./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-38.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_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/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_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-38.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/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_989c39ad-5f17-43af-baee-cee54de291b0/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 8ecb8a86c5100f100392f33b5049e59f5466347bbc0a9c9e82d59cb07a715797 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:44:54,396 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:44:54,508 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:44:54,516 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:44:54,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:44:54,552 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:44:54,553 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:44:54,554 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:44:54,554 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:44:54,554 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:44:54,555 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:44:54,556 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:44:54,556 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:44:54,556 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:44:54,556 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:44:54,557 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:44:54,557 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:44:54,557 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:44:54,557 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:44:54,557 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:44:54,558 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:44:54,558 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:44:54,558 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:44:54,558 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:44:54,558 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:44:54,559 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:44:54,559 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:44:54,559 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:44:54,559 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:44:54,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:44:54,560 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:44:54,560 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:44:54,560 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:44:54,560 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:44:54,560 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:44:54,560 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:44:54,561 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:44:54,561 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:44:54,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:44:54,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:44:54,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:44:54,562 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:44:54,562 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:44:54,562 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:44:54,562 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:44:54,562 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:44:54,562 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:44:54,562 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_989c39ad-5f17-43af-baee-cee54de291b0/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 -> 8ecb8a86c5100f100392f33b5049e59f5466347bbc0a9c9e82d59cb07a715797 [2024-11-13 23:44:54,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:44:54,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:44:54,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:44:54,935 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:44:54,935 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:44:54,936 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-38.i Unable to find full path for "g++" [2024-11-13 23:44:57,112 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:44:57,449 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:44:57,450 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-38.i [2024-11-13 23:44:57,458 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/data/3b3e47c6f/5c4837ce59ee431c9d2cc94405a4dcbd/FLAG459585cc0 [2024-11-13 23:44:57,473 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/data/3b3e47c6f/5c4837ce59ee431c9d2cc94405a4dcbd [2024-11-13 23:44:57,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:44:57,477 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:44:57,479 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:44:57,479 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:44:57,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:44:57,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:44:57" (1/1) ... [2024-11-13 23:44:57,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2701926d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:57, skipping insertion in model container [2024-11-13 23:44:57,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:44:57" (1/1) ... [2024-11-13 23:44:57,503 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:44:57,670 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_989c39ad-5f17-43af-baee-cee54de291b0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-38.i[915,928] [2024-11-13 23:44:57,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:44:57,760 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:44:57,778 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_989c39ad-5f17-43af-baee-cee54de291b0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-38.i[915,928] [2024-11-13 23:44:57,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:44:57,861 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:44:57,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:57 WrapperNode [2024-11-13 23:44:57,863 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:44:57,864 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:44:57,865 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:44:57,865 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:44:57,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:57" (1/1) ... [2024-11-13 23:44:57,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:57" (1/1) ... [2024-11-13 23:44:57,944 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 115 [2024-11-13 23:44:57,944 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:44:57,946 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:44:57,946 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:44:57,946 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:44:57,955 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:57" (1/1) ... [2024-11-13 23:44:57,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:57" (1/1) ... [2024-11-13 23:44:57,958 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:57" (1/1) ... [2024-11-13 23:44:57,959 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:57" (1/1) ... [2024-11-13 23:44:57,967 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:57" (1/1) ... [2024-11-13 23:44:57,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:57" (1/1) ... [2024-11-13 23:44:57,973 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:57" (1/1) ... [2024-11-13 23:44:57,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:57" (1/1) ... [2024-11-13 23:44:57,978 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:44:57,979 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:44:57,980 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:44:57,980 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:44:57,981 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:57" (1/1) ... [2024-11-13 23:44:57,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:44:58,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:58,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:44:58,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:44:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:44:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 23:44:58,068 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 23:44:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:44:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:44:58,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:44:58,174 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:44:58,177 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:44:58,547 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-13 23:44:58,548 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:44:58,696 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:44:58,696 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:44:58,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:44:58 BoogieIcfgContainer [2024-11-13 23:44:58,697 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:44:58,700 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:44:58,701 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:44:58,709 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:44:58,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:44:57" (1/3) ... [2024-11-13 23:44:58,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16667fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:44:58, skipping insertion in model container [2024-11-13 23:44:58,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:57" (2/3) ... [2024-11-13 23:44:58,712 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16667fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:44:58, skipping insertion in model container [2024-11-13 23:44:58,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:44:58" (3/3) ... [2024-11-13 23:44:58,713 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-38.i [2024-11-13 23:44:58,735 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:44:58,737 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-38.i that has 2 procedures, 41 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:44:58,807 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:44:58,829 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;@2aa6fa17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:44:58,831 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:44:58,837 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 23:44:58,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-13 23:44:58,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:58,851 INFO L215 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:44:58,852 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:58,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:58,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1709818245, now seen corresponding path program 1 times [2024-11-13 23:44:58,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:58,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613830328] [2024-11-13 23:44:58,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:58,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:44:59,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:44:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:44:59,714 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-13 23:44:59,715 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 23:44:59,717 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 23:44:59,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:44:59,726 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-13 23:44:59,789 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 23:44:59,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 11:44:59 BoogieIcfgContainer [2024-11-13 23:44:59,793 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 23:44:59,793 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:44:59,793 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:44:59,794 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:44:59,794 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:44:58" (3/4) ... [2024-11-13 23:44:59,797 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:44:59,797 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:44:59,799 INFO L158 Benchmark]: Toolchain (without parser) took 2321.77ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 75.4MB in the end (delta: 25.6MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2024-11-13 23:44:59,800 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:44:59,800 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.78ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 88.2MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:44:59,801 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.22ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 85.6MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:44:59,801 INFO L158 Benchmark]: Boogie Preprocessor took 32.66ms. Allocated memory is still 142.6MB. Free memory was 85.3MB in the beginning and 84.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:44:59,801 INFO L158 Benchmark]: RCFGBuilder took 717.32ms. Allocated memory is still 142.6MB. Free memory was 84.1MB in the beginning and 60.5MB in the end (delta: 23.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:44:59,802 INFO L158 Benchmark]: TraceAbstraction took 1092.27ms. Allocated memory is still 142.6MB. Free memory was 60.2MB in the beginning and 75.4MB in the end (delta: -15.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:44:59,802 INFO L158 Benchmark]: Witness Printer took 4.50ms. Allocated memory is still 142.6MB. Free memory was 75.4MB in the beginning and 75.4MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:44:59,808 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.78ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 88.2MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.22ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 85.6MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.66ms. Allocated memory is still 142.6MB. Free memory was 85.3MB in the beginning and 84.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 717.32ms. Allocated memory is still 142.6MB. Free memory was 84.1MB in the beginning and 60.5MB in the end (delta: 23.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1092.27ms. Allocated memory is still 142.6MB. Free memory was 60.2MB in the beginning and 75.4MB in the end (delta: -15.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.50ms. Allocated memory is still 142.6MB. Free memory was 75.4MB in the beginning and 75.4MB in the end (delta: 36.9kB). 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 someBinaryArithmeticDOUBLEoperation at line 46, overapproximation of someBinaryDOUBLEComparisonOperation at line 94, overapproximation of someBinaryDOUBLEComparisonOperation at line 71, overapproximation of someBinaryDOUBLEComparisonOperation at line 75, overapproximation of someBinaryDOUBLEComparisonOperation at line 73, overapproximation of someBinaryDOUBLEComparisonOperation at line 77. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 0; [L23] unsigned short int var_1_2 = 56507; [L24] unsigned short int var_1_3 = 52902; [L25] unsigned short int var_1_4 = 8; [L26] unsigned long int var_1_5 = 16; [L27] unsigned long int var_1_6 = 1771558822; [L28] double var_1_7 = 7.25; [L29] double var_1_8 = 31.2; [L30] double var_1_9 = 32.71; [L31] double var_1_10 = 0.4; [L32] double var_1_11 = 7.75; [L33] unsigned short int var_1_12 = 32; [L34] unsigned char var_1_13 = 0; [L35] unsigned short int var_1_14 = 20114; [L36] unsigned short int var_1_15 = 32; [L37] unsigned short int var_1_16 = 16773; [L98] isInitial = 1 [L99] FCALL initially() [L100] COND TRUE 1 [L101] FCALL updateLastVariables() [L102] CALL updateVariables() [L58] var_1_2 = __VERIFIER_nondet_ushort() [L59] CALL assume_abort_if_not(var_1_2 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=52902, var_1_4=8, var_1_5=16, var_1_6=1771558822, var_1_7=29/4, var_1_8=156/5, var_1_9=3271/100] [L20] COND FALSE !(!cond) [L59] RET assume_abort_if_not(var_1_2 >= 32767) VAL [isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=52902, var_1_4=8, var_1_5=16, var_1_6=1771558822, var_1_7=29/4, var_1_8=156/5, var_1_9=3271/100] [L60] CALL assume_abort_if_not(var_1_2 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=52902, var_1_4=8, var_1_5=16, var_1_6=1771558822, var_1_7=29/4, var_1_8=156/5, var_1_9=3271/100] [L20] COND FALSE !(!cond) [L60] RET assume_abort_if_not(var_1_2 <= 65534) VAL [isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=52902, var_1_4=8, var_1_5=16, var_1_6=1771558822, var_1_7=29/4, var_1_8=156/5, var_1_9=3271/100] [L61] var_1_3 = __VERIFIER_nondet_ushort() [L62] CALL assume_abort_if_not(var_1_3 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=8, var_1_5=16, var_1_6=1771558822, var_1_7=29/4, var_1_8=156/5, var_1_9=3271/100] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_3 >= 32767) VAL [isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=8, var_1_5=16, var_1_6=1771558822, var_1_7=29/4, var_1_8=156/5, var_1_9=3271/100] [L63] CALL assume_abort_if_not(var_1_3 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=8, var_1_5=16, var_1_6=1771558822, var_1_7=29/4, var_1_8=156/5, var_1_9=3271/100] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_3 <= 65534) VAL [isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=8, var_1_5=16, var_1_6=1771558822, var_1_7=29/4, var_1_8=156/5, var_1_9=3271/100] [L64] var_1_4 = __VERIFIER_nondet_ushort() [L65] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_5=16, var_1_6=1771558822, var_1_7=29/4, var_1_8=156/5, var_1_9=3271/100] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_5=16, var_1_6=1771558822, var_1_7=29/4, var_1_8=156/5, var_1_9=3271/100] [L66] CALL assume_abort_if_not(var_1_4 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=1771558822, var_1_7=29/4, var_1_8=156/5, var_1_9=3271/100] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_4 <= 32767) VAL [isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=1771558822, var_1_7=29/4, var_1_8=156/5, var_1_9=3271/100] [L67] var_1_6 = __VERIFIER_nondet_ulong() [L68] CALL assume_abort_if_not(var_1_6 >= 1610612735) VAL [\old(cond)=1, isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4, var_1_8=156/5, var_1_9=3271/100] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_6 >= 1610612735) VAL [isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4, var_1_8=156/5, var_1_9=3271/100] [L69] CALL assume_abort_if_not(var_1_6 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4, var_1_8=156/5, var_1_9=3271/100] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_6 <= 2147483647) VAL [isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4, var_1_8=156/5, var_1_9=3271/100] [L70] var_1_8 = __VERIFIER_nondet_double() [L71] CALL assume_abort_if_not((var_1_8 >= -461168.6018427382800e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4, var_1_9=3271/100] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not((var_1_8 >= -461168.6018427382800e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4, var_1_9=3271/100] [L72] var_1_9 = __VERIFIER_nondet_double() [L73] CALL assume_abort_if_not((var_1_9 >= -230584.3009213691390e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 2305843.009213691390e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not((var_1_9 >= -230584.3009213691390e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 2305843.009213691390e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2/5, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L74] var_1_10 = __VERIFIER_nondet_double() [L75] CALL assume_abort_if_not((var_1_10 >= -115292.1504606845700e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 1152921.504606845700e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not((var_1_10 >= -115292.1504606845700e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 1152921.504606845700e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=31/4, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L76] var_1_11 = __VERIFIER_nondet_double() [L77] CALL assume_abort_if_not((var_1_11 >= -115292.1504606845700e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 1152921.504606845700e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not((var_1_11 >= -115292.1504606845700e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 1152921.504606845700e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=32, var_1_13=0, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L78] var_1_13 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=32, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_12=32, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L80] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_12=32, var_1_13=1, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, var_1_12=32, var_1_13=1, var_1_14=20114, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L81] var_1_14 = __VERIFIER_nondet_ushort() [L82] CALL assume_abort_if_not(var_1_14 >= 16383) VAL [\old(cond)=1, isInitial=1, var_1_12=32, var_1_13=1, var_1_14=-48692, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_14 >= 16383) VAL [isInitial=1, var_1_12=32, var_1_13=1, var_1_14=-48692, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L83] CALL assume_abort_if_not(var_1_14 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_12=32, var_1_13=1, var_1_14=-48692, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_14 <= 32767) VAL [isInitial=1, var_1_12=32, var_1_13=1, var_1_14=-48692, var_1_15=32, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L84] var_1_15 = __VERIFIER_nondet_ushort() [L85] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=32, var_1_13=1, var_1_14=-48692, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_12=32, var_1_13=1, var_1_14=-48692, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L86] CALL assume_abort_if_not(var_1_15 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_12=32, var_1_13=1, var_1_14=-48692, var_1_15=16383, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_15 <= 16383) VAL [isInitial=1, var_1_12=32, var_1_13=1, var_1_14=-48692, var_1_15=16383, var_1_16=16773, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L87] var_1_16 = __VERIFIER_nondet_ushort() [L88] CALL assume_abort_if_not(var_1_16 >= 16384) VAL [\old(cond)=1, isInitial=1, var_1_12=32, var_1_13=1, var_1_14=-48692, var_1_15=16383, var_1_16=32767, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_16 >= 16384) VAL [isInitial=1, var_1_12=32, var_1_13=1, var_1_14=-48692, var_1_15=16383, var_1_16=32767, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L89] CALL assume_abort_if_not(var_1_16 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_12=32, var_1_13=1, var_1_14=-48692, var_1_15=16383, var_1_16=32767, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_16 <= 32767) VAL [isInitial=1, var_1_12=32, var_1_13=1, var_1_14=-48692, var_1_15=16383, var_1_16=32767, var_1_1=0, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649, var_1_7=29/4] [L102] RET updateVariables() [L103] CALL step() [L41] var_1_1 = (((((var_1_2) > (var_1_3)) ? (var_1_2) : (var_1_3))) - var_1_4) [L42] unsigned short int stepLocal_0 = var_1_4; [L43] COND FALSE !(stepLocal_0 > var_1_2) [L46] var_1_7 = (var_1_8 + (var_1_9 + (var_1_10 + var_1_11))) [L47] COND FALSE !(! var_1_13) [L50] COND TRUE \read(var_1_13) [L51] var_1_12 = ((27636 + var_1_16) - (((((16853 - 10)) > (var_1_14)) ? ((16853 - 10)) : (var_1_14)))) [L103] RET step() [L104] CALL, EXPR property() [L94-L95] return (((var_1_1 == ((unsigned short int) (((((var_1_2) > (var_1_3)) ? (var_1_2) : (var_1_3))) - var_1_4))) && ((var_1_4 > var_1_2) ? (var_1_5 == ((unsigned long int) (((var_1_6 - var_1_3) + 2144048120u) - var_1_2))) : 1)) && (var_1_7 == ((double) (var_1_8 + (var_1_9 + (var_1_10 + var_1_11)))))) && ((! var_1_13) ? (var_1_12 == ((unsigned short int) (var_1_3 - (var_1_14 - var_1_15)))) : (var_1_13 ? (var_1_12 == ((unsigned short int) ((27636 + var_1_16) - (((((16853 - 10)) > (var_1_14)) ? ((16853 - 10)) : (var_1_14)))))) : (var_1_12 == ((unsigned short int) var_1_3)))) ; [L104] RET, EXPR property() [L104] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_12=43559, var_1_13=1, var_1_14=-48692, var_1_15=16383, var_1_16=32767, var_1_1=11254, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649] [L19] reach_error() VAL [isInitial=1, var_1_12=43559, var_1_13=1, var_1_14=-48692, var_1_15=16383, var_1_16=32767, var_1_1=11254, var_1_2=44021, var_1_3=3191057396, var_1_4=-32769, var_1_5=16, var_1_6=-2147483649] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 23:44:59,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/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_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-38.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/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_989c39ad-5f17-43af-baee-cee54de291b0/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 8ecb8a86c5100f100392f33b5049e59f5466347bbc0a9c9e82d59cb07a715797 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:45:03,146 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:45:03,307 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-13 23:45:03,319 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:45:03,321 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:45:03,368 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:45:03,369 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:45:03,369 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:45:03,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:45:03,370 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:45:03,371 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:45:03,371 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:45:03,372 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:45:03,372 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:45:03,372 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:45:03,373 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:45:03,373 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:45:03,373 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:45:03,373 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:45:03,373 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:45:03,373 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:45:03,374 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:45:03,374 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:45:03,374 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:45:03,374 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:45:03,374 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:45:03,374 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:45:03,374 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:45:03,374 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:45:03,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:45:03,374 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:45:03,375 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:45:03,375 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 23:45:03,375 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:45:03,376 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:45:03,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:45:03,377 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:45:03,377 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:45:03,377 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:45:03,377 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:45:03,378 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:45:03,378 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:45:03,378 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:45:03,378 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_989c39ad-5f17-43af-baee-cee54de291b0/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 -> 8ecb8a86c5100f100392f33b5049e59f5466347bbc0a9c9e82d59cb07a715797 [2024-11-13 23:45:03,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:45:03,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:45:03,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:45:03,764 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:45:03,765 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:45:03,766 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-38.i Unable to find full path for "g++" [2024-11-13 23:45:06,062 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:45:06,325 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:45:06,326 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-38.i [2024-11-13 23:45:06,335 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/data/ad306ba90/4a9cd00116724383b2c63aab2609f21b/FLAGdb7bc58b6 [2024-11-13 23:45:06,354 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/data/ad306ba90/4a9cd00116724383b2c63aab2609f21b [2024-11-13 23:45:06,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:45:06,359 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:45:06,361 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:45:06,361 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:45:06,366 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:45:06,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:45:06" (1/1) ... [2024-11-13 23:45:06,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e1b3ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:06, skipping insertion in model container [2024-11-13 23:45:06,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:45:06" (1/1) ... [2024-11-13 23:45:06,389 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:45:06,571 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_989c39ad-5f17-43af-baee-cee54de291b0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-38.i[915,928] [2024-11-13 23:45:06,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:45:06,640 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:45:06,654 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_989c39ad-5f17-43af-baee-cee54de291b0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-38.i[915,928] [2024-11-13 23:45:06,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:45:06,706 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:45:06,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:06 WrapperNode [2024-11-13 23:45:06,707 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:45:06,708 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:45:06,708 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:45:06,708 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:45:06,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:06" (1/1) ... [2024-11-13 23:45:06,727 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:06" (1/1) ... [2024-11-13 23:45:06,752 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 115 [2024-11-13 23:45:06,753 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:45:06,754 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:45:06,754 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:45:06,754 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:45:06,763 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:06" (1/1) ... [2024-11-13 23:45:06,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:06" (1/1) ... [2024-11-13 23:45:06,769 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:06" (1/1) ... [2024-11-13 23:45:06,769 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:06" (1/1) ... [2024-11-13 23:45:06,789 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:06" (1/1) ... [2024-11-13 23:45:06,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:06" (1/1) ... [2024-11-13 23:45:06,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:06" (1/1) ... [2024-11-13 23:45:06,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:06" (1/1) ... [2024-11-13 23:45:06,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:45:06,815 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:45:06,815 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:45:06,816 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:45:06,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:06" (1/1) ... [2024-11-13 23:45:06,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:45:06,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:45:06,866 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:45:06,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:45:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:45:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 23:45:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 23:45:06,908 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 23:45:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:45:06,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:45:07,040 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:45:07,043 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:45:11,185 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-13 23:45:11,186 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:45:11,196 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:45:11,196 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:45:11,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:45:11 BoogieIcfgContainer [2024-11-13 23:45:11,197 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:45:11,199 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:45:11,200 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:45:11,205 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:45:11,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:45:06" (1/3) ... [2024-11-13 23:45:11,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361c85d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:45:11, skipping insertion in model container [2024-11-13 23:45:11,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:06" (2/3) ... [2024-11-13 23:45:11,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361c85d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:45:11, skipping insertion in model container [2024-11-13 23:45:11,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:45:11" (3/3) ... [2024-11-13 23:45:11,208 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-38.i [2024-11-13 23:45:11,221 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:45:11,222 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-38.i that has 2 procedures, 55 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:45:11,281 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:45:11,296 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;@acf9ac5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:45:11,296 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:45:11,301 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 32 states have (on average 1.25) internal successors, (40), 33 states have internal predecessors, (40), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 23:45:11,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-13 23:45:11,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:11,315 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:45:11,316 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:45:11,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:11,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1491484885, now seen corresponding path program 1 times [2024-11-13 23:45:11,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:11,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794413956] [2024-11-13 23:45:11,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:11,352 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 [2024-11-13 23:45:11,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:11,355 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/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) [2024-11-13 23:45:11,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/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 [2024-11-13 23:45:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:11,841 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 23:45:11,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:11,925 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2024-11-13 23:45:11,926 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:11,926 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:11,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794413956] [2024-11-13 23:45:11,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794413956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:11,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:11,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:45:11,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556527375] [2024-11-13 23:45:11,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:11,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 23:45:11,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:11,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 23:45:11,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:45:11,987 INFO L87 Difference]: Start difference. First operand has 55 states, 32 states have (on average 1.25) internal successors, (40), 33 states have internal predecessors, (40), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-13 23:45:12,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:12,046 INFO L93 Difference]: Finished difference Result 103 states and 174 transitions. [2024-11-13 23:45:12,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 23:45:12,048 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 124 [2024-11-13 23:45:12,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:12,060 INFO L225 Difference]: With dead ends: 103 [2024-11-13 23:45:12,060 INFO L226 Difference]: Without dead ends: 51 [2024-11-13 23:45:12,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:45:12,071 INFO L432 NwaCegarLoop]: 73 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, 73 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 [2024-11-13 23:45:12,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:45:12,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-13 23:45:12,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-13 23:45:12,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 29 states have internal predecessors, (33), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-13 23:45:12,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 73 transitions. [2024-11-13 23:45:12,144 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 73 transitions. Word has length 124 [2024-11-13 23:45:12,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:12,146 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 73 transitions. [2024-11-13 23:45:12,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-13 23:45:12,147 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions. [2024-11-13 23:45:12,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-13 23:45:12,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:12,152 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:45:12,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/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 [2024-11-13 23:45:12,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/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 [2024-11-13 23:45:12,356 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:45:12,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:12,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1223437859, now seen corresponding path program 1 times [2024-11-13 23:45:12,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:12,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168516485] [2024-11-13 23:45:12,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:12,361 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 [2024-11-13 23:45:12,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:12,364 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/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) [2024-11-13 23:45:12,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989c39ad-5f17-43af-baee-cee54de291b0/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 [2024-11-13 23:45:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:13,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-13 23:45:13,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:54,727 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 410 proven. 231 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-11-13 23:45:54,728 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:56:26,419 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse17 ((_ zero_extend 16) c_~var_1_2~0)) (.cse16 ((_ zero_extend 16) c_~var_1_3~0)) (.cse22 ((_ zero_extend 16) c_~var_1_4~0))) (let ((.cse23 ((_ zero_extend 16) c_~var_1_14~0)) (.cse24 (fp.eq c_~var_1_7~0 (fp.add c_currentRoundingMode c_~var_1_8~0 (fp.add c_currentRoundingMode c_~var_1_9~0 (fp.add c_currentRoundingMode c_~var_1_10~0 c_~var_1_11~0))))) (.cse26 ((_ zero_extend 16) c_~var_1_1~0)) (.cse25 (bvneg .cse22)) (.cse27 (bvsgt .cse17 .cse16))) (let ((.cse20 (= (_ bv0 8) c_~var_1_13~0)) (.cse18 (or (and .cse24 (= .cse26 ((_ zero_extend 16) ((_ extract 15 0) (bvadd .cse16 .cse25))))) .cse27)) (.cse19 (or (and .cse24 (= ((_ zero_extend 16) ((_ extract 15 0) (bvadd .cse17 .cse25))) .cse26)) (not .cse27))) (.cse12 ((_ zero_extend 16) c_~var_1_12~0)) (.cse13 (bvneg .cse23))) (let ((.cse14 (forall ((~var_1_16~0 (_ BitVec 16))) (= .cse12 ((_ zero_extend 16) ((_ extract 15 0) (bvadd .cse13 (_ bv27636 32) ((_ zero_extend 16) ~var_1_16~0))))))) (.cse11 (and .cse18 (= ((_ zero_extend 16) ((_ extract 15 0) (bvadd (bvneg (bvadd (bvneg ((_ zero_extend 16) c_~var_1_15~0)) .cse23)) .cse16))) .cse12) .cse19)) (.cse21 (forall ((~var_1_16~0 (_ BitVec 16))) (= ((_ zero_extend 16) ((_ extract 15 0) (bvadd (_ bv10793 32) ((_ zero_extend 16) ~var_1_16~0)))) .cse12))) (.cse15 (not .cse20)) (.cse1 (bvsgt (_ bv16843 32) .cse23))) (let ((.cse0 (bvsgt .cse22 .cse17)) (.cse10 (not .cse1)) (.cse8 (or (and (or (forall ((~var_1_16~0 (_ BitVec 16))) (not (= ((_ zero_extend 16) ((_ extract 15 0) (bvadd (_ bv10793 32) ((_ zero_extend 16) ~var_1_16~0)))) .cse12))) .cse11) (or .cse11 .cse21)) .cse15)) (.cse9 (or (and .cse18 .cse19 .cse21) .cse20)) (.cse5 (or (and .cse18 .cse19 .cse14) .cse20)) (.cse4 (= c_~var_1_5~0 (bvadd (_ bv2144048120 32) (bvneg .cse16) c_~var_1_6~0 (bvneg .cse17)))) (.cse6 (or (and (or .cse11 (forall ((~var_1_16~0 (_ BitVec 16))) (not (= .cse12 ((_ zero_extend 16) ((_ extract 15 0) (bvadd .cse13 (_ bv27636 32) ((_ zero_extend 16) ~var_1_16~0)))))))) (or .cse14 .cse11)) .cse15))) (and (or .cse0 (let ((.cse3 (not .cse4))) (and (or .cse1 (let ((.cse2 (and .cse5 .cse6))) (and (or .cse2 .cse3) (or .cse2 .cse4)))) (or (let ((.cse7 (and .cse8 .cse9))) (and (or .cse7 .cse4) (or .cse7 .cse3))) .cse10)))) (or (not .cse0) (and (or .cse10 (and .cse8 .cse9 .cse4)) (or (and .cse5 .cse4 .cse6) .cse1))))))))) is different from false [2024-11-13 23:56:28,445 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse17 ((_ zero_extend 16) c_~var_1_2~0)) (.cse16 ((_ zero_extend 16) c_~var_1_3~0)) (.cse22 ((_ zero_extend 16) c_~var_1_4~0))) (let ((.cse23 ((_ zero_extend 16) c_~var_1_14~0)) (.cse24 (fp.eq c_~var_1_7~0 (fp.add c_currentRoundingMode c_~var_1_8~0 (fp.add c_currentRoundingMode c_~var_1_9~0 (fp.add c_currentRoundingMode c_~var_1_10~0 c_~var_1_11~0))))) (.cse26 ((_ zero_extend 16) c_~var_1_1~0)) (.cse25 (bvneg .cse22)) (.cse27 (bvsgt .cse17 .cse16))) (let ((.cse20 (= (_ bv0 8) c_~var_1_13~0)) (.cse18 (or (and .cse24 (= .cse26 ((_ zero_extend 16) ((_ extract 15 0) (bvadd .cse16 .cse25))))) .cse27)) (.cse19 (or (and .cse24 (= ((_ zero_extend 16) ((_ extract 15 0) (bvadd .cse17 .cse25))) .cse26)) (not .cse27))) (.cse12 ((_ zero_extend 16) c_~var_1_12~0)) (.cse13 (bvneg .cse23))) (let ((.cse14 (forall ((~var_1_16~0 (_ BitVec 16))) (= .cse12 ((_ zero_extend 16) ((_ extract 15 0) (bvadd .cse13 (_ bv27636 32) ((_ zero_extend 16) ~var_1_16~0))))))) (.cse11 (and .cse18 (= ((_ zero_extend 16) ((_ extract 15 0) (bvadd (bvneg (bvadd (bvneg ((_ zero_extend 16) c_~var_1_15~0)) .cse23)) .cse16))) .cse12) .cse19)) (.cse21 (forall ((~var_1_16~0 (_ BitVec 16))) (= ((_ zero_extend 16) ((_ extract 15 0) (bvadd (_ bv10793 32) ((_ zero_extend 16) ~var_1_16~0)))) .cse12))) (.cse15 (not .cse20)) (.cse1 (bvsgt (_ bv16843 32) .cse23))) (let ((.cse0 (bvsgt .cse22 .cse17)) (.cse10 (not .cse1)) (.cse8 (or (and (or (forall ((~var_1_16~0 (_ BitVec 16))) (not (= ((_ zero_extend 16) ((_ extract 15 0) (bvadd (_ bv10793 32) ((_ zero_extend 16) ~var_1_16~0)))) .cse12))) .cse11) (or .cse11 .cse21)) .cse15)) (.cse9 (or (and .cse18 .cse19 .cse21) .cse20)) (.cse5 (or (and .cse18 .cse19 .cse14) .cse20)) (.cse4 (= c_~var_1_5~0 (bvadd (_ bv2144048120 32) (bvneg .cse16) c_~var_1_6~0 (bvneg .cse17)))) (.cse6 (or (and (or .cse11 (forall ((~var_1_16~0 (_ BitVec 16))) (not (= .cse12 ((_ zero_extend 16) ((_ extract 15 0) (bvadd .cse13 (_ bv27636 32) ((_ zero_extend 16) ~var_1_16~0)))))))) (or .cse14 .cse11)) .cse15))) (and (or .cse0 (let ((.cse3 (not .cse4))) (and (or .cse1 (let ((.cse2 (and .cse5 .cse6))) (and (or .cse2 .cse3) (or .cse2 .cse4)))) (or (let ((.cse7 (and .cse8 .cse9))) (and (or .cse7 .cse4) (or .cse7 .cse3))) .cse10)))) (or (not .cse0) (and (or .cse10 (and .cse8 .cse9 .cse4)) (or (and .cse5 .cse4 .cse6) .cse1))))))))) is different from true