./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-36.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/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_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-36.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/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_d426d7e7-ce4d-48ed-afc8-3662b38c8897/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 a35769e60951934d6bdd49ba63ee6bf96f7f37fd27fc4fb212883b40db8837ed --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:16:47,781 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:16:47,864 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:16:47,869 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:16:47,870 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:16:47,895 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:16:47,896 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:16:47,896 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:16:47,897 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:16:47,898 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:16:47,898 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:16:47,899 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:16:47,899 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:16:47,900 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:16:47,900 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:16:47,901 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:16:47,901 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:16:47,902 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:16:47,902 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:16:47,903 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:16:47,903 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:16:47,904 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:16:47,905 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:16:47,905 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:16:47,906 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:16:47,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:16:47,907 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:16:47,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:16:47,908 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:16:47,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:16:47,908 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:16:47,909 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:16:47,909 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:16:47,910 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:16:47,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:16:47,910 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:16:47,910 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:16:47,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:16:47,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:16:47,911 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:16:47,911 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:16:47,912 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:16:47,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:16:47,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:16:47,912 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:16:47,913 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:16:47,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:16:47,913 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_d426d7e7-ce4d-48ed-afc8-3662b38c8897/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a35769e60951934d6bdd49ba63ee6bf96f7f37fd27fc4fb212883b40db8837ed [2023-12-02 13:16:48,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:16:48,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:16:48,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:16:48,165 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:16:48,166 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:16:48,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-36.i [2023-12-02 13:16:50,991 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:16:51,203 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:16:51,204 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-36.i [2023-12-02 13:16:51,213 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/data/eb56b0501/9f316154068144bf9c3f866ab007e6cd/FLAGf89852049 [2023-12-02 13:16:51,229 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/data/eb56b0501/9f316154068144bf9c3f866ab007e6cd [2023-12-02 13:16:51,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:16:51,234 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:16:51,235 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:16:51,235 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:16:51,241 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:16:51,241 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:16:51" (1/1) ... [2023-12-02 13:16:51,242 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30278d1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:51, skipping insertion in model container [2023-12-02 13:16:51,243 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:16:51" (1/1) ... [2023-12-02 13:16:51,269 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:16:51,405 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_d426d7e7-ce4d-48ed-afc8-3662b38c8897/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-36.i[915,928] [2023-12-02 13:16:51,442 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:16:51,453 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:16:51,464 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_d426d7e7-ce4d-48ed-afc8-3662b38c8897/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-36.i[915,928] [2023-12-02 13:16:51,483 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:16:51,499 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:16:51,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:51 WrapperNode [2023-12-02 13:16:51,500 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:16:51,501 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:16:51,501 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:16:51,501 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:16:51,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:51" (1/1) ... [2023-12-02 13:16:51,515 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:51" (1/1) ... [2023-12-02 13:16:51,541 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84 [2023-12-02 13:16:51,542 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:16:51,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:16:51,543 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:16:51,543 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:16:51,553 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:51" (1/1) ... [2023-12-02 13:16:51,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:51" (1/1) ... [2023-12-02 13:16:51,555 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:51" (1/1) ... [2023-12-02 13:16:51,555 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:51" (1/1) ... [2023-12-02 13:16:51,561 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:51" (1/1) ... [2023-12-02 13:16:51,565 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:51" (1/1) ... [2023-12-02 13:16:51,567 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:51" (1/1) ... [2023-12-02 13:16:51,568 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:51" (1/1) ... [2023-12-02 13:16:51,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:16:51,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:16:51,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:16:51,573 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:16:51,574 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:51" (1/1) ... [2023-12-02 13:16:51,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:16:51,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:16:51,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:16:51,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:16:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:16:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:16:51,644 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:16:51,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:16:51,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:16:51,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:16:51,711 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:16:51,714 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:16:51,914 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:16:52,016 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:16:52,016 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:16:52,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:16:52 BoogieIcfgContainer [2023-12-02 13:16:52,018 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:16:52,022 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:16:52,022 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:16:52,025 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:16:52,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:16:51" (1/3) ... [2023-12-02 13:16:52,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a3da4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:16:52, skipping insertion in model container [2023-12-02 13:16:52,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:51" (2/3) ... [2023-12-02 13:16:52,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a3da4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:16:52, skipping insertion in model container [2023-12-02 13:16:52,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:16:52" (3/3) ... [2023-12-02 13:16:52,029 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-36.i [2023-12-02 13:16:52,050 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:16:52,050 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:16:52,102 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:16:52,111 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;@7104384d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:16:52,111 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:16:52,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 13:16:52,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 13:16:52,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:16:52,127 INFO L195 NwaCegarLoop]: trace histogram [9, 1, 1, 1, 1, 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 13:16:52,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:16:52,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:16:52,134 INFO L85 PathProgramCache]: Analyzing trace with hash 672890832, now seen corresponding path program 1 times [2023-12-02 13:16:52,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:16:52,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277461503] [2023-12-02 13:16:52,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:52,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:16:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:16:52,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 13:16:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:16:52,521 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 13:16:52,523 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 13:16:52,525 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 13:16:52,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:16:52,532 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 13:16:52,537 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:16:52,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:16:52 BoogieIcfgContainer [2023-12-02 13:16:52,574 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:16:52,575 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:16:52,575 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:16:52,576 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:16:52,576 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:16:52" (3/4) ... [2023-12-02 13:16:52,579 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 13:16:52,580 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:16:52,581 INFO L158 Benchmark]: Toolchain (without parser) took 1347.73ms. Allocated memory is still 138.4MB. Free memory was 109.3MB in the beginning and 91.6MB in the end (delta: 17.7MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2023-12-02 13:16:52,582 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 107.0MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:16:52,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.63ms. Allocated memory is still 138.4MB. Free memory was 108.9MB in the beginning and 97.2MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 13:16:52,583 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.28ms. Allocated memory is still 138.4MB. Free memory was 97.2MB in the beginning and 95.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:16:52,584 INFO L158 Benchmark]: Boogie Preprocessor took 28.99ms. Allocated memory is still 138.4MB. Free memory was 95.1MB in the beginning and 93.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:16:52,585 INFO L158 Benchmark]: RCFGBuilder took 446.24ms. Allocated memory is still 138.4MB. Free memory was 93.5MB in the beginning and 75.0MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 13:16:52,585 INFO L158 Benchmark]: TraceAbstraction took 552.91ms. Allocated memory is still 138.4MB. Free memory was 74.2MB in the beginning and 92.2MB in the end (delta: -18.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:16:52,586 INFO L158 Benchmark]: Witness Printer took 5.03ms. Allocated memory is still 138.4MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:16:52,589 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 107.0MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 264.63ms. Allocated memory is still 138.4MB. Free memory was 108.9MB in the beginning and 97.2MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.28ms. Allocated memory is still 138.4MB. Free memory was 97.2MB in the beginning and 95.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.99ms. Allocated memory is still 138.4MB. Free memory was 95.1MB in the beginning and 93.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 446.24ms. Allocated memory is still 138.4MB. Free memory was 93.5MB in the beginning and 75.0MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 552.91ms. Allocated memory is still 138.4MB. Free memory was 74.2MB in the beginning and 92.2MB in the end (delta: -18.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.03ms. Allocated memory is still 138.4MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 68, overapproximation of someBinaryDOUBLEComparisonOperation at line 38. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 1; [L23] unsigned char var_1_4 = 0; [L24] float var_1_6 = 2.375; [L25] float var_1_7 = 10.8; [L26] double var_1_9 = 9.6; [L27] double var_1_12 = 128.5; [L28] unsigned char var_1_13 = 128; [L29] float var_1_14 = 8.5; [L30] unsigned char var_1_15 = 128; [L31] unsigned char last_1_var_1_13 = 128; [L81] isInitial = 1 [L82] FCALL initially() [L83] COND TRUE 1 [L84] CALL updateLastVariables() [L74] last_1_var_1_13 = var_1_13 [L84] RET updateLastVariables() [L85] CALL updateVariables() [L57] var_1_4 = __VERIFIER_nondet_uchar() [L58] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L20] COND FALSE !(!cond) [L58] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L59] CALL assume_abort_if_not(var_1_4 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L20] COND FALSE !(!cond) [L59] RET assume_abort_if_not(var_1_4 <= 1) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_6=19/8, var_1_7=54/5, var_1_9=48/5] [L60] var_1_6 = __VERIFIER_nondet_float() [L61] 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_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_7=54/5, var_1_9=48/5] [L20] COND FALSE !(!cond) [L61] 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_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_7=54/5, var_1_9=48/5] [L62] var_1_7 = __VERIFIER_nondet_float() [L63] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=128, var_1_12=257/2, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L64] var_1_12 = __VERIFIER_nondet_double() [L65] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_14=17/2, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L66] var_1_14 = __VERIFIER_nondet_float() [L67] CALL assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L68] CALL assume_abort_if_not(var_1_14 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_14 != 0.0F) VAL [isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=128, var_1_1=1, var_1_4=1, var_1_9=48/5] [L69] var_1_15 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_15 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=254, var_1_1=1, var_1_4=1, var_1_9=48/5] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_15 >= 127) VAL [isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=254, var_1_1=1, var_1_4=1, var_1_9=48/5] [L71] CALL assume_abort_if_not(var_1_15 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=254, var_1_1=1, var_1_4=1, var_1_9=48/5] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_15 <= 254) VAL [isInitial=1, last_1_var_1_13=128, var_1_13=128, var_1_15=254, var_1_1=1, var_1_4=1, var_1_9=48/5] [L85] RET updateVariables() [L86] CALL step() [L35] COND TRUE ((((last_1_var_1_13) > (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13))) < (last_1_var_1_13 + last_1_var_1_13) [L36] var_1_9 = var_1_12 [L38] COND TRUE var_1_9 <= (16.2f / var_1_14) [L39] var_1_13 = (var_1_15 - 5) [L41] unsigned char stepLocal_0 = var_1_9 > var_1_9; [L42] COND FALSE !(stepLocal_0 && var_1_4) [L53] var_1_1 = var_1_13 [L86] RET step() [L87] CALL, EXPR property() [L77-L78] return ((((var_1_9 > var_1_9) && var_1_4) ? ((((((var_1_9) > ((- var_1_9))) ? (var_1_9) : ((- var_1_9)))) != var_1_9) ? ((! (var_1_9 >= (var_1_6 - var_1_7))) ? (var_1_1 == ((unsigned long int) var_1_13)) : (var_1_1 == ((unsigned long int) var_1_13))) : (var_1_1 == ((unsigned long int) var_1_13))) : (var_1_1 == ((unsigned long int) var_1_13))) && ((((((last_1_var_1_13) > (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13))) < (last_1_var_1_13 + last_1_var_1_13)) ? (var_1_9 == ((double) var_1_12)) : 1)) && ((var_1_9 <= (16.2f / var_1_14)) ? (var_1_13 == ((unsigned char) (var_1_15 - 5))) : 1) ; [L87] RET, EXPR property() [L87] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=128, var_1_12=48/5, var_1_13=249, var_1_15=254, var_1_1=249, var_1_4=1, var_1_9=48/5] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=128, var_1_12=48/5, var_1_13=249, var_1_15=254, var_1_1=249, var_1_4=1, var_1_9=48/5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 9, 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=24occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 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 13:16:52,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/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_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-36.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/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_d426d7e7-ce4d-48ed-afc8-3662b38c8897/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 a35769e60951934d6bdd49ba63ee6bf96f7f37fd27fc4fb212883b40db8837ed --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:16:54,639 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:16:54,718 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 13:16:54,723 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:16:54,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:16:54,751 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:16:54,752 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:16:54,752 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:16:54,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:16:54,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:16:54,754 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:16:54,755 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:16:54,755 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:16:54,756 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:16:54,756 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:16:54,757 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:16:54,758 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:16:54,758 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:16:54,759 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:16:54,760 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:16:54,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:16:54,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:16:54,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:16:54,762 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:16:54,762 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 13:16:54,763 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 13:16:54,763 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 13:16:54,764 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:16:54,764 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:16:54,764 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:16:54,765 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:16:54,765 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 13:16:54,766 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:16:54,766 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:16:54,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:16:54,766 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:16:54,767 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:16:54,767 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:16:54,767 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 13:16:54,767 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 13:16:54,767 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:16:54,768 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:16:54,768 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:16:54,768 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:16:54,768 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_d426d7e7-ce4d-48ed-afc8-3662b38c8897/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a35769e60951934d6bdd49ba63ee6bf96f7f37fd27fc4fb212883b40db8837ed [2023-12-02 13:16:55,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:16:55,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:16:55,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:16:55,094 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:16:55,094 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:16:55,095 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-36.i [2023-12-02 13:16:57,928 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:16:58,147 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:16:58,148 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-36.i [2023-12-02 13:16:58,156 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/data/2c7fc3d0c/7a17ea359f07451fa39f485258a2c607/FLAG71ff3434d [2023-12-02 13:16:58,169 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/data/2c7fc3d0c/7a17ea359f07451fa39f485258a2c607 [2023-12-02 13:16:58,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:16:58,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:16:58,176 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:16:58,176 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:16:58,181 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:16:58,182 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:16:58" (1/1) ... [2023-12-02 13:16:58,183 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b475bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:58, skipping insertion in model container [2023-12-02 13:16:58,183 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:16:58" (1/1) ... [2023-12-02 13:16:58,214 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:16:58,390 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_d426d7e7-ce4d-48ed-afc8-3662b38c8897/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-36.i[915,928] [2023-12-02 13:16:58,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:16:58,447 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:16:58,461 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_d426d7e7-ce4d-48ed-afc8-3662b38c8897/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-36.i[915,928] [2023-12-02 13:16:58,479 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:16:58,501 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:16:58,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:58 WrapperNode [2023-12-02 13:16:58,501 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:16:58,503 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:16:58,503 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:16:58,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:16:58,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:58" (1/1) ... [2023-12-02 13:16:58,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:58" (1/1) ... [2023-12-02 13:16:58,550 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84 [2023-12-02 13:16:58,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:16:58,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:16:58,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:16:58,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:16:58,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:58" (1/1) ... [2023-12-02 13:16:58,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:58" (1/1) ... [2023-12-02 13:16:58,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:58" (1/1) ... [2023-12-02 13:16:58,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:58" (1/1) ... [2023-12-02 13:16:58,577 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:58" (1/1) ... [2023-12-02 13:16:58,580 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:58" (1/1) ... [2023-12-02 13:16:58,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:58" (1/1) ... [2023-12-02 13:16:58,585 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:58" (1/1) ... [2023-12-02 13:16:58,588 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:16:58,589 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:16:58,590 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:16:58,590 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:16:58,590 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:58" (1/1) ... [2023-12-02 13:16:58,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:16:58,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:16:58,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:16:58,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:16:58,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:16:58,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 13:16:58,662 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:16:58,662 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:16:58,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:16:58,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:16:58,749 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:16:58,752 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:17:04,504 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:17:04,545 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:17:04,545 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:17:04,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:17:04 BoogieIcfgContainer [2023-12-02 13:17:04,546 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:17:04,550 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:17:04,550 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:17:04,554 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:17:04,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:16:58" (1/3) ... [2023-12-02 13:17:04,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1d7661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:17:04, skipping insertion in model container [2023-12-02 13:17:04,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:16:58" (2/3) ... [2023-12-02 13:17:04,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1d7661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:17:04, skipping insertion in model container [2023-12-02 13:17:04,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:17:04" (3/3) ... [2023-12-02 13:17:04,558 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-36.i [2023-12-02 13:17:04,579 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:17:04,579 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:17:04,629 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:17:04,637 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;@b7d8a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:17:04,637 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:17:04,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 13:17:04,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 13:17:04,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:17:04,653 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:17:04,654 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:17:04,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:17:04,659 INFO L85 PathProgramCache]: Analyzing trace with hash 2054267055, now seen corresponding path program 1 times [2023-12-02 13:17:04,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:17:04,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1717837065] [2023-12-02 13:17:04,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:17:04,672 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 13:17:04,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:17:04,677 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/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 13:17:04,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/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 13:17:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:17:05,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 13:17:05,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:17:05,086 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-12-02 13:17:05,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:17:05,087 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:17:05,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1717837065] [2023-12-02 13:17:05,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1717837065] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:17:05,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:17:05,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:17:05,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951474368] [2023-12-02 13:17:05,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:17:05,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 13:17:05,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:17:05,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 13:17:05,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:17:05,121 INFO L87 Difference]: Start difference. First operand has 34 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 13:17:07,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:07,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:17:07,313 INFO L93 Difference]: Finished difference Result 65 states and 107 transitions. [2023-12-02 13:17:07,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 13:17:07,356 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 60 [2023-12-02 13:17:07,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:17:07,363 INFO L225 Difference]: With dead ends: 65 [2023-12-02 13:17:07,363 INFO L226 Difference]: Without dead ends: 32 [2023-12-02 13:17:07,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 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 13:17:07,369 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:17:07,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2023-12-02 13:17:07,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-12-02 13:17:07,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-12-02 13:17:07,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 13:17:07,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 45 transitions. [2023-12-02 13:17:07,408 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 45 transitions. Word has length 60 [2023-12-02 13:17:07,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:17:07,408 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 45 transitions. [2023-12-02 13:17:07,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 13:17:07,409 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2023-12-02 13:17:07,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 13:17:07,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:17:07,412 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:17:07,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/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 13:17:07,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/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 13:17:07,616 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:17:07,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:17:07,617 INFO L85 PathProgramCache]: Analyzing trace with hash 864167285, now seen corresponding path program 1 times [2023-12-02 13:17:07,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:17:07,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222762311] [2023-12-02 13:17:07,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:17:07,619 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 13:17:07,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:17:07,620 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/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 13:17:07,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/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 13:17:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:17:07,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 13:17:07,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:17:39,055 WARN L876 $PredicateComparison]: unable to prove that (and (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)) c_~var_1_14~0))) (= c_~var_1_12~0 c_~var_1_9~0) (= ((_ extract 7 0) (bvadd (_ bv4294967291 32) ((_ zero_extend 24) c_~var_1_15~0))) c_~var_1_13~0) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse0))) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse1)))) (and (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse0)) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse1)))))) is different from true [2023-12-02 13:18:23,546 WARN L854 $PredicateComparison]: unable to prove that (and (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)) c_~var_1_14~0))) (= c_~var_1_1~0 ((_ zero_extend 24) c_~var_1_13~0)) (= c_~var_1_12~0 c_~var_1_9~0) (= ((_ extract 7 0) (bvadd (_ bv4294967291 32) ((_ zero_extend 24) c_~var_1_15~0))) c_~var_1_13~0) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse0))) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse1)))) (and (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse0)) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse1)))))) is different from false [2023-12-02 13:18:46,868 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-02 13:18:46,868 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:19:08,563 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ zero_extend 24) c_~var_1_13~0))) (let ((.cse0 (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)) c_~var_1_14~0)))) (.cse1 (fp.eq c_~var_1_9~0 c_~var_1_12~0)) (.cse2 (= c_~var_1_1~0 .cse3))) (and (or .cse0 (and .cse1 .cse2)) (or (not .cse0) (and .cse1 (= ((_ zero_extend 24) ((_ extract 7 0) (bvadd (_ bv4294967291 32) ((_ zero_extend 24) c_~var_1_15~0)))) .cse3) .cse2))))) is different from false [2023-12-02 13:19:10,605 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ zero_extend 24) c_~var_1_13~0))) (let ((.cse0 (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)) c_~var_1_14~0)))) (.cse1 (fp.eq c_~var_1_9~0 c_~var_1_12~0)) (.cse2 (= c_~var_1_1~0 .cse3))) (and (or .cse0 (and .cse1 .cse2)) (or (not .cse0) (and .cse1 (= ((_ zero_extend 24) ((_ extract 7 0) (bvadd (_ bv4294967291 32) ((_ zero_extend 24) c_~var_1_15~0)))) .cse3) .cse2))))) is different from true [2023-12-02 13:19:23,765 WARN L876 $PredicateComparison]: unable to prove that (and (fp.eq c_~var_1_9~0 c_~var_1_12~0) (or (not (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)) c_~var_1_14~0)))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvadd (_ bv4294967291 32) ((_ zero_extend 24) c_~var_1_15~0)))) ((_ zero_extend 24) c_~var_1_13~0)))) is different from true [2023-12-02 13:19:59,722 WARN L293 SmtUtils]: Spent 7.25s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:20:00,227 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 13:20:00,228 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:20:00,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [222762311] [2023-12-02 13:20:00,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [222762311] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 13:20:00,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:20:00,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2023-12-02 13:20:00,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329224040] [2023-12-02 13:20:00,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:20:00,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 13:20:00,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:20:00,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 13:20:00,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=55, Unknown=7, NotChecked=68, Total=156 [2023-12-02 13:20:00,233 INFO L87 Difference]: Start difference. First operand 32 states and 45 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 13:20:01,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:03,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:04,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:05,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:07,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:09,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:11,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:14,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:17,179 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.eq c_~var_1_9~0 c_~var_1_12~0)) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)))) (and .cse0 (or .cse0 (forall ((~var_1_14~0 (_ FloatingPoint 8 24))) (not (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode .cse1 ~var_1_14~0)))))) (or (not (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode .cse1 c_~var_1_14~0)))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvadd (_ bv4294967291 32) ((_ zero_extend 24) c_~var_1_15~0)))) ((_ zero_extend 24) c_~var_1_13~0))))) is different from false [2023-12-02 13:20:19,252 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.eq c_~var_1_9~0 c_~var_1_12~0)) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)))) (and .cse0 (or .cse0 (forall ((~var_1_14~0 (_ FloatingPoint 8 24))) (not (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode .cse1 ~var_1_14~0)))))) (or (not (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode .cse1 c_~var_1_14~0)))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvadd (_ bv4294967291 32) ((_ zero_extend 24) c_~var_1_15~0)))) ((_ zero_extend 24) c_~var_1_13~0))))) is different from true [2023-12-02 13:20:21,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:24,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:26,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:28,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:30,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:32,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:34,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:36,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:37,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:39,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:41,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:44,562 WARN L876 $PredicateComparison]: unable to prove that (and (or (fp.eq c_~var_1_9~0 c_~var_1_12~0) (forall ((~var_1_14~0 (_ FloatingPoint 8 24))) (not (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)) ~var_1_14~0)))))) (not (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)))) is different from true [2023-12-02 13:20:46,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:48,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:20:48,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:20:48,303 INFO L93 Difference]: Finished difference Result 48 states and 66 transitions. [2023-12-02 13:20:48,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 13:20:48,304 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 60 [2023-12-02 13:20:48,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:20:48,306 INFO L225 Difference]: With dead ends: 48 [2023-12-02 13:20:48,306 INFO L226 Difference]: Without dead ends: 46 [2023-12-02 13:20:48,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 46.4s TimeCoverageRelationStatistics Valid=30, Invalid=56, Unknown=10, NotChecked=114, Total=210 [2023-12-02 13:20:48,308 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 14 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 137 IncrementalHoareTripleChecker+Unchecked, 41.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:20:48,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 105 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 11 Unknown, 137 Unchecked, 41.2s Time] [2023-12-02 13:20:48,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-12-02 13:20:48,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 37. [2023-12-02 13:20:48,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 13:20:48,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2023-12-02 13:20:48,321 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 60 [2023-12-02 13:20:48,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:20:48,322 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2023-12-02 13:20:48,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-02 13:20:48,323 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2023-12-02 13:20:48,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 13:20:48,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:20:48,326 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:20:48,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/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 13:20:48,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/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 13:20:48,527 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:20:48,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:20:48,528 INFO L85 PathProgramCache]: Analyzing trace with hash 921425587, now seen corresponding path program 1 times [2023-12-02 13:20:48,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:20:48,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005949586] [2023-12-02 13:20:48,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:20:48,529 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 13:20:48,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:20:48,530 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/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 13:20:48,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/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 13:20:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:20:48,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 13:20:48,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:21:38,063 WARN L293 SmtUtils]: Spent 14.68s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:22:18,551 WARN L876 $PredicateComparison]: unable to prove that (and (not (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)) c_~var_1_14~0)))) (= c_~var_1_1~0 ((_ zero_extend 24) c_~var_1_13~0)) (= c_~var_1_12~0 c_~var_1_9~0) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse0))) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse1)))) (and (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse0)) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse1))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2023-12-02 13:22:30,002 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-02 13:22:30,002 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:23:29,631 WARN L293 SmtUtils]: Spent 15.57s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:23:36,963 WARN L854 $PredicateComparison]: unable to prove that (and (fp.eq c_~var_1_9~0 c_~var_1_12~0) (not (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)) c_~var_1_14~0))))) is different from false [2023-12-02 13:23:38,995 WARN L876 $PredicateComparison]: unable to prove that (and (fp.eq c_~var_1_9~0 c_~var_1_12~0) (not (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)) c_~var_1_14~0))))) is different from true [2023-12-02 13:24:40,657 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-02 13:24:40,657 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:24:40,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005949586] [2023-12-02 13:24:40,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005949586] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:24:40,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [930271927] [2023-12-02 13:24:40,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:24:40,658 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 13:24:40,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 13:24:40,672 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 13:24:40,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 13:24:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:24:41,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 13:24:41,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:25:34,224 WARN L854 $PredicateComparison]: unable to prove that (and (not (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)) c_~var_1_14~0)))) (= c_~var_1_12~0 c_~var_1_9~0) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse0))) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse1)))) (and (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse0)) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse1))))) (let ((.cse2 ((_ zero_extend 24) c_~last_1_var_1_13~0))) (bvslt .cse2 (bvmul (_ bv2 32) .cse2)))) is different from false [2023-12-02 13:25:36,272 WARN L876 $PredicateComparison]: unable to prove that (and (not (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)) c_~var_1_14~0)))) (= c_~var_1_12~0 c_~var_1_9~0) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse0))) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse1)))) (and (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse0)) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse1))))) (let ((.cse2 ((_ zero_extend 24) c_~last_1_var_1_13~0))) (bvslt .cse2 (bvmul (_ bv2 32) .cse2)))) is different from true [2023-12-02 13:26:19,237 WARN L854 $PredicateComparison]: unable to prove that (and (not (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)) c_~var_1_14~0)))) (= c_~var_1_1~0 ((_ zero_extend 24) c_~var_1_13~0)) (= c_~var_1_12~0 c_~var_1_9~0) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse0))) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse1)))) (and (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse0)) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse1))))) (let ((.cse2 ((_ zero_extend 24) c_~last_1_var_1_13~0))) (bvslt .cse2 (bvmul (_ bv2 32) .cse2)))) is different from false [2023-12-02 13:26:21,282 WARN L876 $PredicateComparison]: unable to prove that (and (not (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)) c_~var_1_14~0)))) (= c_~var_1_1~0 ((_ zero_extend 24) c_~var_1_13~0)) (= c_~var_1_12~0 c_~var_1_9~0) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse0))) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse1)))) (and (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse0)) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse1))))) (let ((.cse2 ((_ zero_extend 24) c_~last_1_var_1_13~0))) (bvslt .cse2 (bvmul (_ bv2 32) .cse2)))) is different from true [2023-12-02 13:26:32,674 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-02 13:26:32,674 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:27:04,554 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ zero_extend 24) c_~var_1_13~0)) (.cse1 (let ((.cse5 ((_ zero_extend 24) c_~last_1_var_1_13~0))) (bvslt .cse5 (bvmul (_ bv2 32) .cse5))))) (let ((.cse2 (not .cse1)) (.cse0 (forall ((~var_1_15~0 (_ BitVec 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvadd (_ bv4294967291 32) ((_ zero_extend 24) ~var_1_15~0)))) .cse4))) (.cse3 (fp.eq c_~var_1_9~0 c_~var_1_12~0))) (and (or (not (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)) c_~var_1_14~0)))) (and (or .cse0 .cse1) (or .cse2 (and .cse3 .cse0)))) (or .cse2 (and (or .cse3 .cse0) (or .cse3 (forall ((~var_1_15~0 (_ BitVec 8))) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvadd (_ bv4294967291 32) ((_ zero_extend 24) ~var_1_15~0)))) .cse4)))))) (= c_~var_1_1~0 .cse4)))) is different from false [2023-12-02 13:27:06,595 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ zero_extend 24) c_~var_1_13~0)) (.cse1 (let ((.cse5 ((_ zero_extend 24) c_~last_1_var_1_13~0))) (bvslt .cse5 (bvmul (_ bv2 32) .cse5))))) (let ((.cse2 (not .cse1)) (.cse0 (forall ((~var_1_15~0 (_ BitVec 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvadd (_ bv4294967291 32) ((_ zero_extend 24) ~var_1_15~0)))) .cse4))) (.cse3 (fp.eq c_~var_1_9~0 c_~var_1_12~0))) (and (or (not (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)) c_~var_1_14~0)))) (and (or .cse0 .cse1) (or .cse2 (and .cse3 .cse0)))) (or .cse2 (and (or .cse3 .cse0) (or .cse3 (forall ((~var_1_15~0 (_ BitVec 8))) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvadd (_ bv4294967291 32) ((_ zero_extend 24) ~var_1_15~0)))) .cse4)))))) (= c_~var_1_1~0 .cse4)))) is different from true [2023-12-02 13:28:03,645 WARN L293 SmtUtils]: Spent 5.51s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:28:44,787 WARN L293 SmtUtils]: Spent 10.88s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:28:46,907 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-02 13:28:46,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [930271927] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:28:46,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873784331] [2023-12-02 13:28:46,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:28:46,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:28:46,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:28:46,909 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:28:46,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426d7e7-ce4d-48ed-afc8-3662b38c8897/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 13:28:47,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:28:47,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 13:28:47,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:29:15,350 WARN L876 $PredicateComparison]: unable to prove that (and (not (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)) c_~var_1_14~0)))) (= c_~var_1_12~0 c_~var_1_9~0) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse0))) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse1)))) (and (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse0)) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse1)))))) is different from true [2023-12-02 13:29:52,728 WARN L854 $PredicateComparison]: unable to prove that (and (not (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)) c_~var_1_14~0)))) (= c_~var_1_1~0 ((_ zero_extend 24) c_~var_1_13~0)) (= c_~var_1_12~0 c_~var_1_9~0) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse0))) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse1)))) (and (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse0)) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse1)))))) is different from false [2023-12-02 13:29:54,768 WARN L876 $PredicateComparison]: unable to prove that (and (not (fp.leq c_~var_1_9~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 81.0 5.0)) c_~var_1_14~0)))) (= c_~var_1_1~0 ((_ zero_extend 24) c_~var_1_13~0)) (= c_~var_1_12~0 c_~var_1_9~0) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse0))) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse1)))) (and (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse0)) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode .cse1)))))) is different from true [2023-12-02 13:30:01,371 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 65 proven. 33 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-02 13:30:01,371 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:30:45,354 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-02 13:30:45,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873784331] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:30:45,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 13:30:45,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 29 [2023-12-02 13:30:45,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834333523] [2023-12-02 13:30:45,356 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 13:30:45,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-02 13:30:45,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:30:45,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-02 13:30:45,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=321, Unknown=52, NotChecked=322, Total=812 [2023-12-02 13:30:45,360 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand has 29 states, 29 states have (on average 2.3448275862068964) internal successors, (68), 29 states have internal predecessors, (68), 5 states have call successors, (22), 4 states have call predecessors, (22), 7 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2023-12-02 13:30:47,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:30:49,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:30:50,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:30:52,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:30:54,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:30:56,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:30:58,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:30:59,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:31:07,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:31:09,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:31:11,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:31:13,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:31:20,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:31:22,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:31:23,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:31:25,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:31:27,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:31:28,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:31:30,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:31:32,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:31:34,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:31:36,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:31:38,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:31:40,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:31:49,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:31:50,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:31:53,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:31:55,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:31:57,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:31:59,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:32:00,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 13:32:03,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]