./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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 f1b3f8a58a85334f20dfe0d17f7409b90f2c515498edf0e401b907ad654c9f6a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:20:16,035 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:20:16,097 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:20:16,102 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:20:16,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:20:16,125 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:20:16,126 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:20:16,126 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:20:16,127 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:20:16,127 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:20:16,128 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:20:16,128 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:20:16,129 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:20:16,129 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:20:16,130 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:20:16,130 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:20:16,131 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:20:16,131 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:20:16,132 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:20:16,132 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:20:16,133 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:20:16,133 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:20:16,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:20:16,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:20:16,135 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:20:16,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:20:16,135 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:20:16,136 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:20:16,136 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:20:16,137 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:20:16,137 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:20:16,137 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:20:16,138 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:20:16,138 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:20:16,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:20:16,139 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:20:16,139 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:20:16,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:20:16,140 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:20:16,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:20:16,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:20:16,142 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:20:16,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:20:16,142 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:20:16,143 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:20:16,143 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:20:16,143 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:20:16,143 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_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1b3f8a58a85334f20dfe0d17f7409b90f2c515498edf0e401b907ad654c9f6a [2023-12-02 13:20:16,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:20:16,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:20:16,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:20:16,390 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:20:16,391 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:20:16,392 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i [2023-12-02 13:20:19,138 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:20:19,315 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:20:19,315 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i [2023-12-02 13:20:19,326 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/data/be9943b2a/384f297310d14516bb460f7293403af6/FLAGcf02df546 [2023-12-02 13:20:19,338 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/data/be9943b2a/384f297310d14516bb460f7293403af6 [2023-12-02 13:20:19,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:20:19,342 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:20:19,343 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:20:19,343 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:20:19,347 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:20:19,347 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:20:19" (1/1) ... [2023-12-02 13:20:19,348 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dccd02c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:19, skipping insertion in model container [2023-12-02 13:20:19,349 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:20:19" (1/1) ... [2023-12-02 13:20:19,382 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:20:19,522 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_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i[919,932] [2023-12-02 13:20:19,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:20:19,597 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:20:19,606 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_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i[919,932] [2023-12-02 13:20:19,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:20:19,663 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:20:19,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:19 WrapperNode [2023-12-02 13:20:19,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:20:19,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:20:19,665 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:20:19,665 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:20:19,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:19" (1/1) ... [2023-12-02 13:20:19,686 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:19" (1/1) ... [2023-12-02 13:20:19,722 INFO L138 Inliner]: procedures = 26, calls = 49, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 272 [2023-12-02 13:20:19,722 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:20:19,723 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:20:19,723 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:20:19,723 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:20:19,730 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:19" (1/1) ... [2023-12-02 13:20:19,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:19" (1/1) ... [2023-12-02 13:20:19,733 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:19" (1/1) ... [2023-12-02 13:20:19,734 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:19" (1/1) ... [2023-12-02 13:20:19,750 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:19" (1/1) ... [2023-12-02 13:20:19,754 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:19" (1/1) ... [2023-12-02 13:20:19,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:19" (1/1) ... [2023-12-02 13:20:19,763 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:19" (1/1) ... [2023-12-02 13:20:19,770 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:20:19,771 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:20:19,771 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:20:19,771 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:20:19,772 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:19" (1/1) ... [2023-12-02 13:20:19,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:20:19,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:20:19,803 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:20:19,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:20:19,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:20:19,840 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:20:19,840 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:20:19,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:20:19,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:20:19,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:20:19,939 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:20:19,941 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:20:20,347 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:20:20,619 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:20:20,619 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:20:20,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:20:20 BoogieIcfgContainer [2023-12-02 13:20:20,621 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:20:20,623 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:20:20,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:20:20,626 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:20:20,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:20:19" (1/3) ... [2023-12-02 13:20:20,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac2a997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:20:20, skipping insertion in model container [2023-12-02 13:20:20,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:19" (2/3) ... [2023-12-02 13:20:20,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac2a997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:20:20, skipping insertion in model container [2023-12-02 13:20:20,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:20:20" (3/3) ... [2023-12-02 13:20:20,628 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i [2023-12-02 13:20:20,642 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:20:20,643 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:20:20,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:20:20,691 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;@22b63c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:20:20,691 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:20:20,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 27 states have internal predecessors, (29), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-02 13:20:20,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-02 13:20:20,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:20:20,709 INFO L195 NwaCegarLoop]: trace histogram [36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:20:20,709 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:20:20,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:20:20,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1588832612, now seen corresponding path program 1 times [2023-12-02 13:20:20,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:20:20,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341653883] [2023-12-02 13:20:20,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:20:20,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:20:20,882 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:20:20,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1853380568] [2023-12-02 13:20:20,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:20:20,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:20:20,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:20:20,892 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:20:20,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:20:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 13:20:21,148 WARN L124 FreeRefinementEngine]: Strategy SIFA_TAIPAN was unsuccessful and could not determine trace feasibility [2023-12-02 13:20:21,150 INFO L360 BasicCegarLoop]: Counterexample might be feasible [2023-12-02 13:20:21,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 13:20:21,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:20:21,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 13:20:21,364 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 13:20:21,366 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:20:21,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:20:21 BoogieIcfgContainer [2023-12-02 13:20:21,400 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:20:21,400 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:20:21,400 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:20:21,400 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:20:21,401 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:20:20" (3/4) ... [2023-12-02 13:20:21,402 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 13:20:21,403 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:20:21,404 INFO L158 Benchmark]: Toolchain (without parser) took 2062.12ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 107.4MB in the beginning and 117.6MB in the end (delta: -10.2MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2023-12-02 13:20:21,404 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 102.8MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:20:21,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.55ms. Allocated memory is still 148.9MB. Free memory was 107.4MB in the beginning and 91.3MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 13:20:21,405 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.52ms. Allocated memory is still 148.9MB. Free memory was 91.3MB in the beginning and 86.5MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 13:20:21,406 INFO L158 Benchmark]: Boogie Preprocessor took 47.17ms. Allocated memory is still 148.9MB. Free memory was 86.5MB in the beginning and 83.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:20:21,407 INFO L158 Benchmark]: RCFGBuilder took 850.15ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 83.9MB in the beginning and 90.5MB in the end (delta: -6.5MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2023-12-02 13:20:21,407 INFO L158 Benchmark]: TraceAbstraction took 776.77ms. Allocated memory is still 180.4MB. Free memory was 89.4MB in the beginning and 118.4MB in the end (delta: -29.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:20:21,408 INFO L158 Benchmark]: Witness Printer took 2.99ms. Allocated memory is still 180.4MB. Free memory was 118.4MB in the beginning and 117.6MB in the end (delta: 740.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:20:21,411 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 102.8MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.55ms. Allocated memory is still 148.9MB. Free memory was 107.4MB in the beginning and 91.3MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.52ms. Allocated memory is still 148.9MB. Free memory was 91.3MB in the beginning and 86.5MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.17ms. Allocated memory is still 148.9MB. Free memory was 86.5MB in the beginning and 83.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 850.15ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 83.9MB in the beginning and 90.5MB in the end (delta: -6.5MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * TraceAbstraction took 776.77ms. Allocated memory is still 180.4MB. Free memory was 89.4MB in the beginning and 118.4MB in the end (delta: -29.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.99ms. Allocated memory is still 180.4MB. Free memory was 118.4MB in the beginning and 117.6MB in the end (delta: 740.1kB). 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: unable to decide satisfiability of path constraint, overapproximation of someBinaryFLOATComparisonOperation at line 106, overapproximation of bitwiseOr at line 112, overapproximation of someBinaryArithmeticDOUBLEoperation at line 71, overapproximation of bitwiseAnd at line 80, overapproximation of someBinaryDOUBLEComparisonOperation at line 65. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 256; [L23] unsigned short int var_1_2 = 51640; [L24] unsigned short int var_1_3 = 5; [L25] float var_1_7 = 128.8; [L26] unsigned char var_1_8 = 2; [L27] float var_1_9 = 256.5; [L28] float var_1_10 = 7.25; [L29] signed char var_1_11 = 64; [L30] signed char var_1_12 = -16; [L31] double var_1_13 = 0.9; [L32] unsigned char var_1_14 = 1; [L33] double var_1_15 = 0.0; [L34] double var_1_16 = 1.275; [L35] unsigned short int var_1_17 = 8; [L36] unsigned short int var_1_18 = 35331; [L37] signed char var_1_19 = -128; [L38] double var_1_20 = 0.0; [L39] double var_1_21 = 0.0; [L40] signed char var_1_22 = -8; [L41] signed char var_1_23 = 50; [L42] unsigned short int var_1_24 = 0; [L43] signed long int var_1_25 = -1; [L44] signed char var_1_26 = 5; [L45] signed long int var_1_27 = 32; [L46] unsigned char var_1_28 = 64; [L47] signed char var_1_29 = 100; [L48] signed char var_1_30 = -1; [L49] signed char var_1_31 = 10; [L50] signed char var_1_32 = 5; [L51] signed char var_1_33 = 1; [L52] unsigned short int var_1_34 = 32; [L53] unsigned char var_1_35 = 1; [L54] signed long int var_1_36 = -8; [L55] unsigned char var_1_37 = 1; [L56] float last_1_var_1_10 = 7.25; [L57] double last_1_var_1_13 = 0.9; [L58] unsigned short int last_1_var_1_17 = 8; [L59] signed char last_1_var_1_19 = -128; [L206] isInitial = 1 [L207] FCALL initially() [L208] COND TRUE 1 [L209] CALL updateLastVariables() [L196] last_1_var_1_10 = var_1_10 [L197] last_1_var_1_13 = var_1_13 [L198] last_1_var_1_17 = var_1_17 [L199] last_1_var_1_19 = var_1_19 [L209] RET updateLastVariables() [L210] CALL updateVariables() [L138] var_1_2 = __VERIFIER_nondet_ushort() [L139] CALL assume_abort_if_not(var_1_2 >= 32767) [L20] COND FALSE !(!cond) [L139] RET assume_abort_if_not(var_1_2 >= 32767) [L140] CALL assume_abort_if_not(var_1_2 <= 65535) [L20] COND FALSE !(!cond) [L140] RET assume_abort_if_not(var_1_2 <= 65535) [L141] var_1_3 = __VERIFIER_nondet_ushort() [L142] CALL assume_abort_if_not(var_1_3 >= 0) [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_3 >= 0) [L143] CALL assume_abort_if_not(var_1_3 <= 32767) [L20] COND FALSE !(!cond) [L143] RET assume_abort_if_not(var_1_3 <= 32767) [L144] var_1_8 = __VERIFIER_nondet_uchar() [L145] CALL assume_abort_if_not(var_1_8 >= 0) [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_8 >= 0) [L146] CALL assume_abort_if_not(var_1_8 <= 255) [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_8 <= 255) [L147] CALL assume_abort_if_not(var_1_8 != 0) [L20] COND FALSE !(!cond) [L147] RET assume_abort_if_not(var_1_8 != 0) [L148] var_1_9 = __VERIFIER_nondet_float() [L149] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) [L150] var_1_12 = __VERIFIER_nondet_char() [L151] CALL assume_abort_if_not(var_1_12 >= -127) [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not(var_1_12 >= -127) [L152] CALL assume_abort_if_not(var_1_12 <= 126) [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_12 <= 126) [L153] var_1_14 = __VERIFIER_nondet_uchar() [L154] CALL assume_abort_if_not(var_1_14 >= 0) [L20] COND FALSE !(!cond) [L154] RET assume_abort_if_not(var_1_14 >= 0) [L155] CALL assume_abort_if_not(var_1_14 <= 1) [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not(var_1_14 <= 1) [L156] var_1_15 = __VERIFIER_nondet_double() [L157] CALL assume_abort_if_not((var_1_15 >= 2305843.009213691390e+12F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not((var_1_15 >= 2305843.009213691390e+12F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) [L158] var_1_16 = __VERIFIER_nondet_double() [L159] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) [L160] var_1_18 = __VERIFIER_nondet_ushort() [L161] CALL assume_abort_if_not(var_1_18 >= 32767) [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_18 >= 32767) [L162] CALL assume_abort_if_not(var_1_18 <= 65534) [L20] COND FALSE !(!cond) [L162] RET assume_abort_if_not(var_1_18 <= 65534) [L163] var_1_20 = __VERIFIER_nondet_double() [L164] CALL assume_abort_if_not((var_1_20 >= 4611686.018427387900e+12F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854776000e+12F && var_1_20 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not((var_1_20 >= 4611686.018427387900e+12F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854776000e+12F && var_1_20 >= 1.0e-20F )) [L165] var_1_21 = __VERIFIER_nondet_double() [L166] CALL assume_abort_if_not((var_1_21 >= 4611686.018427387900e+12F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854776000e+12F && var_1_21 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L166] RET assume_abort_if_not((var_1_21 >= 4611686.018427387900e+12F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854776000e+12F && var_1_21 >= 1.0e-20F )) [L167] var_1_22 = __VERIFIER_nondet_char() [L168] CALL assume_abort_if_not(var_1_22 >= -127) [L20] COND FALSE !(!cond) [L168] RET assume_abort_if_not(var_1_22 >= -127) [L169] CALL assume_abort_if_not(var_1_22 <= 126) [L20] COND FALSE !(!cond) [L169] RET assume_abort_if_not(var_1_22 <= 126) [L170] var_1_24 = __VERIFIER_nondet_ushort() [L171] CALL assume_abort_if_not(var_1_24 >= 0) [L20] COND FALSE !(!cond) [L171] RET assume_abort_if_not(var_1_24 >= 0) [L172] CALL assume_abort_if_not(var_1_24 <= 65535) [L20] COND FALSE !(!cond) [L172] RET assume_abort_if_not(var_1_24 <= 65535) [L173] var_1_25 = __VERIFIER_nondet_long() [L174] CALL assume_abort_if_not(var_1_25 >= -2147483648) [L20] COND FALSE !(!cond) [L174] RET assume_abort_if_not(var_1_25 >= -2147483648) [L175] CALL assume_abort_if_not(var_1_25 <= 2147483647) [L20] COND FALSE !(!cond) [L175] RET assume_abort_if_not(var_1_25 <= 2147483647) [L176] var_1_26 = __VERIFIER_nondet_char() [L177] CALL assume_abort_if_not(var_1_26 >= -127) [L20] COND FALSE !(!cond) [L177] RET assume_abort_if_not(var_1_26 >= -127) [L178] CALL assume_abort_if_not(var_1_26 <= 126) [L20] COND FALSE !(!cond) [L178] RET assume_abort_if_not(var_1_26 <= 126) [L179] var_1_30 = __VERIFIER_nondet_char() [L180] CALL assume_abort_if_not(var_1_30 >= -126) [L20] COND FALSE !(!cond) [L180] RET assume_abort_if_not(var_1_30 >= -126) [L181] CALL assume_abort_if_not(var_1_30 <= 126) [L20] COND FALSE !(!cond) [L181] RET assume_abort_if_not(var_1_30 <= 126) [L182] var_1_31 = __VERIFIER_nondet_char() [L183] CALL assume_abort_if_not(var_1_31 >= 0) [L20] COND FALSE !(!cond) [L183] RET assume_abort_if_not(var_1_31 >= 0) [L184] CALL assume_abort_if_not(var_1_31 <= 126) [L20] COND FALSE !(!cond) [L184] RET assume_abort_if_not(var_1_31 <= 126) [L185] var_1_33 = __VERIFIER_nondet_char() [L186] CALL assume_abort_if_not(var_1_33 >= 0) [L20] COND FALSE !(!cond) [L186] RET assume_abort_if_not(var_1_33 >= 0) [L187] CALL assume_abort_if_not(var_1_33 <= 126) [L20] COND FALSE !(!cond) [L187] RET assume_abort_if_not(var_1_33 <= 126) [L188] var_1_35 = __VERIFIER_nondet_uchar() [L189] CALL assume_abort_if_not(var_1_35 >= 0) [L20] COND FALSE !(!cond) [L189] RET assume_abort_if_not(var_1_35 >= 0) [L190] CALL assume_abort_if_not(var_1_35 <= 1) [L20] COND FALSE !(!cond) [L190] RET assume_abort_if_not(var_1_35 <= 1) [L191] var_1_37 = __VERIFIER_nondet_uchar() [L192] CALL assume_abort_if_not(var_1_37 >= 0) [L20] COND FALSE !(!cond) [L192] RET assume_abort_if_not(var_1_37 >= 0) [L193] CALL assume_abort_if_not(var_1_37 <= 1) [L20] COND FALSE !(!cond) [L193] RET assume_abort_if_not(var_1_37 <= 1) [L210] RET updateVariables() [L211] CALL step() [L63] signed long int stepLocal_2 = var_1_3 + last_1_var_1_19; [L64] COND FALSE !(\read(var_1_14)) [L75] COND TRUE (~ (- var_1_24)) < var_1_25 [L76] COND TRUE var_1_25 < -64 [L77] var_1_23 = var_1_26 [L80] EXPR var_1_28 & (~ var_1_29) [L80] COND FALSE !((var_1_28 & (~ var_1_29)) <= var_1_34) [L85] COND TRUE \read(var_1_37) [L86] var_1_36 = -128 [L89] COND FALSE !(var_1_13 > ((var_1_20 - var_1_15) - (var_1_21 - var_1_16))) [L92] var_1_19 = var_1_12 [L94] var_1_17 = (var_1_18 - var_1_3) [L95] COND FALSE !(var_1_24 > var_1_25) [L98] COND FALSE !(var_1_26 <= 16) [L101] COND FALSE !(var_1_23 >= var_1_27) [L104] var_1_32 = var_1_26 [L106] COND FALSE !((var_1_17 >= var_1_17) || (var_1_9 > last_1_var_1_10)) [L109] COND FALSE !(var_1_24 <= (((((((var_1_25) < 0 ) ? -(var_1_25) : (var_1_25))) < 0 ) ? -((((var_1_25) < 0 ) ? -(var_1_25) : (var_1_25))) : ((((var_1_25) < 0 ) ? -(var_1_25) : (var_1_25)))))) [L112] EXPR var_1_28 & var_1_32 [L112] EXPR (var_1_28 & var_1_32) ^ var_1_23 [L112] EXPR var_1_29 & var_1_33 [L112] COND FALSE !(((var_1_28 & var_1_32) ^ var_1_23) < (var_1_29 & var_1_33)) [L117] COND TRUE var_1_10 >= var_1_10 [L118] COND FALSE !(var_1_9 < var_1_10) [L122] COND FALSE !((var_1_2 - var_1_3) > var_1_17) [L125] var_1_1 = 0 [L127] signed long int stepLocal_1 = var_1_1 / ((((2) < (var_1_2)) ? (2) : (var_1_2))); [L128] unsigned short int stepLocal_0 = var_1_3; [L129] COND FALSE !((var_1_19 / var_1_8) < stepLocal_1) [L211] RET step() [L212] CALL, EXPR property() [L202-L203] return ((((((((var_1_2 - var_1_3) > var_1_17) ? (var_1_1 == ((signed long int) (((((((((var_1_11 + var_1_3)) < (var_1_2)) ? ((var_1_11 + var_1_3)) : (var_1_2)))) < (var_1_17)) ? ((((((var_1_11 + var_1_3)) < (var_1_2)) ? ((var_1_11 + var_1_3)) : (var_1_2)))) : (var_1_17))))) : (var_1_1 == ((signed long int) 0))) && (((var_1_19 / var_1_8) < (var_1_1 / ((((2) < (var_1_2)) ? (2) : (var_1_2))))) ? ((var_1_1 >= var_1_3) ? (var_1_7 == ((float) 0.75f)) : (var_1_7 == ((float) var_1_9))) : 1)) && (((var_1_17 >= var_1_17) || (var_1_9 > last_1_var_1_10)) ? (var_1_10 == ((float) var_1_9)) : 1)) && ((var_1_10 >= var_1_10) ? ((var_1_9 < var_1_10) ? (var_1_11 == ((signed char) var_1_12)) : 1) : 1)) && (var_1_14 ? ((last_1_var_1_13 <= var_1_9) ? (var_1_13 == ((double) var_1_9)) : ((((((last_1_var_1_17) < ((var_1_2 * last_1_var_1_17))) ? (last_1_var_1_17) : ((var_1_2 * last_1_var_1_17)))) == (var_1_3 + last_1_var_1_19)) ? (var_1_13 == ((double) 8.75)) : (var_1_13 == ((double) (16.5 + ((var_1_15 - 49.35) - var_1_16)))))) : 1)) && (var_1_17 == ((unsigned short int) (var_1_18 - var_1_3)))) && ((var_1_13 > ((var_1_20 - var_1_15) - (var_1_21 - var_1_16))) ? (var_1_19 == ((signed char) ((((var_1_12) > (var_1_22)) ? (var_1_12) : (var_1_22))))) : (var_1_19 == ((signed char) var_1_12))) ; [L212] RET, EXPR property() [L212] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) [L19] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 65 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 36, 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=65occurred 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 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 13:20:21,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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 f1b3f8a58a85334f20dfe0d17f7409b90f2c515498edf0e401b907ad654c9f6a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:20:23,362 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:20:23,446 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 13:20:23,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:20:23,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:20:23,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:20:23,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:20:23,481 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:20:23,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:20:23,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:20:23,483 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:20:23,483 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:20:23,484 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:20:23,484 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:20:23,485 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:20:23,485 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:20:23,486 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:20:23,487 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:20:23,487 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:20:23,488 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:20:23,489 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:20:23,489 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:20:23,490 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:20:23,490 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:20:23,490 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 13:20:23,491 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 13:20:23,491 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 13:20:23,492 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:20:23,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:20:23,493 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:20:23,493 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:20:23,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 13:20:23,494 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:20:23,494 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:20:23,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:20:23,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:20:23,495 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:20:23,495 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:20:23,495 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 13:20:23,495 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 13:20:23,496 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:20:23,496 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:20:23,496 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:20:23,496 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:20:23,497 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_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1b3f8a58a85334f20dfe0d17f7409b90f2c515498edf0e401b907ad654c9f6a [2023-12-02 13:20:23,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:20:23,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:20:23,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:20:23,807 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:20:23,808 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:20:23,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i [2023-12-02 13:20:26,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:20:26,819 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:20:26,820 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i [2023-12-02 13:20:26,831 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/data/6b66cc1bc/b0878a0b3bfa4a889a870df871462485/FLAG580d2dbbf [2023-12-02 13:20:26,845 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/data/6b66cc1bc/b0878a0b3bfa4a889a870df871462485 [2023-12-02 13:20:26,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:20:26,849 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:20:26,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:20:26,851 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:20:26,856 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:20:26,857 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:20:26" (1/1) ... [2023-12-02 13:20:26,858 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a0a2b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:26, skipping insertion in model container [2023-12-02 13:20:26,858 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:20:26" (1/1) ... [2023-12-02 13:20:26,894 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:20:27,056 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_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i[919,932] [2023-12-02 13:20:27,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:20:27,150 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:20:27,164 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_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i[919,932] [2023-12-02 13:20:27,203 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:20:27,224 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:20:27,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:27 WrapperNode [2023-12-02 13:20:27,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:20:27,226 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:20:27,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:20:27,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:20:27,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:27" (1/1) ... [2023-12-02 13:20:27,249 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:27" (1/1) ... [2023-12-02 13:20:27,282 INFO L138 Inliner]: procedures = 27, calls = 49, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 217 [2023-12-02 13:20:27,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:20:27,283 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:20:27,283 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:20:27,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:20:27,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:27" (1/1) ... [2023-12-02 13:20:27,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:27" (1/1) ... [2023-12-02 13:20:27,299 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:27" (1/1) ... [2023-12-02 13:20:27,300 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:27" (1/1) ... [2023-12-02 13:20:27,314 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:27" (1/1) ... [2023-12-02 13:20:27,319 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:27" (1/1) ... [2023-12-02 13:20:27,322 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:27" (1/1) ... [2023-12-02 13:20:27,325 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:27" (1/1) ... [2023-12-02 13:20:27,331 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:20:27,332 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:20:27,332 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:20:27,332 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:20:27,333 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:27" (1/1) ... [2023-12-02 13:20:27,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:20:27,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:20:27,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:20:27,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:20:27,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:20:27,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 13:20:27,400 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:20:27,400 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:20:27,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:20:27,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:20:27,494 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:20:27,496 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:20:34,784 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:20:34,831 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:20:34,831 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:20:34,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:20:34 BoogieIcfgContainer [2023-12-02 13:20:34,832 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:20:34,835 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:20:34,835 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:20:34,838 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:20:34,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:20:26" (1/3) ... [2023-12-02 13:20:34,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e0417a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:20:34, skipping insertion in model container [2023-12-02 13:20:34,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:20:27" (2/3) ... [2023-12-02 13:20:34,840 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e0417a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:20:34, skipping insertion in model container [2023-12-02 13:20:34,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:20:34" (3/3) ... [2023-12-02 13:20:34,841 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i [2023-12-02 13:20:34,860 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:20:34,860 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:20:34,911 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:20:34,918 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;@2b16e01e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:20:34,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:20:34,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 53 states have (on average 1.490566037735849) internal successors, (79), 54 states have internal predecessors, (79), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-02 13:20:34,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-12-02 13:20:34,941 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:20:34,942 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:20:34,943 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:20:34,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:20:34,948 INFO L85 PathProgramCache]: Analyzing trace with hash -753784520, now seen corresponding path program 1 times [2023-12-02 13:20:34,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:20:34,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [855575948] [2023-12-02 13:20:34,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:20:34,964 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 13:20:34,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:20:34,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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 13:20:34,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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 13:20:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:20:35,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:20:35,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:20:39,833 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2023-12-02 13:20:39,833 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:20:39,834 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:20:39,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [855575948] [2023-12-02 13:20:39,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [855575948] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:20:39,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:20:39,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:20:39,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009522052] [2023-12-02 13:20:39,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:20:39,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:20:39,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:20:39,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:20:39,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:20:39,876 INFO L87 Difference]: Start difference. First operand has 92 states, 53 states have (on average 1.490566037735849) internal successors, (79), 54 states have internal predecessors, (79), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2023-12-02 13:20:42,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:20:44,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:20:46,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:20:46,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:20:46,308 INFO L93 Difference]: Finished difference Result 269 states and 519 transitions. [2023-12-02 13:20:46,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:20:46,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 221 [2023-12-02 13:20:46,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:20:46,321 INFO L225 Difference]: With dead ends: 269 [2023-12-02 13:20:46,322 INFO L226 Difference]: Without dead ends: 178 [2023-12-02 13:20:46,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:20:46,330 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 40 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:20:46,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 293 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 3 Unknown, 0 Unchecked, 6.4s Time] [2023-12-02 13:20:46,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-12-02 13:20:46,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 176. [2023-12-02 13:20:46,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 101 states have (on average 1.396039603960396) internal successors, (141), 101 states have internal predecessors, (141), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-02 13:20:46,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 285 transitions. [2023-12-02 13:20:46,406 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 285 transitions. Word has length 221 [2023-12-02 13:20:46,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:20:46,408 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 285 transitions. [2023-12-02 13:20:46,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2023-12-02 13:20:46,408 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 285 transitions. [2023-12-02 13:20:46,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-12-02 13:20:46,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:20:46,418 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:20:46,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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 13:20:46,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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 13:20:46,621 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:20:46,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:20:46,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1093945912, now seen corresponding path program 1 times [2023-12-02 13:20:46,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:20:46,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597564311] [2023-12-02 13:20:46,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:20:46,622 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 13:20:46,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:20:46,623 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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 13:20:46,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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 13:20:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:20:47,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 13:20:47,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:20:53,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 21 proven. 896 refuted. 0 times theorem prover too weak. 1603 trivial. 0 not checked. [2023-12-02 13:20:53,019 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:20:53,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 21 proven. 84 refuted. 0 times theorem prover too weak. 2415 trivial. 0 not checked. [2023-12-02 13:20:53,858 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:20:53,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597564311] [2023-12-02 13:20:53,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597564311] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:20:53,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [188628741] [2023-12-02 13:20:53,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:20:53,859 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 13:20:53,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 13:20:53,897 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 13:20:53,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 13:20:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:20:55,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 13:20:55,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:21:00,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 833 proven. 84 refuted. 0 times theorem prover too weak. 1603 trivial. 0 not checked. [2023-12-02 13:21:00,726 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:21:01,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 21 proven. 84 refuted. 0 times theorem prover too weak. 2415 trivial. 0 not checked. [2023-12-02 13:21:01,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [188628741] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:21:01,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738010317] [2023-12-02 13:21:01,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:21:01,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:21:01,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:21:01,297 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:21:01,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:21:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:21:01,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 13:21:01,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:21:06,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 833 proven. 84 refuted. 0 times theorem prover too weak. 1603 trivial. 0 not checked. [2023-12-02 13:21:06,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:21:07,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 21 proven. 84 refuted. 0 times theorem prover too weak. 2415 trivial. 0 not checked. [2023-12-02 13:21:07,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738010317] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:21:07,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 13:21:07,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 13 [2023-12-02 13:21:07,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852164401] [2023-12-02 13:21:07,065 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 13:21:07,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 13:21:07,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:21:07,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 13:21:07,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-12-02 13:21:07,069 INFO L87 Difference]: Start difference. First operand 176 states and 285 transitions. Second operand has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 13 states have internal predecessors, (94), 4 states have call successors, (72), 3 states have call predecessors, (72), 6 states have return successors, (73), 4 states have call predecessors, (73), 4 states have call successors, (73) [2023-12-02 13:21:11,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:21:13,596 WARN L539 Checker$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 [] [2023-12-02 13:21:15,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:21:17,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:21:19,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:21:21,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:21:23,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:21:25,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:21:27,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:21:28,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:21:28,065 INFO L93 Difference]: Finished difference Result 363 states and 579 transitions. [2023-12-02 13:21:28,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 13:21:28,067 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 13 states have internal predecessors, (94), 4 states have call successors, (72), 3 states have call predecessors, (72), 6 states have return successors, (73), 4 states have call predecessors, (73), 4 states have call successors, (73) Word has length 221 [2023-12-02 13:21:28,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:21:28,072 INFO L225 Difference]: With dead ends: 363 [2023-12-02 13:21:28,072 INFO L226 Difference]: Without dead ends: 188 [2023-12-02 13:21:28,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1328 GetRequests, 1308 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2023-12-02 13:21:28,075 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 252 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 229 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:21:28,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 309 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 379 Invalid, 7 Unknown, 0 Unchecked, 20.3s Time] [2023-12-02 13:21:28,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-12-02 13:21:28,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 184. [2023-12-02 13:21:28,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 107 states have (on average 1.355140186915888) internal successors, (145), 107 states have internal predecessors, (145), 72 states have call successors, (72), 4 states have call predecessors, (72), 4 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-02 13:21:28,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 289 transitions. [2023-12-02 13:21:28,118 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 289 transitions. Word has length 221 [2023-12-02 13:21:28,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:21:28,119 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 289 transitions. [2023-12-02 13:21:28,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 13 states have internal predecessors, (94), 4 states have call successors, (72), 3 states have call predecessors, (72), 6 states have return successors, (73), 4 states have call predecessors, (73), 4 states have call successors, (73) [2023-12-02 13:21:28,120 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 289 transitions. [2023-12-02 13:21:28,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-12-02 13:21:28,125 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:21:28,125 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:21:28,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 13:21:28,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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 13:21:28,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 13:21:28,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:21:28,729 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:21:28,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:21:28,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1030245833, now seen corresponding path program 1 times [2023-12-02 13:21:28,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:21:28,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459322088] [2023-12-02 13:21:28,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:21:28,731 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 13:21:28,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:21:28,732 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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 13:21:28,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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 (6)] Waiting until timeout for monitored process [2023-12-02 13:21:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:21:29,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 13:21:29,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:21:29,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2023-12-02 13:21:29,384 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:21:29,385 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:21:29,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459322088] [2023-12-02 13:21:29,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [459322088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:21:29,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:21:29,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:21:29,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445124821] [2023-12-02 13:21:29,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:21:29,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:21:29,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:21:29,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:21:29,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:21:29,388 INFO L87 Difference]: Start difference. First operand 184 states and 289 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2023-12-02 13:21:31,810 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 13:21:31,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:21:31,895 INFO L93 Difference]: Finished difference Result 386 states and 601 transitions. [2023-12-02 13:21:31,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:21:31,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 222 [2023-12-02 13:21:31,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:21:31,898 INFO L225 Difference]: With dead ends: 386 [2023-12-02 13:21:31,898 INFO L226 Difference]: Without dead ends: 203 [2023-12-02 13:21:31,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:21:31,900 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 37 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-02 13:21:31,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 273 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2023-12-02 13:21:31,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-12-02 13:21:31,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 202. [2023-12-02 13:21:31,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 116 states have (on average 1.3103448275862069) internal successors, (152), 117 states have internal predecessors, (152), 79 states have call successors, (79), 6 states have call predecessors, (79), 6 states have return successors, (79), 78 states have call predecessors, (79), 79 states have call successors, (79) [2023-12-02 13:21:31,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 310 transitions. [2023-12-02 13:21:31,943 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 310 transitions. Word has length 222 [2023-12-02 13:21:31,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:21:31,944 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 310 transitions. [2023-12-02 13:21:31,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2023-12-02 13:21:31,944 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 310 transitions. [2023-12-02 13:21:31,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-12-02 13:21:31,946 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:21:31,947 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:21:31,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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 (6)] Ended with exit code 0 [2023-12-02 13:21:32,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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 13:21:32,147 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:21:32,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:21:32,148 INFO L85 PathProgramCache]: Analyzing trace with hash 744761529, now seen corresponding path program 1 times [2023-12-02 13:21:32,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:21:32,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792408517] [2023-12-02 13:21:32,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:21:32,149 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 13:21:32,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:21:32,150 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/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 13:21:32,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d5bac3-edd0-499c-8c35-a30bcfb404e4/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-02 13:21:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:21:32,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 13:21:32,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:22:37,266 WARN L854 $PredicateComparison]: unable to prove that (and (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_9~0 .cse0) (fp.geq c_~var_1_9~0 .cse1)) (and (fp.leq c_~var_1_9~0 (fp.neg .cse1)) (fp.geq c_~var_1_9~0 (fp.neg .cse0))))) (fp.gt c_~var_1_13~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_20~0 c_~var_1_15~0) (fp.sub c_currentRoundingMode c_~var_1_21~0 c_~var_1_16~0))) (= c_~var_1_11~0 (_ bv64 8)) (not (= ((_ zero_extend 24) c_~var_1_8~0) (_ bv0 32))) (let ((.cse2 ((_ sign_extend 24) c_~var_1_12~0)) (.cse4 ((_ sign_extend 24) c_~var_1_22~0))) (let ((.cse3 (bvsgt .cse2 .cse4))) (or (and (= c_~var_1_19~0 ((_ extract 7 0) .cse2)) .cse3) (and (not .cse3) (= c_~var_1_19~0 ((_ extract 7 0) .cse4)))))) (bvsge ((_ zero_extend 16) c_~var_1_2~0) (_ bv32767 32)) (= (_ bv0 8) c_~var_1_14~0)) is different from false [2023-12-02 13:22:39,292 WARN L876 $PredicateComparison]: unable to prove that (and (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_9~0 .cse0) (fp.geq c_~var_1_9~0 .cse1)) (and (fp.leq c_~var_1_9~0 (fp.neg .cse1)) (fp.geq c_~var_1_9~0 (fp.neg .cse0))))) (fp.gt c_~var_1_13~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_20~0 c_~var_1_15~0) (fp.sub c_currentRoundingMode c_~var_1_21~0 c_~var_1_16~0))) (= c_~var_1_11~0 (_ bv64 8)) (not (= ((_ zero_extend 24) c_~var_1_8~0) (_ bv0 32))) (let ((.cse2 ((_ sign_extend 24) c_~var_1_12~0)) (.cse4 ((_ sign_extend 24) c_~var_1_22~0))) (let ((.cse3 (bvsgt .cse2 .cse4))) (or (and (= c_~var_1_19~0 ((_ extract 7 0) .cse2)) .cse3) (and (not .cse3) (= c_~var_1_19~0 ((_ extract 7 0) .cse4)))))) (bvsge ((_ zero_extend 16) c_~var_1_2~0) (_ bv32767 32)) (= (_ bv0 8) c_~var_1_14~0)) is different from true [2023-12-02 13:23:26,760 WARN L854 $PredicateComparison]: unable to prove that (and (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_9~0 .cse0) (fp.geq c_~var_1_9~0 .cse1)) (and (fp.leq c_~var_1_9~0 (fp.neg .cse1)) (fp.geq c_~var_1_9~0 (fp.neg .cse0))))) (fp.gt c_~var_1_13~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_20~0 c_~var_1_15~0) (fp.sub c_currentRoundingMode c_~var_1_21~0 c_~var_1_16~0))) (= c_~var_1_11~0 (_ bv64 8)) (not (= ((_ zero_extend 24) c_~var_1_8~0) (_ bv0 32))) (= c_~var_1_17~0 ((_ extract 15 0) (bvadd (bvneg ((_ zero_extend 16) c_~var_1_3~0)) ((_ zero_extend 16) c_~var_1_18~0)))) (let ((.cse2 ((_ sign_extend 24) c_~var_1_12~0)) (.cse4 ((_ sign_extend 24) c_~var_1_22~0))) (let ((.cse3 (bvsgt .cse2 .cse4))) (or (and (= c_~var_1_19~0 ((_ extract 7 0) .cse2)) .cse3) (and (not .cse3) (= c_~var_1_19~0 ((_ extract 7 0) .cse4)))))) (bvsge ((_ zero_extend 16) c_~var_1_2~0) (_ bv32767 32)) (= (_ bv0 8) c_~var_1_14~0)) is different from false [2023-12-02 13:23:28,788 WARN L876 $PredicateComparison]: unable to prove that (and (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_9~0 .cse0) (fp.geq c_~var_1_9~0 .cse1)) (and (fp.leq c_~var_1_9~0 (fp.neg .cse1)) (fp.geq c_~var_1_9~0 (fp.neg .cse0))))) (fp.gt c_~var_1_13~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_20~0 c_~var_1_15~0) (fp.sub c_currentRoundingMode c_~var_1_21~0 c_~var_1_16~0))) (= c_~var_1_11~0 (_ bv64 8)) (not (= ((_ zero_extend 24) c_~var_1_8~0) (_ bv0 32))) (= c_~var_1_17~0 ((_ extract 15 0) (bvadd (bvneg ((_ zero_extend 16) c_~var_1_3~0)) ((_ zero_extend 16) c_~var_1_18~0)))) (let ((.cse2 ((_ sign_extend 24) c_~var_1_12~0)) (.cse4 ((_ sign_extend 24) c_~var_1_22~0))) (let ((.cse3 (bvsgt .cse2 .cse4))) (or (and (= c_~var_1_19~0 ((_ extract 7 0) .cse2)) .cse3) (and (not .cse3) (= c_~var_1_19~0 ((_ extract 7 0) .cse4)))))) (bvsge ((_ zero_extend 16) c_~var_1_2~0) (_ bv32767 32)) (= (_ bv0 8) c_~var_1_14~0)) is different from true [2023-12-02 13:27:04,547 WARN L876 $PredicateComparison]: unable to prove that (and (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_9~0 .cse0) (fp.geq c_~var_1_9~0 .cse1)) (and (fp.leq c_~var_1_9~0 (fp.neg .cse1)) (fp.geq c_~var_1_9~0 (fp.neg .cse0))))) (fp.gt c_~var_1_13~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_20~0 c_~var_1_15~0) (fp.sub c_currentRoundingMode c_~var_1_21~0 c_~var_1_16~0))) (= c_~var_1_10~0 c_~var_1_9~0) (= c_~var_1_11~0 (_ bv64 8)) (not (= ((_ zero_extend 24) c_~var_1_8~0) (_ bv0 32))) (= c_~var_1_17~0 ((_ extract 15 0) (bvadd (bvneg ((_ zero_extend 16) c_~var_1_3~0)) ((_ zero_extend 16) c_~var_1_18~0)))) (let ((.cse2 ((_ sign_extend 24) c_~var_1_12~0)) (.cse4 ((_ sign_extend 24) c_~var_1_22~0))) (let ((.cse3 (bvsgt .cse2 .cse4))) (or (and (= c_~var_1_19~0 ((_ extract 7 0) .cse2)) .cse3) (and (not .cse3) (= c_~var_1_19~0 ((_ extract 7 0) .cse4)))))) (bvsge ((_ zero_extend 16) c_~var_1_2~0) (_ bv32767 32)) (= (_ bv0 8) c_~var_1_14~0)) is different from true [2023-12-02 13:32:02,018 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse10 ((_ zero_extend 16) c_~var_1_3~0))) (let ((.cse2 (bvneg .cse10)) (.cse4 ((_ zero_extend 16) c_~var_1_17~0)) (.cse3 ((_ zero_extend 16) c_~var_1_2~0))) (and (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_9~0 .cse0) (fp.geq c_~var_1_9~0 .cse1)) (and (fp.leq c_~var_1_9~0 (fp.neg .cse1)) (fp.geq c_~var_1_9~0 (fp.neg .cse0))))) (fp.gt c_~var_1_13~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_20~0 c_~var_1_15~0) (fp.sub c_currentRoundingMode c_~var_1_21~0 c_~var_1_16~0))) (= c_~var_1_10~0 c_~var_1_9~0) (bvsgt (bvadd .cse2 .cse3) .cse4) (= c_~var_1_11~0 (_ bv64 8)) (not (= ((_ zero_extend 24) c_~var_1_8~0) (_ bv0 32))) (= c_~var_1_17~0 ((_ extract 15 0) (bvadd .cse2 ((_ zero_extend 16) c_~var_1_18~0)))) (let ((.cse5 ((_ sign_extend 24) c_~var_1_12~0)) (.cse7 ((_ sign_extend 24) c_~var_1_22~0))) (let ((.cse6 (bvsgt .cse5 .cse7))) (or (and (= c_~var_1_19~0 ((_ extract 7 0) .cse5)) .cse6) (and (not .cse6) (= c_~var_1_19~0 ((_ extract 7 0) .cse7)))))) (let ((.cse9 (bvadd .cse10 ((_ sign_extend 24) (_ bv64 8))))) (let ((.cse8 (bvslt .cse9 .cse4))) (or (and (not .cse8) (= c_~var_1_1~0 .cse4)) (and (= c_~var_1_1~0 .cse9) .cse8)))) (bvsge .cse3 (_ bv32767 32)) (= (_ bv0 8) c_~var_1_14~0)))) is different from false [2023-12-02 13:33:09,220 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse10 ((_ zero_extend 16) c_~var_1_3~0))) (let ((.cse2 (bvneg .cse10)) (.cse4 ((_ zero_extend 16) c_~var_1_17~0)) (.cse3 ((_ zero_extend 16) c_~var_1_2~0))) (and (= (bvsdiv c_~var_1_1~0 (_ bv2 32)) |c_ULTIMATE.start_step_~stepLocal_1~0#1|) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_9~0 .cse0) (fp.geq c_~var_1_9~0 .cse1)) (and (fp.leq c_~var_1_9~0 (fp.neg .cse1)) (fp.geq c_~var_1_9~0 (fp.neg .cse0))))) (fp.gt c_~var_1_13~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_20~0 c_~var_1_15~0) (fp.sub c_currentRoundingMode c_~var_1_21~0 c_~var_1_16~0))) (= c_~var_1_10~0 c_~var_1_9~0) (bvsgt (bvadd .cse2 .cse3) .cse4) (= c_~var_1_11~0 (_ bv64 8)) (not (= ((_ zero_extend 24) c_~var_1_8~0) (_ bv0 32))) (= c_~var_1_17~0 ((_ extract 15 0) (bvadd .cse2 ((_ zero_extend 16) c_~var_1_18~0)))) (let ((.cse5 ((_ sign_extend 24) c_~var_1_12~0)) (.cse7 ((_ sign_extend 24) c_~var_1_22~0))) (let ((.cse6 (bvsgt .cse5 .cse7))) (or (and (= c_~var_1_19~0 ((_ extract 7 0) .cse5)) .cse6) (and (not .cse6) (= c_~var_1_19~0 ((_ extract 7 0) .cse7)))))) (let ((.cse9 (bvadd .cse10 ((_ sign_extend 24) (_ bv64 8))))) (let ((.cse8 (bvslt .cse9 .cse4))) (or (and (not .cse8) (= c_~var_1_1~0 .cse4)) (and (= c_~var_1_1~0 .cse9) .cse8)))) (bvsge .cse3 (_ bv32767 32)) (= (_ bv0 8) c_~var_1_14~0)))) is different from false [2023-12-02 13:33:11,251 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse10 ((_ zero_extend 16) c_~var_1_3~0))) (let ((.cse2 (bvneg .cse10)) (.cse4 ((_ zero_extend 16) c_~var_1_17~0)) (.cse3 ((_ zero_extend 16) c_~var_1_2~0))) (and (= (bvsdiv c_~var_1_1~0 (_ bv2 32)) |c_ULTIMATE.start_step_~stepLocal_1~0#1|) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_9~0 .cse0) (fp.geq c_~var_1_9~0 .cse1)) (and (fp.leq c_~var_1_9~0 (fp.neg .cse1)) (fp.geq c_~var_1_9~0 (fp.neg .cse0))))) (fp.gt c_~var_1_13~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_20~0 c_~var_1_15~0) (fp.sub c_currentRoundingMode c_~var_1_21~0 c_~var_1_16~0))) (= c_~var_1_10~0 c_~var_1_9~0) (bvsgt (bvadd .cse2 .cse3) .cse4) (= c_~var_1_11~0 (_ bv64 8)) (not (= ((_ zero_extend 24) c_~var_1_8~0) (_ bv0 32))) (= c_~var_1_17~0 ((_ extract 15 0) (bvadd .cse2 ((_ zero_extend 16) c_~var_1_18~0)))) (let ((.cse5 ((_ sign_extend 24) c_~var_1_12~0)) (.cse7 ((_ sign_extend 24) c_~var_1_22~0))) (let ((.cse6 (bvsgt .cse5 .cse7))) (or (and (= c_~var_1_19~0 ((_ extract 7 0) .cse5)) .cse6) (and (not .cse6) (= c_~var_1_19~0 ((_ extract 7 0) .cse7)))))) (let ((.cse9 (bvadd .cse10 ((_ sign_extend 24) (_ bv64 8))))) (let ((.cse8 (bvslt .cse9 .cse4))) (or (and (not .cse8) (= c_~var_1_1~0 .cse4)) (and (= c_~var_1_1~0 .cse9) .cse8)))) (bvsge .cse3 (_ bv32767 32)) (= (_ bv0 8) c_~var_1_14~0)))) is different from true [2023-12-02 13:34:30,862 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse11 ((_ zero_extend 16) c_~var_1_3~0))) (let ((.cse2 ((_ zero_extend 24) c_~var_1_8~0)) (.cse3 (bvneg .cse11)) (.cse5 ((_ zero_extend 16) c_~var_1_17~0)) (.cse4 ((_ zero_extend 16) c_~var_1_2~0))) (and (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_9~0 .cse0) (fp.geq c_~var_1_9~0 .cse1)) (and (fp.leq c_~var_1_9~0 (fp.neg .cse1)) (fp.geq c_~var_1_9~0 (fp.neg .cse0))))) (fp.gt c_~var_1_13~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_20~0 c_~var_1_15~0) (fp.sub c_currentRoundingMode c_~var_1_21~0 c_~var_1_16~0))) (not (bvslt (bvsdiv ((_ sign_extend 24) c_~var_1_19~0) .cse2) (bvsdiv c_~var_1_1~0 (_ bv2 32)))) (= c_~var_1_10~0 c_~var_1_9~0) (bvsgt (bvadd .cse3 .cse4) .cse5) (= c_~var_1_11~0 (_ bv64 8)) (not (= .cse2 (_ bv0 32))) (= c_~var_1_17~0 ((_ extract 15 0) (bvadd .cse3 ((_ zero_extend 16) c_~var_1_18~0)))) (let ((.cse6 ((_ sign_extend 24) c_~var_1_12~0)) (.cse8 ((_ sign_extend 24) c_~var_1_22~0))) (let ((.cse7 (bvsgt .cse6 .cse8))) (or (and (= c_~var_1_19~0 ((_ extract 7 0) .cse6)) .cse7) (and (not .cse7) (= c_~var_1_19~0 ((_ extract 7 0) .cse8)))))) (let ((.cse10 (bvadd .cse11 ((_ sign_extend 24) (_ bv64 8))))) (let ((.cse9 (bvslt .cse10 .cse5))) (or (and (not .cse9) (= c_~var_1_1~0 .cse5)) (and (= c_~var_1_1~0 .cse10) .cse9)))) (bvsge .cse4 (_ bv32767 32)) (= (_ bv0 8) c_~var_1_14~0)))) is different from false [2023-12-02 13:34:32,899 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse11 ((_ zero_extend 16) c_~var_1_3~0))) (let ((.cse2 ((_ zero_extend 24) c_~var_1_8~0)) (.cse3 (bvneg .cse11)) (.cse5 ((_ zero_extend 16) c_~var_1_17~0)) (.cse4 ((_ zero_extend 16) c_~var_1_2~0))) (and (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.leq c_~var_1_9~0 .cse0) (fp.geq c_~var_1_9~0 .cse1)) (and (fp.leq c_~var_1_9~0 (fp.neg .cse1)) (fp.geq c_~var_1_9~0 (fp.neg .cse0))))) (fp.gt c_~var_1_13~0 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_20~0 c_~var_1_15~0) (fp.sub c_currentRoundingMode c_~var_1_21~0 c_~var_1_16~0))) (not (bvslt (bvsdiv ((_ sign_extend 24) c_~var_1_19~0) .cse2) (bvsdiv c_~var_1_1~0 (_ bv2 32)))) (= c_~var_1_10~0 c_~var_1_9~0) (bvsgt (bvadd .cse3 .cse4) .cse5) (= c_~var_1_11~0 (_ bv64 8)) (not (= .cse2 (_ bv0 32))) (= c_~var_1_17~0 ((_ extract 15 0) (bvadd .cse3 ((_ zero_extend 16) c_~var_1_18~0)))) (let ((.cse6 ((_ sign_extend 24) c_~var_1_12~0)) (.cse8 ((_ sign_extend 24) c_~var_1_22~0))) (let ((.cse7 (bvsgt .cse6 .cse8))) (or (and (= c_~var_1_19~0 ((_ extract 7 0) .cse6)) .cse7) (and (not .cse7) (= c_~var_1_19~0 ((_ extract 7 0) .cse8)))))) (let ((.cse10 (bvadd .cse11 ((_ sign_extend 24) (_ bv64 8))))) (let ((.cse9 (bvslt .cse10 .cse5))) (or (and (not .cse9) (= c_~var_1_1~0 .cse5)) (and (= c_~var_1_1~0 .cse10) .cse9)))) (bvsge .cse4 (_ bv32767 32)) (= (_ bv0 8) c_~var_1_14~0)))) is different from true