./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire --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 d7eabdbab374be563cd8848c2ea71ab0b8442a8d3524e27c1a68fc35b28e5144 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:27:50,098 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:27:50,251 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:27:50,265 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:27:50,266 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:27:50,325 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:27:50,326 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:27:50,327 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:27:50,328 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:27:50,334 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:27:50,334 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:27:50,336 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:27:50,337 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:27:50,339 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:27:50,339 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:27:50,340 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:27:50,340 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:27:50,341 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:27:50,341 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:27:50,342 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:27:50,342 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:27:50,343 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:27:50,345 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:27:50,345 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:27:50,346 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:27:50,346 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:27:50,347 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:27:50,347 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:27:50,348 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:27:50,348 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:27:50,350 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:27:50,350 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:27:50,351 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:27:50,351 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:27:50,351 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:27:50,351 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:27:50,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:27:50,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:50,374 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:27:50,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:27:50,375 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:27:50,375 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:27:50,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:27:50,375 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:27:50,376 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:27:50,376 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:27:50,377 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:27:50,377 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_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7eabdbab374be563cd8848c2ea71ab0b8442a8d3524e27c1a68fc35b28e5144 [2023-11-23 21:27:50,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:27:50,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:27:50,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:27:50,809 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:27:50,809 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:27:50,811 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i [2023-11-23 21:27:53,944 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:27:54,233 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:27:54,235 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i [2023-11-23 21:27:54,251 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/data/9de8ca4ce/2d8e7669a9e847d4b4d7a29574546cae/FLAG824f5e646 [2023-11-23 21:27:54,266 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/data/9de8ca4ce/2d8e7669a9e847d4b4d7a29574546cae [2023-11-23 21:27:54,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:27:54,270 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:27:54,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:54,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:27:54,284 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:27:54,285 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4602012d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54, skipping insertion in model container [2023-11-23 21:27:54,295 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,352 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:27:54,527 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_a72033e8-2c79-47ba-82ff-ff68209d743e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i[915,928] [2023-11-23 21:27:54,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:54,644 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:27:54,657 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i[915,928] [2023-11-23 21:27:54,726 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:54,759 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:27:54,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54 WrapperNode [2023-11-23 21:27:54,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:54,761 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:54,762 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:27:54,762 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:27:54,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,795 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,850 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 197 [2023-11-23 21:27:54,850 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:54,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:27:54,851 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:27:54,852 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:27:54,861 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,866 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,867 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,882 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,886 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,891 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,894 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,901 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:27:54,902 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:27:54,902 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:27:54,902 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:27:54,903 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (1/1) ... [2023-11-23 21:27:54,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:54,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:27:54,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:27:54,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:27:55,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:27:55,013 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:27:55,013 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:27:55,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:27:55,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:27:55,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:27:55,217 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:27:55,220 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:27:55,829 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:27:56,293 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:27:56,294 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:27:56,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:56 BoogieIcfgContainer [2023-11-23 21:27:56,296 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:27:56,301 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:27:56,301 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:27:56,307 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:27:56,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:27:54" (1/3) ... [2023-11-23 21:27:56,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea34fc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:56, skipping insertion in model container [2023-11-23 21:27:56,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:54" (2/3) ... [2023-11-23 21:27:56,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea34fc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:56, skipping insertion in model container [2023-11-23 21:27:56,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:56" (3/3) ... [2023-11-23 21:27:56,314 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-6.i [2023-11-23 21:27:56,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:27:56,364 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:27:56,462 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:27:56,474 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;@7f1b1497, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:27:56,476 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:27:56,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 21:27:56,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-23 21:27:56,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:56,503 INFO L195 NwaCegarLoop]: trace histogram [23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:56,504 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:56,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:56,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1760944371, now seen corresponding path program 1 times [2023-11-23 21:27:56,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:27:56,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692623023] [2023-11-23 21:27:56,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:56,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:27:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:27:57,310 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:27:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:27:57,811 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:27:57,814 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:27:57,816 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:27:57,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:27:57,824 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:27:57,830 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:27:58,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:27:58 BoogieIcfgContainer [2023-11-23 21:27:58,035 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:27:58,037 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:27:58,038 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:27:58,038 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:27:58,039 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:56" (3/4) ... [2023-11-23 21:27:58,044 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:27:58,046 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:27:58,047 INFO L158 Benchmark]: Toolchain (without parser) took 3776.78ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 146.3MB in the beginning and 173.4MB in the end (delta: -27.1MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2023-11-23 21:27:58,048 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory was 98.2MB in the beginning and 98.1MB in the end (delta: 74.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:27:58,049 INFO L158 Benchmark]: CACSL2BoogieTranslator took 488.50ms. Allocated memory is still 178.3MB. Free memory was 146.1MB in the beginning and 133.4MB in the end (delta: 12.7MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2023-11-23 21:27:58,050 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.25ms. Allocated memory is still 178.3MB. Free memory was 133.4MB in the beginning and 128.6MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:27:58,056 INFO L158 Benchmark]: Boogie Preprocessor took 49.94ms. Allocated memory is still 178.3MB. Free memory was 128.6MB in the beginning and 125.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:27:58,056 INFO L158 Benchmark]: RCFGBuilder took 1394.19ms. Allocated memory is still 178.3MB. Free memory was 125.8MB in the beginning and 76.9MB in the end (delta: 48.9MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-23 21:27:58,059 INFO L158 Benchmark]: TraceAbstraction took 1734.16ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 76.1MB in the beginning and 173.4MB in the end (delta: -97.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-23 21:27:58,059 INFO L158 Benchmark]: Witness Printer took 8.48ms. Allocated memory is still 213.9MB. Free memory is still 173.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:27:58,072 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory was 98.2MB in the beginning and 98.1MB in the end (delta: 74.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 488.50ms. Allocated memory is still 178.3MB. Free memory was 146.1MB in the beginning and 133.4MB in the end (delta: 12.7MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.25ms. Allocated memory is still 178.3MB. Free memory was 133.4MB in the beginning and 128.6MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.94ms. Allocated memory is still 178.3MB. Free memory was 128.6MB in the beginning and 125.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1394.19ms. Allocated memory is still 178.3MB. Free memory was 125.8MB in the beginning and 76.9MB in the end (delta: 48.9MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1734.16ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 76.1MB in the beginning and 173.4MB in the end (delta: -97.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 8.48ms. Allocated memory is still 213.9MB. Free memory is still 173.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 179, overapproximation of shiftLeft at line 111, overapproximation of someBinaryArithmeticDOUBLEoperation at line 72, overapproximation of someBinaryDOUBLEComparisonOperation at line 109. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 2; [L23] unsigned char var_1_2 = 1; [L24] unsigned char var_1_3 = 0; [L25] unsigned short int var_1_5 = 34011; [L26] unsigned short int var_1_6 = 2; [L27] signed short int var_1_7 = -4; [L28] signed long int var_1_9 = -4; [L29] unsigned short int var_1_10 = 4; [L30] double var_1_12 = 1.8; [L31] double var_1_13 = 49.5; [L32] double var_1_14 = 0.0; [L33] double var_1_15 = 8.5; [L34] unsigned long int var_1_16 = 4; [L35] float var_1_17 = 3.65; [L36] unsigned char var_1_18 = 0; [L37] signed long int var_1_19 = 32; [L38] signed long int var_1_20 = 1000000000; [L39] signed long int var_1_21 = 1141305717; [L40] unsigned char var_1_22 = 50; [L41] unsigned char var_1_23 = 0; [L42] unsigned short int var_1_24 = 2; [L43] signed short int var_1_25 = -16; [L44] double var_1_26 = 15.6; [L45] double var_1_27 = 4.25; [L46] unsigned long int var_1_28 = 10; [L47] unsigned char last_1_var_1_22 = 50; [L183] isInitial = 1 [L184] FCALL initially() [L185] COND TRUE 1 [L186] CALL updateLastVariables() [L176] last_1_var_1_22 = var_1_22 [L186] RET updateLastVariables() [L187] CALL updateVariables() [L138] var_1_2 = __VERIFIER_nondet_uchar() [L139] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_3=0, var_1_5=34011, var_1_6=2, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L139] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_3=0, var_1_5=34011, var_1_6=2, var_1_7=-4, var_1_9=-4] [L140] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=34011, var_1_6=2, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L140] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=34011, var_1_6=2, var_1_7=-4, var_1_9=-4] [L141] var_1_3 = __VERIFIER_nondet_uchar() [L142] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_5=34011, var_1_6=2, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_5=34011, var_1_6=2, var_1_7=-4, var_1_9=-4] [L143] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=34011, var_1_6=2, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L143] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=34011, var_1_6=2, var_1_7=-4, var_1_9=-4] [L144] var_1_5 = __VERIFIER_nondet_ushort() [L145] CALL assume_abort_if_not(var_1_5 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=2, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_5 >= 32767) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=2, var_1_7=-4, var_1_9=-4] [L146] CALL assume_abort_if_not(var_1_5 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=2, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_5 <= 65534) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=2, var_1_7=-4, var_1_9=-4] [L147] var_1_6 = __VERIFIER_nondet_ushort() [L148] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_7=-4, var_1_9=-4] [L149] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_13=99/2, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L150] var_1_13 = __VERIFIER_nondet_double() [L151] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_14=0, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L152] var_1_14 = __VERIFIER_nondet_double() [L153] CALL assume_abort_if_not((var_1_14 >= 2305843.009213691390e+12F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L153] RET assume_abort_if_not((var_1_14 >= 2305843.009213691390e+12F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_15=17/2, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L154] var_1_15 = __VERIFIER_nondet_double() [L155] CALL assume_abort_if_not((var_1_15 >= -461168.6018427382800e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not((var_1_15 >= -461168.6018427382800e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=0, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L156] var_1_18 = __VERIFIER_nondet_uchar() [L157] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L158] CALL assume_abort_if_not(var_1_18 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not(var_1_18 <= 1) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1000000000, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L159] var_1_20 = __VERIFIER_nondet_long() [L160] CALL assume_abort_if_not(var_1_20 >= 536870911) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L160] RET assume_abort_if_not(var_1_20 >= 536870911) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L161] CALL assume_abort_if_not(var_1_20 <= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_20 <= 1073741823) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=1141305717, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L162] var_1_21 = __VERIFIER_nondet_long() [L163] CALL assume_abort_if_not(var_1_21 >= 1073741822) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=2147483646, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L163] RET assume_abort_if_not(var_1_21 >= 1073741822) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=2147483646, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L164] CALL assume_abort_if_not(var_1_21 <= 2147483646) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=2147483646, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not(var_1_21 <= 2147483646) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=2147483646, var_1_22=50, var_1_23=0, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L165] var_1_23 = __VERIFIER_nondet_uchar() [L166] CALL assume_abort_if_not(var_1_23 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=2147483646, var_1_22=50, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L166] RET assume_abort_if_not(var_1_23 >= 0) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=2147483646, var_1_22=50, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L167] CALL assume_abort_if_not(var_1_23 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=2147483646, var_1_22=50, var_1_23=254, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L167] RET assume_abort_if_not(var_1_23 <= 254) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=2147483646, var_1_22=50, var_1_23=254, var_1_24=2, var_1_25=-16, var_1_26=78/5, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L168] var_1_26 = __VERIFIER_nondet_double() [L169] CALL assume_abort_if_not((var_1_26 >= -922337.2036854776000e+13F && var_1_26 <= -1.0e-20F) || (var_1_26 <= 9223372.036854776000e+12F && var_1_26 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=2147483646, var_1_22=50, var_1_23=254, var_1_24=2, var_1_25=-16, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L169] RET assume_abort_if_not((var_1_26 >= -922337.2036854776000e+13F && var_1_26 <= -1.0e-20F) || (var_1_26 <= 9223372.036854776000e+12F && var_1_26 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=2147483646, var_1_22=50, var_1_23=254, var_1_24=2, var_1_25=-16, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L170] CALL assume_abort_if_not(var_1_26 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=2147483646, var_1_22=50, var_1_23=254, var_1_24=2, var_1_25=-16, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L170] RET assume_abort_if_not(var_1_26 != 0.0F) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=2147483646, var_1_22=50, var_1_23=254, var_1_24=2, var_1_25=-16, var_1_27=17/4, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L171] var_1_27 = __VERIFIER_nondet_double() [L172] CALL assume_abort_if_not((var_1_27 >= -922337.2036854776000e+13F && var_1_27 <= -1.0e-20F) || (var_1_27 <= 9223372.036854776000e+12F && var_1_27 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=2147483646, var_1_22=50, var_1_23=254, var_1_24=2, var_1_25=-16, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L172] RET assume_abort_if_not((var_1_27 >= -922337.2036854776000e+13F && var_1_27 <= -1.0e-20F) || (var_1_27 <= 9223372.036854776000e+12F && var_1_27 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=2147483646, var_1_22=50, var_1_23=254, var_1_24=2, var_1_25=-16, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L173] CALL assume_abort_if_not(var_1_27 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=2147483646, var_1_22=50, var_1_23=254, var_1_24=2, var_1_25=-16, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L20] COND FALSE !(!cond) [L173] RET assume_abort_if_not(var_1_27 != 0.0F) VAL [isInitial=1, last_1_var_1_22=50, var_1_10=4, var_1_12=9/5, var_1_16=4, var_1_17=73/20, var_1_18=1, var_1_19=32, var_1_1=2, var_1_20=1073741823, var_1_21=2147483646, var_1_22=50, var_1_23=254, var_1_24=2, var_1_25=-16, var_1_28=10, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=-4, var_1_9=-4] [L187] RET updateVariables() [L188] CALL step() [L51] var_1_9 = (((((last_1_var_1_22) < 0 ) ? -(last_1_var_1_22) : (last_1_var_1_22))) - last_1_var_1_22) [L52] unsigned char stepLocal_2 = var_1_18; [L53] COND TRUE stepLocal_2 || ((var_1_6 == var_1_9) || (var_1_2 && var_1_3)) [L54] var_1_22 = var_1_23 [L58] COND FALSE !(var_1_2 || var_1_3) [L61] var_1_1 = (((((var_1_5 - var_1_22)) < (var_1_22)) ? ((var_1_5 - var_1_22)) : (var_1_22))) [L63] COND FALSE !(var_1_22 <= (- 500)) [L68] var_1_7 = var_1_22 [L70] var_1_10 = (var_1_5 - (var_1_22 + 1000)) [L71] COND TRUE ! var_1_3 [L72] var_1_12 = ((var_1_13 - (var_1_14 - 63.5)) + var_1_15) [L76] unsigned char stepLocal_0 = var_1_22; [L77] COND FALSE !(\read(var_1_2)) [L80] COND TRUE ((((var_1_22) < (var_1_22)) ? (var_1_22) : (var_1_22))) <= stepLocal_0 [L81] var_1_16 = 128u [L86] COND TRUE \read(var_1_18) [L87] var_1_17 = (((((var_1_14) < (255.4f)) ? (var_1_14) : (255.4f))) + var_1_13) [L99] var_1_28 = var_1_21 [L100] COND FALSE !(! ((! var_1_3) && var_1_18)) [L103] COND TRUE var_1_22 < ((var_1_5 - var_1_23) * 32) [L104] var_1_24 = var_1_22 [L107] unsigned short int stepLocal_4 = var_1_24; [L108] unsigned short int stepLocal_3 = var_1_10; [L109] COND TRUE ((var_1_14 - var_1_13) / ((((var_1_26) > (var_1_27)) ? (var_1_26) : (var_1_27)))) >= var_1_15 [L110] COND TRUE var_1_14 >= var_1_13 [L111] EXPR var_1_22 << var_1_22 [L111] COND FALSE !((var_1_22 << var_1_22) <= stepLocal_4) [L114] var_1_25 = (var_1_16 + var_1_23) [L122] unsigned char stepLocal_1 = var_1_22; [L123] COND TRUE var_1_24 >= stepLocal_1 [L124] COND TRUE ! var_1_2 [L125] var_1_19 = (var_1_22 - (var_1_22 + (var_1_20 - 5))) [L188] RET step() [L189] CALL, EXPR property() [L179] EXPR (((((((((((var_1_2 || var_1_3) ? (var_1_1 == ((unsigned short int) ((((var_1_22) < 0 ) ? -(var_1_22) : (var_1_22))))) : (var_1_1 == ((unsigned short int) (((((var_1_5 - var_1_22)) < (var_1_22)) ? ((var_1_5 - var_1_22)) : (var_1_22)))))) && ((var_1_22 <= (- 500)) ? (var_1_2 ? (var_1_7 == ((signed short int) (var_1_22 - 64))) : 1) : (var_1_7 == ((signed short int) var_1_22)))) && (var_1_9 == ((signed long int) (((((last_1_var_1_22) < 0 ) ? -(last_1_var_1_22) : (last_1_var_1_22))) - last_1_var_1_22)))) && (var_1_10 == ((unsigned short int) (var_1_5 - (var_1_22 + 1000))))) && ((! var_1_3) ? (var_1_12 == ((double) ((var_1_13 - (var_1_14 - 63.5)) + var_1_15))) : (var_1_12 == ((double) (var_1_14 - var_1_13))))) && (var_1_2 ? (var_1_16 == ((unsigned long int) (var_1_9 + 200u))) : ((((((var_1_22) < (var_1_22)) ? (var_1_22) : (var_1_22))) <= var_1_22) ? (var_1_16 == ((unsigned long int) 128u)) : (var_1_16 == ((unsigned long int) var_1_22))))) && (var_1_18 ? (var_1_17 == ((float) (((((var_1_14) < (255.4f)) ? (var_1_14) : (255.4f))) + var_1_13))) : (var_1_3 ? (var_1_2 ? (var_1_17 == ((float) var_1_15)) : (var_1_17 == ((float) 0.050000000000000044f))) : (var_1_17 == ((float) var_1_13))))) && ((var_1_24 >= var_1_22) ? ((! var_1_2) ? (var_1_19 == ((signed long int) (var_1_22 - (var_1_22 + (var_1_20 - 5))))) : (var_1_2 ? (var_1_18 ? (var_1_19 == ((signed long int) ((var_1_21 - ((((var_1_20) > (var_1_22)) ? (var_1_20) : (var_1_22)))) - (var_1_22 + ((((var_1_25) < 0 ) ? -(var_1_25) : (var_1_25))))))) : 1) : 1)) : (var_1_19 == ((signed long int) var_1_20)))) && ((var_1_18 || ((var_1_6 == var_1_9) || (var_1_2 && var_1_3))) ? (var_1_22 == ((unsigned char) var_1_23)) : (var_1_22 == ((unsigned char) var_1_23)))) && ((! ((! var_1_3) && var_1_18)) ? (var_1_24 == ((unsigned short int) ((((((((var_1_22) < (var_1_22)) ? (var_1_22) : (var_1_22)))) < (var_1_28)) ? (((((var_1_22) < (var_1_22)) ? (var_1_22) : (var_1_22)))) : (var_1_28))))) : ((var_1_22 < ((var_1_5 - var_1_23) * 32)) ? (var_1_24 == ((unsigned short int) var_1_22)) : 1))) && ((((var_1_14 - var_1_13) / ((((var_1_26) > (var_1_27)) ? (var_1_26) : (var_1_27)))) >= var_1_15) ? ((var_1_14 >= var_1_13) ? (((var_1_22 << var_1_22) <= var_1_24) ? (var_1_25 == ((signed short int) (((((var_1_22) < (var_1_16)) ? (var_1_22) : (var_1_16))) - var_1_23))) : (var_1_25 == ((signed short int) (var_1_16 + var_1_23)))) : ((var_1_5 == var_1_10) ? (var_1_25 == ((signed short int) var_1_16)) : 1)) : 1) [L179-L180] return ((((((((((((var_1_2 || var_1_3) ? (var_1_1 == ((unsigned short int) ((((var_1_22) < 0 ) ? -(var_1_22) : (var_1_22))))) : (var_1_1 == ((unsigned short int) (((((var_1_5 - var_1_22)) < (var_1_22)) ? ((var_1_5 - var_1_22)) : (var_1_22)))))) && ((var_1_22 <= (- 500)) ? (var_1_2 ? (var_1_7 == ((signed short int) (var_1_22 - 64))) : 1) : (var_1_7 == ((signed short int) var_1_22)))) && (var_1_9 == ((signed long int) (((((last_1_var_1_22) < 0 ) ? -(last_1_var_1_22) : (last_1_var_1_22))) - last_1_var_1_22)))) && (var_1_10 == ((unsigned short int) (var_1_5 - (var_1_22 + 1000))))) && ((! var_1_3) ? (var_1_12 == ((double) ((var_1_13 - (var_1_14 - 63.5)) + var_1_15))) : (var_1_12 == ((double) (var_1_14 - var_1_13))))) && (var_1_2 ? (var_1_16 == ((unsigned long int) (var_1_9 + 200u))) : ((((((var_1_22) < (var_1_22)) ? (var_1_22) : (var_1_22))) <= var_1_22) ? (var_1_16 == ((unsigned long int) 128u)) : (var_1_16 == ((unsigned long int) var_1_22))))) && (var_1_18 ? (var_1_17 == ((float) (((((var_1_14) < (255.4f)) ? (var_1_14) : (255.4f))) + var_1_13))) : (var_1_3 ? (var_1_2 ? (var_1_17 == ((float) var_1_15)) : (var_1_17 == ((float) 0.050000000000000044f))) : (var_1_17 == ((float) var_1_13))))) && ((var_1_24 >= var_1_22) ? ((! var_1_2) ? (var_1_19 == ((signed long int) (var_1_22 - (var_1_22 + (var_1_20 - 5))))) : (var_1_2 ? (var_1_18 ? (var_1_19 == ((signed long int) ((var_1_21 - ((((var_1_20) > (var_1_22)) ? (var_1_20) : (var_1_22)))) - (var_1_22 + ((((var_1_25) < 0 ) ? -(var_1_25) : (var_1_25))))))) : 1) : 1)) : (var_1_19 == ((signed long int) var_1_20)))) && ((var_1_18 || ((var_1_6 == var_1_9) || (var_1_2 && var_1_3))) ? (var_1_22 == ((unsigned char) var_1_23)) : (var_1_22 == ((unsigned char) var_1_23)))) && ((! ((! var_1_3) && var_1_18)) ? (var_1_24 == ((unsigned short int) ((((((((var_1_22) < (var_1_22)) ? (var_1_22) : (var_1_22)))) < (var_1_28)) ? (((((var_1_22) < (var_1_22)) ? (var_1_22) : (var_1_22)))) : (var_1_28))))) : ((var_1_22 < ((var_1_5 - var_1_23) * 32)) ? (var_1_24 == ((unsigned short int) var_1_22)) : 1))) && ((((var_1_14 - var_1_13) / ((((var_1_26) > (var_1_27)) ? (var_1_26) : (var_1_27)))) >= var_1_15) ? ((var_1_14 >= var_1_13) ? (((var_1_22 << var_1_22) <= var_1_24) ? (var_1_25 == ((signed short int) (((((var_1_22) < (var_1_16)) ? (var_1_22) : (var_1_16))) - var_1_23))) : (var_1_25 == ((signed short int) (var_1_16 + var_1_23)))) : ((var_1_5 == var_1_10) ? (var_1_25 == ((signed short int) var_1_16)) : 1)) : 1)) && (var_1_28 == ((unsigned long int) var_1_21)) ; [L189] RET, EXPR property() [L189] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_22=50, var_1_10=31513, var_1_13=12500000000000011/250000000000000000, var_1_15=12500000000000011/250000000000000000, var_1_16=128, var_1_17=12500000000000011/250000000000000000, var_1_18=1, var_1_19=-1073741818, var_1_1=254, var_1_20=1073741823, var_1_21=2147483646, var_1_22=254, var_1_23=254, var_1_24=254, var_1_25=382, var_1_28=2147483646, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=254, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_22=50, var_1_10=31513, var_1_13=12500000000000011/250000000000000000, var_1_15=12500000000000011/250000000000000000, var_1_16=128, var_1_17=12500000000000011/250000000000000000, var_1_18=1, var_1_19=-1073741818, var_1_1=254, var_1_20=1073741823, var_1_21=2147483646, var_1_22=254, var_1_23=254, var_1_24=254, var_1_25=382, var_1_28=2147483646, var_1_2=0, var_1_3=0, var_1_5=32767, var_1_6=32767, var_1_7=254, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 1, TraceHistogramMax: 23, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:27:58,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire --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 d7eabdbab374be563cd8848c2ea71ab0b8442a8d3524e27c1a68fc35b28e5144 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:28:01,156 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:28:01,323 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:28:01,334 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:28:01,335 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:28:01,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:28:01,391 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:28:01,392 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:28:01,393 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:28:01,400 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:28:01,401 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:28:01,401 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:28:01,402 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:28:01,404 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:28:01,405 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:28:01,405 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:28:01,407 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:28:01,408 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:28:01,408 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:28:01,410 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:28:01,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:28:01,411 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:28:01,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:28:01,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:28:01,413 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:28:01,414 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:28:01,415 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:28:01,415 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:28:01,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:28:01,416 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:28:01,418 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:28:01,418 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:28:01,419 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:28:01,419 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:28:01,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:28:01,420 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:28:01,420 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:28:01,420 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:28:01,420 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:28:01,421 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:28:01,421 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:28:01,422 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:28:01,422 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:28:01,422 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:28:01,423 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_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7eabdbab374be563cd8848c2ea71ab0b8442a8d3524e27c1a68fc35b28e5144 [2023-11-23 21:28:01,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:28:01,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:28:01,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:28:01,916 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:28:01,917 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:28:01,918 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i [2023-11-23 21:28:05,171 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:28:05,581 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:28:05,582 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i [2023-11-23 21:28:05,595 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/data/b620e6025/a57c8ddd5aa14a248ee6f2dae158bfb4/FLAG864a8a8c5 [2023-11-23 21:28:05,615 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/data/b620e6025/a57c8ddd5aa14a248ee6f2dae158bfb4 [2023-11-23 21:28:05,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:28:05,620 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:28:05,622 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:28:05,622 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:28:05,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:28:05,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:28:05" (1/1) ... [2023-11-23 21:28:05,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e00428f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:05, skipping insertion in model container [2023-11-23 21:28:05,632 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:28:05" (1/1) ... [2023-11-23 21:28:05,700 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:28:05,956 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_a72033e8-2c79-47ba-82ff-ff68209d743e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i[915,928] [2023-11-23 21:28:06,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:28:06,171 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:28:06,195 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_a72033e8-2c79-47ba-82ff-ff68209d743e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-6.i[915,928] [2023-11-23 21:28:06,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:28:06,340 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:28:06,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:06 WrapperNode [2023-11-23 21:28:06,341 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:28:06,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:28:06,343 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:28:06,343 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:28:06,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:06" (1/1) ... [2023-11-23 21:28:06,395 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:06" (1/1) ... [2023-11-23 21:28:06,444 INFO L138 Inliner]: procedures = 27, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 174 [2023-11-23 21:28:06,445 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:28:06,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:28:06,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:28:06,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:28:06,476 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:06" (1/1) ... [2023-11-23 21:28:06,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:06" (1/1) ... [2023-11-23 21:28:06,494 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:06" (1/1) ... [2023-11-23 21:28:06,494 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:06" (1/1) ... [2023-11-23 21:28:06,535 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:06" (1/1) ... [2023-11-23 21:28:06,541 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:06" (1/1) ... [2023-11-23 21:28:06,545 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:06" (1/1) ... [2023-11-23 21:28:06,548 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:06" (1/1) ... [2023-11-23 21:28:06,570 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:28:06,571 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:28:06,571 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:28:06,571 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:28:06,572 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:06" (1/1) ... [2023-11-23 21:28:06,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:28:06,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:28:06,625 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:28:06,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:28:06,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:28:06,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:28:06,721 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:28:06,722 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:28:06,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:28:06,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:28:06,892 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:28:06,895 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:28:17,880 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:28:17,941 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:28:17,941 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:28:17,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:28:17 BoogieIcfgContainer [2023-11-23 21:28:17,942 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:28:17,945 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:28:17,945 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:28:17,948 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:28:17,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:28:05" (1/3) ... [2023-11-23 21:28:17,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b1efa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:28:17, skipping insertion in model container [2023-11-23 21:28:17,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:06" (2/3) ... [2023-11-23 21:28:17,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b1efa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:28:17, skipping insertion in model container [2023-11-23 21:28:17,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:28:17" (3/3) ... [2023-11-23 21:28:17,952 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-6.i [2023-11-23 21:28:17,973 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:28:17,973 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:28:18,017 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:28:18,024 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;@5ce57220, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:28:18,024 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:28:18,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 48 states have (on average 1.5208333333333333) internal successors, (73), 49 states have internal predecessors, (73), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 21:28:18,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-23 21:28:18,046 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:18,047 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:28:18,048 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:28:18,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:18,069 INFO L85 PathProgramCache]: Analyzing trace with hash -665579295, now seen corresponding path program 1 times [2023-11-23 21:28:18,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:28:18,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887410982] [2023-11-23 21:28:18,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:18,094 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 [2023-11-23 21:28:18,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:28:18,100 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:28:18,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:28:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:19,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:28:19,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:28:19,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 524 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2023-11-23 21:28:19,777 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:28:19,778 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:28:19,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887410982] [2023-11-23 21:28:19,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887410982] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:28:19,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:28:19,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:28:19,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824527743] [2023-11-23 21:28:19,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:28:19,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:28:19,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:28:19,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:28:19,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:28:19,846 INFO L87 Difference]: Start difference. First operand has 74 states, 48 states have (on average 1.5208333333333333) internal successors, (73), 49 states have internal predecessors, (73), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 21:28:22,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:28:22,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:28:22,527 INFO L93 Difference]: Finished difference Result 144 states and 257 transitions. [2023-11-23 21:28:22,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:28:22,670 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 147 [2023-11-23 21:28:22,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:28:22,680 INFO L225 Difference]: With dead ends: 144 [2023-11-23 21:28:22,680 INFO L226 Difference]: Without dead ends: 71 [2023-11-23 21:28:22,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:28:22,689 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:28:22,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2023-11-23 21:28:22,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-23 21:28:22,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2023-11-23 21:28:22,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 46 states have internal predecessors, (65), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 21:28:22,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 111 transitions. [2023-11-23 21:28:22,746 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 111 transitions. Word has length 147 [2023-11-23 21:28:22,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:28:22,747 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 111 transitions. [2023-11-23 21:28:22,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 21:28:22,747 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 111 transitions. [2023-11-23 21:28:22,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-23 21:28:22,752 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:22,753 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:28:22,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:28:22,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:28:22,970 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:28:22,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:22,971 INFO L85 PathProgramCache]: Analyzing trace with hash 462746599, now seen corresponding path program 1 times [2023-11-23 21:28:22,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:28:22,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [148313985] [2023-11-23 21:28:22,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:22,973 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 [2023-11-23 21:28:22,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:28:22,975 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:28:22,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:28:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:24,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:28:24,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:28:25,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-23 21:28:25,017 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:28:25,018 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:28:25,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [148313985] [2023-11-23 21:28:25,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [148313985] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:28:25,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:28:25,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:28:25,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118274935] [2023-11-23 21:28:25,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:28:25,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:28:25,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:28:25,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:28:25,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:28:25,025 INFO L87 Difference]: Start difference. First operand 71 states and 111 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-23 21:28:27,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:28:29,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:28:31,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:28:34,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:28:36,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:28:38,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:28:40,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:28:43,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:28:45,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:28:45,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:28:45,575 INFO L93 Difference]: Finished difference Result 199 states and 304 transitions. [2023-11-23 21:28:45,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:28:45,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 147 [2023-11-23 21:28:45,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:28:45,583 INFO L225 Difference]: With dead ends: 199 [2023-11-23 21:28:45,586 INFO L226 Difference]: Without dead ends: 129 [2023-11-23 21:28:45,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:28:45,590 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 72 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 8 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:28:45,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 334 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 46 Invalid, 9 Unknown, 0 Unchecked, 20.5s Time] [2023-11-23 21:28:45,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-23 21:28:45,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 113. [2023-11-23 21:28:45,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 85 states have (on average 1.4588235294117646) internal successors, (124), 86 states have internal predecessors, (124), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-23 21:28:45,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 174 transitions. [2023-11-23 21:28:45,648 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 174 transitions. Word has length 147 [2023-11-23 21:28:45,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:28:45,651 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 174 transitions. [2023-11-23 21:28:45,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-23 21:28:45,652 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 174 transitions. [2023-11-23 21:28:45,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-23 21:28:45,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:45,656 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:28:45,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:28:45,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:28:45,856 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:28:45,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:45,857 INFO L85 PathProgramCache]: Analyzing trace with hash -124059415, now seen corresponding path program 1 times [2023-11-23 21:28:45,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:28:45,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [347413431] [2023-11-23 21:28:45,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:45,859 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 [2023-11-23 21:28:45,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:28:45,860 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:28:45,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a72033e8-2c79-47ba-82ff-ff68209d743e/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:28:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:47,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 21:28:47,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:28:51,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 472 proven. 21 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-11-23 21:28:51,022 INFO L327 TraceCheckSpWp]: Computing backward predicates...