./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-44.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-44.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje --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 52bbdb7a41796c9d1c42151e2a189c74de125cfeae86983365ab22d3ff48a0ac --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:46:54,125 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:46:54,277 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:46:54,283 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:46:54,284 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:46:54,306 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:46:54,307 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:46:54,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:46:54,308 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:46:54,308 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:46:54,309 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:46:54,309 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:46:54,310 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:46:54,310 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:46:54,310 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:46:54,311 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:46:54,311 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:46:54,312 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:46:54,313 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:46:54,313 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:46:54,314 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:46:54,315 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:46:54,315 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:46:54,316 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:46:54,316 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:46:54,317 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:46:54,317 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:46:54,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:46:54,318 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:46:54,318 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:46:54,318 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:46:54,319 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:46:54,319 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:46:54,320 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:46:54,320 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:46:54,320 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:46:54,321 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:46:54,321 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:46:54,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:46:54,322 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:46:54,322 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:46:54,326 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:46:54,326 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:46:54,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:46:54,327 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:46:54,327 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:46:54,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:46:54,328 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_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52bbdb7a41796c9d1c42151e2a189c74de125cfeae86983365ab22d3ff48a0ac [2024-11-09 06:46:54,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:46:54,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:46:54,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:46:54,657 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:46:54,658 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:46:54,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-44.i Unable to find full path for "g++" [2024-11-09 06:46:56,824 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:46:57,073 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:46:57,074 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-44.i [2024-11-09 06:46:57,085 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/data/fea32efb4/de4bbef531c842059df1d6dd51520c56/FLAGdd948d150 [2024-11-09 06:46:57,108 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/data/fea32efb4/de4bbef531c842059df1d6dd51520c56 [2024-11-09 06:46:57,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:46:57,113 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:46:57,117 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:46:57,117 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:46:57,123 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:46:57,124 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:46:57" (1/1) ... [2024-11-09 06:46:57,126 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae06397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:57, skipping insertion in model container [2024-11-09 06:46:57,126 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:46:57" (1/1) ... [2024-11-09 06:46:57,163 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:46:57,433 WARN L250 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_9d0f18fc-8023-44cc-98b3-289b014d3bd8/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-44.i[915,928] [2024-11-09 06:46:57,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:46:57,503 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:46:57,515 WARN L250 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_9d0f18fc-8023-44cc-98b3-289b014d3bd8/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-44.i[915,928] [2024-11-09 06:46:57,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:46:57,565 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:46:57,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:57 WrapperNode [2024-11-09 06:46:57,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:46:57,567 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:46:57,567 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:46:57,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:46:57,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:57" (1/1) ... [2024-11-09 06:46:57,582 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:57" (1/1) ... [2024-11-09 06:46:57,621 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 135 [2024-11-09 06:46:57,622 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:46:57,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:46:57,622 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:46:57,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:46:57,634 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:57" (1/1) ... [2024-11-09 06:46:57,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:57" (1/1) ... [2024-11-09 06:46:57,638 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:57" (1/1) ... [2024-11-09 06:46:57,638 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:57" (1/1) ... [2024-11-09 06:46:57,646 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:57" (1/1) ... [2024-11-09 06:46:57,650 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:57" (1/1) ... [2024-11-09 06:46:57,653 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:57" (1/1) ... [2024-11-09 06:46:57,655 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:57" (1/1) ... [2024-11-09 06:46:57,660 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:46:57,661 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:46:57,661 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:46:57,661 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:46:57,662 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:57" (1/1) ... [2024-11-09 06:46:57,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:46:57,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:46:57,702 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:46:57,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:46:57,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:46:57,731 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:46:57,732 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:46:57,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:46:57,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:46:57,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:46:57,817 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:46:57,819 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:46:58,364 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-09 06:46:58,364 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:46:58,541 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:46:58,541 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:46:58,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:46:58 BoogieIcfgContainer [2024-11-09 06:46:58,542 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:46:58,546 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:46:58,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:46:58,550 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:46:58,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:46:57" (1/3) ... [2024-11-09 06:46:58,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2f7477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:46:58, skipping insertion in model container [2024-11-09 06:46:58,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:57" (2/3) ... [2024-11-09 06:46:58,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2f7477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:46:58, skipping insertion in model container [2024-11-09 06:46:58,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:46:58" (3/3) ... [2024-11-09 06:46:58,555 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-44.i [2024-11-09 06:46:58,579 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:46:58,579 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:46:58,665 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:46:58,676 INFO L333 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, 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;@5aed9fef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:46:58,676 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:46:58,681 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 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) [2024-11-09 06:46:58,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 06:46:58,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:58,694 INFO L215 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] [2024-11-09 06:46:58,695 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:46:58,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:58,703 INFO L85 PathProgramCache]: Analyzing trace with hash 572502074, now seen corresponding path program 1 times [2024-11-09 06:46:58,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:46:58,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090081395] [2024-11-09 06:46:58,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:58,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:46:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:46:59,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1543279715] [2024-11-09 06:46:59,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:59,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:46:59,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:46:59,175 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:46:59,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:46:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:46:59,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:46:59,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:46:59,744 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:46:59,747 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:46:59,748 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:46:59,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 06:46:59,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 06:46:59,955 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:47:00,021 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:47:00,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:47:00 BoogieIcfgContainer [2024-11-09 06:47:00,025 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:47:00,025 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:47:00,026 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:47:00,026 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:47:00,026 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:46:58" (3/4) ... [2024-11-09 06:47:00,033 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:47:00,034 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:47:00,035 INFO L158 Benchmark]: Toolchain (without parser) took 2922.08ms. Allocated memory is still 146.8MB. Free memory was 106.2MB in the beginning and 98.8MB in the end (delta: 7.5MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2024-11-09 06:47:00,036 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 104.9MB. Free memory was 73.8MB in the beginning and 73.7MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:47:00,037 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.26ms. Allocated memory is still 146.8MB. Free memory was 106.2MB in the beginning and 108.9MB in the end (delta: -2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:47:00,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.06ms. Allocated memory is still 146.8MB. Free memory was 108.9MB in the beginning and 105.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:47:00,039 INFO L158 Benchmark]: Boogie Preprocessor took 37.63ms. Allocated memory is still 146.8MB. Free memory was 105.5MB in the beginning and 103.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:47:00,044 INFO L158 Benchmark]: RCFGBuilder took 881.71ms. Allocated memory is still 146.8MB. Free memory was 103.4MB in the beginning and 68.6MB in the end (delta: 34.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-09 06:47:00,044 INFO L158 Benchmark]: TraceAbstraction took 1479.15ms. Allocated memory is still 146.8MB. Free memory was 67.8MB in the beginning and 99.7MB in the end (delta: -31.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:47:00,045 INFO L158 Benchmark]: Witness Printer took 8.89ms. Allocated memory is still 146.8MB. Free memory is still 98.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:47:00,049 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 104.9MB. Free memory was 73.8MB in the beginning and 73.7MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 449.26ms. Allocated memory is still 146.8MB. Free memory was 106.2MB in the beginning and 108.9MB in the end (delta: -2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.06ms. Allocated memory is still 146.8MB. Free memory was 108.9MB in the beginning and 105.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.63ms. Allocated memory is still 146.8MB. Free memory was 105.5MB in the beginning and 103.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 881.71ms. Allocated memory is still 146.8MB. Free memory was 103.4MB in the beginning and 68.6MB in the end (delta: 34.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1479.15ms. Allocated memory is still 146.8MB. Free memory was 67.8MB in the beginning and 99.7MB in the end (delta: -31.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.89ms. Allocated memory is still 146.8MB. Free memory is still 98.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftRight at line 54. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 32; [L23] signed char var_1_5 = -1; [L24] signed char var_1_6 = 50; [L25] unsigned char var_1_7 = 50; [L26] unsigned char var_1_8 = 10; [L27] unsigned char var_1_9 = 128; [L28] unsigned char var_1_10 = 32; [L29] unsigned char var_1_11 = 0; [L30] signed char var_1_12 = 8; [L31] unsigned char var_1_13 = 1; [L32] signed char var_1_14 = 64; [L33] signed char var_1_15 = 16; [L34] signed char var_1_16 = 16; [L35] unsigned long int var_1_17 = 4; [L101] isInitial = 1 [L102] FCALL initially() [L103] COND TRUE 1 [L104] FCALL updateLastVariables() [L105] CALL updateVariables() [L62] var_1_5 = __VERIFIER_nondet_char() [L63] CALL assume_abort_if_not(var_1_5 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=50, var_1_7=50, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_5 >= -1) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=50, var_1_7=50, var_1_8=10, var_1_9=128] [L64] CALL assume_abort_if_not(var_1_5 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=50, var_1_7=50, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_5 <= 127) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=50, var_1_7=50, var_1_8=10, var_1_9=128] [L65] var_1_6 = __VERIFIER_nondet_char() [L66] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=50, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=50, var_1_8=10, var_1_9=128] [L67] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=50, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=50, var_1_8=10, var_1_9=128] [L68] var_1_7 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_8=10, var_1_9=128] [L70] CALL assume_abort_if_not(var_1_7 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_7 <= 255) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_8=10, var_1_9=128] [L71] CALL assume_abort_if_not(var_1_7 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_7 != 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=128] [L72] var_1_9 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_9 >= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_9 >= 127) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L74] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L75] var_1_10 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L77] CALL assume_abort_if_not(var_1_10 <= 64) VAL [\old(cond)=1, isInitial=1, var_1_10=320, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_10 <= 64) VAL [isInitial=1, var_1_10=320, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L78] var_1_11 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=320, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=320, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L80] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=320, var_1_11=319, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, var_1_10=320, var_1_11=319, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L81] var_1_13 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=320, var_1_11=319, var_1_12=8, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10=320, var_1_11=319, var_1_12=8, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L83] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=320, var_1_11=319, var_1_12=8, var_1_13=0, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, var_1_10=320, var_1_11=319, var_1_12=8, var_1_13=0, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L84] var_1_14 = __VERIFIER_nondet_char() [L85] CALL assume_abort_if_not(var_1_14 >= 62) VAL [\old(cond)=1, isInitial=1, var_1_10=320, var_1_11=319, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_14 >= 62) VAL [isInitial=1, var_1_10=320, var_1_11=319, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L86] CALL assume_abort_if_not(var_1_14 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=320, var_1_11=319, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_14 <= 126) VAL [isInitial=1, var_1_10=320, var_1_11=319, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L87] var_1_15 = __VERIFIER_nondet_char() [L88] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=320, var_1_11=319, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=126, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=320, var_1_11=319, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=126, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L89] CALL assume_abort_if_not(var_1_15 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=320, var_1_11=319, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=126, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_15 <= 126) VAL [isInitial=1, var_1_10=320, var_1_11=319, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=126, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L90] var_1_16 = __VERIFIER_nondet_char() [L91] CALL assume_abort_if_not(var_1_16 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=320, var_1_11=319, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=126, var_1_16=33, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_16 >= -127) VAL [isInitial=1, var_1_10=320, var_1_11=319, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=126, var_1_16=33, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L92] CALL assume_abort_if_not(var_1_16 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=320, var_1_11=319, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=126, var_1_16=33, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_16 <= 126) VAL [isInitial=1, var_1_10=320, var_1_11=319, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=126, var_1_16=33, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=-384] [L105] RET updateVariables() [L106] CALL step() [L39] var_1_8 = (var_1_9 - (var_1_10 + var_1_11)) [L40] COND TRUE ! var_1_13 [L41] var_1_12 = ((((((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) > (var_1_16)) ? (((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) : (var_1_16))) [L45] signed long int stepLocal_1 = var_1_5 - var_1_6; [L46] signed char stepLocal_0 = var_1_5; [L47] COND TRUE var_1_12 > stepLocal_1 [L48] COND FALSE !((var_1_8 / var_1_7) <= stepLocal_0) [L54] EXPR var_1_1 >> var_1_11 [L54] signed long int stepLocal_2 = var_1_1 >> var_1_11; [L55] COND TRUE stepLocal_2 != ((var_1_1 * var_1_8) / ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)))) [L56] var_1_17 = var_1_11 [L106] RET step() [L107] CALL, EXPR property() [L97] EXPR ((((var_1_12 > (var_1_5 - var_1_6)) ? (((var_1_8 / var_1_7) <= var_1_5) ? (var_1_1 == ((signed long int) var_1_12)) : 1) : (var_1_1 == ((signed long int) var_1_7))) && (var_1_8 == ((unsigned char) (var_1_9 - (var_1_10 + var_1_11))))) && ((! var_1_13) ? (var_1_12 == ((signed char) ((((((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) > (var_1_16)) ? (((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) : (var_1_16))))) : (var_1_12 == ((signed char) 2)))) && (((var_1_1 >> var_1_11) != ((var_1_1 * var_1_8) / ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14))))) ? (var_1_17 == ((unsigned long int) var_1_11)) : (var_1_17 == ((unsigned long int) var_1_7))) [L97] EXPR var_1_1 >> var_1_11 [L97] EXPR ((((var_1_12 > (var_1_5 - var_1_6)) ? (((var_1_8 / var_1_7) <= var_1_5) ? (var_1_1 == ((signed long int) var_1_12)) : 1) : (var_1_1 == ((signed long int) var_1_7))) && (var_1_8 == ((unsigned char) (var_1_9 - (var_1_10 + var_1_11))))) && ((! var_1_13) ? (var_1_12 == ((signed char) ((((((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) > (var_1_16)) ? (((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) : (var_1_16))))) : (var_1_12 == ((signed char) 2)))) && (((var_1_1 >> var_1_11) != ((var_1_1 * var_1_8) / ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14))))) ? (var_1_17 == ((unsigned long int) var_1_11)) : (var_1_17 == ((unsigned long int) var_1_7))) [L97-L98] return ((((var_1_12 > (var_1_5 - var_1_6)) ? (((var_1_8 / var_1_7) <= var_1_5) ? (var_1_1 == ((signed long int) var_1_12)) : 1) : (var_1_1 == ((signed long int) var_1_7))) && (var_1_8 == ((unsigned char) (var_1_9 - (var_1_10 + var_1_11))))) && ((! var_1_13) ? (var_1_12 == ((signed char) ((((((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) > (var_1_16)) ? (((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) : (var_1_16))))) : (var_1_12 == ((signed char) 2)))) && (((var_1_1 >> var_1_11) != ((var_1_1 * var_1_8) / ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14))))) ? (var_1_17 == ((unsigned long int) var_1_11)) : (var_1_17 == ((unsigned long int) var_1_7))) ; [L107] RET, EXPR property() [L107] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=320, var_1_11=319, var_1_12=33, var_1_13=0, var_1_14=62, var_1_15=126, var_1_16=33, var_1_17=63, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=1, var_1_9=-384] [L19] reach_error() VAL [isInitial=1, var_1_10=320, var_1_11=319, var_1_12=33, var_1_13=0, var_1_14=62, var_1_15=126, var_1_16=33, var_1_17=63, var_1_1=32, var_1_5=-1, var_1_6=0, var_1_7=2, var_1_8=1, var_1_9=-384] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, 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=40occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 2 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 [2024-11-09 06:47:00,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-44.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje --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 52bbdb7a41796c9d1c42151e2a189c74de125cfeae86983365ab22d3ff48a0ac --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:47:02,726 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:47:02,833 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 06:47:02,842 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:47:02,842 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:47:02,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:47:02,883 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:47:02,884 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:47:02,885 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:47:02,885 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:47:02,886 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:47:02,886 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:47:02,887 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:47:02,888 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:47:02,888 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:47:02,888 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:47:02,889 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:47:02,890 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:47:02,890 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:47:02,890 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:47:02,891 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:47:02,894 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:47:02,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:47:02,895 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:47:02,895 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:47:02,895 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:47:02,896 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:47:02,896 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:47:02,896 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:47:02,897 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:47:02,897 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:47:02,897 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:47:02,898 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:47:02,898 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:47:02,899 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:47:02,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:47:02,899 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:47:02,900 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:47:02,900 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:47:02,900 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:47:02,900 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:47:02,903 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:47:02,903 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:47:02,903 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52bbdb7a41796c9d1c42151e2a189c74de125cfeae86983365ab22d3ff48a0ac [2024-11-09 06:47:03,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:47:03,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:47:03,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:47:03,331 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:47:03,331 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:47:03,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-44.i Unable to find full path for "g++" [2024-11-09 06:47:05,394 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:47:05,685 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:47:05,687 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-44.i [2024-11-09 06:47:05,701 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/data/a1899b3b9/2d0d1870db6e4f67bd45fe87b2ee3a98/FLAG9888a9bf9 [2024-11-09 06:47:05,718 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/data/a1899b3b9/2d0d1870db6e4f67bd45fe87b2ee3a98 [2024-11-09 06:47:05,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:47:05,723 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:47:05,725 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:47:05,725 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:47:05,732 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:47:05,733 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:47:05" (1/1) ... [2024-11-09 06:47:05,734 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@566d341c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:47:05, skipping insertion in model container [2024-11-09 06:47:05,734 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:47:05" (1/1) ... [2024-11-09 06:47:05,765 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:47:05,986 WARN L250 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_9d0f18fc-8023-44cc-98b3-289b014d3bd8/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-44.i[915,928] [2024-11-09 06:47:06,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:47:06,080 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:47:06,096 WARN L250 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_9d0f18fc-8023-44cc-98b3-289b014d3bd8/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-44.i[915,928] [2024-11-09 06:47:06,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:47:06,169 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:47:06,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:47:06 WrapperNode [2024-11-09 06:47:06,170 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:47:06,171 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:47:06,171 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:47:06,171 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:47:06,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:47:06" (1/1) ... [2024-11-09 06:47:06,197 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:47:06" (1/1) ... [2024-11-09 06:47:06,236 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 112 [2024-11-09 06:47:06,236 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:47:06,237 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:47:06,237 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:47:06,237 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:47:06,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:47:06" (1/1) ... [2024-11-09 06:47:06,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:47:06" (1/1) ... [2024-11-09 06:47:06,258 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:47:06" (1/1) ... [2024-11-09 06:47:06,262 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:47:06" (1/1) ... [2024-11-09 06:47:06,276 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:47:06" (1/1) ... [2024-11-09 06:47:06,280 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:47:06" (1/1) ... [2024-11-09 06:47:06,282 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:47:06" (1/1) ... [2024-11-09 06:47:06,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:47:06" (1/1) ... [2024-11-09 06:47:06,287 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:47:06,288 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:47:06,289 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:47:06,289 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:47:06,290 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:47:06" (1/1) ... [2024-11-09 06:47:06,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:47:06,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:47:06,333 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:47:06,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:47:06,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:47:06,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:47:06,375 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:47:06,375 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:47:06,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:47:06,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:47:06,503 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:47:06,506 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:47:07,026 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-09 06:47:07,027 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:47:07,051 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:47:07,052 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:47:07,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:47:07 BoogieIcfgContainer [2024-11-09 06:47:07,052 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:47:07,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:47:07,057 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:47:07,061 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:47:07,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:47:05" (1/3) ... [2024-11-09 06:47:07,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f79953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:47:07, skipping insertion in model container [2024-11-09 06:47:07,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:47:06" (2/3) ... [2024-11-09 06:47:07,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f79953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:47:07, skipping insertion in model container [2024-11-09 06:47:07,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:47:07" (3/3) ... [2024-11-09 06:47:07,067 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-44.i [2024-11-09 06:47:07,092 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:47:07,093 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:47:07,158 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:47:07,164 INFO L333 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, 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;@5af7f2a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:47:07,165 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:47:07,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 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) [2024-11-09 06:47:07,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 06:47:07,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:47:07,183 INFO L215 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] [2024-11-09 06:47:07,184 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:47:07,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:47:07,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1041624993, now seen corresponding path program 1 times [2024-11-09 06:47:07,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:47:07,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967029553] [2024-11-09 06:47:07,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:47:07,207 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 [2024-11-09 06:47:07,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:47:07,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:47:07,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:47:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:47:07,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 06:47:07,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:47:07,517 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2024-11-09 06:47:07,517 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:47:07,518 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:47:07,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967029553] [2024-11-09 06:47:07,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967029553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:47:07,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:47:07,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:47:07,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342266503] [2024-11-09 06:47:07,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:47:07,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:47:07,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:47:07,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:47:07,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:47:07,560 INFO L87 Difference]: Start difference. First operand has 56 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 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) [2024-11-09 06:47:07,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:47:07,595 INFO L93 Difference]: Finished difference Result 105 states and 181 transitions. [2024-11-09 06:47:07,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:47:07,598 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 [2024-11-09 06:47:07,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:47:07,607 INFO L225 Difference]: With dead ends: 105 [2024-11-09 06:47:07,607 INFO L226 Difference]: Without dead ends: 52 [2024-11-09 06:47:07,611 INFO L431 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 [2024-11-09 06:47:07,615 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:47:07,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:47:07,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-09 06:47:07,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-09 06:47:07,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 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) [2024-11-09 06:47:07,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 76 transitions. [2024-11-09 06:47:07,681 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 76 transitions. Word has length 129 [2024-11-09 06:47:07,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:47:07,682 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 76 transitions. [2024-11-09 06:47:07,683 INFO L472 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) [2024-11-09 06:47:07,683 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 76 transitions. [2024-11-09 06:47:07,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 06:47:07,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:47:07,689 INFO L215 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] [2024-11-09 06:47:07,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-09 06:47:07,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:47:07,890 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:47:07,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:47:07,891 INFO L85 PathProgramCache]: Analyzing trace with hash 118790239, now seen corresponding path program 1 times [2024-11-09 06:47:07,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:47:07,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466476724] [2024-11-09 06:47:07,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:47:07,893 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 [2024-11-09 06:47:07,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:47:07,897 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:47:07,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d0f18fc-8023-44cc-98b3-289b014d3bd8/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:47:09,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:47:09,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-09 06:47:09,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:48:43,733 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 528 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-09 06:48:43,734 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:58:34,992 WARN L286 SmtUtils]: Spent 1.39m on a formula simplification. DAG size of input: 171 DAG size of output: 137 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:59:47,518 WARN L286 SmtUtils]: Spent 18.60s on a formula simplification. DAG size of input: 127 DAG size of output: 105 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:00:28,981 WARN L286 SmtUtils]: Spent 9.04s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:00:59,833 WARN L286 SmtUtils]: Spent 8.42s on a formula simplification that was a NOOP. DAG size: 116 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:01:30,873 WARN L286 SmtUtils]: Spent 7.52s on a formula simplification that was a NOOP. DAG size: 85 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:01:32,215 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-09 07:01:32,216 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:01:32,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466476724] [2024-11-09 07:01:32,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1466476724] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 07:01:32,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:01:32,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [25] total 33 [2024-11-09 07:01:32,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887559000] [2024-11-09 07:01:32,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:32,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 07:01:32,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:01:32,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 07:01:32,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=874, Unknown=2, NotChecked=0, Total=1056 [2024-11-09 07:01:32,225 INFO L87 Difference]: Start difference. First operand 52 states and 76 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 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) [2024-11-09 07:01:33,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:01:39,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:01:49,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:01:52,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:01:59,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:02:07,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1]