./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ --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 18f661507baa99a6860677d13bda352b5068a9ab896ed00822695643614eba74 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:51:06,027 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:51:06,162 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:51:06,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:51:06,174 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:51:06,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:51:06,222 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:51:06,222 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:51:06,223 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:51:06,229 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:51:06,229 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:51:06,230 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:51:06,231 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:51:06,233 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:51:06,233 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:51:06,234 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:51:06,234 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:51:06,235 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:51:06,235 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:51:06,236 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:51:06,236 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:51:06,237 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:51:06,238 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:51:06,239 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:51:06,239 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:51:06,240 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:51:06,240 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:51:06,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:51:06,241 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:51:06,242 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:51:06,243 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:51:06,244 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:51:06,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:51:06,245 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:51:06,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:51:06,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:51:06,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:51:06,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:51:06,246 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:51:06,246 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:51:06,247 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:51:06,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:51:06,248 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:51:06,248 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:51:06,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:51:06,249 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_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18f661507baa99a6860677d13bda352b5068a9ab896ed00822695643614eba74 [2023-11-19 04:51:06,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:51:06,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:51:06,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:51:06,603 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:51:06,603 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:51:06,606 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i [2023-11-19 04:51:09,761 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:51:10,059 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:51:10,062 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i [2023-11-19 04:51:10,074 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/data/e04d879eb/99a74e8e270441f7a10756aef26a0506/FLAG6d57a6beb [2023-11-19 04:51:10,093 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/data/e04d879eb/99a74e8e270441f7a10756aef26a0506 [2023-11-19 04:51:10,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:51:10,105 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:51:10,106 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:51:10,106 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:51:10,113 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:51:10,113 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:51:10" (1/1) ... [2023-11-19 04:51:10,115 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ad90aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:10, skipping insertion in model container [2023-11-19 04:51:10,115 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:51:10" (1/1) ... [2023-11-19 04:51:10,156 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:51:10,321 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_73d95ec4-dfb3-4fef-9326-8495bd63478e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i[916,929] [2023-11-19 04:51:10,426 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:51:10,440 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:51:10,469 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_73d95ec4-dfb3-4fef-9326-8495bd63478e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i[916,929] [2023-11-19 04:51:10,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:51:10,550 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:51:10,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:10 WrapperNode [2023-11-19 04:51:10,550 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:51:10,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:51:10,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:51:10,552 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:51:10,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:10" (1/1) ... [2023-11-19 04:51:10,574 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:10" (1/1) ... [2023-11-19 04:51:10,651 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 266 [2023-11-19 04:51:10,652 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:51:10,653 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:51:10,653 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:51:10,653 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:51:10,663 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:10" (1/1) ... [2023-11-19 04:51:10,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:10" (1/1) ... [2023-11-19 04:51:10,670 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:10" (1/1) ... [2023-11-19 04:51:10,670 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:10" (1/1) ... [2023-11-19 04:51:10,690 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:10" (1/1) ... [2023-11-19 04:51:10,696 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:10" (1/1) ... [2023-11-19 04:51:10,705 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:10" (1/1) ... [2023-11-19 04:51:10,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:10" (1/1) ... [2023-11-19 04:51:10,731 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:51:10,741 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:51:10,741 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:51:10,741 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:51:10,742 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:10" (1/1) ... [2023-11-19 04:51:10,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:51:10,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:51:10,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:51:10,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:51:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:51:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:51:10,855 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:51:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:51:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:51:10,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:51:11,035 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:51:11,038 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:51:11,745 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:51:12,427 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:51:12,428 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:51:12,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:51:12 BoogieIcfgContainer [2023-11-19 04:51:12,435 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:51:12,438 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:51:12,438 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:51:12,442 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:51:12,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:51:10" (1/3) ... [2023-11-19 04:51:12,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e313eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:51:12, skipping insertion in model container [2023-11-19 04:51:12,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:10" (2/3) ... [2023-11-19 04:51:12,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e313eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:51:12, skipping insertion in model container [2023-11-19 04:51:12,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:51:12" (3/3) ... [2023-11-19 04:51:12,447 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-59.i [2023-11-19 04:51:12,469 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:51:12,469 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:51:12,530 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:51:12,539 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;@7ed28298, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:51:12,540 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:51:12,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-19 04:51:12,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-19 04:51:12,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:12,563 INFO L195 NwaCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:51:12,563 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:51:12,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:12,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1066838485, now seen corresponding path program 1 times [2023-11-19 04:51:12,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:51:12,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173011103] [2023-11-19 04:51:12,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:12,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:51:12,809 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 04:51:12,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1393815438] [2023-11-19 04:51:12,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:12,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:51:12,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:51:12,827 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:51:12,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:51:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:51:13,249 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:51:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:51:13,655 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:51:13,658 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:51:13,659 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:51:13,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 04:51:13,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 04:51:13,880 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:51:13,885 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:51:14,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:51:14 BoogieIcfgContainer [2023-11-19 04:51:14,012 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:51:14,013 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:51:14,013 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:51:14,013 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:51:14,014 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:51:12" (3/4) ... [2023-11-19 04:51:14,017 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:51:14,018 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:51:14,020 INFO L158 Benchmark]: Toolchain (without parser) took 3921.82ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 80.0MB in the beginning and 132.3MB in the end (delta: -52.3MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2023-11-19 04:51:14,020 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:51:14,021 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.45ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 63.1MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 04:51:14,022 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.52ms. Allocated memory is still 117.4MB. Free memory was 63.1MB in the beginning and 55.2MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 04:51:14,023 INFO L158 Benchmark]: Boogie Preprocessor took 78.16ms. Allocated memory is still 117.4MB. Free memory was 55.2MB in the beginning and 52.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:51:14,024 INFO L158 Benchmark]: RCFGBuilder took 1694.03ms. Allocated memory was 117.4MB in the beginning and 146.8MB in the end (delta: 29.4MB). Free memory was 52.0MB in the beginning and 83.0MB in the end (delta: -31.0MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2023-11-19 04:51:14,025 INFO L158 Benchmark]: TraceAbstraction took 1574.03ms. Allocated memory was 146.8MB in the beginning and 184.5MB in the end (delta: 37.7MB). Free memory was 83.0MB in the beginning and 132.3MB in the end (delta: -49.3MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-19 04:51:14,025 INFO L158 Benchmark]: Witness Printer took 5.57ms. Allocated memory is still 184.5MB. Free memory is still 132.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:51:14,029 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 444.45ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 63.1MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.52ms. Allocated memory is still 117.4MB. Free memory was 63.1MB in the beginning and 55.2MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.16ms. Allocated memory is still 117.4MB. Free memory was 55.2MB in the beginning and 52.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1694.03ms. Allocated memory was 117.4MB in the beginning and 146.8MB in the end (delta: 29.4MB). Free memory was 52.0MB in the beginning and 83.0MB in the end (delta: -31.0MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1574.03ms. Allocated memory was 146.8MB in the beginning and 184.5MB in the end (delta: 37.7MB). Free memory was 83.0MB in the beginning and 132.3MB in the end (delta: -49.3MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 5.57ms. Allocated memory is still 184.5MB. Free memory is still 132.3MB. 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 shiftRight at line 81, overapproximation of bitwiseOr at line 85, overapproximation of bitwiseAnd at line 120, overapproximation of someBinaryDOUBLEComparisonOperation at line 55. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 50; [L23] unsigned char var_1_5 = 200; [L24] unsigned char var_1_6 = 64; [L25] signed short int var_1_7 = -2; [L26] signed long int var_1_8 = 16; [L27] unsigned char var_1_11 = 1; [L28] signed char var_1_12 = 8; [L29] signed char var_1_13 = 0; [L30] signed char var_1_14 = 10; [L31] signed char var_1_15 = 8; [L32] unsigned char var_1_16 = 5; [L33] unsigned char var_1_17 = 100; [L34] unsigned char var_1_18 = 25; [L35] unsigned char var_1_19 = 0; [L36] signed short int var_1_20 = -128; [L37] signed short int var_1_21 = -8; [L38] double var_1_22 = 100000000000.35; [L39] double var_1_23 = 199.4; [L40] double var_1_24 = 63.5; [L41] signed short int var_1_25 = 1; [L42] unsigned char var_1_27 = 1; [L43] unsigned char var_1_28 = 0; [L44] signed short int var_1_29 = -8; [L45] signed long int last_1_var_1_8 = 16; [L46] unsigned char last_1_var_1_16 = 5; [L171] isInitial = 1 [L172] FCALL initially() [L173] int k_loop; [L174] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=0, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=200, var_1_6=64, var_1_7=-2, var_1_8=16] [L174] COND TRUE k_loop < 1 [L175] CALL updateLastVariables() [L163] last_1_var_1_8 = var_1_8 [L164] last_1_var_1_16 = var_1_16 [L175] RET updateLastVariables() [L176] CALL updateVariables() [L128] var_1_5 = __VERIFIER_nondet_uchar() [L129] CALL assume_abort_if_not(var_1_5 >= 190) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=0, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=64, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L129] RET assume_abort_if_not(var_1_5 >= 190) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=0, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=64, var_1_7=-2, var_1_8=16] [L130] CALL assume_abort_if_not(var_1_5 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=0, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=64, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L130] RET assume_abort_if_not(var_1_5 <= 254) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=0, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=64, var_1_7=-2, var_1_8=16] [L131] var_1_6 = __VERIFIER_nondet_uchar() [L132] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=0, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L132] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=0, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L133] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=0, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L133] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=0, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L134] var_1_13 = __VERIFIER_nondet_char() [L135] CALL assume_abort_if_not(var_1_13 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L135] RET assume_abort_if_not(var_1_13 >= -63) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L136] CALL assume_abort_if_not(var_1_13 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L136] RET assume_abort_if_not(var_1_13 <= 63) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=10, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L137] var_1_14 = __VERIFIER_nondet_char() [L138] CALL assume_abort_if_not(var_1_14 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L138] RET assume_abort_if_not(var_1_14 >= -63) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L139] CALL assume_abort_if_not(var_1_14 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L139] RET assume_abort_if_not(var_1_14 <= 63) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=8, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L140] var_1_15 = __VERIFIER_nondet_char() [L141] CALL assume_abort_if_not(var_1_15 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L141] RET assume_abort_if_not(var_1_15 >= -63) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L142] CALL assume_abort_if_not(var_1_15 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_15 <= 63) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=100, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L143] var_1_17 = __VERIFIER_nondet_uchar() [L144] CALL assume_abort_if_not(var_1_17 >= 95) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L144] RET assume_abort_if_not(var_1_17 >= 95) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L145] CALL assume_abort_if_not(var_1_17 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_17 <= 127) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=25, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L146] var_1_18 = __VERIFIER_nondet_uchar() [L147] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L147] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L148] CALL assume_abort_if_not(var_1_18 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not(var_1_18 <= 32) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L149] var_1_19 = __VERIFIER_nondet_uchar() [L150] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L150] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L151] CALL assume_abort_if_not(var_1_19 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not(var_1_19 <= 63) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2000000000007/20, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L152] var_1_22 = __VERIFIER_nondet_double() [L153] CALL assume_abort_if_not((var_1_22 >= -922337.2036854776000e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 9223372.036854776000e+12F && var_1_22 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L153] RET assume_abort_if_not((var_1_22 >= -922337.2036854776000e+13F && var_1_22 <= -1.0e-20F) || (var_1_22 <= 9223372.036854776000e+12F && var_1_22 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2, var_1_23=997/5, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L154] var_1_23 = __VERIFIER_nondet_double() [L155] CALL assume_abort_if_not((var_1_23 >= -922337.2036854776000e+13F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 9223372.036854776000e+12F && var_1_23 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2, var_1_23=3, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not((var_1_23 >= -922337.2036854776000e+13F && var_1_23 <= -1.0e-20F) || (var_1_23 <= 9223372.036854776000e+12F && var_1_23 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2, var_1_23=3, var_1_24=127/2, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L156] var_1_24 = __VERIFIER_nondet_double() [L157] CALL assume_abort_if_not((var_1_24 >= -922337.2036854776000e+13F && var_1_24 <= -1.0e-20F) || (var_1_24 <= 9223372.036854776000e+12F && var_1_24 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2, var_1_23=3, var_1_24=4, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not((var_1_24 >= -922337.2036854776000e+13F && var_1_24 <= -1.0e-20F) || (var_1_24 <= 9223372.036854776000e+12F && var_1_24 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2, var_1_23=3, var_1_24=4, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L158] var_1_28 = __VERIFIER_nondet_uchar() [L159] CALL assume_abort_if_not(var_1_28 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2, var_1_23=3, var_1_24=4, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not(var_1_28 >= 0) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2, var_1_23=3, var_1_24=4, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L160] CALL assume_abort_if_not(var_1_28 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2, var_1_23=3, var_1_24=4, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L20] COND FALSE !(!cond) [L160] RET assume_abort_if_not(var_1_28 <= 0) VAL [isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=8, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=5, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=50, var_1_20=-128, var_1_21=-8, var_1_22=2, var_1_23=3, var_1_24=4, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=16] [L176] RET updateVariables() [L177] CALL step() [L50] COND TRUE (last_1_var_1_8 + (last_1_var_1_16 + 4u)) != last_1_var_1_16 [L51] var_1_1 = ((var_1_5 - 2) - var_1_6) [L55] COND TRUE 100.5f < var_1_22 [L56] var_1_27 = (! var_1_28) [L58] COND TRUE var_1_27 || var_1_27 [L59] var_1_12 = (var_1_13 + ((((var_1_14) < (var_1_15)) ? (var_1_14) : (var_1_15)))) [L61] signed long int stepLocal_5 = 2; [L62] unsigned char stepLocal_4 = var_1_5; [L63] unsigned char stepLocal_3 = var_1_27; [L64] COND FALSE !(stepLocal_4 <= var_1_1) [L67] COND TRUE stepLocal_3 || var_1_27 [L68] COND TRUE stepLocal_5 < var_1_1 [L69] var_1_8 = var_1_6 [L73] COND FALSE !(! var_1_27) [L80] signed long int stepLocal_2 = ~ ((((var_1_1) < (var_1_1)) ? (var_1_1) : (var_1_1))); [L81] EXPR var_1_11 >> var_1_1 [L81] signed long int stepLocal_1 = var_1_11 >> var_1_1; [L82] unsigned char stepLocal_0 = var_1_1; [L83] COND TRUE var_1_5 >= stepLocal_2 [L84] COND FALSE !(var_1_1 <= stepLocal_1) [L94] COND TRUE (var_1_22 * -0.625) < (var_1_23 * var_1_24) [L95] var_1_21 = ((((var_1_13) < ((var_1_12 + (256 - var_1_8)))) ? (var_1_13) : ((var_1_12 + (256 - var_1_8))))) [L101] COND FALSE !(var_1_7 > var_1_5) [L106] COND TRUE \read(var_1_27) [L107] COND FALSE !(var_1_29 >= ((var_1_1 + var_1_19) - ((((var_1_1) > (var_1_8)) ? (var_1_1) : (var_1_8))))) [L117] COND TRUE var_1_15 > var_1_25 [L118] var_1_16 = (var_1_5 - ((var_1_17 - var_1_18) - var_1_19)) [L120] EXPR var_1_16 | var_1_1 [L120] EXPR (var_1_16 | var_1_1) & ((((var_1_12) < (var_1_18)) ? (var_1_12) : (var_1_18))) [L120] signed long int stepLocal_6 = (var_1_16 | var_1_1) & ((((var_1_12) < (var_1_18)) ? (var_1_12) : (var_1_18))); [L121] COND FALSE !(stepLocal_6 > (((((var_1_11 * var_1_6)) > (var_1_16)) ? ((var_1_11 * var_1_6)) : (var_1_16)))) [L124] var_1_20 = ((((((var_1_16) < 0 ) ? -(var_1_16) : (var_1_16))) - 10) + 16) [L177] RET step() [L178] CALL, EXPR property() [L167] EXPR (((last_1_var_1_8 + (last_1_var_1_16 + 4u)) != last_1_var_1_16) ? (var_1_1 == ((unsigned char) ((var_1_5 - 2) - var_1_6))) : (var_1_1 == ((unsigned char) var_1_6))) && ((var_1_5 >= (~ ((((var_1_1) < (var_1_1)) ? (var_1_1) : (var_1_1))))) ? ((var_1_1 <= (var_1_11 >> var_1_1)) ? ((var_1_1 > (var_1_1 ^ (var_1_5 + var_1_11))) ? (var_1_7 == ((signed short int) ((((var_1_1) < (var_1_6)) ? (var_1_1) : (var_1_6))))) : (var_1_7 == ((signed short int) var_1_1))) : 1) : (var_1_7 == ((signed short int) var_1_1))) [L167] EXPR (var_1_5 >= (~ ((((var_1_1) < (var_1_1)) ? (var_1_1) : (var_1_1))))) ? ((var_1_1 <= (var_1_11 >> var_1_1)) ? ((var_1_1 > (var_1_1 ^ (var_1_5 + var_1_11))) ? (var_1_7 == ((signed short int) ((((var_1_1) < (var_1_6)) ? (var_1_1) : (var_1_6))))) : (var_1_7 == ((signed short int) var_1_1))) : 1) : (var_1_7 == ((signed short int) var_1_1)) [L167] EXPR var_1_11 >> var_1_1 [L167] EXPR (var_1_1 <= (var_1_11 >> var_1_1)) ? ((var_1_1 > (var_1_1 ^ (var_1_5 + var_1_11))) ? (var_1_7 == ((signed short int) ((((var_1_1) < (var_1_6)) ? (var_1_1) : (var_1_6))))) : (var_1_7 == ((signed short int) var_1_1))) : 1 [L167] EXPR (var_1_5 >= (~ ((((var_1_1) < (var_1_1)) ? (var_1_1) : (var_1_1))))) ? ((var_1_1 <= (var_1_11 >> var_1_1)) ? ((var_1_1 > (var_1_1 ^ (var_1_5 + var_1_11))) ? (var_1_7 == ((signed short int) ((((var_1_1) < (var_1_6)) ? (var_1_1) : (var_1_6))))) : (var_1_7 == ((signed short int) var_1_1))) : 1) : (var_1_7 == ((signed short int) var_1_1)) [L167] EXPR (((last_1_var_1_8 + (last_1_var_1_16 + 4u)) != last_1_var_1_16) ? (var_1_1 == ((unsigned char) ((var_1_5 - 2) - var_1_6))) : (var_1_1 == ((unsigned char) var_1_6))) && ((var_1_5 >= (~ ((((var_1_1) < (var_1_1)) ? (var_1_1) : (var_1_1))))) ? ((var_1_1 <= (var_1_11 >> var_1_1)) ? ((var_1_1 > (var_1_1 ^ (var_1_5 + var_1_11))) ? (var_1_7 == ((signed short int) ((((var_1_1) < (var_1_6)) ? (var_1_1) : (var_1_6))))) : (var_1_7 == ((signed short int) var_1_1))) : 1) : (var_1_7 == ((signed short int) var_1_1))) [L167] EXPR ((((((((last_1_var_1_8 + (last_1_var_1_16 + 4u)) != last_1_var_1_16) ? (var_1_1 == ((unsigned char) ((var_1_5 - 2) - var_1_6))) : (var_1_1 == ((unsigned char) var_1_6))) && ((var_1_5 >= (~ ((((var_1_1) < (var_1_1)) ? (var_1_1) : (var_1_1))))) ? ((var_1_1 <= (var_1_11 >> var_1_1)) ? ((var_1_1 > (var_1_1 ^ (var_1_5 + var_1_11))) ? (var_1_7 == ((signed short int) ((((var_1_1) < (var_1_6)) ? (var_1_1) : (var_1_6))))) : (var_1_7 == ((signed short int) var_1_1))) : 1) : (var_1_7 == ((signed short int) var_1_1)))) && ((var_1_5 <= var_1_1) ? (var_1_8 == ((signed long int) (var_1_5 - var_1_6))) : ((var_1_27 || var_1_27) ? ((2 < var_1_1) ? (var_1_8 == ((signed long int) var_1_6)) : 1) : 1))) && ((! var_1_27) ? (((var_1_1 >= var_1_1) && var_1_27) ? (var_1_11 == ((unsigned char) ((((var_1_6) < (var_1_5)) ? (var_1_6) : (var_1_5))))) : (var_1_11 == ((unsigned char) var_1_6))) : 1)) && ((var_1_27 || var_1_27) ? (var_1_12 == ((signed char) (var_1_13 + ((((var_1_14) < (var_1_15)) ? (var_1_14) : (var_1_15)))))) : 1)) && ((var_1_15 > var_1_25) ? (var_1_16 == ((unsigned char) (var_1_5 - ((var_1_17 - var_1_18) - var_1_19)))) : 1)) && ((((var_1_16 | var_1_1) & ((((var_1_12) < (var_1_18)) ? (var_1_12) : (var_1_18)))) > (((((var_1_11 * var_1_6)) > (var_1_16)) ? ((var_1_11 * var_1_6)) : (var_1_16)))) ? (var_1_20 == ((signed short int) (var_1_5 - ((((var_1_11) > (1)) ? (var_1_11) : (1)))))) : (var_1_20 == ((signed short int) ((((((var_1_16) < 0 ) ? -(var_1_16) : (var_1_16))) - 10) + 16)))) [L167] EXPR var_1_16 | var_1_1 [L167] EXPR (var_1_16 | var_1_1) & ((((var_1_12) < (var_1_18)) ? (var_1_12) : (var_1_18))) [L167] EXPR ((((((((last_1_var_1_8 + (last_1_var_1_16 + 4u)) != last_1_var_1_16) ? (var_1_1 == ((unsigned char) ((var_1_5 - 2) - var_1_6))) : (var_1_1 == ((unsigned char) var_1_6))) && ((var_1_5 >= (~ ((((var_1_1) < (var_1_1)) ? (var_1_1) : (var_1_1))))) ? ((var_1_1 <= (var_1_11 >> var_1_1)) ? ((var_1_1 > (var_1_1 ^ (var_1_5 + var_1_11))) ? (var_1_7 == ((signed short int) ((((var_1_1) < (var_1_6)) ? (var_1_1) : (var_1_6))))) : (var_1_7 == ((signed short int) var_1_1))) : 1) : (var_1_7 == ((signed short int) var_1_1)))) && ((var_1_5 <= var_1_1) ? (var_1_8 == ((signed long int) (var_1_5 - var_1_6))) : ((var_1_27 || var_1_27) ? ((2 < var_1_1) ? (var_1_8 == ((signed long int) var_1_6)) : 1) : 1))) && ((! var_1_27) ? (((var_1_1 >= var_1_1) && var_1_27) ? (var_1_11 == ((unsigned char) ((((var_1_6) < (var_1_5)) ? (var_1_6) : (var_1_5))))) : (var_1_11 == ((unsigned char) var_1_6))) : 1)) && ((var_1_27 || var_1_27) ? (var_1_12 == ((signed char) (var_1_13 + ((((var_1_14) < (var_1_15)) ? (var_1_14) : (var_1_15)))))) : 1)) && ((var_1_15 > var_1_25) ? (var_1_16 == ((unsigned char) (var_1_5 - ((var_1_17 - var_1_18) - var_1_19)))) : 1)) && ((((var_1_16 | var_1_1) & ((((var_1_12) < (var_1_18)) ? (var_1_12) : (var_1_18)))) > (((((var_1_11 * var_1_6)) > (var_1_16)) ? ((var_1_11 * var_1_6)) : (var_1_16)))) ? (var_1_20 == ((signed short int) (var_1_5 - ((((var_1_11) > (1)) ? (var_1_11) : (1)))))) : (var_1_20 == ((signed short int) ((((((var_1_16) < 0 ) ? -(var_1_16) : (var_1_16))) - 10) + 16)))) [L167-L168] return ((((((((((((last_1_var_1_8 + (last_1_var_1_16 + 4u)) != last_1_var_1_16) ? (var_1_1 == ((unsigned char) ((var_1_5 - 2) - var_1_6))) : (var_1_1 == ((unsigned char) var_1_6))) && ((var_1_5 >= (~ ((((var_1_1) < (var_1_1)) ? (var_1_1) : (var_1_1))))) ? ((var_1_1 <= (var_1_11 >> var_1_1)) ? ((var_1_1 > (var_1_1 ^ (var_1_5 + var_1_11))) ? (var_1_7 == ((signed short int) ((((var_1_1) < (var_1_6)) ? (var_1_1) : (var_1_6))))) : (var_1_7 == ((signed short int) var_1_1))) : 1) : (var_1_7 == ((signed short int) var_1_1)))) && ((var_1_5 <= var_1_1) ? (var_1_8 == ((signed long int) (var_1_5 - var_1_6))) : ((var_1_27 || var_1_27) ? ((2 < var_1_1) ? (var_1_8 == ((signed long int) var_1_6)) : 1) : 1))) && ((! var_1_27) ? (((var_1_1 >= var_1_1) && var_1_27) ? (var_1_11 == ((unsigned char) ((((var_1_6) < (var_1_5)) ? (var_1_6) : (var_1_5))))) : (var_1_11 == ((unsigned char) var_1_6))) : 1)) && ((var_1_27 || var_1_27) ? (var_1_12 == ((signed char) (var_1_13 + ((((var_1_14) < (var_1_15)) ? (var_1_14) : (var_1_15)))))) : 1)) && ((var_1_15 > var_1_25) ? (var_1_16 == ((unsigned char) (var_1_5 - ((var_1_17 - var_1_18) - var_1_19)))) : 1)) && ((((var_1_16 | var_1_1) & ((((var_1_12) < (var_1_18)) ? (var_1_12) : (var_1_18)))) > (((((var_1_11 * var_1_6)) > (var_1_16)) ? ((var_1_11 * var_1_6)) : (var_1_16)))) ? (var_1_20 == ((signed short int) (var_1_5 - ((((var_1_11) > (1)) ? (var_1_11) : (1)))))) : (var_1_20 == ((signed short int) ((((((var_1_16) < 0 ) ? -(var_1_16) : (var_1_16))) - 10) + 16))))) && (((var_1_22 * -0.625) < (var_1_23 * var_1_24)) ? (var_1_21 == ((signed short int) ((((var_1_13) < ((var_1_12 + (256 - var_1_8)))) ? (var_1_13) : ((var_1_12 + (256 - var_1_8))))))) : (var_1_27 ? (var_1_21 == ((signed short int) (((((((((var_1_12 + -1)) > (var_1_17)) ? ((var_1_12 + -1)) : (var_1_17)))) > ((var_1_13 + var_1_6))) ? ((((((var_1_12 + -1)) > (var_1_17)) ? ((var_1_12 + -1)) : (var_1_17)))) : ((var_1_13 + var_1_6)))))) : 1))) && (var_1_27 ? ((var_1_29 >= ((var_1_1 + var_1_19) - ((((var_1_1) > (var_1_8)) ? (var_1_1) : (var_1_8))))) ? (var_1_27 ? (var_1_25 == ((signed short int) var_1_17)) : (var_1_25 == ((signed short int) var_1_18))) : 1) : (var_1_25 == ((signed short int) var_1_14)))) && ((100.5f < var_1_22) ? (var_1_27 == ((unsigned char) (! var_1_28))) : 1)) && ((var_1_7 > var_1_5) ? (((var_1_21 <= var_1_6) || (var_1_27 || var_1_27)) ? (var_1_29 == ((signed short int) var_1_17)) : 1) : 1) ; [L178] RET, EXPR property() [L178] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=99, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=95, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=94, var_1_20=101, var_1_21=36, var_1_22=2, var_1_23=3, var_1_24=4, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=94] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_16=5, last_1_var_1_8=16, var_1_11=1, var_1_12=99, var_1_13=36, var_1_14=63, var_1_15=63, var_1_16=95, var_1_17=97, var_1_18=2, var_1_19=0, var_1_1=94, var_1_20=101, var_1_21=36, var_1_22=2, var_1_23=3, var_1_24=4, var_1_25=1, var_1_27=1, var_1_28=0, var_1_29=-8, var_1_5=190, var_1_6=94, var_1_7=-2, var_1_8=94] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 1, TraceHistogramMax: 21, 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=42occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 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 [2023-11-19 04:51:14,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ --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 18f661507baa99a6860677d13bda352b5068a9ab896ed00822695643614eba74 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:51:16,936 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:51:17,083 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:51:17,092 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:51:17,092 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:51:17,140 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:51:17,141 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:51:17,141 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:51:17,142 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:51:17,147 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:51:17,148 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:51:17,148 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:51:17,149 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:51:17,150 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:51:17,151 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:51:17,151 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:51:17,152 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:51:17,153 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:51:17,153 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:51:17,155 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:51:17,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:51:17,156 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:51:17,156 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:51:17,157 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:51:17,157 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:51:17,157 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:51:17,158 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:51:17,158 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:51:17,159 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:51:17,159 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:51:17,160 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:51:17,161 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:51:17,161 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:51:17,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:51:17,162 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:51:17,162 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:51:17,162 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:51:17,163 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:51:17,163 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:51:17,164 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:51:17,164 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:51:17,165 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:51:17,165 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_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18f661507baa99a6860677d13bda352b5068a9ab896ed00822695643614eba74 [2023-11-19 04:51:17,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:51:17,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:51:17,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:51:17,643 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:51:17,644 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:51:17,646 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i [2023-11-19 04:51:20,759 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:51:21,037 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:51:21,038 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i [2023-11-19 04:51:21,067 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/data/27c6aceaa/ff0aaa6c66804747adaecdf52e6c64e3/FLAG7d23587a9 [2023-11-19 04:51:21,088 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/data/27c6aceaa/ff0aaa6c66804747adaecdf52e6c64e3 [2023-11-19 04:51:21,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:51:21,097 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:51:21,101 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:51:21,101 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:51:21,107 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:51:21,108 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:51:21" (1/1) ... [2023-11-19 04:51:21,109 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46527ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:21, skipping insertion in model container [2023-11-19 04:51:21,110 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:51:21" (1/1) ... [2023-11-19 04:51:21,171 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:51:21,398 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_73d95ec4-dfb3-4fef-9326-8495bd63478e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i[916,929] [2023-11-19 04:51:21,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:51:21,560 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:51:21,579 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_73d95ec4-dfb3-4fef-9326-8495bd63478e/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-59.i[916,929] [2023-11-19 04:51:21,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:51:21,696 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:51:21,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:21 WrapperNode [2023-11-19 04:51:21,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:51:21,698 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:51:21,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:51:21,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:51:21,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:21" (1/1) ... [2023-11-19 04:51:21,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:21" (1/1) ... [2023-11-19 04:51:21,785 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 170 [2023-11-19 04:51:21,788 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:51:21,789 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:51:21,789 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:51:21,790 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:51:21,798 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:21" (1/1) ... [2023-11-19 04:51:21,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:21" (1/1) ... [2023-11-19 04:51:21,811 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:21" (1/1) ... [2023-11-19 04:51:21,817 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:21" (1/1) ... [2023-11-19 04:51:21,850 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:21" (1/1) ... [2023-11-19 04:51:21,854 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:21" (1/1) ... [2023-11-19 04:51:21,857 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:21" (1/1) ... [2023-11-19 04:51:21,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:21" (1/1) ... [2023-11-19 04:51:21,865 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:51:21,866 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:51:21,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:51:21,867 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:51:21,868 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:21" (1/1) ... [2023-11-19 04:51:21,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:51:21,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:51:21,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:51:21,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:51:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:51:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:51:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:51:21,941 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:51:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:51:21,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:51:22,083 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:51:22,085 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:51:28,846 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:51:28,856 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:51:28,856 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:51:28,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:51:28 BoogieIcfgContainer [2023-11-19 04:51:28,862 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:51:28,865 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:51:28,865 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:51:28,869 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:51:28,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:51:21" (1/3) ... [2023-11-19 04:51:28,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9a5d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:51:28, skipping insertion in model container [2023-11-19 04:51:28,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:51:21" (2/3) ... [2023-11-19 04:51:28,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9a5d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:51:28, skipping insertion in model container [2023-11-19 04:51:28,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:51:28" (3/3) ... [2023-11-19 04:51:28,875 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-59.i [2023-11-19 04:51:28,898 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:51:28,898 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:51:28,967 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:51:28,976 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;@b6fd943, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:51:28,977 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:51:28,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 53 states have internal predecessors, (77), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-19 04:51:29,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-19 04:51:29,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:29,004 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:51:29,005 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:51:29,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:29,012 INFO L85 PathProgramCache]: Analyzing trace with hash 851716679, now seen corresponding path program 1 times [2023-11-19 04:51:29,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:51:29,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102065709] [2023-11-19 04:51:29,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:29,030 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 [2023-11-19 04:51:29,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:51:29,035 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:51:29,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:51:29,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:29,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:51:29,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:51:29,682 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2023-11-19 04:51:29,683 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:51:29,683 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:51:29,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102065709] [2023-11-19 04:51:29,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102065709] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:51:29,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:51:29,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:51:29,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936935420] [2023-11-19 04:51:29,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:51:29,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:51:29,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:51:29,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:51:29,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:51:29,727 INFO L87 Difference]: Start difference. First operand has 76 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 53 states have internal predecessors, (77), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-19 04:51:29,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:51:29,763 INFO L93 Difference]: Finished difference Result 149 states and 256 transitions. [2023-11-19 04:51:29,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:51:29,765 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 140 [2023-11-19 04:51:29,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:51:29,772 INFO L225 Difference]: With dead ends: 149 [2023-11-19 04:51:29,773 INFO L226 Difference]: Without dead ends: 72 [2023-11-19 04:51:29,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:51:29,781 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:51:29,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:51:29,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-19 04:51:29,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2023-11-19 04:51:29,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 49 states have internal predecessors, (70), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-19 04:51:29,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 112 transitions. [2023-11-19 04:51:29,840 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 112 transitions. Word has length 140 [2023-11-19 04:51:29,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:51:29,841 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 112 transitions. [2023-11-19 04:51:29,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-19 04:51:29,841 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 112 transitions. [2023-11-19 04:51:29,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-19 04:51:29,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:29,854 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:51:29,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:51:30,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:51:30,055 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:51:30,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:30,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1297321101, now seen corresponding path program 1 times [2023-11-19 04:51:30,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:51:30,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700500094] [2023-11-19 04:51:30,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:30,059 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 [2023-11-19 04:51:30,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:51:30,060 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:51:30,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:51:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:30,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 04:51:30,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:51:31,002 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-19 04:51:31,002 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:51:31,003 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:51:31,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700500094] [2023-11-19 04:51:31,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [700500094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:51:31,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:51:31,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:51:31,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049936788] [2023-11-19 04:51:31,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:51:31,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:51:31,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:51:31,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:51:31,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:51:31,009 INFO L87 Difference]: Start difference. First operand 72 states and 112 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-19 04:51:34,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:51:36,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 04:51:38,346 WARN L539 Checker$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 [] [2023-11-19 04:51:38,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:51:38,352 INFO L93 Difference]: Finished difference Result 148 states and 226 transitions. [2023-11-19 04:51:38,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 04:51:38,389 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 140 [2023-11-19 04:51:38,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:51:38,392 INFO L225 Difference]: With dead ends: 148 [2023-11-19 04:51:38,392 INFO L226 Difference]: Without dead ends: 79 [2023-11-19 04:51:38,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-11-19 04:51:38,396 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 123 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 88 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:51:38,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 168 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 138 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2023-11-19 04:51:38,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-19 04:51:38,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 75. [2023-11-19 04:51:38,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 51 states have internal predecessors, (64), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-19 04:51:38,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 106 transitions. [2023-11-19 04:51:38,420 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 106 transitions. Word has length 140 [2023-11-19 04:51:38,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:51:38,422 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 106 transitions. [2023-11-19 04:51:38,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-19 04:51:38,422 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 106 transitions. [2023-11-19 04:51:38,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-19 04:51:38,425 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:38,425 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:51:38,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:51:38,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:51:38,638 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:51:38,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:38,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1979887301, now seen corresponding path program 1 times [2023-11-19 04:51:38,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:51:38,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [610248205] [2023-11-19 04:51:38,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:38,640 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 [2023-11-19 04:51:38,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:51:38,642 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:51:38,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:51:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:39,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:51:39,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:51:39,242 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-19 04:51:39,243 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:51:39,244 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:51:39,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [610248205] [2023-11-19 04:51:39,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [610248205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:51:39,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:51:39,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:51:39,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483060024] [2023-11-19 04:51:39,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:51:39,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:51:39,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:51:39,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:51:39,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:51:39,256 INFO L87 Difference]: Start difference. First operand 75 states and 106 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-19 04:51:41,382 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 [0] [2023-11-19 04:51:41,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:51:41,387 INFO L93 Difference]: Finished difference Result 147 states and 209 transitions. [2023-11-19 04:51:41,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:51:41,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 141 [2023-11-19 04:51:41,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:51:41,429 INFO L225 Difference]: With dead ends: 147 [2023-11-19 04:51:41,430 INFO L226 Difference]: Without dead ends: 75 [2023-11-19 04:51:41,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:51:41,432 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 20 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:51:41,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 180 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2023-11-19 04:51:41,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-19 04:51:41,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-11-19 04:51:41,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 51 states have internal predecessors, (63), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-19 04:51:41,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 105 transitions. [2023-11-19 04:51:41,460 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 105 transitions. Word has length 141 [2023-11-19 04:51:41,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:51:41,461 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 105 transitions. [2023-11-19 04:51:41,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-19 04:51:41,462 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 105 transitions. [2023-11-19 04:51:41,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-19 04:51:41,467 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:51:41,468 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:51:41,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/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)] Forceful destruction successful, exit code 0 [2023-11-19 04:51:41,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:51:41,682 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:51:41,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:51:41,683 INFO L85 PathProgramCache]: Analyzing trace with hash 562577884, now seen corresponding path program 1 times [2023-11-19 04:51:41,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:51:41,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799001896] [2023-11-19 04:51:41,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:41,684 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 [2023-11-19 04:51:41,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:51:41,691 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:51:41,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 04:51:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:42,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 04:51:42,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:51:44,668 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 182 proven. 108 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2023-11-19 04:51:44,669 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:51:45,499 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:51:45,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799001896] [2023-11-19 04:51:45,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1799001896] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:51:45,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1213102932] [2023-11-19 04:51:45,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:51:45,500 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:51:45,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:51:45,507 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:51:45,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d95ec4-dfb3-4fef-9326-8495bd63478e/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-19 04:51:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:51:46,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 04:51:46,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:51:53,250 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 236 proven. 102 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2023-11-19 04:51:53,250 INFO L327 TraceCheckSpWp]: Computing backward predicates...