./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-71.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-71.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9bdd014e884a70b0b39df741b298409f5ba90cb5237fddea23aa11bfd9a9946b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:22:41,465 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:22:41,580 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:22:41,585 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:22:41,585 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:22:41,638 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:22:41,638 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:22:41,639 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:22:41,641 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:22:41,648 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:22:41,648 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:22:41,650 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:22:41,650 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:22:41,652 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:22:41,653 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:22:41,653 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:22:41,654 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:22:41,654 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:22:41,654 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:22:41,655 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:22:41,657 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:22:41,658 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:22:41,659 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:22:41,660 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:22:41,660 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:22:41,661 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:22:41,661 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:22:41,662 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:22:41,662 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:22:41,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:22:41,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:22:41,664 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:22:41,665 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:22:41,665 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:22:41,665 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:22:41,665 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:22:41,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:22:41,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:22:41,666 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:22:41,667 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:22:41,667 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:22:41,667 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:22:41,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:22:41,668 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:22:41,669 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:22:41,669 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:22:41,669 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:22:41,669 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_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bdd014e884a70b0b39df741b298409f5ba90cb5237fddea23aa11bfd9a9946b [2023-11-23 21:22:41,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:22:42,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:22:42,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:22:42,028 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:22:42,029 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:22:42,030 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-71.i [2023-11-23 21:22:45,087 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:22:45,295 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:22:45,296 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-71.i [2023-11-23 21:22:45,307 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/data/b34d7891c/e287f5d550e74f09b7d5b2dbbef0a91c/FLAG4988cf594 [2023-11-23 21:22:45,338 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/data/b34d7891c/e287f5d550e74f09b7d5b2dbbef0a91c [2023-11-23 21:22:45,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:22:45,367 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:22:45,368 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:22:45,369 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:22:45,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:22:45,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:22:45" (1/1) ... [2023-11-23 21:22:45,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@304d4a3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:45, skipping insertion in model container [2023-11-23 21:22:45,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:22:45" (1/1) ... [2023-11-23 21:22:45,411 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:22:45,556 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_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-71.i[915,928] [2023-11-23 21:22:45,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:22:45,657 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:22:45,668 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_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-71.i[915,928] [2023-11-23 21:22:45,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:22:45,741 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:22:45,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:45 WrapperNode [2023-11-23 21:22:45,741 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:22:45,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:22:45,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:22:45,743 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:22:45,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:45" (1/1) ... [2023-11-23 21:22:45,762 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:45" (1/1) ... [2023-11-23 21:22:45,810 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 153 [2023-11-23 21:22:45,811 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:22:45,812 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:22:45,812 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:22:45,812 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:22:45,823 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:45" (1/1) ... [2023-11-23 21:22:45,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:45" (1/1) ... [2023-11-23 21:22:45,827 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:45" (1/1) ... [2023-11-23 21:22:45,828 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:45" (1/1) ... [2023-11-23 21:22:45,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:45" (1/1) ... [2023-11-23 21:22:45,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:45" (1/1) ... [2023-11-23 21:22:45,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:45" (1/1) ... [2023-11-23 21:22:45,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:45" (1/1) ... [2023-11-23 21:22:45,853 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:22:45,854 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:22:45,854 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:22:45,854 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:22:45,855 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:45" (1/1) ... [2023-11-23 21:22:45,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:22:45,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:22:45,908 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:22:45,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:22:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:22:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:22:45,950 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:22:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:22:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:22:45,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:22:46,032 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:22:46,034 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:22:46,422 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:22:46,631 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:22:46,632 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:22:46,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:22:46 BoogieIcfgContainer [2023-11-23 21:22:46,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:22:46,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:22:46,637 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:22:46,640 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:22:46,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:22:45" (1/3) ... [2023-11-23 21:22:46,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f22585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:22:46, skipping insertion in model container [2023-11-23 21:22:46,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:45" (2/3) ... [2023-11-23 21:22:46,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f22585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:22:46, skipping insertion in model container [2023-11-23 21:22:46,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:22:46" (3/3) ... [2023-11-23 21:22:46,643 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-71.i [2023-11-23 21:22:46,663 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:22:46,663 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:22:46,734 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:22:46,740 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;@57b7303c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:22:46,741 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:22:46,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 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) [2023-11-23 21:22:46,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-23 21:22:46,759 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:46,760 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] [2023-11-23 21:22:46,761 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:22:46,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:46,769 INFO L85 PathProgramCache]: Analyzing trace with hash 228464101, now seen corresponding path program 1 times [2023-11-23 21:22:46,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:46,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98347247] [2023-11-23 21:22:46,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:46,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:46,966 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:22:46,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1271726490] [2023-11-23 21:22:46,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:46,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:22:46,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:22:46,970 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:22:46,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:22:47,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:22:47,221 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:22:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:22:47,368 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:22:47,371 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:22:47,372 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:22:47,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 21:22:47,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:22:47,584 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:22:47,588 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:22:47,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:22:47 BoogieIcfgContainer [2023-11-23 21:22:47,737 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:22:47,738 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:22:47,738 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:22:47,738 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:22:47,738 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:22:46" (3/4) ... [2023-11-23 21:22:47,741 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:22:47,742 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:22:47,745 INFO L158 Benchmark]: Toolchain (without parser) took 2378.49ms. Allocated memory is still 161.5MB. Free memory was 133.0MB in the beginning and 93.1MB in the end (delta: 39.9MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2023-11-23 21:22:47,746 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 130.0MB. Free memory is still 100.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:22:47,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.26ms. Allocated memory is still 161.5MB. Free memory was 132.8MB in the beginning and 120.4MB in the end (delta: 12.4MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2023-11-23 21:22:47,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.85ms. Allocated memory is still 161.5MB. Free memory was 120.4MB in the beginning and 117.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:22:47,755 INFO L158 Benchmark]: Boogie Preprocessor took 41.27ms. Allocated memory is still 161.5MB. Free memory was 117.6MB in the beginning and 115.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:22:47,757 INFO L158 Benchmark]: RCFGBuilder took 779.89ms. Allocated memory is still 161.5MB. Free memory was 115.5MB in the beginning and 79.1MB in the end (delta: 36.4MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-23 21:22:47,757 INFO L158 Benchmark]: TraceAbstraction took 1100.50ms. Allocated memory is still 161.5MB. Free memory was 78.4MB in the beginning and 93.1MB in the end (delta: -14.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:22:47,758 INFO L158 Benchmark]: Witness Printer took 6.36ms. Allocated memory is still 161.5MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:22:47,767 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 130.0MB. Free memory is still 100.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.26ms. Allocated memory is still 161.5MB. Free memory was 132.8MB in the beginning and 120.4MB in the end (delta: 12.4MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.85ms. Allocated memory is still 161.5MB. Free memory was 120.4MB in the beginning and 117.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.27ms. Allocated memory is still 161.5MB. Free memory was 117.6MB in the beginning and 115.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 779.89ms. Allocated memory is still 161.5MB. Free memory was 115.5MB in the beginning and 79.1MB in the end (delta: 36.4MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1100.50ms. Allocated memory is still 161.5MB. Free memory was 78.4MB in the beginning and 93.1MB in the end (delta: -14.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.36ms. Allocated memory is still 161.5MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 73. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 32; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 1; [L25] signed char var_1_4 = -1; [L26] signed char var_1_5 = 4; [L27] unsigned short int var_1_9 = 35831; [L28] float var_1_10 = 1.875; [L29] float var_1_11 = 5.8; [L30] float var_1_12 = 2.375; [L31] float var_1_13 = 999999999999.75; [L32] signed short int var_1_14 = 32; [L33] signed short int var_1_15 = 25; [L34] signed short int var_1_16 = 23809; [L35] signed short int var_1_17 = 2; [L36] float var_1_18 = 499.25; [L37] signed long int var_1_19 = -4; [L38] unsigned short int var_1_20 = 10; [L39] unsigned short int var_1_21 = 16; [L40] signed char var_1_22 = -10; [L41] signed char var_1_23 = 25; [L42] float last_1_var_1_12 = 2.375; [L43] signed short int last_1_var_1_14 = 32; [L44] unsigned short int last_1_var_1_20 = 10; [L45] unsigned short int last_1_var_1_21 = 16; [L135] isInitial = 1 [L136] FCALL initially() [L137] int k_loop; [L138] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=1, var_1_4=-1, var_1_5=4, var_1_9=35831] [L138] COND TRUE k_loop < 1 [L139] CALL updateLastVariables() [L125] last_1_var_1_12 = var_1_12 [L126] last_1_var_1_14 = var_1_14 [L127] last_1_var_1_20 = var_1_20 [L128] last_1_var_1_21 = var_1_21 [L139] RET updateLastVariables() [L140] CALL updateVariables() [L91] var_1_2 = __VERIFIER_nondet_uchar() [L92] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_3=1, var_1_4=-1, var_1_5=4, var_1_9=35831] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_3=1, var_1_4=-1, var_1_5=4, var_1_9=35831] [L93] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=1, var_1_4=-1, var_1_5=4, var_1_9=35831] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=1, var_1_4=-1, var_1_5=4, var_1_9=35831] [L94] var_1_3 = __VERIFIER_nondet_uchar() [L95] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_4=-1, var_1_5=4, var_1_9=35831] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_4=-1, var_1_5=4, var_1_9=35831] [L96] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=-1, var_1_5=4, var_1_9=35831] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=-1, var_1_5=4, var_1_9=35831] [L97] var_1_4 = __VERIFIER_nondet_char() [L98] CALL assume_abort_if_not(var_1_4 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=4, var_1_9=35831] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_4 >= -1) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=4, var_1_9=35831] [L99] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=4, var_1_9=35831] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=4, var_1_9=35831] [L100] var_1_5 = __VERIFIER_nondet_char() [L101] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=35831] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=35831] [L102] CALL assume_abort_if_not(var_1_5 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=35831] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_5 <= 127) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=35831] [L103] var_1_9 = __VERIFIER_nondet_ushort() [L104] CALL assume_abort_if_not(var_1_9 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_9 >= 32767) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L105] CALL assume_abort_if_not(var_1_9 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_9 <= 65534) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_11=29/5, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L106] var_1_11 = __VERIFIER_nondet_float() [L107] CALL assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_13=3999999999999/4, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L108] var_1_13 = __VERIFIER_nondet_float() [L109] CALL assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L110] CALL assume_abort_if_not(var_1_13 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_13 != 0.0F) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=25, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L111] var_1_15 = __VERIFIER_nondet_short() [L112] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=0, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=0, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L113] CALL assume_abort_if_not(var_1_15 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=0, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(var_1_15 <= 16383) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=0, var_1_16=23809, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L114] var_1_16 = __VERIFIER_nondet_short() [L115] CALL assume_abort_if_not(var_1_16 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=0, var_1_16=16383, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(var_1_16 >= 16383) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=0, var_1_16=16383, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L116] CALL assume_abort_if_not(var_1_16 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=0, var_1_16=16383, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(var_1_16 <= 32766) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=0, var_1_16=16383, var_1_17=2, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L117] var_1_17 = __VERIFIER_nondet_short() [L118] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=0, var_1_16=16383, var_1_17=16383, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=0, var_1_16=16383, var_1_17=16383, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L119] CALL assume_abort_if_not(var_1_17 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=0, var_1_16=16383, var_1_17=16383, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L20] COND FALSE !(!cond) [L119] RET assume_abort_if_not(var_1_17 <= 16383) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=0, var_1_16=16383, var_1_17=16383, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=25, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L120] var_1_23 = __VERIFIER_nondet_char() [L121] CALL assume_abort_if_not(var_1_23 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=0, var_1_16=16383, var_1_17=16383, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=-127, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L20] COND FALSE !(!cond) [L121] RET assume_abort_if_not(var_1_23 >= -127) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=0, var_1_16=16383, var_1_17=16383, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=-127, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L122] CALL assume_abort_if_not(var_1_23 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=0, var_1_16=16383, var_1_17=16383, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=-127, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L20] COND FALSE !(!cond) [L122] RET assume_abort_if_not(var_1_23 <= 126) VAL [isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=15/8, var_1_12=19/8, var_1_14=32, var_1_15=0, var_1_16=16383, var_1_17=16383, var_1_18=1997/4, var_1_19=-4, var_1_1=32, var_1_20=10, var_1_21=16, var_1_22=-10, var_1_23=-127, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L140] RET updateVariables() [L141] CALL step() [L49] signed long int stepLocal_0 = var_1_4 - var_1_5; [L50] COND FALSE !(\read(var_1_2)) [L55] COND FALSE !(\read(var_1_3)) [L58] var_1_1 = var_1_5 [L61] unsigned short int stepLocal_2 = var_1_1; [L62] COND TRUE ! (var_1_5 < var_1_1) [L63] COND FALSE !(last_1_var_1_14 >= stepLocal_2) [L66] var_1_14 = ((var_1_5 - var_1_15) + var_1_4) [L71] var_1_10 = var_1_11 [L72] signed char stepLocal_1 = var_1_4; [L73] COND TRUE last_1_var_1_12 >= ((var_1_11 / var_1_13) / 31.9f) [L74] COND TRUE var_1_14 > stepLocal_1 [L75] var_1_12 = var_1_11 [L80] var_1_18 = ((((((((255.5f) > (var_1_11)) ? (255.5f) : (var_1_11)))) > (5.5f)) ? (((((255.5f) > (var_1_11)) ? (255.5f) : (var_1_11)))) : (5.5f))) [L81] var_1_20 = var_1_15 [L82] var_1_21 = var_1_5 [L83] var_1_22 = var_1_23 [L84] COND FALSE !(\read(var_1_3)) [L87] var_1_19 = var_1_5 [L141] RET step() [L142] CALL, EXPR property() [L131-L132] return ((((((((var_1_2 ? (((var_1_4 - var_1_5) > ((last_1_var_1_14 + last_1_var_1_20) * last_1_var_1_21)) ? (var_1_1 == ((unsigned short int) (var_1_9 - var_1_5))) : 1) : (var_1_3 ? (var_1_1 == ((unsigned short int) 32)) : (var_1_1 == ((unsigned short int) var_1_5)))) && (var_1_10 == ((float) var_1_11))) && ((last_1_var_1_12 >= ((var_1_11 / var_1_13) / 31.9f)) ? ((var_1_14 > var_1_4) ? (var_1_12 == ((float) var_1_11)) : (var_1_12 == ((float) var_1_11))) : 1)) && ((! (var_1_5 < var_1_1)) ? ((last_1_var_1_14 >= var_1_1) ? (var_1_14 == ((signed short int) (((((128) < (((((2) < (var_1_4)) ? (2) : (var_1_4))))) ? (128) : (((((2) < (var_1_4)) ? (2) : (var_1_4)))))) + var_1_5))) : (var_1_14 == ((signed short int) ((var_1_5 - var_1_15) + var_1_4)))) : (var_1_14 == ((signed short int) ((((((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5)))) < ((var_1_15 - (var_1_16 - var_1_17)))) ? (((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5)))) : ((var_1_15 - (var_1_16 - var_1_17))))))))) && (var_1_18 == ((float) ((((((((255.5f) > (var_1_11)) ? (255.5f) : (var_1_11)))) > (5.5f)) ? (((((255.5f) > (var_1_11)) ? (255.5f) : (var_1_11)))) : (5.5f)))))) && (var_1_3 ? (var_1_19 == ((signed long int) ((((var_1_17) > ((((((var_1_5) < (var_1_9)) ? (var_1_5) : (var_1_9))) + ((((var_1_16) > (var_1_21)) ? (var_1_16) : (var_1_21)))))) ? (var_1_17) : ((((((var_1_5) < (var_1_9)) ? (var_1_5) : (var_1_9))) + ((((var_1_16) > (var_1_21)) ? (var_1_16) : (var_1_21))))))))) : (var_1_19 == ((signed long int) var_1_5)))) && (var_1_20 == ((unsigned short int) var_1_15))) && (var_1_21 == ((unsigned short int) var_1_5))) && (var_1_22 == ((signed char) var_1_23)) ; [L142] RET, EXPR property() [L142] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=19/8, var_1_11=19/8, var_1_12=19/8, var_1_14=254, var_1_15=0, var_1_16=16383, var_1_17=16383, var_1_18=511/2, var_1_19=127, var_1_1=127, var_1_20=0, var_1_21=127, var_1_22=-127, var_1_23=-127, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=19/8, last_1_var_1_14=32, last_1_var_1_20=10, last_1_var_1_21=16, var_1_10=19/8, var_1_11=19/8, var_1_12=19/8, var_1_14=254, var_1_15=0, var_1_16=16383, var_1_17=16383, var_1_18=511/2, var_1_19=127, var_1_1=127, var_1_20=0, var_1_21=127, var_1_22=-127, var_1_23=-127, var_1_2=0, var_1_3=0, var_1_4=127, var_1_5=127, var_1_9=32767] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, 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=41occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:22:47,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-71.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9bdd014e884a70b0b39df741b298409f5ba90cb5237fddea23aa11bfd9a9946b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:22:50,526 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:22:50,655 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:22:50,662 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:22:50,663 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:22:50,695 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:22:50,696 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:22:50,697 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:22:50,698 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:22:50,699 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:22:50,699 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:22:50,700 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:22:50,700 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:22:50,701 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:22:50,702 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:22:50,702 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:22:50,703 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:22:50,704 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:22:50,705 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:22:50,705 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:22:50,706 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:22:50,707 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:22:50,707 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:22:50,708 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:22:50,709 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:22:50,709 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:22:50,710 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:22:50,710 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:22:50,711 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:22:50,712 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:22:50,712 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:22:50,713 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:22:50,714 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:22:50,714 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:22:50,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:22:50,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:22:50,726 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:22:50,727 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:22:50,727 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:22:50,728 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:22:50,728 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:22:50,729 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:22:50,730 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:22:50,730 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:22:50,730 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_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bdd014e884a70b0b39df741b298409f5ba90cb5237fddea23aa11bfd9a9946b [2023-11-23 21:22:51,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:22:51,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:22:51,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:22:51,147 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:22:51,148 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:22:51,149 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-71.i [2023-11-23 21:22:54,457 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:22:54,773 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:22:54,773 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-71.i [2023-11-23 21:22:54,784 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/data/a61b002f7/1b80f52a28194eb6951dfee9309ec35c/FLAG40b960b07 [2023-11-23 21:22:54,812 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/data/a61b002f7/1b80f52a28194eb6951dfee9309ec35c [2023-11-23 21:22:54,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:22:54,822 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:22:54,823 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:22:54,824 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:22:54,829 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:22:54,830 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:22:54" (1/1) ... [2023-11-23 21:22:54,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@438b52be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:54, skipping insertion in model container [2023-11-23 21:22:54,831 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:22:54" (1/1) ... [2023-11-23 21:22:54,862 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:22:55,023 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_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-71.i[915,928] [2023-11-23 21:22:55,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:22:55,169 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:22:55,188 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_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-1loop_file-71.i[915,928] [2023-11-23 21:22:55,259 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:22:55,281 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:22:55,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:55 WrapperNode [2023-11-23 21:22:55,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:22:55,284 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:22:55,284 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:22:55,284 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:22:55,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:55" (1/1) ... [2023-11-23 21:22:55,318 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:55" (1/1) ... [2023-11-23 21:22:55,369 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 147 [2023-11-23 21:22:55,371 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:22:55,372 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:22:55,373 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:22:55,373 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:22:55,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:55" (1/1) ... [2023-11-23 21:22:55,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:55" (1/1) ... [2023-11-23 21:22:55,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:55" (1/1) ... [2023-11-23 21:22:55,409 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:55" (1/1) ... [2023-11-23 21:22:55,423 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:55" (1/1) ... [2023-11-23 21:22:55,441 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:55" (1/1) ... [2023-11-23 21:22:55,445 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:55" (1/1) ... [2023-11-23 21:22:55,460 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:55" (1/1) ... [2023-11-23 21:22:55,465 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:22:55,466 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:22:55,466 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:22:55,466 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:22:55,467 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:55" (1/1) ... [2023-11-23 21:22:55,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:22:55,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:22:55,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:22:55,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:22:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:22:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:22:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:22:55,569 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:22:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:22:55,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:22:55,698 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:22:55,701 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:23:02,283 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:23:02,333 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:23:02,334 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:23:02,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:02 BoogieIcfgContainer [2023-11-23 21:23:02,334 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:23:02,337 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:23:02,337 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:23:02,340 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:23:02,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:22:54" (1/3) ... [2023-11-23 21:23:02,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac187c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:23:02, skipping insertion in model container [2023-11-23 21:23:02,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:22:55" (2/3) ... [2023-11-23 21:23:02,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac187c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:23:02, skipping insertion in model container [2023-11-23 21:23:02,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:02" (3/3) ... [2023-11-23 21:23:02,344 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-1loop_file-71.i [2023-11-23 21:23:02,362 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:23:02,362 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:23:02,410 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:23:02,416 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;@734e2e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:23:02,417 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:23:02,421 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 32 states have (on average 1.40625) internal successors, (45), 33 states have internal predecessors, (45), 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) [2023-11-23 21:23:02,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-23 21:23:02,436 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:02,437 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] [2023-11-23 21:23:02,438 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:02,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:02,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1453174576, now seen corresponding path program 1 times [2023-11-23 21:23:02,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:23:02,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515632733] [2023-11-23 21:23:02,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:02,459 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:23:02,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:23:02,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:23:02,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:23:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:03,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:23:03,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:23:03,188 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 436 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2023-11-23 21:23:03,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:23:03,189 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:23:03,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515632733] [2023-11-23 21:23:03,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515632733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:03,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:03,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:23:03,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989928324] [2023-11-23 21:23:03,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:03,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:23:03,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:23:03,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:23:03,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:23:03,229 INFO L87 Difference]: Start difference. First operand has 56 states, 32 states have (on average 1.40625) internal successors, (45), 33 states have internal predecessors, (45), 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 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2023-11-23 21:23:05,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:23:05,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:05,427 INFO L93 Difference]: Finished difference Result 111 states and 194 transitions. [2023-11-23 21:23:05,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:23:05,432 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 129 [2023-11-23 21:23:05,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:05,441 INFO L225 Difference]: With dead ends: 111 [2023-11-23 21:23:05,442 INFO L226 Difference]: Without dead ends: 54 [2023-11-23 21:23:05,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:23:05,450 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:05,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 21:23:05,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-23 21:23:05,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-23 21:23:05,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 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) [2023-11-23 21:23:05,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 82 transitions. [2023-11-23 21:23:05,531 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 82 transitions. Word has length 129 [2023-11-23 21:23:05,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:05,532 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 82 transitions. [2023-11-23 21:23:05,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2023-11-23 21:23:05,532 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 82 transitions. [2023-11-23 21:23:05,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-23 21:23:05,536 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:05,536 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] [2023-11-23 21:23:05,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-23 21:23:05,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:23:05,752 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:05,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:05,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1312253426, now seen corresponding path program 1 times [2023-11-23 21:23:05,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:23:05,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186086793] [2023-11-23 21:23:05,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:05,754 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:23:05,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:23:05,756 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:23:05,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:23:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:06,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:23:06,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:23:10,838 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-23 21:23:10,838 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:23:10,839 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:23:10,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186086793] [2023-11-23 21:23:10,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186086793] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:10,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:10,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:23:10,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417539039] [2023-11-23 21:23:10,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:10,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:23:10,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:23:10,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:23:10,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:23:10,844 INFO L87 Difference]: Start difference. First operand 54 states and 82 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-11-23 21:23:14,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:23:16,374 WARN L539 Checker$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 [0] [2023-11-23 21:23:18,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-23 21:23:20,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:23:21,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:21,787 INFO L93 Difference]: Finished difference Result 161 states and 245 transitions. [2023-11-23 21:23:21,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:23:21,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 129 [2023-11-23 21:23:21,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:21,793 INFO L225 Difference]: With dead ends: 161 [2023-11-23 21:23:21,793 INFO L226 Difference]: Without dead ends: 108 [2023-11-23 21:23:21,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:23:21,797 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 44 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 43 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:21,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 251 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 74 Invalid, 4 Unknown, 0 Unchecked, 10.7s Time] [2023-11-23 21:23:21,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-23 21:23:21,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 93. [2023-11-23 21:23:21,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 48 states have internal predecessors, (58), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-23 21:23:21,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 142 transitions. [2023-11-23 21:23:21,844 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 142 transitions. Word has length 129 [2023-11-23 21:23:21,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:21,845 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 142 transitions. [2023-11-23 21:23:21,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-11-23 21:23:21,846 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 142 transitions. [2023-11-23 21:23:21,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-23 21:23:21,849 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:21,850 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] [2023-11-23 21:23:21,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:23:22,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:23:22,062 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:22,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:22,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1705280436, now seen corresponding path program 1 times [2023-11-23 21:23:22,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:23:22,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [230550502] [2023-11-23 21:23:22,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:22,064 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:23:22,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:23:22,070 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:23:22,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e45b0-6a77-4da3-a716-1de5d8ba40f6/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 21:23:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:22,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-23 21:23:22,703 INFO L285 TraceCheckSpWp]: Computing forward predicates...