./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4174816ef344926bad8876b5a23c69137012cf10d2912eee66c6eaf9797b3d25 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:45:06,837 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:45:06,955 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 04:45:06,961 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:45:06,961 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:45:07,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:45:07,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:45:07,011 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:45:07,012 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:45:07,014 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:45:07,015 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:45:07,015 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:45:07,016 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:45:07,016 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:45:07,017 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:45:07,020 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:45:07,020 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:45:07,021 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:45:07,021 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:45:07,021 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:45:07,022 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:45:07,027 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:45:07,027 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:45:07,028 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:45:07,028 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:45:07,029 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:45:07,029 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:45:07,029 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:45:07,029 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:45:07,030 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:45:07,030 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:45:07,031 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:45:07,031 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:45:07,031 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:45:07,032 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:45:07,032 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:45:07,033 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:45:07,033 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:45:07,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:45:07,033 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:45:07,034 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:45:07,034 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:45:07,035 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:45:07,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:45:07,035 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:45:07,036 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:45:07,036 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:45:07,036 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4174816ef344926bad8876b5a23c69137012cf10d2912eee66c6eaf9797b3d25 [2024-11-09 04:45:07,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:45:07,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:45:07,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:45:07,487 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:45:07,487 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:45:07,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-3.i Unable to find full path for "g++" [2024-11-09 04:45:10,007 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:45:10,317 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:45:10,318 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-3.i [2024-11-09 04:45:10,336 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/data/024d85fae/1d849da5a2304e83a7afc118639d27c5/FLAG8f8970f92 [2024-11-09 04:45:10,405 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/data/024d85fae/1d849da5a2304e83a7afc118639d27c5 [2024-11-09 04:45:10,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:45:10,419 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:45:10,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:45:10,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:45:10,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:45:10,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:45:10" (1/1) ... [2024-11-09 04:45:10,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e8fb8df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:10, skipping insertion in model container [2024-11-09 04:45:10,442 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:45:10" (1/1) ... [2024-11-09 04:45:10,482 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:45:10,766 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_58174655-54b5-4f48-a667-6e2b39f5c051/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-3.i[914,927] [2024-11-09 04:45:10,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:45:10,834 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:45:10,852 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_58174655-54b5-4f48-a667-6e2b39f5c051/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-3.i[914,927] [2024-11-09 04:45:10,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:45:10,902 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:45:10,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:10 WrapperNode [2024-11-09 04:45:10,903 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:45:10,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:45:10,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:45:10,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:45:10,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:10" (1/1) ... [2024-11-09 04:45:10,926 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:10" (1/1) ... [2024-11-09 04:45:10,958 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 109 [2024-11-09 04:45:10,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:45:10,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:45:10,960 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:45:10,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:45:10,975 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:10" (1/1) ... [2024-11-09 04:45:10,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:10" (1/1) ... [2024-11-09 04:45:10,978 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:10" (1/1) ... [2024-11-09 04:45:10,979 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:10" (1/1) ... [2024-11-09 04:45:10,987 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:10" (1/1) ... [2024-11-09 04:45:10,991 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:10" (1/1) ... [2024-11-09 04:45:10,994 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:10" (1/1) ... [2024-11-09 04:45:10,996 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:10" (1/1) ... [2024-11-09 04:45:10,999 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:45:11,004 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:45:11,004 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:45:11,004 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:45:11,010 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:10" (1/1) ... [2024-11-09 04:45:11,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:45:11,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:45:11,055 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:45:11,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:45:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:45:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:45:11,103 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:45:11,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:45:11,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:45:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:45:11,224 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:45:11,228 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:45:11,670 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-09 04:45:11,670 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:45:11,837 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:45:11,837 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:45:11,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:45:11 BoogieIcfgContainer [2024-11-09 04:45:11,838 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:45:11,842 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:45:11,842 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:45:11,847 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:45:11,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:45:10" (1/3) ... [2024-11-09 04:45:11,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44cd49bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:45:11, skipping insertion in model container [2024-11-09 04:45:11,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:10" (2/3) ... [2024-11-09 04:45:11,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44cd49bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:45:11, skipping insertion in model container [2024-11-09 04:45:11,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:45:11" (3/3) ... [2024-11-09 04:45:11,851 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-3.i [2024-11-09 04:45:11,875 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:45:11,876 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:45:11,959 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:45:11,967 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;@54977bf0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:45:11,967 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:45:11,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 04:45:11,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 04:45:11,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:45:11,984 INFO L215 NwaCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:45:11,985 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:45:11,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:45:11,992 INFO L85 PathProgramCache]: Analyzing trace with hash -13777579, now seen corresponding path program 1 times [2024-11-09 04:45:12,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:45:12,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251428762] [2024-11-09 04:45:12,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:45:12,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:45:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:45:12,498 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 04:45:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:45:12,768 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 04:45:12,771 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 04:45:12,774 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 04:45:12,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:45:12,783 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 04:45:12,894 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:45:12,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:45:12 BoogieIcfgContainer [2024-11-09 04:45:12,899 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:45:12,900 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:45:12,901 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:45:12,901 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:45:12,902 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:45:11" (3/4) ... [2024-11-09 04:45:12,909 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 04:45:12,911 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:45:12,913 INFO L158 Benchmark]: Toolchain (without parser) took 2496.39ms. Allocated memory is still 161.5MB. Free memory was 133.5MB in the beginning and 54.5MB in the end (delta: 79.0MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2024-11-09 04:45:12,914 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 161.5MB. Free memory is still 129.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:45:12,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.60ms. Allocated memory is still 161.5MB. Free memory was 133.5MB in the beginning and 119.5MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 04:45:12,915 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.61ms. Allocated memory is still 161.5MB. Free memory was 119.5MB in the beginning and 116.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:45:12,916 INFO L158 Benchmark]: Boogie Preprocessor took 39.99ms. Allocated memory is still 161.5MB. Free memory was 116.8MB in the beginning and 115.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:45:12,917 INFO L158 Benchmark]: RCFGBuilder took 834.65ms. Allocated memory is still 161.5MB. Free memory was 115.3MB in the beginning and 90.8MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-09 04:45:12,918 INFO L158 Benchmark]: TraceAbstraction took 1057.72ms. Allocated memory is still 161.5MB. Free memory was 90.1MB in the beginning and 55.1MB in the end (delta: 35.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-09 04:45:12,919 INFO L158 Benchmark]: Witness Printer took 11.05ms. Allocated memory is still 161.5MB. Free memory was 55.1MB in the beginning and 54.5MB in the end (delta: 648.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:45:12,923 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 161.5MB. Free memory is still 129.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 478.60ms. Allocated memory is still 161.5MB. Free memory was 133.5MB in the beginning and 119.5MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.61ms. Allocated memory is still 161.5MB. Free memory was 119.5MB in the beginning and 116.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.99ms. Allocated memory is still 161.5MB. Free memory was 116.8MB in the beginning and 115.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 834.65ms. Allocated memory is still 161.5MB. Free memory was 115.3MB in the beginning and 90.8MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1057.72ms. Allocated memory is still 161.5MB. Free memory was 90.1MB in the beginning and 55.1MB in the end (delta: 35.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 11.05ms. Allocated memory is still 161.5MB. Free memory was 55.1MB in the beginning and 54.5MB in the end (delta: 648.7kB). 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 someBinaryDOUBLEComparisonOperation at line 89. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_4 = 0; [L24] unsigned char var_1_5 = 0; [L25] signed long int var_1_6 = -64; [L26] signed long int var_1_7 = -5; [L27] signed long int var_1_8 = 500; [L28] signed long int var_1_9 = -5; [L29] signed long int var_1_10 = -100; [L30] unsigned char var_1_11 = 1; [L31] double var_1_12 = 127.5; [L32] double var_1_13 = 7.25; [L33] unsigned char var_1_14 = 1; [L34] unsigned char var_1_15 = 0; [L93] isInitial = 1 [L94] FCALL initially() [L95] int k_loop; [L96] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L96] COND FALSE !(k_loop < 1) VAL [isInitial=1, k_loop=0, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L96] COND TRUE k_loop < 1 [L97] FCALL updateLastVariables() [L98] CALL updateVariables() [L62] var_1_4 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L64] CALL assume_abort_if_not(var_1_4 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_4 <= 0) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L65] var_1_5 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L67] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L68] var_1_7 = __VERIFIER_nondet_long() [L69] CALL assume_abort_if_not(var_1_7 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_7 >= -1073741823) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=500, var_1_9=-5] [L70] CALL assume_abort_if_not(var_1_7 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_7 <= 1073741823) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=500, var_1_9=-5] [L71] var_1_8 = __VERIFIER_nondet_long() [L72] CALL assume_abort_if_not(var_1_8 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=-1, var_1_9=-5] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_8 >= -1073741823) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=-1, var_1_9=-5] [L73] CALL assume_abort_if_not(var_1_8 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=-1, var_1_9=-5] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_8 <= 1073741823) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=-1, var_1_9=-5] [L74] var_1_9 = __VERIFIER_nondet_long() [L75] CALL assume_abort_if_not(var_1_9 >= -536870912) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=-1, var_1_9=0] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_9 >= -536870912) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=-1, var_1_9=0] [L76] CALL assume_abort_if_not(var_1_9 <= 536870912) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=-1, var_1_9=0] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_9 <= 536870912) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=-1, var_1_9=0] [L77] var_1_10 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_10 >= -536870911) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=-1, var_1_9=0] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_10 >= -536870911) VAL [isInitial=1, var_1_10=-1, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=-1, var_1_9=0] [L79] CALL assume_abort_if_not(var_1_10 <= 536870911) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=-1, var_1_9=0] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_10 <= 536870911) VAL [isInitial=1, var_1_10=-1, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=-1, var_1_9=0] [L80] var_1_13 = __VERIFIER_nondet_double() [L81] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=-1, var_1_9=0] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=-1, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=-1, var_1_9=0] [L82] var_1_15 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_15 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=-1, var_1_9=0] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_15 >= 1) VAL [isInitial=1, var_1_10=-1, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=-1, var_1_9=0] [L84] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=-1, var_1_9=0] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=-1, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1, var_1_8=-1, var_1_9=0] [L98] RET updateVariables() [L99] CALL step() [L38] var_1_12 = var_1_13 [L39] var_1_14 = var_1_15 [L40] COND FALSE !(! var_1_14) [L43] var_1_6 = ((((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))) + var_1_10) + var_1_7) [L45] signed long int stepLocal_2 = var_1_7; [L46] signed long int stepLocal_1 = var_1_9; [L47] COND TRUE var_1_8 <= stepLocal_2 [L48] COND FALSE !(var_1_10 >= stepLocal_1) [L51] var_1_11 = (var_1_14 || (! var_1_5)) [L54] unsigned char stepLocal_0 = var_1_14; [L55] COND FALSE !(! var_1_11) [L99] RET step() [L100] CALL, EXPR property() [L89-L90] return (((((! var_1_11) ? ((var_1_11 && var_1_14) ? (var_1_1 == ((unsigned char) (var_1_4 || var_1_5))) : 1) : 1) && ((! var_1_14) ? (var_1_6 == ((signed long int) (var_1_7 + var_1_8))) : (var_1_6 == ((signed long int) ((((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))) + var_1_10) + var_1_7))))) && ((var_1_8 <= var_1_7) ? ((var_1_10 >= var_1_9) ? (var_1_11 == ((unsigned char) (! var_1_5))) : (var_1_11 == ((unsigned char) (var_1_14 || (! var_1_5))))) : 1)) && (var_1_12 == ((double) var_1_13))) && (var_1_14 == ((unsigned char) var_1_15)) ; [L100] RET, EXPR property() [L100] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=-1, var_1_11=1, var_1_12=505, var_1_13=505, var_1_14=-255, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=-1, var_1_9=0] [L19] reach_error() VAL [isInitial=1, var_1_10=-1, var_1_11=1, var_1_12=505, var_1_13=505, var_1_14=-255, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-2, var_1_7=-1, var_1_8=-1, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 15, 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=34occurred 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, 58 NumberOfCodeBlocks, 58 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 [2024-11-09 04:45:12,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4174816ef344926bad8876b5a23c69137012cf10d2912eee66c6eaf9797b3d25 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:45:16,148 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:45:16,270 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 04:45:16,281 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:45:16,283 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:45:16,331 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:45:16,334 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:45:16,335 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:45:16,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:45:16,337 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:45:16,338 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:45:16,338 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:45:16,339 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:45:16,339 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:45:16,340 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:45:16,340 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:45:16,341 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:45:16,341 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:45:16,342 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:45:16,342 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:45:16,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:45:16,343 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:45:16,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:45:16,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:45:16,345 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 04:45:16,345 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 04:45:16,345 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:45:16,346 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 04:45:16,346 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:45:16,346 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:45:16,347 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:45:16,347 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:45:16,347 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:45:16,348 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:45:16,348 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:45:16,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:45:16,349 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:45:16,349 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:45:16,350 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:45:16,350 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 04:45:16,350 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 04:45:16,355 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:45:16,355 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:45:16,355 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4174816ef344926bad8876b5a23c69137012cf10d2912eee66c6eaf9797b3d25 [2024-11-09 04:45:16,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:45:16,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:45:16,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:45:16,912 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:45:16,913 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:45:16,915 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-3.i Unable to find full path for "g++" [2024-11-09 04:45:19,468 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:45:19,814 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:45:19,815 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-3.i [2024-11-09 04:45:19,825 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/data/dc50b3737/9fc85cd01e344c7382fe7ea73bd43b7c/FLAG5ddbe59e5 [2024-11-09 04:45:19,841 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/data/dc50b3737/9fc85cd01e344c7382fe7ea73bd43b7c [2024-11-09 04:45:19,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:45:19,846 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:45:19,847 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:45:19,847 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:45:19,854 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:45:19,855 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:45:19" (1/1) ... [2024-11-09 04:45:19,856 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32206660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:19, skipping insertion in model container [2024-11-09 04:45:19,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:45:19" (1/1) ... [2024-11-09 04:45:19,889 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:45:20,157 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_58174655-54b5-4f48-a667-6e2b39f5c051/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-3.i[914,927] [2024-11-09 04:45:20,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:45:20,285 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:45:20,305 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_58174655-54b5-4f48-a667-6e2b39f5c051/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-3.i[914,927] [2024-11-09 04:45:20,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:45:20,389 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:45:20,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:20 WrapperNode [2024-11-09 04:45:20,389 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:45:20,392 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:45:20,392 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:45:20,392 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:45:20,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:20" (1/1) ... [2024-11-09 04:45:20,420 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:20" (1/1) ... [2024-11-09 04:45:20,458 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 105 [2024-11-09 04:45:20,462 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:45:20,463 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:45:20,463 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:45:20,464 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:45:20,479 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:20" (1/1) ... [2024-11-09 04:45:20,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:20" (1/1) ... [2024-11-09 04:45:20,487 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:20" (1/1) ... [2024-11-09 04:45:20,487 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:20" (1/1) ... [2024-11-09 04:45:20,502 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:20" (1/1) ... [2024-11-09 04:45:20,510 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:20" (1/1) ... [2024-11-09 04:45:20,516 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:20" (1/1) ... [2024-11-09 04:45:20,518 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:20" (1/1) ... [2024-11-09 04:45:20,526 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:45:20,530 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:45:20,531 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:45:20,531 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:45:20,533 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:20" (1/1) ... [2024-11-09 04:45:20,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:45:20,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:45:20,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:45:20,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:45:20,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:45:20,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 04:45:20,626 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:45:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:45:20,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:45:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:45:20,753 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:45:20,756 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:45:21,157 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-09 04:45:21,158 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:45:21,177 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:45:21,177 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:45:21,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:45:21 BoogieIcfgContainer [2024-11-09 04:45:21,178 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:45:21,182 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:45:21,182 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:45:21,186 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:45:21,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:45:19" (1/3) ... [2024-11-09 04:45:21,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a562136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:45:21, skipping insertion in model container [2024-11-09 04:45:21,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:20" (2/3) ... [2024-11-09 04:45:21,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a562136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:45:21, skipping insertion in model container [2024-11-09 04:45:21,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:45:21" (3/3) ... [2024-11-09 04:45:21,191 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-3.i [2024-11-09 04:45:21,212 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:45:21,213 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:45:21,291 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:45:21,300 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;@daf4bc1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:45:21,300 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:45:21,306 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 04:45:21,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 04:45:21,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:45:21,322 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:45:21,323 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:45:21,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:45:21,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1019691748, now seen corresponding path program 1 times [2024-11-09 04:45:21,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:45:21,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963683196] [2024-11-09 04:45:21,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:45:21,350 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:45:21,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:45:21,354 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 04:45:21,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 04:45:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:45:21,605 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 04:45:21,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:45:21,667 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-09 04:45:21,668 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:45:21,669 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:45:21,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963683196] [2024-11-09 04:45:21,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1963683196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:45:21,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:45:21,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:45:21,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591578496] [2024-11-09 04:45:21,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:45:21,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 04:45:21,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:45:21,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 04:45:21,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:45:21,716 INFO L87 Difference]: Start difference. First operand has 50 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 04:45:21,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:45:21,764 INFO L93 Difference]: Finished difference Result 97 states and 156 transitions. [2024-11-09 04:45:21,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 04:45:21,769 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 98 [2024-11-09 04:45:21,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:45:21,782 INFO L225 Difference]: With dead ends: 97 [2024-11-09 04:45:21,782 INFO L226 Difference]: Without dead ends: 46 [2024-11-09 04:45:21,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:45:21,792 INFO L432 NwaCegarLoop]: 70 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, 70 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:45:21,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:45:21,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-09 04:45:21,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-09 04:45:21,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 04:45:21,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2024-11-09 04:45:21,862 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 98 [2024-11-09 04:45:21,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:45:21,864 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2024-11-09 04:45:21,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 04:45:21,865 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2024-11-09 04:45:21,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 04:45:21,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:45:21,874 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:45:21,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 04:45:22,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:45:22,076 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:45:22,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:45:22,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1717732378, now seen corresponding path program 1 times [2024-11-09 04:45:22,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:45:22,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814135353] [2024-11-09 04:45:22,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:45:22,079 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:45:22,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:45:22,083 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 04:45:22,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 04:45:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:45:22,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 04:45:22,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:45:22,685 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-09 04:45:22,689 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:45:22,690 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:45:22,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814135353] [2024-11-09 04:45:22,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [814135353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:45:22,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:45:22,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 04:45:22,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933799066] [2024-11-09 04:45:22,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:45:22,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 04:45:22,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:45:22,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 04:45:22,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-09 04:45:22,704 INFO L87 Difference]: Start difference. First operand 46 states and 65 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 04:45:23,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:45:23,767 INFO L93 Difference]: Finished difference Result 124 states and 173 transitions. [2024-11-09 04:45:23,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:45:23,770 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 98 [2024-11-09 04:45:23,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:45:23,774 INFO L225 Difference]: With dead ends: 124 [2024-11-09 04:45:23,777 INFO L226 Difference]: Without dead ends: 81 [2024-11-09 04:45:23,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-09 04:45:23,780 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 109 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:45:23,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 204 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:45:23,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-09 04:45:23,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2024-11-09 04:45:23,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 44 states have (on average 1.1136363636363635) internal successors, (49), 45 states have internal predecessors, (49), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-09 04:45:23,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 105 transitions. [2024-11-09 04:45:23,826 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 105 transitions. Word has length 98 [2024-11-09 04:45:23,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:45:23,827 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 105 transitions. [2024-11-09 04:45:23,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 04:45:23,828 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 105 transitions. [2024-11-09 04:45:23,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 04:45:23,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:45:23,833 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:45:23,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-09 04:45:24,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:45:24,034 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:45:24,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:45:24,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1897176548, now seen corresponding path program 1 times [2024-11-09 04:45:24,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:45:24,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [382953471] [2024-11-09 04:45:24,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:45:24,039 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:45:24,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:45:24,045 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 04:45:24,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 04:45:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:45:24,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 04:45:24,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:47:41,698 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 157 proven. 128 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-09 04:47:41,699 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:51:37,950 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:51:37,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [382953471] [2024-11-09 04:51:37,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [382953471] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:51:37,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1308315617] [2024-11-09 04:51:37,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:51:37,954 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 04:51:37,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 04:51:37,961 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 04:51:37,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-09 04:51:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:51:38,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 04:51:38,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:52:33,003 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 245 proven. 36 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-09 04:52:33,003 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:56:17,067 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 39 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-11-09 04:56:17,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1308315617] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:56:17,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937177146] [2024-11-09 04:56:17,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:56:17,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:56:17,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:56:17,071 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:56:17,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58174655-54b5-4f48-a667-6e2b39f5c051/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 04:56:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:56:17,196 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 04:56:17,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:57:13,916 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 212 proven. 72 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-09 04:57:13,916 INFO L311 TraceCheckSpWp]: Computing backward predicates...