./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E --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 57aa769afed4a061f728787b55a05b2a082848f9dc6ce06d34092eb1dbdd7a2a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:58:35,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:58:35,271 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 02:58:35,282 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:58:35,283 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:58:35,334 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:58:35,335 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:58:35,335 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:58:35,336 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:58:35,336 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:58:35,337 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:58:35,338 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:58:35,338 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:58:35,339 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 02:58:35,339 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:58:35,339 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:58:35,339 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 02:58:35,339 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 02:58:35,339 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:58:35,339 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 02:58:35,340 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 02:58:35,340 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 02:58:35,341 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:58:35,341 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:58:35,342 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 02:58:35,342 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 02:58:35,342 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 02:58:35,342 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:58:35,342 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:58:35,342 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:58:35,343 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:58:35,343 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:58:35,343 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 02:58:35,343 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:58:35,343 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:58:35,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:58:35,344 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:58:35,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:58:35,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:58:35,345 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:58:35,345 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:58:35,345 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:58:35,345 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 02:58:35,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 02:58:35,346 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:58:35,346 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:58:35,346 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 02:58:35,346 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E 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 -> 57aa769afed4a061f728787b55a05b2a082848f9dc6ce06d34092eb1dbdd7a2a [2024-11-14 02:58:35,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:58:35,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:58:35,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:58:35,761 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:58:35,761 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:58:35,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i Unable to find full path for "g++" [2024-11-14 02:58:38,068 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:58:38,465 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:58:38,466 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i [2024-11-14 02:58:38,504 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/data/bb6e9b1c6/c47298731fab4a23bd7f53c9bd7c89fc/FLAG27de9e054 [2024-11-14 02:58:38,528 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/data/bb6e9b1c6/c47298731fab4a23bd7f53c9bd7c89fc [2024-11-14 02:58:38,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:58:38,534 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:58:38,537 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:58:38,538 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:58:38,544 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:58:38,545 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:58:38" (1/1) ... [2024-11-14 02:58:38,546 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@173c5a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:38, skipping insertion in model container [2024-11-14 02:58:38,547 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:58:38" (1/1) ... [2024-11-14 02:58:38,576 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:58:38,797 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_8726618c-0f74-41d3-ae75-f7f3c69e0234/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i[915,928] [2024-11-14 02:58:38,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:58:38,869 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:58:38,882 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_8726618c-0f74-41d3-ae75-f7f3c69e0234/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i[915,928] [2024-11-14 02:58:38,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:58:38,968 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:58:38,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:38 WrapperNode [2024-11-14 02:58:38,971 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:58:38,972 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:58:38,972 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:58:38,973 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:58:38,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:38" (1/1) ... [2024-11-14 02:58:38,997 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:38" (1/1) ... [2024-11-14 02:58:39,037 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 120 [2024-11-14 02:58:39,041 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:58:39,042 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:58:39,042 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:58:39,043 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:58:39,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:38" (1/1) ... [2024-11-14 02:58:39,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:38" (1/1) ... [2024-11-14 02:58:39,062 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:38" (1/1) ... [2024-11-14 02:58:39,062 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:38" (1/1) ... [2024-11-14 02:58:39,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:38" (1/1) ... [2024-11-14 02:58:39,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:38" (1/1) ... [2024-11-14 02:58:39,074 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:38" (1/1) ... [2024-11-14 02:58:39,075 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:38" (1/1) ... [2024-11-14 02:58:39,078 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:58:39,079 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:58:39,079 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:58:39,079 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:58:39,080 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:38" (1/1) ... [2024-11-14 02:58:39,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:58:39,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:58:39,131 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:58:39,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:58:39,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:58:39,171 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 02:58:39,171 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 02:58:39,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 02:58:39,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:58:39,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:58:39,270 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:58:39,273 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:58:39,651 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-14 02:58:39,651 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:58:39,932 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:58:39,932 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 02:58:39,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:58:39 BoogieIcfgContainer [2024-11-14 02:58:39,933 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:58:39,937 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:58:39,938 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:58:39,945 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:58:39,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:58:38" (1/3) ... [2024-11-14 02:58:39,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11667e8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:58:39, skipping insertion in model container [2024-11-14 02:58:39,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:38" (2/3) ... [2024-11-14 02:58:39,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11667e8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:58:39, skipping insertion in model container [2024-11-14 02:58:39,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:58:39" (3/3) ... [2024-11-14 02:58:39,949 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-87.i [2024-11-14 02:58:39,972 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:58:39,974 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-87.i that has 2 procedures, 30 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 02:58:40,047 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:58:40,064 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;@585381f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:58:40,064 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 02:58:40,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 02:58:40,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-14 02:58:40,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:58:40,080 INFO L215 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:58:40,080 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:58:40,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:58:40,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1292190601, now seen corresponding path program 1 times [2024-11-14 02:58:40,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:58:40,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363231023] [2024-11-14 02:58:40,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:58:40,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:58:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 02:58:40,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [321811074] [2024-11-14 02:58:40,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:58:40,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:58:40,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:58:40,620 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:58:40,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 02:58:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 02:58:40,772 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 02:58:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 02:58:40,977 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 02:58:40,980 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 02:58:40,982 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 02:58:40,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-14 02:58:41,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 02:58:41,191 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 02:58:41,280 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 02:58:41,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 02:58:41 BoogieIcfgContainer [2024-11-14 02:58:41,291 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 02:58:41,292 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 02:58:41,295 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 02:58:41,296 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 02:58:41,296 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:58:39" (3/4) ... [2024-11-14 02:58:41,299 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 02:58:41,301 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 02:58:41,303 INFO L158 Benchmark]: Toolchain (without parser) took 2769.27ms. Allocated memory is still 117.4MB. Free memory was 93.9MB in the beginning and 60.3MB in the end (delta: 33.5MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2024-11-14 02:58:41,303 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 167.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:58:41,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.83ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 81.3MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 02:58:41,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.48ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 79.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:58:41,307 INFO L158 Benchmark]: Boogie Preprocessor took 35.71ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 78.5MB in the end (delta: 917.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 02:58:41,308 INFO L158 Benchmark]: RCFGBuilder took 853.94ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 45.0MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-14 02:58:41,308 INFO L158 Benchmark]: TraceAbstraction took 1354.10ms. Allocated memory is still 117.4MB. Free memory was 44.4MB in the beginning and 60.4MB in the end (delta: -16.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:58:41,309 INFO L158 Benchmark]: Witness Printer took 9.40ms. Allocated memory is still 117.4MB. Free memory was 60.4MB in the beginning and 60.3MB in the end (delta: 21.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 02:58:41,314 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 167.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 434.83ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 81.3MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.48ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 79.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.71ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 78.5MB in the end (delta: 917.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 853.94ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 45.0MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1354.10ms. Allocated memory is still 117.4MB. Free memory was 44.4MB in the beginning and 60.4MB in the end (delta: -16.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.40ms. Allocated memory is still 117.4MB. Free memory was 60.4MB in the beginning and 60.3MB in the end (delta: 21.0kB). 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 52, overapproximation of someBinaryFLOATComparisonOperation at line 83, overapproximation of someBinaryFLOATComparisonOperation at line 93. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 1; [L23] unsigned char var_1_2 = 0; [L24] unsigned long int var_1_3 = 3164414017; [L25] unsigned long int var_1_4 = 128; [L26] signed char var_1_5 = -128; [L27] signed char var_1_6 = 10; [L28] signed char var_1_7 = 50; [L29] float var_1_8 = 5.1; [L30] float var_1_9 = 63.75; [L31] signed char var_1_10 = 100; [L32] signed long int var_1_12 = 5; [L33] signed char last_1_var_1_10 = 100; [L97] isInitial = 1 [L98] FCALL initially() [L99] COND TRUE 1 [L100] CALL updateLastVariables() [L90] last_1_var_1_10 = var_1_10 [L100] RET updateLastVariables() [L101] CALL updateVariables() [L67] var_1_2 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L69] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L70] var_1_3 = __VERIFIER_nondet_ulong() [L71] CALL assume_abort_if_not(var_1_3 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_3 >= 2147483647) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L72] CALL assume_abort_if_not(var_1_3 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_3 <= 4294967294) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L73] var_1_4 = __VERIFIER_nondet_ulong() [L74] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L75] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L76] var_1_6 = __VERIFIER_nondet_char() [L77] CALL assume_abort_if_not(var_1_6 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-128, var_1_6=3, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_6 >= -126) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-128, var_1_6=3, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L78] CALL assume_abort_if_not(var_1_6 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-128, var_1_6=3, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_6 <= 126) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-128, var_1_6=3, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L79] var_1_7 = __VERIFIER_nondet_char() [L80] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-128, var_1_6=3, var_1_7=0, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-128, var_1_6=3, var_1_7=0, var_1_8=51/10, var_1_9=255/4] [L81] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-128, var_1_6=3, var_1_7=0, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-128, var_1_6=3, var_1_7=0, var_1_8=51/10, var_1_9=255/4] [L82] var_1_9 = __VERIFIER_nondet_float() [L83] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-128, var_1_6=3, var_1_7=0, var_1_8=51/10] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-128, var_1_6=3, var_1_7=0, var_1_8=51/10] [L84] var_1_12 = __VERIFIER_nondet_long() [L85] CALL assume_abort_if_not(var_1_12 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=2, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-128, var_1_6=3, var_1_7=0, var_1_8=51/10] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_12 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=2, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-128, var_1_6=3, var_1_7=0, var_1_8=51/10] [L86] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=2, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-128, var_1_6=3, var_1_7=0, var_1_8=51/10] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=2, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-128, var_1_6=3, var_1_7=0, var_1_8=51/10] [L87] CALL assume_abort_if_not(var_1_12 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=2, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-128, var_1_6=3, var_1_7=0, var_1_8=51/10] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_12 != 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=2, var_1_1=1, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-128, var_1_6=3, var_1_7=0, var_1_8=51/10] [L101] RET updateVariables() [L102] CALL step() [L37] COND TRUE \read(var_1_2) [L38] var_1_1 = ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))) [L40] signed long int stepLocal_1 = -8; [L41] unsigned long int stepLocal_0 = var_1_1; [L42] COND FALSE !(stepLocal_1 < var_1_4) [L49] var_1_5 = -2 [L51] unsigned long int stepLocal_3 = var_1_1; [L52] EXPR var_1_4 >> var_1_3 [L52] unsigned long int stepLocal_2 = var_1_4 >> var_1_3; [L53] COND FALSE !(var_1_6 >= stepLocal_2) [L58] COND FALSE !((var_1_1 + (var_1_6 / var_1_12)) < var_1_1) [L102] RET step() [L103] CALL, EXPR property() [L93] EXPR ((var_1_2 ? (var_1_1 == ((unsigned long int) ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))))) : 1) && ((-8 < var_1_4) ? ((var_1_4 != var_1_1) ? (var_1_5 == ((signed char) (((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))) - var_1_7))) : (var_1_5 == ((signed char) var_1_6))) : (var_1_5 == ((signed char) -2)))) && ((var_1_6 >= (var_1_4 >> var_1_3)) ? ((var_1_6 != var_1_1) ? (var_1_8 == ((float) var_1_9)) : 1) : 1) [L93] EXPR var_1_4 >> var_1_3 [L93] EXPR ((var_1_2 ? (var_1_1 == ((unsigned long int) ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))))) : 1) && ((-8 < var_1_4) ? ((var_1_4 != var_1_1) ? (var_1_5 == ((signed char) (((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))) - var_1_7))) : (var_1_5 == ((signed char) var_1_6))) : (var_1_5 == ((signed char) -2)))) && ((var_1_6 >= (var_1_4 >> var_1_3)) ? ((var_1_6 != var_1_1) ? (var_1_8 == ((float) var_1_9)) : 1) : 1) [L93-L94] return (((var_1_2 ? (var_1_1 == ((unsigned long int) ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))))) : 1) && ((-8 < var_1_4) ? ((var_1_4 != var_1_1) ? (var_1_5 == ((signed char) (((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))) - var_1_7))) : (var_1_5 == ((signed char) var_1_6))) : (var_1_5 == ((signed char) -2)))) && ((var_1_6 >= (var_1_4 >> var_1_3)) ? ((var_1_6 != var_1_1) ? (var_1_8 == ((float) var_1_9)) : 1) : 1)) && (((var_1_1 + (var_1_6 / var_1_12)) < var_1_1) ? ((var_1_7 >= last_1_var_1_10) ? (var_1_10 == ((signed char) -32)) : (var_1_10 == ((signed char) var_1_7))) : 1) ; [L103] RET, EXPR property() [L103] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=2, var_1_1=-2147483652, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-2, var_1_6=3, var_1_7=0, var_1_8=51/10, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=2, var_1_1=-2147483652, var_1_2=1, var_1_3=6442450943, var_1_4=8589934595, var_1_5=-2, var_1_6=3, var_1_7=0, var_1_8=51/10, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 14, 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=30occurred 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, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 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 [2024-11-14 02:58:41,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E --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 57aa769afed4a061f728787b55a05b2a082848f9dc6ce06d34092eb1dbdd7a2a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:58:44,604 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:58:44,770 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 02:58:44,777 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:58:44,777 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:58:44,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:58:44,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:58:44,802 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:58:44,802 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:58:44,802 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:58:44,802 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:58:44,803 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:58:44,803 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:58:44,803 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:58:44,803 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:58:44,803 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:58:44,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:58:44,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:58:44,804 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 02:58:44,804 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 02:58:44,804 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:58:44,804 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:58:44,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:58:44,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:58:44,804 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 02:58:44,805 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 02:58:44,805 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:58:44,805 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 02:58:44,805 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 02:58:44,805 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:58:44,805 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:58:44,806 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:58:44,806 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 02:58:44,806 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:58:44,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:58:44,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:58:44,806 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:58:44,806 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:58:44,807 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:58:44,807 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 02:58:44,807 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 02:58:44,807 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:58:44,807 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:58:44,807 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E 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 -> 57aa769afed4a061f728787b55a05b2a082848f9dc6ce06d34092eb1dbdd7a2a [2024-11-14 02:58:45,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:58:45,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:58:45,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:58:45,173 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:58:45,178 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:58:45,180 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i Unable to find full path for "g++" [2024-11-14 02:58:47,420 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:58:47,763 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:58:47,765 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i [2024-11-14 02:58:47,783 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/data/17ca6799a/912316fc5deb419aac425bee17a79b2a/FLAG390872e30 [2024-11-14 02:58:48,018 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/data/17ca6799a/912316fc5deb419aac425bee17a79b2a [2024-11-14 02:58:48,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:58:48,023 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:58:48,025 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:58:48,026 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:58:48,032 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:58:48,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:58:48" (1/1) ... [2024-11-14 02:58:48,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6216e868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:48, skipping insertion in model container [2024-11-14 02:58:48,036 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:58:48" (1/1) ... [2024-11-14 02:58:48,058 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:58:48,275 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_8726618c-0f74-41d3-ae75-f7f3c69e0234/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i[915,928] [2024-11-14 02:58:48,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:58:48,383 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:58:48,398 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_8726618c-0f74-41d3-ae75-f7f3c69e0234/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i[915,928] [2024-11-14 02:58:48,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:58:48,479 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:58:48,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:48 WrapperNode [2024-11-14 02:58:48,481 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:58:48,483 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:58:48,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:58:48,484 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:58:48,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:48" (1/1) ... [2024-11-14 02:58:48,519 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:48" (1/1) ... [2024-11-14 02:58:48,560 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 99 [2024-11-14 02:58:48,563 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:58:48,564 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:58:48,564 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:58:48,564 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:58:48,576 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:48" (1/1) ... [2024-11-14 02:58:48,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:48" (1/1) ... [2024-11-14 02:58:48,582 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:48" (1/1) ... [2024-11-14 02:58:48,583 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:48" (1/1) ... [2024-11-14 02:58:48,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:48" (1/1) ... [2024-11-14 02:58:48,608 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:48" (1/1) ... [2024-11-14 02:58:48,613 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:48" (1/1) ... [2024-11-14 02:58:48,615 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:48" (1/1) ... [2024-11-14 02:58:48,624 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:58:48,625 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:58:48,626 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:58:48,629 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:58:48,631 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:48" (1/1) ... [2024-11-14 02:58:48,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:58:48,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:58:48,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:58:48,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:58:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:58:48,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 02:58:48,726 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 02:58:48,726 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 02:58:48,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:58:48,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:58:48,857 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:58:48,860 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:58:49,382 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-14 02:58:49,383 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:58:49,402 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:58:49,403 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 02:58:49,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:58:49 BoogieIcfgContainer [2024-11-14 02:58:49,403 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:58:49,408 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:58:49,408 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:58:49,415 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:58:49,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:58:48" (1/3) ... [2024-11-14 02:58:49,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a55ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:58:49, skipping insertion in model container [2024-11-14 02:58:49,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:58:48" (2/3) ... [2024-11-14 02:58:49,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a55ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:58:49, skipping insertion in model container [2024-11-14 02:58:49,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:58:49" (3/3) ... [2024-11-14 02:58:49,419 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-87.i [2024-11-14 02:58:49,439 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:58:49,443 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-87.i that has 2 procedures, 49 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 02:58:49,521 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:58:49,536 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;@4ea88799, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:58:49,537 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 02:58:49,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 02:58:49,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-14 02:58:49,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:58:49,557 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:58:49,557 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:58:49,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:58:49,562 INFO L85 PathProgramCache]: Analyzing trace with hash 2003978763, now seen corresponding path program 1 times [2024-11-14 02:58:49,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:58:49,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1203930655] [2024-11-14 02:58:49,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:58:49,575 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 [2024-11-14 02:58:49,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:58:49,579 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 02:58:49,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 02:58:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:58:49,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 02:58:49,857 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:58:49,914 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-14 02:58:49,914 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:58:49,915 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 02:58:49,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1203930655] [2024-11-14 02:58:49,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1203930655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:58:49,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:58:49,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:58:49,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584643458] [2024-11-14 02:58:49,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:58:49,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 02:58:49,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 02:58:49,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 02:58:49,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 02:58:49,956 INFO L87 Difference]: Start difference. First operand has 49 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 02:58:49,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:58:49,988 INFO L93 Difference]: Finished difference Result 91 states and 152 transitions. [2024-11-14 02:58:49,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 02:58:49,990 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 92 [2024-11-14 02:58:49,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:58:49,996 INFO L225 Difference]: With dead ends: 91 [2024-11-14 02:58:49,996 INFO L226 Difference]: Without dead ends: 45 [2024-11-14 02:58:49,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 02:58:50,003 INFO L432 NwaCegarLoop]: 65 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, 65 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 [2024-11-14 02:58:50,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 02:58:50,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-14 02:58:50,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-14 02:58:50,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 02:58:50,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 65 transitions. [2024-11-14 02:58:50,049 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 65 transitions. Word has length 92 [2024-11-14 02:58:50,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:58:50,050 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 65 transitions. [2024-11-14 02:58:50,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 02:58:50,050 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2024-11-14 02:58:50,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-14 02:58:50,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:58:50,054 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:58:50,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 02:58:50,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 02:58:50,255 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:58:50,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:58:50,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1551977607, now seen corresponding path program 1 times [2024-11-14 02:58:50,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 02:58:50,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1221415610] [2024-11-14 02:58:50,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:58:50,257 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 [2024-11-14 02:58:50,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 02:58:50,260 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 02:58:50,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 02:58:50,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:58:50,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 02:58:50,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:58:51,527 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 186 proven. 54 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-14 02:58:51,527 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:58:51,670 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 02:58:51,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1221415610] [2024-11-14 02:58:51,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1221415610] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:58:51,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [796921050] [2024-11-14 02:58:51,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:58:51,671 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 02:58:51,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 02:58:51,673 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 02:58:51,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-14 02:58:52,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:58:52,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 02:58:52,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:58:53,005 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 186 proven. 54 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-14 02:58:53,006 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:58:53,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [796921050] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:58:53,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917667412] [2024-11-14 02:58:53,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:58:53,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:58:53,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:58:53,075 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:58:53,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 02:58:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:58:53,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 02:58:53,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:58:54,166 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 165 proven. 75 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-14 02:58:54,166 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:12:12,209 WARN L286 SmtUtils]: Spent 7.21s on a formula simplification. DAG size of input: 132 DAG size of output: 96 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:12:28,667 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ sign_extend 24) c_~var_1_5~0)) (.cse11 (= c_~var_1_4~0 c_~var_1_1~0))) (let ((.cse4 (bvlshr c_~var_1_4~0 c_~var_1_3~0)) (.cse8 (not .cse11)) (.cse14 (= c_~var_1_1~0 (bvadd (bvneg c_~var_1_4~0) c_~var_1_3~0))) (.cse9 (bvult (_ bv4294967288 32) c_~var_1_4~0)) (.cse18 (= (_ bv0 32) (bvadd (_ bv2 32) .cse2)))) (and (or (let ((.cse16 (forall ((~var_1_6~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 32))) (let ((.cse17 ((_ sign_extend 24) ~var_1_6~0))) (or (not (= c_~var_1_1~0 .cse17)) (bvult (bvadd (bvsdiv .cse17 ~var_1_12~0) c_~var_1_1~0) c_~var_1_1~0) (bvuge .cse17 |c_ULTIMATE.start_step_~stepLocal_2~0#1|)))))) (let ((.cse6 (or .cse14 .cse16)) (.cse7 (or .cse9 .cse16)) (.cse10 (forall ((~var_1_6~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 32))) (let ((.cse15 ((_ sign_extend 24) ~var_1_6~0))) (or (= c_~var_1_1~0 .cse15) (bvult (bvadd (bvsdiv .cse15 ~var_1_12~0) c_~var_1_1~0) c_~var_1_1~0) (bvuge .cse15 |c_ULTIMATE.start_step_~stepLocal_2~0#1|)))))) (and (forall ((~var_1_6~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 32))) (let ((.cse0 ((_ sign_extend 24) ~var_1_6~0))) (or (= c_~var_1_1~0 .cse0) (bvult (bvadd (bvsdiv .cse0 ~var_1_12~0) c_~var_1_1~0) c_~var_1_1~0) (bvuge .cse0 |c_ULTIMATE.start_step_~stepLocal_2~0#1|) (forall ((~var_1_7~0 (_ BitVec 8)) (~last_1_var_1_10~0 (_ BitVec 8))) (let ((.cse1 ((_ sign_extend 24) ~var_1_7~0))) (or (not (bvsge .cse1 ((_ sign_extend 24) ~last_1_var_1_10~0))) (= .cse2 ((_ sign_extend 24) ((_ extract 7 0) (bvadd (bvneg .cse0) (bvneg .cse1))))))))))) (forall ((~var_1_6~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 32))) (let ((.cse3 ((_ sign_extend 24) ~var_1_6~0))) (or (not (bvuge .cse3 .cse4)) (= c_~var_1_1~0 .cse3) (bvult (bvadd (bvsdiv .cse3 ~var_1_12~0) c_~var_1_1~0) c_~var_1_1~0) (bvuge .cse3 |c_ULTIMATE.start_step_~stepLocal_2~0#1|)))) (or (and (forall ((~var_1_6~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 32))) (let ((.cse5 ((_ sign_extend 24) ~var_1_6~0))) (or (not (= c_~var_1_1~0 .cse5)) (bvult (bvadd (bvsdiv .cse5 ~var_1_12~0) c_~var_1_1~0) c_~var_1_1~0) (= .cse5 .cse2) (bvuge .cse5 |c_ULTIMATE.start_step_~stepLocal_2~0#1|)))) .cse6 .cse7) .cse8) (or .cse9 .cse10) (or .cse11 (and (forall ((~var_1_6~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 32))) (let ((.cse12 ((_ sign_extend 24) ~var_1_6~0))) (or (not (= c_~var_1_1~0 .cse12)) (bvult (bvadd (bvsdiv .cse12 ~var_1_12~0) c_~var_1_1~0) c_~var_1_1~0) (bvuge .cse12 |c_ULTIMATE.start_step_~stepLocal_2~0#1|) (forall ((~var_1_7~0 (_ BitVec 8)) (~last_1_var_1_10~0 (_ BitVec 8))) (let ((.cse13 ((_ sign_extend 24) ~var_1_7~0))) (or (not (bvsge .cse13 ((_ sign_extend 24) ~last_1_var_1_10~0))) (= .cse2 ((_ sign_extend 24) ((_ extract 7 0) (bvadd (bvneg .cse12) (bvneg .cse13))))))))))) .cse6 .cse7)) (or .cse14 .cse10)))) .cse18) (or (and (forall ((~var_1_6~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 32))) (let ((.cse19 ((_ sign_extend 24) ~var_1_6~0))) (or (bvslt .cse19 (_ bv0 32)) (= c_~var_1_1~0 .cse19) (bvult (bvadd (bvsdiv .cse19 ~var_1_12~0) c_~var_1_1~0) c_~var_1_1~0) (bvuge .cse19 |c_ULTIMATE.start_step_~stepLocal_2~0#1|)))) (forall ((~var_1_6~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 32))) (let ((.cse20 ((_ sign_extend 24) ~var_1_6~0))) (or (= c_~var_1_1~0 .cse20) (bvult (bvadd (bvsdiv .cse20 ~var_1_12~0) c_~var_1_1~0) c_~var_1_1~0) (bvuge .cse20 |c_ULTIMATE.start_step_~stepLocal_2~0#1|) (forall ((~var_1_7~0 (_ BitVec 8)) (~last_1_var_1_10~0 (_ BitVec 8))) (let ((.cse21 ((_ sign_extend 24) ~var_1_7~0))) (or (bvsge .cse21 ((_ sign_extend 24) ~last_1_var_1_10~0)) (= .cse2 ((_ sign_extend 24) ((_ extract 7 0) (bvadd (bvneg .cse20) (bvneg .cse21))))))))))) (forall ((~var_1_6~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 32))) (let ((.cse22 ((_ sign_extend 24) ~var_1_6~0))) (or (not (= c_~var_1_1~0 .cse22)) (bvslt .cse22 (_ bv0 32)) (bvult (bvadd (bvsdiv .cse22 ~var_1_12~0) c_~var_1_1~0) c_~var_1_1~0) (bvuge .cse22 |c_ULTIMATE.start_step_~stepLocal_2~0#1|)))) (forall ((~var_1_6~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 32))) (let ((.cse23 ((_ sign_extend 24) ~var_1_6~0))) (or (= c_~var_1_1~0 .cse23) (bvult (bvadd (bvsdiv .cse23 ~var_1_12~0) c_~var_1_1~0) c_~var_1_1~0) (= .cse2 ((_ sign_extend 24) ((_ extract 7 0) (bvadd (bvneg .cse23) (_ bv32 32))))) (bvuge .cse23 |c_ULTIMATE.start_step_~stepLocal_2~0#1|)))) (or .cse11 (and (forall ((~var_1_6~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 32))) (let ((.cse24 ((_ sign_extend 24) ~var_1_6~0))) (or (not (= c_~var_1_1~0 .cse24)) (not (= .cse24 .cse2)) (bvult (bvadd (bvsdiv .cse24 ~var_1_12~0) c_~var_1_1~0) c_~var_1_1~0) (= .cse2 ((_ sign_extend 24) ((_ extract 7 0) (bvadd (bvneg .cse24) (_ bv32 32))))) (bvuge .cse24 |c_ULTIMATE.start_step_~stepLocal_2~0#1|)))) (forall ((~var_1_6~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 32))) (let ((.cse25 ((_ sign_extend 24) ~var_1_6~0))) (or (not (= c_~var_1_1~0 .cse25)) (not (= .cse25 .cse2)) (bvult (bvadd (bvsdiv .cse25 ~var_1_12~0) c_~var_1_1~0) c_~var_1_1~0) (bvuge .cse25 |c_ULTIMATE.start_step_~stepLocal_2~0#1|) (forall ((~var_1_7~0 (_ BitVec 8)) (~last_1_var_1_10~0 (_ BitVec 8))) (let ((.cse26 ((_ sign_extend 24) ~var_1_7~0))) (or (bvsge .cse26 ((_ sign_extend 24) ~last_1_var_1_10~0)) (= .cse2 ((_ sign_extend 24) ((_ extract 7 0) (bvadd (bvneg .cse25) (bvneg .cse26))))))))))) (forall ((~var_1_6~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 32))) (let ((.cse27 ((_ sign_extend 24) ~var_1_6~0))) (or (not (= c_~var_1_1~0 .cse27)) (bvult (bvadd (bvsdiv .cse27 ~var_1_12~0) c_~var_1_1~0) c_~var_1_1~0) (= .cse27 .cse2) (bvuge .cse27 |c_ULTIMATE.start_step_~stepLocal_2~0#1|) (forall ((~var_1_7~0 (_ BitVec 8)) (~last_1_var_1_10~0 (_ BitVec 8))) (let ((.cse28 ((_ sign_extend 24) ~var_1_7~0))) (or (bvsge .cse28 ((_ sign_extend 24) ~last_1_var_1_10~0)) (= .cse2 ((_ sign_extend 24) ((_ extract 7 0) (bvadd (bvneg .cse27) (bvneg .cse28))))))))))) (forall ((~var_1_6~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 32))) (let ((.cse29 ((_ sign_extend 24) ~var_1_6~0))) (or (not (= c_~var_1_1~0 .cse29)) (bvult (bvadd (bvsdiv .cse29 ~var_1_12~0) c_~var_1_1~0) c_~var_1_1~0) (= .cse29 .cse2) (= .cse2 ((_ sign_extend 24) ((_ extract 7 0) (bvadd (bvneg .cse29) (_ bv32 32))))) (bvuge .cse29 |c_ULTIMATE.start_step_~stepLocal_2~0#1|))))))) .cse18) (or (let ((.cse34 (not .cse9))) (let ((.cse31 (and .cse14 .cse34)) (.cse32 (forall ((~var_1_6~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 32))) (let ((.cse37 ((_ sign_extend 24) ~var_1_6~0))) (or (bvult (bvadd (bvsdiv .cse37 ~var_1_12~0) c_~var_1_1~0) c_~var_1_1~0) (bvuge .cse37 |c_ULTIMATE.start_step_~stepLocal_2~0#1|) (not (bvslt .cse37 (_ bv0 32)))))))) (and (or (forall ((~var_1_6~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 32))) (let ((.cse30 ((_ sign_extend 24) ~var_1_6~0))) (or (bvslt .cse30 (_ bv0 32)) (bvult (bvadd (bvsdiv .cse30 ~var_1_12~0) c_~var_1_1~0) c_~var_1_1~0) (bvuge .cse30 |c_ULTIMATE.start_step_~stepLocal_2~0#1|)))) .cse31) (or .cse31 .cse11 .cse32) (forall ((~var_1_6~0 (_ BitVec 8))) (let ((.cse33 ((_ sign_extend 24) ~var_1_6~0))) (or (forall ((~var_1_12~0 (_ BitVec 32))) (bvult (bvadd (bvsdiv .cse33 ~var_1_12~0) c_~var_1_1~0) c_~var_1_1~0)) (not (bvuge .cse33 .cse4)) (= c_~var_1_1~0 .cse33) (bvuge .cse33 |c_ULTIMATE.start_step_~stepLocal_2~0#1|)))) (or (and (or .cse34 (forall ((~var_1_6~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 32))) (let ((.cse35 ((_ sign_extend 24) ~var_1_6~0))) (or (= (_ bv0 32) (bvadd (_ bv2 32) .cse35)) (bvult (bvadd (bvsdiv .cse35 ~var_1_12~0) c_~var_1_1~0) c_~var_1_1~0) (bvuge .cse35 |c_ULTIMATE.start_step_~stepLocal_2~0#1|) (not (bvslt .cse35 (_ bv0 32))))))) (or .cse14 .cse32) (forall ((~var_1_6~0 (_ BitVec 8))) (let ((.cse36 ((_ sign_extend 24) ~var_1_6~0))) (or (forall ((~var_1_12~0 (_ BitVec 32))) (or (bvult (bvadd (bvsdiv .cse36 ~var_1_12~0) c_~var_1_1~0) c_~var_1_1~0) (not (bvult (bvadd c_~var_1_1~0 (bvsdiv (_ bv4294967294 32) ~var_1_12~0)) c_~var_1_1~0)))) (bvuge .cse36 |c_ULTIMATE.start_step_~stepLocal_2~0#1|) (not (bvslt .cse36 (_ bv0 32))))))) .cse8)))) (not .cse18))))) is different from true [2024-11-14 03:12:57,598 WARN L286 SmtUtils]: Spent 11.87s on a formula simplification. DAG size of input: 107 DAG size of output: 102 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:13:10,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917667412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:13:10,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:13:10,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11] total 13 [2024-11-14 03:13:10,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535086272] [2024-11-14 03:13:10,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:13:10,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 03:13:10,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:13:10,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 03:13:10,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=323, Unknown=1, NotChecked=38, Total=462 [2024-11-14 03:13:10,723 INFO L87 Difference]: Start difference. First operand 45 states and 65 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 3 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-14 03:13:20,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:13:20,676 INFO L93 Difference]: Finished difference Result 146 states and 196 transitions. [2024-11-14 03:13:20,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 03:13:20,679 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 3 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 92 [2024-11-14 03:13:20,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:13:20,681 INFO L225 Difference]: With dead ends: 146 [2024-11-14 03:13:20,681 INFO L226 Difference]: Without dead ends: 104 [2024-11-14 03:13:20,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 56.1s TimeCoverageRelationStatistics Valid=264, Invalid=795, Unknown=1, NotChecked=62, Total=1122 [2024-11-14 03:13:20,684 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 116 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:13:20,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 194 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-14 03:13:20,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-14 03:13:20,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 73. [2024-11-14 03:13:20,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 52 states have (on average 1.25) internal successors, (65), 53 states have internal predecessors, (65), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 03:13:20,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 97 transitions. [2024-11-14 03:13:20,704 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 97 transitions. Word has length 92 [2024-11-14 03:13:20,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:13:20,705 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 97 transitions. [2024-11-14 03:13:20,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 3 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-14 03:13:20,706 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 97 transitions. [2024-11-14 03:13:20,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-14 03:13:20,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:13:20,709 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:13:20,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 03:13:20,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-14 03:13:21,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 03:13:21,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 03:13:21,312 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:13:21,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:13:21,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1925223959, now seen corresponding path program 1 times [2024-11-14 03:13:21,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:13:21,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837397319] [2024-11-14 03:13:21,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:13:21,314 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 [2024-11-14 03:13:21,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:13:21,319 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 03:13:21,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8726618c-0f74-41d3-ae75-f7f3c69e0234/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-14 03:13:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:13:21,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 03:13:21,539 INFO L278 TraceCheckSpWp]: Computing forward predicates...