./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-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_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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 2e5a8347d3a9b80fad79cdf10685cc34077cb2edd813f8dbb459435f5a54aca3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:36:47,155 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:36:47,218 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:36:47,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:36:47,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:36:47,244 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:36:47,245 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:36:47,245 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:36:47,246 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:36:47,247 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:36:47,247 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:36:47,248 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:36:47,248 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:36:47,249 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:36:47,249 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:36:47,250 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:36:47,250 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:36:47,251 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:36:47,252 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:36:47,252 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:36:47,253 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:36:47,254 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:36:47,255 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:36:47,255 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:36:47,256 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:36:47,256 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:36:47,257 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:36:47,257 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:36:47,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:36:47,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:36:47,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:36:47,259 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:36:47,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:36:47,259 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:36:47,259 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:36:47,260 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:36:47,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:36:47,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:36:47,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:36:47,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:36:47,261 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:36:47,261 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:36:47,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:36:47,261 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:36:47,261 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:36:47,262 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:36:47,262 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:36:47,262 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_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e5a8347d3a9b80fad79cdf10685cc34077cb2edd813f8dbb459435f5a54aca3 [2023-12-02 13:36:47,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:36:47,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:36:47,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:36:47,493 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:36:47,493 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:36:47,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-37.i [2023-12-02 13:36:50,219 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:36:50,461 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:36:50,462 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-37.i [2023-12-02 13:36:50,473 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/data/3c498bfec/602c6e23358e48058e4ff8fcc4e35109/FLAGb643e47bc [2023-12-02 13:36:50,488 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/data/3c498bfec/602c6e23358e48058e4ff8fcc4e35109 [2023-12-02 13:36:50,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:36:50,493 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:36:50,494 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:36:50,494 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:36:50,500 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:36:50,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:36:50" (1/1) ... [2023-12-02 13:36:50,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50045a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:50, skipping insertion in model container [2023-12-02 13:36:50,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:36:50" (1/1) ... [2023-12-02 13:36:50,538 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:36:50,684 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_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-37.i[919,932] [2023-12-02 13:36:50,758 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:36:50,773 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:36:50,786 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_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-37.i[919,932] [2023-12-02 13:36:50,826 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:36:50,845 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:36:50,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:50 WrapperNode [2023-12-02 13:36:50,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:36:50,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:36:50,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:36:50,847 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:36:50,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:50" (1/1) ... [2023-12-02 13:36:50,868 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:50" (1/1) ... [2023-12-02 13:36:50,913 INFO L138 Inliner]: procedures = 26, calls = 49, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 272 [2023-12-02 13:36:50,913 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:36:50,914 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:36:50,914 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:36:50,914 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:36:50,925 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:50" (1/1) ... [2023-12-02 13:36:50,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:50" (1/1) ... [2023-12-02 13:36:50,929 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:50" (1/1) ... [2023-12-02 13:36:50,930 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:50" (1/1) ... [2023-12-02 13:36:50,946 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:50" (1/1) ... [2023-12-02 13:36:50,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:50" (1/1) ... [2023-12-02 13:36:50,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:50" (1/1) ... [2023-12-02 13:36:50,958 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:50" (1/1) ... [2023-12-02 13:36:50,964 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:36:50,965 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:36:50,965 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:36:50,965 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:36:50,966 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:50" (1/1) ... [2023-12-02 13:36:50,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:36:50,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:36:51,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:36:51,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:36:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:36:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:36:51,041 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:36:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:36:51,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:36:51,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:36:51,142 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:36:51,145 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:36:51,595 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:36:51,883 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:36:51,883 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:36:51,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:36:51 BoogieIcfgContainer [2023-12-02 13:36:51,885 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:36:51,887 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:36:51,887 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:36:51,890 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:36:51,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:36:50" (1/3) ... [2023-12-02 13:36:51,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20155ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:36:51, skipping insertion in model container [2023-12-02 13:36:51,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:50" (2/3) ... [2023-12-02 13:36:51,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20155ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:36:51, skipping insertion in model container [2023-12-02 13:36:51,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:36:51" (3/3) ... [2023-12-02 13:36:51,893 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-37.i [2023-12-02 13:36:51,919 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:36:51,920 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:36:51,999 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:36:52,007 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;@6e8bcb59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:36:52,007 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:36:52,012 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 13:36:52,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-02 13:36:52,028 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:36:52,029 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 13:36:52,030 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:36:52,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:36:52,036 INFO L85 PathProgramCache]: Analyzing trace with hash 2133086540, now seen corresponding path program 1 times [2023-12-02 13:36:52,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:36:52,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090445107] [2023-12-02 13:36:52,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:36:52,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:36:52,230 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 13:36:52,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1191578263] [2023-12-02 13:36:52,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:36:52,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:36:52,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:36:52,234 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:36:52,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:36:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:36:52,644 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 13:36:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 13:36:52,761 WARN L124 FreeRefinementEngine]: Strategy SIFA_TAIPAN was unsuccessful and could not determine trace feasibility [2023-12-02 13:36:52,764 INFO L360 BasicCegarLoop]: Counterexample might be feasible [2023-12-02 13:36:52,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 13:36:52,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-02 13:36:52,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 13:36:52,979 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 13:36:52,982 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:36:53,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:36:53 BoogieIcfgContainer [2023-12-02 13:36:53,013 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:36:53,014 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:36:53,014 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:36:53,014 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:36:53,014 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:36:51" (3/4) ... [2023-12-02 13:36:53,016 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 13:36:53,017 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:36:53,019 INFO L158 Benchmark]: Toolchain (without parser) took 2525.70ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 102.3MB in the beginning and 99.4MB in the end (delta: 2.9MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2023-12-02 13:36:53,019 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:36:53,020 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.41ms. Allocated memory is still 134.2MB. Free memory was 102.3MB in the beginning and 86.2MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 13:36:53,021 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.17ms. Allocated memory is still 134.2MB. Free memory was 86.2MB in the beginning and 81.6MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 13:36:53,021 INFO L158 Benchmark]: Boogie Preprocessor took 50.00ms. Allocated memory is still 134.2MB. Free memory was 81.6MB in the beginning and 79.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:36:53,022 INFO L158 Benchmark]: RCFGBuilder took 920.06ms. Allocated memory is still 134.2MB. Free memory was 79.2MB in the beginning and 54.8MB in the end (delta: 24.4MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2023-12-02 13:36:53,023 INFO L158 Benchmark]: TraceAbstraction took 1126.02ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 54.0MB in the beginning and 100.4MB in the end (delta: -46.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:36:53,023 INFO L158 Benchmark]: Witness Printer took 3.85ms. Allocated memory is still 176.2MB. Free memory was 100.4MB in the beginning and 99.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:36:53,027 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.41ms. Allocated memory is still 134.2MB. Free memory was 102.3MB in the beginning and 86.2MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.17ms. Allocated memory is still 134.2MB. Free memory was 86.2MB in the beginning and 81.6MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.00ms. Allocated memory is still 134.2MB. Free memory was 81.6MB in the beginning and 79.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 920.06ms. Allocated memory is still 134.2MB. Free memory was 79.2MB in the beginning and 54.8MB in the end (delta: 24.4MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1126.02ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 54.0MB in the beginning and 100.4MB in the end (delta: -46.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.85ms. Allocated memory is still 176.2MB. Free memory was 100.4MB in the beginning and 99.4MB in the end (delta: 1.0MB). 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 114, overapproximation of bitwiseOr at line 82, overapproximation of bitwiseAnd at line 82, overapproximation of someBinaryArithmeticDOUBLEoperation at line 104, overapproximation of someBinaryDOUBLEComparisonOperation at line 98. 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] COND FALSE !((~ (- var_1_24)) < var_1_25) [L68] COND TRUE var_1_24 > var_1_25 [L69] var_1_27 = ((((var_1_24) > (var_1_23)) ? (var_1_24) : (var_1_23))) [L71] 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)))))) [L74] COND TRUE var_1_26 <= 16 [L75] var_1_29 = (((((var_1_30) < 0 ) ? -(var_1_30) : (var_1_30))) - var_1_31) [L77] COND TRUE var_1_23 >= var_1_27 [L78] var_1_32 = ((((4) < (((((var_1_26) < ((var_1_31 - var_1_33))) ? (var_1_26) : ((var_1_31 - var_1_33)))))) ? (4) : (((((var_1_26) < ((var_1_31 - var_1_33))) ? (var_1_26) : ((var_1_31 - var_1_33))))))) [L82] EXPR var_1_28 & var_1_32 [L82] EXPR (var_1_28 & var_1_32) ^ var_1_23 [L82] EXPR var_1_29 & var_1_33 [L82] COND FALSE !(((var_1_28 & var_1_32) ^ var_1_23) < (var_1_29 & var_1_33)) [L87] EXPR var_1_28 & (~ var_1_29) [L87] COND TRUE (var_1_28 & (~ var_1_29)) <= var_1_34 [L88] COND FALSE !(\read(var_1_35)) [L96] signed long int stepLocal_2 = var_1_3 + last_1_var_1_19; [L97] COND FALSE !(\read(var_1_14)) [L108] COND FALSE !(var_1_13 > ((var_1_20 - var_1_15) - (var_1_21 - var_1_16))) [L111] var_1_19 = var_1_12 [L113] var_1_17 = (var_1_18 - var_1_3) [L114] COND TRUE (var_1_17 >= var_1_17) || (var_1_9 > last_1_var_1_10) [L115] var_1_10 = var_1_9 [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: 1.0s, 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, 0.3s 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 13:36:53,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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 2e5a8347d3a9b80fad79cdf10685cc34077cb2edd813f8dbb459435f5a54aca3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:36:55,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:36:55,101 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 13:36:55,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:36:55,108 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:36:55,136 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:36:55,137 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:36:55,137 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:36:55,138 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:36:55,139 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:36:55,139 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:36:55,140 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:36:55,140 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:36:55,141 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:36:55,142 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:36:55,142 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:36:55,143 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:36:55,144 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:36:55,144 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:36:55,145 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:36:55,145 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:36:55,146 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:36:55,146 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:36:55,147 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:36:55,147 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 13:36:55,148 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 13:36:55,148 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 13:36:55,149 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:36:55,149 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:36:55,150 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:36:55,150 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:36:55,151 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 13:36:55,151 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:36:55,151 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:36:55,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:36:55,152 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:36:55,152 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:36:55,152 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:36:55,153 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 13:36:55,153 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 13:36:55,153 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:36:55,153 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:36:55,154 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:36:55,154 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:36:55,154 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_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e5a8347d3a9b80fad79cdf10685cc34077cb2edd813f8dbb459435f5a54aca3 [2023-12-02 13:36:55,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:36:55,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:36:55,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:36:55,485 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:36:55,486 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:36:55,487 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-37.i [2023-12-02 13:36:58,295 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:36:58,498 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:36:58,499 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-37.i [2023-12-02 13:36:58,510 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/data/9693bd3e0/5ab9c66334ba40bc9ef20cd4e3eaae0f/FLAGda08a271c [2023-12-02 13:36:58,524 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/data/9693bd3e0/5ab9c66334ba40bc9ef20cd4e3eaae0f [2023-12-02 13:36:58,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:36:58,528 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:36:58,529 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:36:58,529 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:36:58,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:36:58,534 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:36:58" (1/1) ... [2023-12-02 13:36:58,535 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61050744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58, skipping insertion in model container [2023-12-02 13:36:58,535 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:36:58" (1/1) ... [2023-12-02 13:36:58,572 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:36:58,696 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_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-37.i[919,932] [2023-12-02 13:36:58,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:36:58,789 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:36:58,800 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_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-37.i[919,932] [2023-12-02 13:36:58,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:36:58,886 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:36:58,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58 WrapperNode [2023-12-02 13:36:58,887 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:36:58,888 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:36:58,888 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:36:58,888 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:36:58,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2023-12-02 13:36:58,933 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2023-12-02 13:36:58,965 INFO L138 Inliner]: procedures = 27, calls = 49, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 217 [2023-12-02 13:36:58,966 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:36:58,967 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:36:58,967 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:36:58,967 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:36:58,978 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2023-12-02 13:36:58,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2023-12-02 13:36:58,984 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2023-12-02 13:36:58,985 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2023-12-02 13:36:59,000 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2023-12-02 13:36:59,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2023-12-02 13:36:59,008 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2023-12-02 13:36:59,011 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2023-12-02 13:36:59,017 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:36:59,018 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:36:59,018 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:36:59,019 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:36:59,019 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (1/1) ... [2023-12-02 13:36:59,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:36:59,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:36:59,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:36:59,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:36:59,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:36:59,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 13:36:59,082 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 13:36:59,082 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 13:36:59,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:36:59,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:36:59,177 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:36:59,179 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:37:07,947 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:37:07,992 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:37:07,993 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:37:07,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:37:07 BoogieIcfgContainer [2023-12-02 13:37:07,993 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:37:07,996 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:37:07,997 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:37:08,000 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:37:08,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:36:58" (1/3) ... [2023-12-02 13:37:08,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3599b4af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:37:08, skipping insertion in model container [2023-12-02 13:37:08,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:36:58" (2/3) ... [2023-12-02 13:37:08,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3599b4af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:37:08, skipping insertion in model container [2023-12-02 13:37:08,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:37:07" (3/3) ... [2023-12-02 13:37:08,003 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-37.i [2023-12-02 13:37:08,022 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:37:08,022 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:37:08,075 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:37:08,082 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;@7ed704e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:37:08,083 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:37:08,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 54 states have (on average 1.4814814814814814) internal successors, (80), 55 states have internal predecessors, (80), 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 13:37:08,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-12-02 13:37:08,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:37:08,106 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 13:37:08,106 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:37:08,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:37:08,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1634516388, now seen corresponding path program 1 times [2023-12-02 13:37:08,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:37:08,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605091132] [2023-12-02 13:37:08,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:37:08,139 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 13:37:08,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:37:08,141 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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 13:37:08,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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 13:37:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:37:08,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 13:37:08,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:37:08,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 1174 proven. 0 refuted. 0 times theorem prover too weak. 1346 trivial. 0 not checked. [2023-12-02 13:37:08,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:37:08,973 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:37:08,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605091132] [2023-12-02 13:37:08,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605091132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:37:08,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:37:08,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:37:08,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026304366] [2023-12-02 13:37:08,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:37:08,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 13:37:08,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:37:09,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 13:37:09,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:37:09,014 INFO L87 Difference]: Start difference. First operand has 93 states, 54 states have (on average 1.4814814814814814) internal successors, (80), 55 states have internal predecessors, (80), 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 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-02 13:37:11,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:37:11,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:37:11,252 INFO L93 Difference]: Finished difference Result 183 states and 338 transitions. [2023-12-02 13:37:11,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 13:37:11,305 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 222 [2023-12-02 13:37:11,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:37:11,313 INFO L225 Difference]: With dead ends: 183 [2023-12-02 13:37:11,313 INFO L226 Difference]: Without dead ends: 91 [2023-12-02 13:37:11,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:37:11,322 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:37:11,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 143 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2023-12-02 13:37:11,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-12-02 13:37:11,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-12-02 13:37:11,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 53 states have internal predecessors, (74), 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 13:37:11,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 146 transitions. [2023-12-02 13:37:11,372 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 146 transitions. Word has length 222 [2023-12-02 13:37:11,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:37:11,372 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 146 transitions. [2023-12-02 13:37:11,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-02 13:37:11,373 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 146 transitions. [2023-12-02 13:37:11,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-12-02 13:37:11,396 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:37:11,397 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 13:37:11,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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 13:37:11,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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 13:37:11,598 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:37:11,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:37:11,598 INFO L85 PathProgramCache]: Analyzing trace with hash 397477216, now seen corresponding path program 1 times [2023-12-02 13:37:11,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:37:11,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2052365063] [2023-12-02 13:37:11,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:37:11,600 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 13:37:11,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:37:11,601 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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 13:37:11,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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 13:37:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:37:12,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:37:12,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:37:13,682 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 13:37:13,682 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:37:13,683 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:37:13,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2052365063] [2023-12-02 13:37:13,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2052365063] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:37:13,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:37:13,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:37:13,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069474807] [2023-12-02 13:37:13,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:37:13,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:37:13,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:37:13,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:37:13,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:37:13,689 INFO L87 Difference]: Start difference. First operand 91 states and 146 transitions. Second operand has 4 states, 4 states have (on average 11.25) 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 13:37:16,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:37:18,426 WARN L539 Checker$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 13:37:20,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:37:22,433 WARN L539 Checker$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 13:37:24,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:37:26,440 WARN L539 Checker$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 13:37:26,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:37:26,568 INFO L93 Difference]: Finished difference Result 360 states and 579 transitions. [2023-12-02 13:37:26,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:37:26,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) 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 13:37:26,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:37:26,576 INFO L225 Difference]: With dead ends: 360 [2023-12-02 13:37:26,576 INFO L226 Difference]: Without dead ends: 270 [2023-12-02 13:37:26,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:37:26,579 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 216 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2023-12-02 13:37:26,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 444 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 6 Unknown, 0 Unchecked, 12.8s Time] [2023-12-02 13:37:26,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-12-02 13:37:26,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 266. [2023-12-02 13:37:26,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 154 states have (on average 1.396103896103896) internal successors, (215), 154 states have internal predecessors, (215), 108 states have call successors, (108), 3 states have call predecessors, (108), 3 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2023-12-02 13:37:26,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 431 transitions. [2023-12-02 13:37:26,636 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 431 transitions. Word has length 222 [2023-12-02 13:37:26,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:37:26,638 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 431 transitions. [2023-12-02 13:37:26,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) 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 13:37:26,638 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 431 transitions. [2023-12-02 13:37:26,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-12-02 13:37:26,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:37:26,643 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 13:37:26,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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)] Forceful destruction successful, exit code 0 [2023-12-02 13:37:26,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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 13:37:26,849 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:37:26,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:37:26,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1907396962, now seen corresponding path program 1 times [2023-12-02 13:37:26,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:37:26,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282418624] [2023-12-02 13:37:26,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:37:26,851 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 13:37:26,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:37:26,852 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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 13:37:26,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-02 13:37:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:37:27,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 13:37:27,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:37:33,093 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 13:37:33,093 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:37:33,971 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 13:37:33,971 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:37:33,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282418624] [2023-12-02 13:37:33,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282418624] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:37:33,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [860173275] [2023-12-02 13:37:33,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:37:33,973 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 13:37:33,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 13:37:33,977 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 13:37:33,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 13:37:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:37:35,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 13:37:35,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:37:41,010 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 13:37:41,010 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:37:41,529 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 13:37:41,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [860173275] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:37:41,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713165017] [2023-12-02 13:37:41,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:37:41,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:37:41,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:37:41,531 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:37:41,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 13:37:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:37:41,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 13:37:41,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:37:47,126 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 13:37:47,126 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:37:47,774 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 13:37:47,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713165017] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:37:47,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 13:37:47,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 13 [2023-12-02 13:37:47,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792133964] [2023-12-02 13:37:47,776 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 13:37:47,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 13:37:47,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:37:47,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 13:37:47,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-12-02 13:37:47,780 INFO L87 Difference]: Start difference. First operand 266 states and 431 transitions. Second operand has 13 states, 13 states have (on average 7.384615384615385) internal successors, (96), 13 states have internal predecessors, (96), 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 13:37:52,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:37:53,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:37:56,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:37:58,076 WARN L539 Checker$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 13:37:59,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:01,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:04,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:06,015 WARN L539 Checker$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 13:38:08,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 13:38:10,021 WARN L539 Checker$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 13:38:12,029 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 13:38:12,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:38:12,163 INFO L93 Difference]: Finished difference Result 549 states and 876 transitions. [2023-12-02 13:38:12,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 13:38:12,164 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.384615384615385) internal successors, (96), 13 states have internal predecessors, (96), 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 222 [2023-12-02 13:38:12,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:38:12,169 INFO L225 Difference]: With dead ends: 549 [2023-12-02 13:38:12,169 INFO L226 Difference]: Without dead ends: 284 [2023-12-02 13:38:12,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1334 GetRequests, 1314 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 13:38:12,173 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 261 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 186 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2023-12-02 13:38:12,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 311 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 377 Invalid, 8 Unknown, 0 Unchecked, 23.6s Time] [2023-12-02 13:38:12,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-12-02 13:38:12,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 278. [2023-12-02 13:38:12,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 163 states have (on average 1.3558282208588956) internal successors, (221), 163 states have internal predecessors, (221), 108 states have call successors, (108), 6 states have call predecessors, (108), 6 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2023-12-02 13:38:12,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 437 transitions. [2023-12-02 13:38:12,225 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 437 transitions. Word has length 222 [2023-12-02 13:38:12,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:38:12,226 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 437 transitions. [2023-12-02 13:38:12,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.384615384615385) internal successors, (96), 13 states have internal predecessors, (96), 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 13:38:12,227 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 437 transitions. [2023-12-02 13:38:12,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-02 13:38:12,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:38:12,231 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, 1] [2023-12-02 13:38:12,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-02 13:38:12,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-02 13:38:12,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 13:38:12,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:38:12,832 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:38:12,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:38:12,833 INFO L85 PathProgramCache]: Analyzing trace with hash 191940304, now seen corresponding path program 1 times [2023-12-02 13:38:12,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:38:12,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466647385] [2023-12-02 13:38:12,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:38:12,833 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 13:38:12,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:38:12,834 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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 13:38:12,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d5da1f-09bc-4b4b-b106-cd8a5cb2acd9/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 13:38:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:38:13,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 13:38:13,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:39:09,759 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))))) (not (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_12~0 c_~var_1_19~0) (= c_~var_1_11~0 (_ bv64 8)) (not (= ((_ zero_extend 24) c_~var_1_8~0) (_ bv0 32))) (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 13:39:52,197 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))))) (not (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_12~0 c_~var_1_19~0) (= 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)))) (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 13:40:36,771 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))))) (not (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_12~0 c_~var_1_19~0) (= 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)))) (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 13:40:38,798 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))))) (not (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_12~0 c_~var_1_19~0) (= 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)))) (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 13:43:07,353 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse7 ((_ zero_extend 16) c_~var_1_3~0))) (let ((.cse2 (bvneg .cse7)) (.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))))) (not (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_12~0 c_~var_1_19~0) (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 ((.cse6 (bvadd .cse7 ((_ sign_extend 24) (_ bv64 8))))) (let ((.cse5 (bvslt .cse6 .cse4))) (or (and (not .cse5) (= c_~var_1_1~0 .cse4)) (and (= c_~var_1_1~0 .cse6) .cse5)))) (bvsge .cse3 (_ bv32767 32)) (= (_ bv0 8) c_~var_1_14~0)))) is different from false [2023-12-02 13:43:09,379 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse7 ((_ zero_extend 16) c_~var_1_3~0))) (let ((.cse2 (bvneg .cse7)) (.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))))) (not (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_12~0 c_~var_1_19~0) (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 ((.cse6 (bvadd .cse7 ((_ sign_extend 24) (_ bv64 8))))) (let ((.cse5 (bvslt .cse6 .cse4))) (or (and (not .cse5) (= c_~var_1_1~0 .cse4)) (and (= c_~var_1_1~0 .cse6) .cse5)))) (bvsge .cse3 (_ bv32767 32)) (= (_ bv0 8) c_~var_1_14~0)))) is different from true [2023-12-02 13:44:18,510 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse7 ((_ zero_extend 16) c_~var_1_3~0))) (let ((.cse2 (bvneg .cse7)) (.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))))) (not (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_12~0 c_~var_1_19~0) (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 ((.cse6 (bvadd .cse7 ((_ sign_extend 24) (_ bv64 8))))) (let ((.cse5 (bvslt .cse6 .cse4))) (or (and (not .cse5) (= c_~var_1_1~0 .cse4)) (and (= c_~var_1_1~0 .cse6) .cse5)))) (bvsge .cse3 (_ bv32767 32)) (= (_ bv0 8) c_~var_1_14~0)))) is different from false [2023-12-02 13:45:18,914 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse8 ((_ zero_extend 16) c_~var_1_3~0))) (let ((.cse2 ((_ zero_extend 24) c_~var_1_8~0)) (.cse3 (bvneg .cse8)) (.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))))) (not (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) (= c_~var_1_12~0 c_~var_1_19~0) (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 ((.cse7 (bvadd .cse8 ((_ sign_extend 24) (_ bv64 8))))) (let ((.cse6 (bvslt .cse7 .cse5))) (or (and (not .cse6) (= c_~var_1_1~0 .cse5)) (and (= c_~var_1_1~0 .cse7) .cse6)))) (bvsge .cse4 (_ bv32767 32)) (= (_ bv0 8) c_~var_1_14~0)))) is different from false