08,262 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:23:08,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-02 16:23:08,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 16:23:08,277 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:23:08,278 INFO L195 NwaCegarLoop]: trace histogram [23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:23:08,278 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:23:08,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:23:08,282 INFO L85 PathProgramCache]: Analyzing trace with hash 907893742, now seen corresponding path program 1 times [2023-12-02 16:23:08,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:23:08,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028292723] [2023-12-02 16:23:08,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:23:08,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:23:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:23:08,763 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:23:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:23:09,026 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 16:23:09,028 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:23:09,029 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 16:23:09,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:23:09,037 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 16:23:09,041 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:23:09,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:23:09 BoogieIcfgContainer [2023-12-02 16:23:09,117 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:23:09,117 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:23:09,118 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:23:09,118 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:23:09,118 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:23:08" (3/4) ... [2023-12-02 16:23:09,121 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 16:23:09,122 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:23:09,123 INFO L158 Benchmark]: Toolchain (without parser) took 2000.31ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 95.7MB in the beginning and 69.2MB in the end (delta: 26.5MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2023-12-02 16:23:09,123 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:23:09,124 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.74ms. Allocated memory is still 125.8MB. Free memory was 95.7MB in the beginning and 81.3MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 16:23:09,125 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.00ms. Allocated memory is still 125.8MB. Free memory was 81.3MB in the beginning and 76.8MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 16:23:09,125 INFO L158 Benchmark]: Boogie Preprocessor took 41.56ms. Allocated memory is still 125.8MB. Free memory was 76.8MB in the beginning and 74.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:23:09,126 INFO L158 Benchmark]: RCFGBuilder took 662.90ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 74.7MB in the beginning and 103.0MB in the end (delta: -28.3MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2023-12-02 16:23:09,127 INFO L158 Benchmark]: TraceAbstraction took 939.81ms. Allocated memory is still 151.0MB. Free memory was 102.2MB in the beginning and 69.2MB in the end (delta: 33.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-12-02 16:23:09,127 INFO L158 Benchmark]: Witness Printer took 4.46ms. Allocated memory is still 151.0MB. Free memory is still 69.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:23:09,130 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 125.8MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.74ms. Allocated memory is still 125.8MB. Free memory was 95.7MB in the beginning and 81.3MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.00ms. Allocated memory is still 125.8MB. Free memory was 81.3MB in the beginning and 76.8MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.56ms. Allocated memory is still 125.8MB. Free memory was 76.8MB in the beginning and 74.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 662.90ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 74.7MB in the beginning and 103.0MB in the end (delta: -28.3MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * TraceAbstraction took 939.81ms. Allocated memory is still 151.0MB. Free memory was 102.2MB in the beginning and 69.2MB in the end (delta: 33.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 4.46ms. Allocated memory is still 151.0MB. Free memory is still 69.2MB. 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: 19]: 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 someBinaryDOUBLEComparisonOperation at line 53, overapproximation of shiftLeft at line 56, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 128; [L23] unsigned short int var_1_4 = 256; [L24] unsigned short int var_1_6 = 10000; [L25] unsigned short int var_1_7 = 10000; [L26] unsigned short int var_1_8 = 128; [L27] unsigned short int var_1_9 = 8; [L28] unsigned char var_1_10 = 100; [L29] unsigned char var_1_11 = 64; [L30] unsigned char var_1_12 = 16; [L31] unsigned short int var_1_13 = 256; [L32] unsigned short int var_1_17 = 4; [L33] double var_1_18 = 64.2; [L34] unsigned short int var_1_19 = 53045; [L35] double var_1_20 = 1.75; [L36] double var_1_21 = 50.35; [L37] double var_1_22 = 5.5; [L38] double var_1_23 = 7.125; [L39] unsigned long int var_1_24 = 50; [L40] unsigned long int var_1_25 = 1907531378; [L41] unsigned long int var_1_26 = 8; [L42] unsigned char var_1_27 = 0; [L43] unsigned long int last_1_var_1_24 = 50; [L44] unsigned char last_1_var_1_27 = 0; [L133] isInitial = 1 [L134] FCALL initially() [L135] int k_loop; [L136] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=256, var_1_6=10000, var_1_7=10000, var_1_8=128, var_1_9=8] [L136] COND TRUE k_loop < 1 [L137] CALL updateLastVariables() [L125] last_1_var_1_24 = var_1_24 [L126] last_1_var_1_27 = var_1_27 [L137] RET updateLastVariables() [L138] CALL updateVariables() [L87] var_1_4 = __VERIFIER_nondet_ushort() [L88] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_6=10000, var_1_7=10000, var_1_8=128, var_1_9=8] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_6=10000, var_1_7=10000, var_1_8=128, var_1_9=8] [L89] CALL assume_abort_if_not(var_1_4 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=10000, var_1_7=10000, var_1_8=128, var_1_9=8] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_4 <= 65534) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=10000, var_1_7=10000, var_1_8=128, var_1_9=8] [L90] var_1_6 = __VERIFIER_nondet_ushort() [L91] CALL assume_abort_if_not(var_1_6 >= 8191) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=10000, var_1_8=128, var_1_9=8] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_6 >= 8191) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=10000, var_1_8=128, var_1_9=8] [L92] CALL assume_abort_if_not(var_1_6 <= 16384) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=10000, var_1_8=128, var_1_9=8] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_6 <= 16384) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=10000, var_1_8=128, var_1_9=8] [L93] var_1_7 = __VERIFIER_nondet_ushort() [L94] CALL assume_abort_if_not(var_1_7 >= 8192) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=128, var_1_9=8] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_7 >= 8192) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=128, var_1_9=8] [L95] CALL assume_abort_if_not(var_1_7 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=128, var_1_9=8] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_7 <= 16383) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=128, var_1_9=8] [L96] var_1_8 = __VERIFIER_nondet_ushort() [L97] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_9=8] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_9=8] [L98] CALL assume_abort_if_not(var_1_8 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=8] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_8 <= 16383) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=8] [L99] var_1_9 = __VERIFIER_nondet_ushort() [L100] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383] [L101] CALL assume_abort_if_not(var_1_9 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_9 <= 32767) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=64, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L102] var_1_11 = __VERIFIER_nondet_uchar() [L103] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L104] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=16, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L105] var_1_12 = __VERIFIER_nondet_uchar() [L106] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L107] CALL assume_abort_if_not(var_1_12 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(var_1_12 <= 127) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_18=321/5, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L108] var_1_18 = __VERIFIER_nondet_double() [L109] CALL assume_abort_if_not((var_1_18 >= -922337.2036854776000e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854776000e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not((var_1_18 >= -922337.2036854776000e+13F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 9223372.036854776000e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L110] CALL assume_abort_if_not(var_1_18 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_18 != 0.0F) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_19=53045, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L111] var_1_19 = __VERIFIER_nondet_ushort() [L112] CALL assume_abort_if_not(var_1_19 >= 49150) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_19=49150, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_19 >= 49150) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_19=49150, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L113] CALL assume_abort_if_not(var_1_19 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_19=49150, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(var_1_19 <= 65534) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_19=49150, var_1_1=128, var_1_20=7/4, var_1_21=1007/20, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L114] var_1_21 = __VERIFIER_nondet_double() [L115] CALL assume_abort_if_not((var_1_21 >= 0.0F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_19=49150, var_1_1=128, var_1_20=7/4, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not((var_1_21 >= 0.0F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_19=49150, var_1_1=128, var_1_20=7/4, var_1_22=11/2, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L116] var_1_22 = __VERIFIER_nondet_double() [L117] CALL assume_abort_if_not((var_1_22 >= 0.0F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 9223372.036854765600e+12F && var_1_22 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_19=49150, var_1_1=128, var_1_20=7/4, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not((var_1_22 >= 0.0F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 9223372.036854765600e+12F && var_1_22 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_19=49150, var_1_1=128, var_1_20=7/4, var_1_23=57/8, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L118] var_1_23 = __VERIFIER_nondet_double() [L119] CALL assume_abort_if_not((var_1_23 >= 0.0F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 9223372.036854765600e+12F && var_1_23 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_19=49150, var_1_1=128, var_1_20=7/4, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L20] COND FALSE !(!cond) [L119] RET assume_abort_if_not((var_1_23 >= 0.0F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 9223372.036854765600e+12F && var_1_23 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_19=49150, var_1_1=128, var_1_20=7/4, var_1_24=50, var_1_25=1907531378, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L120] var_1_25 = __VERIFIER_nondet_ulong() [L121] CALL assume_abort_if_not(var_1_25 >= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_19=49150, var_1_1=128, var_1_20=7/4, var_1_24=50, var_1_25=1073741823, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L20] COND FALSE !(!cond) [L121] RET assume_abort_if_not(var_1_25 >= 1073741823) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_19=49150, var_1_1=128, var_1_20=7/4, var_1_24=50, var_1_25=1073741823, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L122] CALL assume_abort_if_not(var_1_25 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_19=49150, var_1_1=128, var_1_20=7/4, var_1_24=50, var_1_25=1073741823, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L20] COND FALSE !(!cond) [L122] RET assume_abort_if_not(var_1_25 <= 2147483647) VAL [isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=100, var_1_11=8, var_1_12=8, var_1_13=256, var_1_17=4, var_1_19=49150, var_1_1=128, var_1_20=7/4, var_1_24=50, var_1_25=1073741823, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L138] RET updateVariables() [L139] CALL step() [L48] COND FALSE !(\read(last_1_var_1_27)) [L51] var_1_20 = var_1_22 [L53] COND TRUE (- 3.75) < ((((var_1_20) < (var_1_22)) ? (var_1_20) : (var_1_22))) [L54] var_1_27 = 0 [L56] EXPR var_1_8 << var_1_4 [L56] COND FALSE !(var_1_9 < (var_1_8 << var_1_4)) [L59] var_1_10 = var_1_11 [L61] unsigned char stepLocal_0 = var_1_27; [L62] COND TRUE (var_1_10 <= var_1_10) || stepLocal_0 [L63] var_1_13 = ((((((((var_1_10) > (var_1_10)) ? (var_1_10) : (var_1_10)))) > (var_1_10)) ? (((((var_1_10) > (var_1_10)) ? (var_1_10) : (var_1_10)))) : (var_1_10))) [L67] unsigned short int stepLocal_1 = var_1_7; [L68] COND FALSE !(stepLocal_1 == last_1_var_1_24) [L71] var_1_24 = (var_1_10 + (var_1_25 - var_1_11)) [L73] signed long int stepLocal_2 = var_1_19 - var_1_7; [L74] COND FALSE !(var_1_10 > stepLocal_2) [L77] COND FALSE !(var_1_20 < var_1_20) [L80] var_1_1 = (((var_1_6 + var_1_7) - var_1_10) + var_1_10) [L82] COND FALSE !((var_1_20 / var_1_18) > var_1_20) [L139] RET step() [L140] CALL, EXPR property() [L129] EXPR ((var_1_20 < var_1_20) ? (var_1_1 == ((unsigned short int) ((((var_1_10) < (var_1_10)) ? (var_1_10) : (var_1_10))))) : (var_1_1 == ((unsigned short int) (((var_1_6 + var_1_7) - var_1_10) + var_1_10)))) && ((var_1_9 < (var_1_8 << var_1_4)) ? (var_1_10 == ((unsigned char) (var_1_11 + var_1_12))) : (var_1_10 == ((unsigned char) var_1_11))) [L129-L130] return ((((((((var_1_20 < var_1_20) ? (var_1_1 == ((unsigned short int) ((((var_1_10) < (var_1_10)) ? (var_1_10) : (var_1_10))))) : (var_1_1 == ((unsigned short int) (((var_1_6 + var_1_7) - var_1_10) + var_1_10)))) && ((var_1_9 < (var_1_8 << var_1_4)) ? (var_1_10 == ((unsigned char) (var_1_11 + var_1_12))) : (var_1_10 == ((unsigned char) var_1_11)))) && (((var_1_10 <= var_1_10) || var_1_27) ? (var_1_13 == ((unsigned short int) ((((((((var_1_10) > (var_1_10)) ? (var_1_10) : (var_1_10)))) > (var_1_10)) ? (((((var_1_10) > (var_1_10)) ? (var_1_10) : (var_1_10)))) : (var_1_10))))) : (var_1_13 == ((unsigned short int) var_1_10)))) && (((var_1_20 / var_1_18) > var_1_20) ? (var_1_17 == ((unsigned short int) ((var_1_19 - ((((var_1_26) > (var_1_12)) ? (var_1_26) : (var_1_12)))) - var_1_7))) : 1)) && (last_1_var_1_27 ? (var_1_20 == ((double) (((((((((var_1_21) > (var_1_22)) ? (var_1_21) : (var_1_22)))) > (16.6)) ? (((((var_1_21) > (var_1_22)) ? (var_1_21) : (var_1_22)))) : (16.6))) - var_1_23))) : (var_1_20 == ((double) var_1_22)))) && ((var_1_7 == last_1_var_1_24) ? (var_1_24 == ((unsigned long int) (2332545940u - (1490203111u - var_1_11)))) : (var_1_24 == ((unsigned long int) (var_1_10 + (var_1_25 - var_1_11)))))) && ((var_1_10 > (var_1_19 - var_1_7)) ? (var_1_26 == ((unsigned long int) var_1_10)) : 1)) && (((- 3.75) < ((((var_1_20) < (var_1_22)) ? (var_1_20) : (var_1_22)))) ? (var_1_27 == ((unsigned char) 0)) : 1) ; [L140] RET, EXPR property() [L140] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=8, var_1_11=8, var_1_12=8, var_1_13=8, var_1_17=4, var_1_19=49150, var_1_1=32640, var_1_20=1907531383, var_1_22=1907531383, var_1_24=1073741823, var_1_25=1073741823, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_24=50, last_1_var_1_27=0, var_1_10=8, var_1_11=8, var_1_12=8, var_1_13=8, var_1_17=4, var_1_19=49150, var_1_1=32640, var_1_20=1907531383, var_1_22=1907531383, var_1_24=1073741823, var_1_25=1073741823, var_1_26=8, var_1_27=0, var_1_4=0, var_1_6=16384, var_1_7=16256, var_1_8=16383, var_1_9=32767] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 23, 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=45occurred 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, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 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 16:23:09,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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 101fbb34b2498d242822fcc62430a6f25e55677b94935955c435faee9e4e1497 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:23:11,175 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:23:11,252 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 16:23:11,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:23:11,258 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:23:11,284 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:23:11,285 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:23:11,286 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:23:11,286 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:23:11,287 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:23:11,287 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:23:11,288 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:23:11,289 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:23:11,289 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:23:11,290 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:23:11,290 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:23:11,291 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:23:11,292 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:23:11,293 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:23:11,293 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:23:11,294 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:23:11,294 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:23:11,295 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:23:11,295 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:23:11,296 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 16:23:11,296 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 16:23:11,296 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 16:23:11,297 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:23:11,297 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:23:11,297 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:23:11,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:23:11,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 16:23:11,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:23:11,299 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:23:11,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:23:11,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:23:11,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:23:11,300 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:23:11,300 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 16:23:11,300 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 16:23:11,300 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:23:11,301 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:23:11,301 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:23:11,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:23:11,301 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_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 101fbb34b2498d242822fcc62430a6f25e55677b94935955c435faee9e4e1497 [2023-12-02 16:23:11,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:23:11,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:23:11,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:23:11,600 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:23:11,600 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:23:11,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-22.i [2023-12-02 16:23:14,365 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:23:14,599 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:23:14,600 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-22.i [2023-12-02 16:23:14,610 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/data/ef9992413/b47103df6d88418898f8c07ef91892e8/FLAG3fe1f6eeb [2023-12-02 16:23:14,625 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/data/ef9992413/b47103df6d88418898f8c07ef91892e8 [2023-12-02 16:23:14,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:23:14,630 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:23:14,631 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:23:14,631 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:23:14,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:23:14,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:23:14" (1/1) ... [2023-12-02 16:23:14,638 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ea25c25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:14, skipping insertion in model container [2023-12-02 16:23:14,638 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:23:14" (1/1) ... [2023-12-02 16:23:14,675 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:23:14,825 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_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-22.i[915,928] [2023-12-02 16:23:14,881 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:23:14,896 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:23:14,909 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_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-22.i[915,928] [2023-12-02 16:23:14,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:23:14,959 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:23:14,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:14 WrapperNode [2023-12-02 16:23:14,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:23:14,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:23:14,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:23:14,961 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:23:14,969 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:14" (1/1) ... [2023-12-02 16:23:14,982 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:14" (1/1) ... [2023-12-02 16:23:15,011 INFO L138 Inliner]: procedures = 27, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 150 [2023-12-02 16:23:15,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:23:15,013 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:23:15,013 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:23:15,013 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:23:15,023 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:14" (1/1) ... [2023-12-02 16:23:15,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:14" (1/1) ... [2023-12-02 16:23:15,029 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:14" (1/1) ... [2023-12-02 16:23:15,029 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:14" (1/1) ... [2023-12-02 16:23:15,042 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:14" (1/1) ... [2023-12-02 16:23:15,046 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:14" (1/1) ... [2023-12-02 16:23:15,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:14" (1/1) ... [2023-12-02 16:23:15,052 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:14" (1/1) ... [2023-12-02 16:23:15,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:23:15,058 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:23:15,059 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:23:15,059 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:23:15,060 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:14" (1/1) ... [2023-12-02 16:23:15,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:23:15,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:23:15,099 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:23:15,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:23:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:23:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 16:23:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:23:15,129 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:23:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:23:15,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:23:15,211 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:23:15,214 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:23:22,287 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:23:22,344 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:23:22,344 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:23:22,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:23:22 BoogieIcfgContainer [2023-12-02 16:23:22,345 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:23:22,347 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:23:22,347 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:23:22,349 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:23:22,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:23:14" (1/3) ... [2023-12-02 16:23:22,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264721c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:23:22, skipping insertion in model container [2023-12-02 16:23:22,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:23:14" (2/3) ... [2023-12-02 16:23:22,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264721c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:23:22, skipping insertion in model container [2023-12-02 16:23:22,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:23:22" (3/3) ... [2023-12-02 16:23:22,352 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-22.i [2023-12-02 16:23:22,367 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:23:22,367 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:23:22,407 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:23:22,413 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;@122b8d79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:23:22,413 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:23:22,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-02 16:23:22,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-02 16:23:22,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:23:22,432 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:23:22,433 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:23:22,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:23:22,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1328587527, now seen corresponding path program 1 times [2023-12-02 16:23:22,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:23:22,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012633610] [2023-12-02 16:23:22,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:23:22,453 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 16:23:22,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:23:22,461 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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 16:23:22,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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 16:23:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:23:23,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 16:23:23,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:23:23,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 524 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2023-12-02 16:23:23,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:23:23,444 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:23:23,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012633610] [2023-12-02 16:23:23,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012633610] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:23:23,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:23:23,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:23:23,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651175764] [2023-12-02 16:23:23,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:23:23,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 16:23:23,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:23:23,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 16:23:23,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:23:23,479 INFO L87 Difference]: Start difference. First operand has 60 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 16:23:26,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:23:26,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:23:26,528 INFO L93 Difference]: Finished difference Result 119 states and 208 transitions. [2023-12-02 16:23:26,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 16:23:26,531 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 144 [2023-12-02 16:23:26,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:23:26,539 INFO L225 Difference]: With dead ends: 119 [2023-12-02 16:23:26,539 INFO L226 Difference]: Without dead ends: 58 [2023-12-02 16:23:26,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 143 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 16:23:26,547 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:23:26,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2023-12-02 16:23:26,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-12-02 16:23:26,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-12-02 16:23:26,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 33 states have internal predecessors, (40), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-02 16:23:26,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 86 transitions. [2023-12-02 16:23:26,591 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 86 transitions. Word has length 144 [2023-12-02 16:23:26,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:23:26,592 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 86 transitions. [2023-12-02 16:23:26,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 16:23:26,593 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 86 transitions. [2023-12-02 16:23:26,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-02 16:23:26,596 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:23:26,597 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:23:26,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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 16:23:26,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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 16:23:26,798 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:23:26,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:23:26,798 INFO L85 PathProgramCache]: Analyzing trace with hash -190838641, now seen corresponding path program 1 times [2023-12-02 16:23:26,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:23:26,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597003170] [2023-12-02 16:23:26,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:23:26,800 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 16:23:26,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:23:26,801 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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 16:23:26,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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 [2023-12-02 16:23:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:23:27,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:23:27,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:23:29,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-12-02 16:23:29,075 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:23:29,076 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:23:29,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597003170] [2023-12-02 16:23:29,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597003170] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:23:29,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:23:29,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:23:29,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967828849] [2023-12-02 16:23:29,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:23:29,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:23:29,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:23:29,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:23:29,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:23:29,081 INFO L87 Difference]: Start difference. First operand 58 states and 86 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-02 16:23:32,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:23:32,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:23:32,377 INFO L93 Difference]: Finished difference Result 115 states and 171 transitions. [2023-12-02 16:23:32,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:23:32,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 144 [2023-12-02 16:23:32,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:23:32,380 INFO L225 Difference]: With dead ends: 115 [2023-12-02 16:23:32,380 INFO L226 Difference]: Without dead ends: 58 [2023-12-02 16:23:32,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:23:32,383 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 58 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:23:32,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 79 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2023-12-02 16:23:32,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-12-02 16:23:32,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-12-02 16:23:32,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 33 states have internal predecessors, (39), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-02 16:23:32,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 85 transitions. [2023-12-02 16:23:32,398 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 85 transitions. Word has length 144 [2023-12-02 16:23:32,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:23:32,400 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 85 transitions. [2023-12-02 16:23:32,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-02 16:23:32,401 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 85 transitions. [2023-12-02 16:23:32,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-02 16:23:32,403 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:23:32,404 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:23:32,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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)] Ended with exit code 0 [2023-12-02 16:23:32,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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 16:23:32,604 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:23:32,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:23:32,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1201955891, now seen corresponding path program 1 times [2023-12-02 16:23:32,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:23:32,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268577287] [2023-12-02 16:23:32,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:23:32,606 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 16:23:32,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:23:32,607 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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 16:23:32,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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 (4)] Waiting until timeout for monitored process [2023-12-02 16:23:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:23:33,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 16:23:33,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:23:38,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 338 proven. 102 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2023-12-02 16:23:38,086 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:23:39,416 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:23:39,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268577287] [2023-12-02 16:23:39,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268577287] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:23:39,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1099408309] [2023-12-02 16:23:39,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:23:39,417 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:23:39,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:23:39,418 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:23:39,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 16:23:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:23:40,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 16:23:40,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:23:43,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 318 proven. 54 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2023-12-02 16:23:43,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:23:44,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1099408309] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:23:44,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58255349] [2023-12-02 16:23:44,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:23:44,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:23:44,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:23:44,006 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:23:44,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 16:23:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:23:45,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 16:23:45,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:23:47,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 318 proven. 54 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2023-12-02 16:23:47,572 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:23:48,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58255349] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:23:48,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:23:48,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 11 [2023-12-02 16:23:48,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033660896] [2023-12-02 16:23:48,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:23:48,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 16:23:48,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:23:48,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 16:23:48,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2023-12-02 16:23:48,109 INFO L87 Difference]: Start difference. First operand 58 states and 85 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (40), 3 states have call predecessors, (40), 5 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2023-12-02 16:23:53,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:23:55,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:23:57,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:23:59,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:01,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:03,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:06,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:08,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:10,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:12,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:14,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:16,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:18,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:20,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:23,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:25,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:27,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:30,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:32,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:34,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:36,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:38,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:40,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:42,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:44,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:46,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:48,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:50,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 16:24:50,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:24:50,625 INFO L93 Difference]: Finished difference Result 183 states and 262 transitions. [2023-12-02 16:24:50,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 16:24:50,625 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (40), 3 states have call predecessors, (40), 5 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 144 [2023-12-02 16:24:50,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:24:50,628 INFO L225 Difference]: With dead ends: 183 [2023-12-02 16:24:50,628 INFO L226 Difference]: Without dead ends: 126 [2023-12-02 16:24:50,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 789 GetRequests, 760 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=288, Invalid=642, Unknown=0, NotChecked=0, Total=930 [2023-12-02 16:24:50,630 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 87 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 70 mSolverCounterUnsat, 28 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 28 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:24:50,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 393 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 279 Invalid, 28 Unknown, 0 Unchecked, 61.6s Time] [2023-12-02 16:24:50,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-12-02 16:24:50,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 114. [2023-12-02 16:24:50,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 63 states have (on average 1.126984126984127) internal successors, (71), 63 states have internal predecessors, (71), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 16:24:50,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 163 transitions. [2023-12-02 16:24:50,662 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 163 transitions. Word has length 144 [2023-12-02 16:24:50,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:24:50,663 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 163 transitions. [2023-12-02 16:24:50,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (40), 3 states have call predecessors, (40), 5 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2023-12-02 16:24:50,663 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 163 transitions. [2023-12-02 16:24:50,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-02 16:24:50,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:24:50,666 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:24:50,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 16:24:50,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 16:24:51,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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 (4)] Ended with exit code 0 [2023-12-02 16:24:51,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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 16:24:51,272 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:24:51,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:24:51,273 INFO L85 PathProgramCache]: Analyzing trace with hash -2011302517, now seen corresponding path program 1 times [2023-12-02 16:24:51,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:24:51,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [10480619] [2023-12-02 16:24:51,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:24:51,274 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 16:24:51,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:24:51,275 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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 16:24:51,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/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 (7)] Waiting until timeout for monitored process [2023-12-02 16:24:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:24:52,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 16:24:52,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:24:55,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 620 proven. 114 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2023-12-02 16:24:55,465 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:24:55,908 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:24:55,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [10480619] [2023-12-02 16:24:55,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [10480619] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:24:55,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [587963992] [2023-12-02 16:24:55,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:24:55,908 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:24:55,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:24:55,910 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:24:55,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17e7d1c2-6b9a-4297-a001-c2ca0cfc08e9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process