./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-48.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-48.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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 9437d1cfddee7218df8fa3dfbeae56bca9eead9fe5750ca345ccb47639179368 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 20:06:05,190 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 20:06:05,254 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 20:06:05,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 20:06:05,261 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 20:06:05,285 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 20:06:05,286 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 20:06:05,287 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 20:06:05,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 20:06:05,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 20:06:05,289 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 20:06:05,289 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 20:06:05,290 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 20:06:05,290 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 20:06:05,291 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 20:06:05,291 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 20:06:05,292 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 20:06:05,292 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 20:06:05,293 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 20:06:05,293 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 20:06:05,294 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 20:06:05,295 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 20:06:05,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 20:06:05,296 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 20:06:05,297 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 20:06:05,297 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 20:06:05,297 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 20:06:05,298 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 20:06:05,298 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 20:06:05,299 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 20:06:05,299 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 20:06:05,299 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 20:06:05,300 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 20:06:05,300 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 20:06:05,300 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 20:06:05,300 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 20:06:05,301 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 20:06:05,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:06:05,301 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 20:06:05,301 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 20:06:05,302 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 20:06:05,302 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 20:06:05,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 20:06:05,302 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 20:06:05,303 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 20:06:05,303 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 20:06:05,303 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 20:06:05,303 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_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9437d1cfddee7218df8fa3dfbeae56bca9eead9fe5750ca345ccb47639179368 [2023-12-02 20:06:05,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 20:06:05,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 20:06:05,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 20:06:05,561 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 20:06:05,562 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 20:06:05,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-48.i [2023-12-02 20:06:08,288 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 20:06:08,469 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 20:06:08,470 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-48.i [2023-12-02 20:06:08,479 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/data/e7547cf54/0619f32e42a34d9b85fd664cbfc3f2b9/FLAGa7f1a2583 [2023-12-02 20:06:08,494 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/data/e7547cf54/0619f32e42a34d9b85fd664cbfc3f2b9 [2023-12-02 20:06:08,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 20:06:08,497 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 20:06:08,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 20:06:08,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 20:06:08,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 20:06:08,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:06:08" (1/1) ... [2023-12-02 20:06:08,505 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a246ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:08, skipping insertion in model container [2023-12-02 20:06:08,505 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:06:08" (1/1) ... [2023-12-02 20:06:08,533 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 20:06:08,657 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_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-48.i[915,928] [2023-12-02 20:06:08,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:06:08,725 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 20:06:08,735 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_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-48.i[915,928] [2023-12-02 20:06:08,769 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:06:08,784 INFO L206 MainTranslator]: Completed translation [2023-12-02 20:06:08,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:08 WrapperNode [2023-12-02 20:06:08,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 20:06:08,786 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 20:06:08,786 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 20:06:08,786 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 20:06:08,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:08" (1/1) ... [2023-12-02 20:06:08,802 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:08" (1/1) ... [2023-12-02 20:06:08,838 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 148 [2023-12-02 20:06:08,839 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 20:06:08,840 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 20:06:08,840 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 20:06:08,840 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 20:06:08,849 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:08" (1/1) ... [2023-12-02 20:06:08,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:08" (1/1) ... [2023-12-02 20:06:08,853 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:08" (1/1) ... [2023-12-02 20:06:08,853 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:08" (1/1) ... [2023-12-02 20:06:08,865 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:08" (1/1) ... [2023-12-02 20:06:08,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:08" (1/1) ... [2023-12-02 20:06:08,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:08" (1/1) ... [2023-12-02 20:06:08,873 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:08" (1/1) ... [2023-12-02 20:06:08,878 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 20:06:08,879 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 20:06:08,879 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 20:06:08,879 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 20:06:08,880 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:08" (1/1) ... [2023-12-02 20:06:08,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:06:08,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:06:08,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 20:06:08,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 20:06:08,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 20:06:08,944 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 20:06:08,944 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 20:06:08,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 20:06:08,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 20:06:08,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 20:06:09,031 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 20:06:09,034 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 20:06:09,302 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 20:06:09,442 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 20:06:09,442 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 20:06:09,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:06:09 BoogieIcfgContainer [2023-12-02 20:06:09,444 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 20:06:09,447 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 20:06:09,447 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 20:06:09,450 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 20:06:09,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:06:08" (1/3) ... [2023-12-02 20:06:09,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2964b4ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:06:09, skipping insertion in model container [2023-12-02 20:06:09,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:08" (2/3) ... [2023-12-02 20:06:09,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2964b4ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:06:09, skipping insertion in model container [2023-12-02 20:06:09,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:06:09" (3/3) ... [2023-12-02 20:06:09,453 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-48.i [2023-12-02 20:06:09,473 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 20:06:09,473 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 20:06:09,523 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 20:06:09,528 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;@7d98faf8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 20:06:09,528 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 20:06:09,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 20:06:09,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 20:06:09,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:06:09,542 INFO L195 NwaCegarLoop]: trace histogram [20, 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 20:06:09,542 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 20:06:09,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:06:09,546 INFO L85 PathProgramCache]: Analyzing trace with hash -527181063, now seen corresponding path program 1 times [2023-12-02 20:06:09,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:06:09,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453472084] [2023-12-02 20:06:09,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:06:09,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:06:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 20:06:09,849 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 20:06:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 20:06:10,005 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 20:06:10,006 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 20:06:10,008 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 20:06:10,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 20:06:10,013 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 20:06:10,017 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 20:06:10,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:06:10 BoogieIcfgContainer [2023-12-02 20:06:10,099 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 20:06:10,100 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 20:06:10,100 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 20:06:10,100 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 20:06:10,101 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:06:09" (3/4) ... [2023-12-02 20:06:10,103 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 20:06:10,104 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 20:06:10,105 INFO L158 Benchmark]: Toolchain (without parser) took 1607.71ms. Allocated memory is still 201.3MB. Free memory was 161.5MB in the beginning and 165.1MB in the end (delta: -3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 20:06:10,106 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 20:06:10,106 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.58ms. Allocated memory is still 201.3MB. Free memory was 161.5MB in the beginning and 146.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 20:06:10,107 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.22ms. Allocated memory is still 201.3MB. Free memory was 146.8MB in the beginning and 143.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 20:06:10,108 INFO L158 Benchmark]: Boogie Preprocessor took 38.31ms. Allocated memory is still 201.3MB. Free memory was 143.8MB in the beginning and 141.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 20:06:10,108 INFO L158 Benchmark]: RCFGBuilder took 565.63ms. Allocated memory is still 201.3MB. Free memory was 141.7MB in the beginning and 104.9MB in the end (delta: 36.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-12-02 20:06:10,109 INFO L158 Benchmark]: TraceAbstraction took 652.51ms. Allocated memory is still 201.3MB. Free memory was 104.9MB in the beginning and 165.1MB in the end (delta: -60.2MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. [2023-12-02 20:06:10,110 INFO L158 Benchmark]: Witness Printer took 4.27ms. Allocated memory is still 201.3MB. Free memory was 165.1MB in the beginning and 165.1MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 20:06:10,113 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.58ms. Allocated memory is still 201.3MB. Free memory was 161.5MB in the beginning and 146.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.22ms. Allocated memory is still 201.3MB. Free memory was 146.8MB in the beginning and 143.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.31ms. Allocated memory is still 201.3MB. Free memory was 143.8MB in the beginning and 141.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 565.63ms. Allocated memory is still 201.3MB. Free memory was 141.7MB in the beginning and 104.9MB in the end (delta: 36.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 652.51ms. Allocated memory is still 201.3MB. Free memory was 104.9MB in the beginning and 165.1MB in the end (delta: -60.2MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. * Witness Printer took 4.27ms. Allocated memory is still 201.3MB. Free memory was 165.1MB in the beginning and 165.1MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 46. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 10; [L23] unsigned char var_1_2 = 1; [L24] double var_1_3 = 0.0; [L25] double var_1_4 = 128.2; [L26] double var_1_5 = 50.1; [L27] double var_1_6 = 64.5; [L28] unsigned short int var_1_7 = 1; [L29] unsigned char var_1_8 = 5; [L30] double var_1_9 = 15.35; [L31] unsigned char var_1_10 = 10; [L32] unsigned char var_1_11 = 2; [L33] signed long int var_1_12 = 32; [L34] signed long int var_1_13 = 256; [L35] signed char var_1_14 = 1; [L36] unsigned char var_1_15 = 128; [L37] unsigned char var_1_16 = 0; [L38] signed char var_1_17 = -64; [L39] unsigned short int var_1_18 = 64; [L40] unsigned char last_1_var_1_8 = 5; [L41] unsigned short int last_1_var_1_18 = 64; [L141] isInitial = 1 [L142] FCALL initially() [L143] int k_loop; [L144] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=0, var_1_4=641/5, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L144] COND TRUE k_loop < 1 [L145] CALL updateLastVariables() [L133] last_1_var_1_8 = var_1_8 [L134] last_1_var_1_18 = var_1_18 [L145] RET updateLastVariables() [L146] CALL updateVariables() [L99] var_1_2 = __VERIFIER_nondet_uchar() [L100] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_3=0, var_1_4=641/5, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_3=0, var_1_4=641/5, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L101] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=0, var_1_4=641/5, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_3=0, var_1_4=641/5, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L102] var_1_3 = __VERIFIER_nondet_double() [L103] CALL assume_abort_if_not((var_1_3 >= 4611686.018427387900e+12F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_4=641/5, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not((var_1_3 >= 4611686.018427387900e+12F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_4=641/5, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L104] var_1_4 = __VERIFIER_nondet_double() [L105] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427387900e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427387900e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_5=501/10, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L106] var_1_5 = __VERIFIER_nondet_double() [L107] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_6=129/2, var_1_7=1, var_1_8=5, var_1_9=307/20] [L108] var_1_6 = __VERIFIER_nondet_double() [L109] CALL assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=1, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=1, var_1_8=5, var_1_9=307/20] [L110] var_1_7 = __VERIFIER_nondet_ushort() [L111] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_8=5, var_1_9=307/20] [L112] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5, var_1_9=307/20] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5, var_1_9=307/20] [L113] var_1_9 = __VERIFIER_nondet_double() [L114] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L115] CALL assume_abort_if_not(var_1_9 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(var_1_9 != 0.0F) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=10, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L116] var_1_10 = __VERIFIER_nondet_uchar() [L117] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L118] CALL assume_abort_if_not(var_1_10 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not(var_1_10 <= 254) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_11=2, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L119] var_1_11 = __VERIFIER_nondet_uchar() [L120] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L121] CALL assume_abort_if_not(var_1_11 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_11=125, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L20] COND FALSE !(!cond) [L121] RET assume_abort_if_not(var_1_11 <= 254) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_11=125, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L122] var_1_15 = __VERIFIER_nondet_uchar() [L123] CALL assume_abort_if_not(var_1_15 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_11=125, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L20] COND FALSE !(!cond) [L123] RET assume_abort_if_not(var_1_15 >= 127) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_11=125, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L124] CALL assume_abort_if_not(var_1_15 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_11=125, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L20] COND FALSE !(!cond) [L124] RET assume_abort_if_not(var_1_15 <= 255) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_11=125, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=0, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L125] var_1_16 = __VERIFIER_nondet_uchar() [L126] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_11=125, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L20] COND FALSE !(!cond) [L126] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_11=125, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L127] CALL assume_abort_if_not(var_1_16 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_11=125, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=127, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L20] COND FALSE !(!cond) [L127] RET assume_abort_if_not(var_1_16 <= 127) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_11=125, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=127, var_1_17=-64, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L128] var_1_17 = __VERIFIER_nondet_char() [L129] CALL assume_abort_if_not(var_1_17 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_11=125, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=127, var_1_17=1, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L20] COND FALSE !(!cond) [L129] RET assume_abort_if_not(var_1_17 >= -126) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_11=125, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=127, var_1_17=1, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L130] CALL assume_abort_if_not(var_1_17 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_11=125, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=127, var_1_17=1, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L20] COND FALSE !(!cond) [L130] RET assume_abort_if_not(var_1_17 <= 126) VAL [isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_11=125, var_1_12=32, var_1_13=256, var_1_14=1, var_1_15=128, var_1_16=127, var_1_17=1, var_1_18=64, var_1_1=10, var_1_2=1, var_1_7=4, var_1_8=5] [L146] RET updateVariables() [L147] CALL step() [L45] COND TRUE \read(var_1_2) [L46] COND FALSE !(((var_1_3 - var_1_4) - var_1_5) == (15.75 - var_1_6)) [L49] var_1_1 = last_1_var_1_8 [L54] unsigned short int stepLocal_0 = var_1_1; [L55] COND FALSE !(var_1_6 > (var_1_5 / ((((var_1_3) > (var_1_9)) ? (var_1_3) : (var_1_9))))) [L58] COND FALSE !(stepLocal_0 <= var_1_7) [L61] var_1_8 = var_1_11 [L64] COND TRUE \read(var_1_2) [L65] COND FALSE !(-128 > var_1_10) [L75] signed long int stepLocal_1 = ((((var_1_15 - var_1_16)) > (var_1_12)) ? ((var_1_15 - var_1_16)) : (var_1_12)); [L76] COND FALSE !(var_1_10 == stepLocal_1) [L79] var_1_14 = var_1_17 [L81] COND TRUE \read(var_1_2) [L82] var_1_13 = var_1_11 [L84] COND TRUE var_1_8 == var_1_13 [L85] var_1_18 = (var_1_10 + ((((var_1_14) < (var_1_16)) ? (var_1_14) : (var_1_16)))) [L147] RET step() [L148] CALL, EXPR property() [L137-L138] return (((((var_1_2 ? ((((var_1_3 - var_1_4) - var_1_5) == (15.75 - var_1_6)) ? (var_1_1 == ((unsigned short int) (5 + last_1_var_1_8))) : (var_1_1 == ((unsigned short int) last_1_var_1_8))) : (var_1_1 == ((unsigned short int) 1))) && ((var_1_6 > (var_1_5 / ((((var_1_3) > (var_1_9)) ? (var_1_3) : (var_1_9))))) ? (var_1_8 == ((unsigned char) ((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10))))) : ((var_1_1 <= var_1_7) ? (var_1_8 == ((unsigned char) var_1_10)) : (var_1_8 == ((unsigned char) var_1_11))))) && (var_1_2 ? ((-128 > var_1_10) ? ((var_1_3 >= (2.75 / var_1_9)) ? (var_1_12 == ((signed long int) (var_1_11 + (last_1_var_1_18 + var_1_10)))) : (var_1_12 == ((signed long int) last_1_var_1_18))) : 1) : (var_1_12 == ((signed long int) last_1_var_1_18)))) && (var_1_2 ? (var_1_13 == ((signed long int) var_1_11)) : 1)) && ((var_1_10 == (((((var_1_15 - var_1_16)) > (var_1_12)) ? ((var_1_15 - var_1_16)) : (var_1_12)))) ? (var_1_14 == ((signed char) ((((var_1_17) < 0 ) ? -(var_1_17) : (var_1_17))))) : (var_1_14 == ((signed char) var_1_17)))) && ((var_1_8 == var_1_13) ? (var_1_18 == ((unsigned short int) (var_1_10 + ((((var_1_14) < (var_1_16)) ? (var_1_14) : (var_1_16)))))) : ((last_1_var_1_18 != var_1_16) ? ((-256 >= var_1_13) ? (var_1_18 == ((unsigned short int) var_1_16)) : (var_1_18 == ((unsigned short int) var_1_15))) : (var_1_18 == ((unsigned short int) var_1_10)))) ; [L148] RET, EXPR property() [L148] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_11=125, var_1_12=32, var_1_13=125, var_1_14=1, var_1_15=128, var_1_16=127, var_1_17=1, var_1_18=127, var_1_1=5, var_1_2=1, var_1_7=4, var_1_8=125] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_18=64, last_1_var_1_8=5, var_1_10=126, var_1_11=125, var_1_12=32, var_1_13=125, var_1_14=1, var_1_15=128, var_1_16=127, var_1_17=1, var_1_18=127, var_1_1=5, var_1_2=1, var_1_7=4, var_1_8=125] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 20, 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=41occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 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 20:06:10,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-48.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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 9437d1cfddee7218df8fa3dfbeae56bca9eead9fe5750ca345ccb47639179368 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 20:06:12,005 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 20:06:12,079 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 20:06:12,085 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 20:06:12,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 20:06:12,111 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 20:06:12,111 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 20:06:12,112 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 20:06:12,112 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 20:06:12,113 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 20:06:12,113 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 20:06:12,114 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 20:06:12,115 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 20:06:12,115 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 20:06:12,116 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 20:06:12,116 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 20:06:12,117 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 20:06:12,118 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 20:06:12,118 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 20:06:12,119 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 20:06:12,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 20:06:12,120 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 20:06:12,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 20:06:12,121 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 20:06:12,121 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 20:06:12,122 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 20:06:12,122 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 20:06:12,123 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 20:06:12,123 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 20:06:12,123 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 20:06:12,124 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 20:06:12,124 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 20:06:12,125 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 20:06:12,125 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 20:06:12,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:06:12,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 20:06:12,126 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 20:06:12,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 20:06:12,126 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 20:06:12,126 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 20:06:12,126 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 20:06:12,127 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 20:06:12,127 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 20:06:12,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 20:06:12,127 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_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9437d1cfddee7218df8fa3dfbeae56bca9eead9fe5750ca345ccb47639179368 [2023-12-02 20:06:12,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 20:06:12,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 20:06:12,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 20:06:12,428 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 20:06:12,429 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 20:06:12,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-48.i [2023-12-02 20:06:15,176 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 20:06:15,398 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 20:06:15,399 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-48.i [2023-12-02 20:06:15,409 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/data/0f94d6769/8b38ac43003740a487c11ae6650ed3d7/FLAGcd2bebea3 [2023-12-02 20:06:15,424 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/data/0f94d6769/8b38ac43003740a487c11ae6650ed3d7 [2023-12-02 20:06:15,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 20:06:15,429 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 20:06:15,430 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 20:06:15,430 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 20:06:15,435 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 20:06:15,436 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:06:15" (1/1) ... [2023-12-02 20:06:15,437 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@de2b640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:15, skipping insertion in model container [2023-12-02 20:06:15,438 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:06:15" (1/1) ... [2023-12-02 20:06:15,470 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 20:06:15,617 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_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-48.i[915,928] [2023-12-02 20:06:15,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:06:15,687 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 20:06:15,701 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_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-48.i[915,928] [2023-12-02 20:06:15,732 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:06:15,750 INFO L206 MainTranslator]: Completed translation [2023-12-02 20:06:15,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:15 WrapperNode [2023-12-02 20:06:15,751 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 20:06:15,752 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 20:06:15,752 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 20:06:15,752 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 20:06:15,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:15" (1/1) ... [2023-12-02 20:06:15,773 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:15" (1/1) ... [2023-12-02 20:06:15,801 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 147 [2023-12-02 20:06:15,802 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 20:06:15,802 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 20:06:15,803 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 20:06:15,803 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 20:06:15,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:15" (1/1) ... [2023-12-02 20:06:15,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:15" (1/1) ... [2023-12-02 20:06:15,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:15" (1/1) ... [2023-12-02 20:06:15,818 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:15" (1/1) ... [2023-12-02 20:06:15,829 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:15" (1/1) ... [2023-12-02 20:06:15,834 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:15" (1/1) ... [2023-12-02 20:06:15,837 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:15" (1/1) ... [2023-12-02 20:06:15,839 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:15" (1/1) ... [2023-12-02 20:06:15,844 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 20:06:15,845 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 20:06:15,845 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 20:06:15,845 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 20:06:15,846 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:15" (1/1) ... [2023-12-02 20:06:15,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:06:15,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:06:15,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 20:06:15,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 20:06:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 20:06:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 20:06:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 20:06:15,905 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 20:06:15,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 20:06:15,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 20:06:15,990 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 20:06:15,993 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 20:06:30,263 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 20:06:30,309 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 20:06:30,310 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 20:06:30,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:06:30 BoogieIcfgContainer [2023-12-02 20:06:30,310 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 20:06:30,313 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 20:06:30,313 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 20:06:30,316 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 20:06:30,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:06:15" (1/3) ... [2023-12-02 20:06:30,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cfa6274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:06:30, skipping insertion in model container [2023-12-02 20:06:30,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:06:15" (2/3) ... [2023-12-02 20:06:30,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cfa6274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:06:30, skipping insertion in model container [2023-12-02 20:06:30,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:06:30" (3/3) ... [2023-12-02 20:06:30,319 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-48.i [2023-12-02 20:06:30,336 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 20:06:30,336 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 20:06:30,384 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 20:06:30,391 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;@7078f4de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 20:06:30,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 20:06:30,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 37 states have internal predecessors, (53), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 20:06:30,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-02 20:06:30,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:06:30,409 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 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 20:06:30,409 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 20:06:30,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:06:30,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1835224988, now seen corresponding path program 1 times [2023-12-02 20:06:30,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 20:06:30,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886521055] [2023-12-02 20:06:30,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:06:30,429 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 20:06:30,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 20:06:30,431 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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 20:06:30,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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 20:06:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:06:32,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 20:06:32,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:06:32,151 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2023-12-02 20:06:32,151 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:06:32,152 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 20:06:32,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886521055] [2023-12-02 20:06:32,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886521055] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:06:32,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:06:32,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:06:32,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370473755] [2023-12-02 20:06:32,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:06:32,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 20:06:32,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 20:06:32,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 20:06:32,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 20:06:32,196 INFO L87 Difference]: Start difference. First operand has 59 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 37 states have internal predecessors, (53), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 20:06:35,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 20:06:36,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:06:36,210 INFO L93 Difference]: Finished difference Result 116 states and 203 transitions. [2023-12-02 20:06:36,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:06:36,213 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 125 [2023-12-02 20:06:36,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:06:36,221 INFO L225 Difference]: With dead ends: 116 [2023-12-02 20:06:36,221 INFO L226 Difference]: Without dead ends: 56 [2023-12-02 20:06:36,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 124 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 20:06:36,227 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:06:36,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2023-12-02 20:06:36,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-12-02 20:06:36,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-12-02 20:06:36,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 20:06:36,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 85 transitions. [2023-12-02 20:06:36,272 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 85 transitions. Word has length 125 [2023-12-02 20:06:36,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:06:36,272 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 85 transitions. [2023-12-02 20:06:36,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 20:06:36,273 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 85 transitions. [2023-12-02 20:06:36,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-02 20:06:36,276 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:06:36,276 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 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 20:06:36,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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 20:06:36,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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 20:06:36,477 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 20:06:36,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:06:36,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1891974252, now seen corresponding path program 1 times [2023-12-02 20:06:36,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 20:06:36,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248999474] [2023-12-02 20:06:36,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:06:36,479 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 20:06:36,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 20:06:36,480 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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 20:06:36,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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 20:06:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:06:38,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 20:06:38,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:06:38,261 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 20:06:38,262 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:06:38,262 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 20:06:38,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248999474] [2023-12-02 20:06:38,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248999474] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:06:38,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:06:38,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 20:06:38,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886904952] [2023-12-02 20:06:38,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:06:38,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:06:38,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 20:06:38,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:06:38,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:06:38,268 INFO L87 Difference]: Start difference. First operand 56 states and 85 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 20:06:41,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 20:06:43,867 WARN L539 Checker$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 20:06:45,875 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 20:06:46,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:06:46,320 INFO L93 Difference]: Finished difference Result 127 states and 193 transitions. [2023-12-02 20:06:46,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:06:46,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 125 [2023-12-02 20:06:46,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:06:46,324 INFO L225 Difference]: With dead ends: 127 [2023-12-02 20:06:46,325 INFO L226 Difference]: Without dead ends: 72 [2023-12-02 20:06:46,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:06:46,328 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 16 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:06:46,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 152 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2023-12-02 20:06:46,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-12-02 20:06:46,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 63. [2023-12-02 20:06:46,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 41 states have internal predecessors, (55), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 20:06:46,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 95 transitions. [2023-12-02 20:06:46,342 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 95 transitions. Word has length 125 [2023-12-02 20:06:46,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:06:46,345 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 95 transitions. [2023-12-02 20:06:46,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 20:06:46,345 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 95 transitions. [2023-12-02 20:06:46,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-02 20:06:46,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:06:46,348 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 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 20:06:46,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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 20:06:46,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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 20:06:46,549 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 20:06:46,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:06:46,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1890127210, now seen corresponding path program 1 times [2023-12-02 20:06:46,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 20:06:46,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41103141] [2023-12-02 20:06:46,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:06:46,550 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 20:06:46,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 20:06:46,551 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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 20:06:46,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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 20:06:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:06:48,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 20:06:48,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:06:50,399 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-02 20:06:50,399 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:06:50,400 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 20:06:50,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41103141] [2023-12-02 20:06:50,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41103141] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:06:50,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:06:50,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:06:50,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544575359] [2023-12-02 20:06:50,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:06:50,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:06:50,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 20:06:50,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:06:50,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:06:50,402 INFO L87 Difference]: Start difference. First operand 63 states and 95 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 20:06:53,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 20:06:57,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 20:06:59,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 20:07:00,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:07:00,350 INFO L93 Difference]: Finished difference Result 187 states and 283 transitions. [2023-12-02 20:07:00,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:07:00,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 125 [2023-12-02 20:07:00,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:07:00,354 INFO L225 Difference]: With dead ends: 187 [2023-12-02 20:07:00,355 INFO L226 Difference]: Without dead ends: 125 [2023-12-02 20:07:00,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:07:00,357 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 18 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-12-02 20:07:00,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 155 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 3 Unknown, 0 Unchecked, 9.9s Time] [2023-12-02 20:07:00,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-12-02 20:07:00,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2023-12-02 20:07:00,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 80 states have (on average 1.325) internal successors, (106), 80 states have internal predecessors, (106), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-02 20:07:00,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 186 transitions. [2023-12-02 20:07:00,386 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 186 transitions. Word has length 125 [2023-12-02 20:07:00,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:07:00,387 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 186 transitions. [2023-12-02 20:07:00,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 20:07:00,388 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 186 transitions. [2023-12-02 20:07:00,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-02 20:07:00,390 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:07:00,391 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 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 20:07:00,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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 20:07:00,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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 20:07:00,595 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 20:07:00,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:07:00,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1535219104, now seen corresponding path program 1 times [2023-12-02 20:07:00,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 20:07:00,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121379246] [2023-12-02 20:07:00,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:07:00,597 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 20:07:00,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 20:07:00,598 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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 20:07:00,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e11e62-06fc-4b1b-b9ba-f5c244fa94c4/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 (5)] Waiting until timeout for monitored process [2023-12-02 20:07:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:07:02,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 20:07:02,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:07:10,353 WARN L293 SmtUtils]: Spent 5.86s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:07:16,208 WARN L293 SmtUtils]: Spent 5.85s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:07:22,094 WARN L293 SmtUtils]: Spent 5.88s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:07:31,881 WARN L293 SmtUtils]: Spent 5.89s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:07:41,268 WARN L293 SmtUtils]: Spent 5.89s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:07:49,013 WARN L293 SmtUtils]: Spent 5.86s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:07:57,176 WARN L854 $PredicateComparison]: unable to prove that (and (= (_ bv256 32) c_~var_1_13~0) (= ((_ extract 7 0) ((_ zero_extend 24) c_~var_1_10~0)) c_~var_1_8~0) (= (_ bv0 8) c_~var_1_2~0) (let ((.cse0 (fp.gt c_~var_1_3~0 c_~var_1_9~0))) (or (and (not .cse0) (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_9~0))) (and (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_3~0)) .cse0))) (= c_~var_1_1~0 (_ bv1 16))) is different from false [2023-12-02 20:07:59,587 WARN L876 $PredicateComparison]: unable to prove that (and (= (_ bv256 32) c_~var_1_13~0) (= ((_ extract 7 0) ((_ zero_extend 24) c_~var_1_10~0)) c_~var_1_8~0) (= (_ bv0 8) c_~var_1_2~0) (let ((.cse0 (fp.gt c_~var_1_3~0 c_~var_1_9~0))) (or (and (not .cse0) (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_9~0))) (and (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_3~0)) .cse0))) (= c_~var_1_1~0 (_ bv1 16))) is different from true [2023-12-02 20:08:05,521 WARN L293 SmtUtils]: Spent 5.92s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:08:11,416 WARN L293 SmtUtils]: Spent 5.89s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:08:17,297 WARN L293 SmtUtils]: Spent 5.88s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:08:23,157 WARN L293 SmtUtils]: Spent 5.86s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:08:33,523 WARN L293 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:08:43,827 WARN L293 SmtUtils]: Spent 5.88s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:08:49,893 WARN L293 SmtUtils]: Spent 6.07s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:08:52,313 WARN L854 $PredicateComparison]: unable to prove that (and (= (_ bv256 32) c_~var_1_13~0) (= ((_ extract 7 0) ((_ zero_extend 24) c_~var_1_10~0)) c_~var_1_8~0) (= (_ bv0 8) c_~var_1_2~0) (let ((.cse0 (fp.gt c_~var_1_3~0 c_~var_1_9~0))) (or (and (not .cse0) (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_9~0))) (and (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_3~0)) .cse0))) (= ((_ zero_extend 16) c_~last_1_var_1_18~0) c_~var_1_12~0) (= c_~var_1_1~0 (_ bv1 16))) is different from false [2023-12-02 20:08:54,729 WARN L876 $PredicateComparison]: unable to prove that (and (= (_ bv256 32) c_~var_1_13~0) (= ((_ extract 7 0) ((_ zero_extend 24) c_~var_1_10~0)) c_~var_1_8~0) (= (_ bv0 8) c_~var_1_2~0) (let ((.cse0 (fp.gt c_~var_1_3~0 c_~var_1_9~0))) (or (and (not .cse0) (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_9~0))) (and (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_3~0)) .cse0))) (= ((_ zero_extend 16) c_~last_1_var_1_18~0) c_~var_1_12~0) (= c_~var_1_1~0 (_ bv1 16))) is different from true [2023-12-02 20:09:00,754 WARN L293 SmtUtils]: Spent 6.00s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:09:06,667 WARN L293 SmtUtils]: Spent 5.91s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:09:12,586 WARN L293 SmtUtils]: Spent 5.92s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:09:18,510 WARN L293 SmtUtils]: Spent 5.92s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:09:28,834 WARN L293 SmtUtils]: Spent 5.90s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:09:39,203 WARN L293 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:09:45,186 WARN L293 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:09:51,114 WARN L293 SmtUtils]: Spent 5.93s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:09:57,281 WARN L293 SmtUtils]: Spent 6.17s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:10:03,187 WARN L293 SmtUtils]: Spent 5.91s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:10:09,207 WARN L293 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:10:11,654 WARN L854 $PredicateComparison]: unable to prove that (and (= (_ bv256 32) c_~var_1_13~0) (= ((_ extract 7 0) ((_ zero_extend 24) c_~var_1_10~0)) c_~var_1_8~0) (= (_ bv0 8) c_~var_1_2~0) (let ((.cse0 (fp.gt c_~var_1_3~0 c_~var_1_9~0))) (or (and (not .cse0) (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_9~0))) (and (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_3~0)) .cse0))) (= ((_ zero_extend 16) c_~last_1_var_1_18~0) c_~var_1_12~0) (let ((.cse2 (bvadd (bvneg ((_ zero_extend 24) c_~var_1_16~0)) ((_ zero_extend 24) c_~var_1_15~0)))) (let ((.cse1 (bvsgt .cse2 c_~var_1_12~0))) (or (and .cse1 (= .cse2 |c_ULTIMATE.start_step_~stepLocal_1~0#1|)) (and (= c_~var_1_12~0 |c_ULTIMATE.start_step_~stepLocal_1~0#1|) (not .cse1))))) (= c_~var_1_1~0 (_ bv1 16))) is different from false [2023-12-02 20:10:14,066 WARN L876 $PredicateComparison]: unable to prove that (and (= (_ bv256 32) c_~var_1_13~0) (= ((_ extract 7 0) ((_ zero_extend 24) c_~var_1_10~0)) c_~var_1_8~0) (= (_ bv0 8) c_~var_1_2~0) (let ((.cse0 (fp.gt c_~var_1_3~0 c_~var_1_9~0))) (or (and (not .cse0) (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_9~0))) (and (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_3~0)) .cse0))) (= ((_ zero_extend 16) c_~last_1_var_1_18~0) c_~var_1_12~0) (let ((.cse2 (bvadd (bvneg ((_ zero_extend 24) c_~var_1_16~0)) ((_ zero_extend 24) c_~var_1_15~0)))) (let ((.cse1 (bvsgt .cse2 c_~var_1_12~0))) (or (and .cse1 (= .cse2 |c_ULTIMATE.start_step_~stepLocal_1~0#1|)) (and (= c_~var_1_12~0 |c_ULTIMATE.start_step_~stepLocal_1~0#1|) (not .cse1))))) (= c_~var_1_1~0 (_ bv1 16))) is different from true [2023-12-02 20:10:20,067 WARN L293 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:10:26,037 WARN L293 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:10:31,955 WARN L293 SmtUtils]: Spent 5.92s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:10:37,899 WARN L293 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:10:43,811 WARN L293 SmtUtils]: Spent 5.91s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:10:49,778 WARN L293 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:10:55,855 WARN L293 SmtUtils]: Spent 6.08s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:11:01,795 WARN L293 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:11:12,167 WARN L293 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:11:22,527 WARN L293 SmtUtils]: Spent 5.93s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:11:28,471 WARN L293 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:11:34,400 WARN L293 SmtUtils]: Spent 5.93s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:11:40,496 WARN L293 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:11:46,432 WARN L293 SmtUtils]: Spent 5.93s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:11:52,391 WARN L293 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:11:54,820 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ zero_extend 24) c_~var_1_10~0))) (and (= (_ bv256 32) c_~var_1_13~0) (let ((.cse1 ((_ sign_extend 24) c_~var_1_17~0))) (let ((.cse0 (bvslt .cse1 (_ bv0 32)))) (or (and .cse0 (= ((_ extract 7 0) (bvneg .cse1)) c_~var_1_14~0)) (and (= ((_ extract 7 0) .cse1) c_~var_1_14~0) (not .cse0))))) (let ((.cse4 (bvadd (bvneg ((_ zero_extend 24) c_~var_1_16~0)) ((_ zero_extend 24) c_~var_1_15~0)))) (let ((.cse3 (bvsgt .cse4 c_~var_1_12~0))) (or (and (= c_~var_1_12~0 .cse2) (not .cse3)) (and .cse3 (= .cse4 .cse2))))) (= ((_ extract 7 0) .cse2) c_~var_1_8~0) (= (_ bv0 8) c_~var_1_2~0) (let ((.cse5 (fp.gt c_~var_1_3~0 c_~var_1_9~0))) (or (and (not .cse5) (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_9~0))) (and (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_3~0)) .cse5))) (= ((_ zero_extend 16) c_~last_1_var_1_18~0) c_~var_1_12~0) (= c_~var_1_1~0 (_ bv1 16)))) is different from false [2023-12-02 20:11:57,237 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ zero_extend 24) c_~var_1_10~0))) (and (= (_ bv256 32) c_~var_1_13~0) (let ((.cse1 ((_ sign_extend 24) c_~var_1_17~0))) (let ((.cse0 (bvslt .cse1 (_ bv0 32)))) (or (and .cse0 (= ((_ extract 7 0) (bvneg .cse1)) c_~var_1_14~0)) (and (= ((_ extract 7 0) .cse1) c_~var_1_14~0) (not .cse0))))) (let ((.cse4 (bvadd (bvneg ((_ zero_extend 24) c_~var_1_16~0)) ((_ zero_extend 24) c_~var_1_15~0)))) (let ((.cse3 (bvsgt .cse4 c_~var_1_12~0))) (or (and (= c_~var_1_12~0 .cse2) (not .cse3)) (and .cse3 (= .cse4 .cse2))))) (= ((_ extract 7 0) .cse2) c_~var_1_8~0) (= (_ bv0 8) c_~var_1_2~0) (let ((.cse5 (fp.gt c_~var_1_3~0 c_~var_1_9~0))) (or (and (not .cse5) (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_9~0))) (and (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_3~0)) .cse5))) (= ((_ zero_extend 16) c_~last_1_var_1_18~0) c_~var_1_12~0) (= c_~var_1_1~0 (_ bv1 16)))) is different from true [2023-12-02 20:12:03,193 WARN L293 SmtUtils]: Spent 5.93s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:12:09,125 WARN L293 SmtUtils]: Spent 5.93s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:12:15,079 WARN L293 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:12:21,012 WARN L293 SmtUtils]: Spent 5.93s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:12:26,948 WARN L293 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:12:32,895 WARN L293 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:12:38,832 WARN L293 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:12:44,814 WARN L293 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:12:54,275 WARN L293 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:13:04,666 WARN L293 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:13:10,622 WARN L293 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:13:16,578 WARN L293 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:13:22,564 WARN L293 SmtUtils]: Spent 5.99s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:13:28,505 WARN L293 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:13:34,464 WARN L293 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:13:40,431 WARN L293 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:13:46,389 WARN L293 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:13:52,358 WARN L293 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:13:58,311 WARN L293 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:14:04,257 WARN L293 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:14:10,214 WARN L293 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:14:16,178 WARN L293 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:14:22,147 WARN L293 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:14:32,555 WARN L293 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:14:42,937 WARN L293 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:14:48,863 WARN L293 SmtUtils]: Spent 5.93s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:14:54,820 WARN L293 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:15:00,763 WARN L293 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:15:06,718 WARN L293 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:15:12,684 WARN L293 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:15:18,651 WARN L293 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:15:24,620 WARN L293 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:15:30,576 WARN L293 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:15:36,524 WARN L293 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:15:42,468 WARN L293 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:15:48,444 WARN L293 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:15:54,427 WARN L293 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:16:00,397 WARN L293 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:16:06,362 WARN L293 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:16:16,748 WARN L293 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:16:27,206 WARN L293 SmtUtils]: Spent 6.00s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:16:33,228 WARN L293 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:16:39,268 WARN L293 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:16:45,333 WARN L293 SmtUtils]: Spent 6.06s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:16:51,371 WARN L293 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:16:57,384 WARN L293 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:17:03,357 WARN L293 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 20:17:05,807 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ zero_extend 24) c_~var_1_16~0)) (.cse4 ((_ zero_extend 24) c_~var_1_10~0)) (.cse3 ((_ zero_extend 16) c_~last_1_var_1_18~0))) (and (= (_ bv256 32) c_~var_1_13~0) (let ((.cse1 ((_ sign_extend 24) c_~var_1_17~0))) (let ((.cse0 (bvslt .cse1 (_ bv0 32)))) (or (and .cse0 (= ((_ extract 7 0) (bvneg .cse1)) c_~var_1_14~0)) (and (= ((_ extract 7 0) .cse1) c_~var_1_14~0) (not .cse0))))) (= .cse2 .cse3) (let ((.cse6 (bvadd (bvneg .cse2) ((_ zero_extend 24) c_~var_1_15~0)))) (let ((.cse5 (bvsgt .cse6 c_~var_1_12~0))) (or (and (= c_~var_1_12~0 .cse4) (not .cse5)) (and .cse5 (= .cse6 .cse4))))) (= ((_ extract 7 0) .cse4) c_~var_1_8~0) (= c_~var_1_18~0 ((_ zero_extend 8) c_~var_1_10~0)) (= (_ bv0 8) c_~var_1_2~0) (let ((.cse7 (fp.gt c_~var_1_3~0 c_~var_1_9~0))) (or (and (not .cse7) (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_9~0))) (and (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_3~0)) .cse7))) (= .cse3 c_~var_1_12~0) (= c_~var_1_1~0 (_ bv1 16)))) is different from false [2023-12-02 20:17:08,240 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ zero_extend 24) c_~var_1_16~0)) (.cse4 ((_ zero_extend 24) c_~var_1_10~0)) (.cse3 ((_ zero_extend 16) c_~last_1_var_1_18~0))) (and (= (_ bv256 32) c_~var_1_13~0) (let ((.cse1 ((_ sign_extend 24) c_~var_1_17~0))) (let ((.cse0 (bvslt .cse1 (_ bv0 32)))) (or (and .cse0 (= ((_ extract 7 0) (bvneg .cse1)) c_~var_1_14~0)) (and (= ((_ extract 7 0) .cse1) c_~var_1_14~0) (not .cse0))))) (= .cse2 .cse3) (let ((.cse6 (bvadd (bvneg .cse2) ((_ zero_extend 24) c_~var_1_15~0)))) (let ((.cse5 (bvsgt .cse6 c_~var_1_12~0))) (or (and (= c_~var_1_12~0 .cse4) (not .cse5)) (and .cse5 (= .cse6 .cse4))))) (= ((_ extract 7 0) .cse4) c_~var_1_8~0) (= c_~var_1_18~0 ((_ zero_extend 8) c_~var_1_10~0)) (= (_ bv0 8) c_~var_1_2~0) (let ((.cse7 (fp.gt c_~var_1_3~0 c_~var_1_9~0))) (or (and (not .cse7) (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_9~0))) (and (fp.gt c_~var_1_6~0 (fp.div c_currentRoundingMode c_~var_1_5~0 c_~var_1_3~0)) .cse7))) (= .cse3 c_~var_1_12~0) (= c_~var_1_1~0 (_ bv1 16)))) is different from true