./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-89.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-89.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2 --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 3047be65ea0fc5640e4cd865efbd9906b9eaeb4a8d01185b0a8bdb2377eb8eb2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:23:16,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:23:16,165 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 11:23:16,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:23:16,173 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:23:16,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:23:16,203 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:23:16,204 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:23:16,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:23:16,205 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:23:16,206 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:23:16,206 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:23:16,207 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:23:16,207 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:23:16,208 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:23:16,208 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:23:16,209 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:23:16,209 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:23:16,210 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:23:16,210 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:23:16,211 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:23:16,211 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:23:16,212 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:23:16,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:23:16,213 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:23:16,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:23:16,214 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:23:16,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:23:16,215 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:23:16,215 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:23:16,216 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:23:16,216 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:23:16,216 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:23:16,217 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:23:16,217 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:23:16,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:23:16,218 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:23:16,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:23:16,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:23:16,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:23:16,220 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:23:16,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:23:16,221 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:23:16,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:23:16,221 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:23:16,222 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:23:16,222 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:23:16,222 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_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3047be65ea0fc5640e4cd865efbd9906b9eaeb4a8d01185b0a8bdb2377eb8eb2 [2024-11-02 11:23:16,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:23:16,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:23:16,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:23:16,644 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:23:16,645 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:23:16,646 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-89.i Unable to find full path for "g++" [2024-11-02 11:23:19,199 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:23:19,475 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:23:19,476 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-89.i [2024-11-02 11:23:19,484 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/data/ba9a613ff/23b83b82fff74014b384a2c9f068a5f3/FLAG8b8f2f15a [2024-11-02 11:23:19,500 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/data/ba9a613ff/23b83b82fff74014b384a2c9f068a5f3 [2024-11-02 11:23:19,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:23:19,505 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:23:19,506 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:23:19,507 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:23:19,513 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:23:19,514 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:23:19" (1/1) ... [2024-11-02 11:23:19,516 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d0ba9f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:19, skipping insertion in model container [2024-11-02 11:23:19,516 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:23:19" (1/1) ... [2024-11-02 11:23:19,560 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:23:19,746 WARN L251 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_736171cd-605e-4835-8042-b78526bb2bb5/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-89.i[915,928] [2024-11-02 11:23:19,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:23:19,805 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:23:19,818 WARN L251 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_736171cd-605e-4835-8042-b78526bb2bb5/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-89.i[915,928] [2024-11-02 11:23:19,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:23:19,868 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:23:19,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:19 WrapperNode [2024-11-02 11:23:19,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:23:19,870 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:23:19,870 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:23:19,870 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:23:19,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:19" (1/1) ... [2024-11-02 11:23:19,892 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:19" (1/1) ... [2024-11-02 11:23:19,930 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2024-11-02 11:23:19,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:23:19,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:23:19,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:23:19,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:23:19,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:19" (1/1) ... [2024-11-02 11:23:19,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:19" (1/1) ... [2024-11-02 11:23:19,948 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:19" (1/1) ... [2024-11-02 11:23:19,949 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:19" (1/1) ... [2024-11-02 11:23:19,956 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:19" (1/1) ... [2024-11-02 11:23:19,960 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:19" (1/1) ... [2024-11-02 11:23:19,963 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:19" (1/1) ... [2024-11-02 11:23:19,964 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:19" (1/1) ... [2024-11-02 11:23:19,968 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:23:19,969 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:23:19,969 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:23:19,969 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:23:19,970 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:19" (1/1) ... [2024-11-02 11:23:19,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:23:19,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:23:20,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:23:20,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:23:20,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:23:20,046 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 11:23:20,046 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 11:23:20,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:23:20,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:23:20,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:23:20,119 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:23:20,122 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:23:20,423 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-02 11:23:20,423 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:23:20,555 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:23:20,555 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 11:23:20,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:23:20 BoogieIcfgContainer [2024-11-02 11:23:20,556 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:23:20,559 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:23:20,561 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:23:20,565 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:23:20,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:23:19" (1/3) ... [2024-11-02 11:23:20,567 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1acc7b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:23:20, skipping insertion in model container [2024-11-02 11:23:20,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:19" (2/3) ... [2024-11-02 11:23:20,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1acc7b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:23:20, skipping insertion in model container [2024-11-02 11:23:20,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:23:20" (3/3) ... [2024-11-02 11:23:20,571 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-89.i [2024-11-02 11:23:20,592 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:23:20,592 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 11:23:20,671 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:23:20,678 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;@2c072f69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:23:20,678 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 11:23:20,682 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-02 11:23:20,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-02 11:23:20,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:20,691 INFO L215 NwaCegarLoop]: trace histogram [19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:23:20,692 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:23:20,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:20,698 INFO L85 PathProgramCache]: Analyzing trace with hash 58858556, now seen corresponding path program 1 times [2024-11-02 11:23:20,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:20,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937026114] [2024-11-02 11:23:20,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:20,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:23:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 11:23:21,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [534860915] [2024-11-02 11:23:21,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:21,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:23:21,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:23:21,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:23:21,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 11:23:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 11:23:21,315 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 11:23:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 11:23:21,468 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 11:23:21,471 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 11:23:21,473 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 11:23:21,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-02 11:23:21,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-02 11:23:21,683 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 11:23:21,757 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 11:23:21,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:23:21 BoogieIcfgContainer [2024-11-02 11:23:21,768 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 11:23:21,769 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 11:23:21,771 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 11:23:21,771 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 11:23:21,772 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:23:20" (3/4) ... [2024-11-02 11:23:21,775 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 11:23:21,777 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 11:23:21,778 INFO L158 Benchmark]: Toolchain (without parser) took 2273.16ms. Allocated memory is still 157.3MB. Free memory was 123.2MB in the beginning and 110.1MB in the end (delta: 13.1MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2024-11-02 11:23:21,779 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 113.2MB. Free memory was 82.1MB in the beginning and 82.1MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:23:21,781 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.32ms. Allocated memory is still 157.3MB. Free memory was 123.2MB in the beginning and 108.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-02 11:23:21,782 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.66ms. Allocated memory is still 157.3MB. Free memory was 108.5MB in the beginning and 105.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 11:23:21,783 INFO L158 Benchmark]: Boogie Preprocessor took 36.22ms. Allocated memory is still 157.3MB. Free memory was 105.6MB in the beginning and 104.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 11:23:21,784 INFO L158 Benchmark]: RCFGBuilder took 587.19ms. Allocated memory is still 157.3MB. Free memory was 104.3MB in the beginning and 78.3MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-02 11:23:21,786 INFO L158 Benchmark]: TraceAbstraction took 1208.67ms. Allocated memory is still 157.3MB. Free memory was 77.9MB in the beginning and 111.2MB in the end (delta: -33.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:23:21,787 INFO L158 Benchmark]: Witness Printer took 8.18ms. Allocated memory is still 157.3MB. Free memory was 111.2MB in the beginning and 110.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:23:21,790 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 113.2MB. Free memory was 82.1MB in the beginning and 82.1MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.32ms. Allocated memory is still 157.3MB. Free memory was 123.2MB in the beginning and 108.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.66ms. Allocated memory is still 157.3MB. Free memory was 108.5MB in the beginning and 105.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.22ms. Allocated memory is still 157.3MB. Free memory was 105.6MB in the beginning and 104.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 587.19ms. Allocated memory is still 157.3MB. Free memory was 104.3MB in the beginning and 78.3MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1208.67ms. Allocated memory is still 157.3MB. Free memory was 77.9MB in the beginning and 111.2MB in the end (delta: -33.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.18ms. Allocated memory is still 157.3MB. Free memory was 111.2MB in the beginning and 110.1MB in the end (delta: 1.0MB). 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 90, overapproximation of someUnaryDOUBLEoperation at line 31, overapproximation of someBinaryArithmeticDOUBLEoperation at line 52. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_2 = 5; [L24] unsigned char var_1_3 = 4; [L25] signed long int var_1_4 = -256; [L26] unsigned char var_1_5 = 0; [L27] unsigned char var_1_6 = 1; [L28] unsigned char var_1_7 = 0; [L29] unsigned char var_1_8 = 0; [L30] double var_1_9 = 9.5; [L31] double var_1_10 = -0.4; [L32] double var_1_11 = 31.5; [L33] double var_1_12 = 16.25; [L34] double var_1_13 = 127.5; [L35] double var_1_14 = 100000.5; [L94] isInitial = 1 [L95] FCALL initially() [L96] int k_loop; [L97] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_2=5, var_1_3=4, var_1_4=-256, var_1_5=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L97] COND TRUE k_loop < 1 [L98] FCALL updateLastVariables() [L99] CALL updateVariables() [L56] var_1_2 = __VERIFIER_nondet_uchar() [L57] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=4, var_1_4=-256, var_1_5=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L20] COND FALSE !(!cond) [L57] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=4, var_1_4=-256, var_1_5=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L58] CALL assume_abort_if_not(var_1_2 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=4, var_1_4=-256, var_1_5=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L20] COND FALSE !(!cond) [L58] RET assume_abort_if_not(var_1_2 <= 255) VAL [isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=4, var_1_4=-256, var_1_5=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L59] var_1_3 = __VERIFIER_nondet_uchar() [L60] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_4=-256, var_1_5=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L20] COND FALSE !(!cond) [L60] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_4=-256, var_1_5=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L61] CALL assume_abort_if_not(var_1_3 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_4=-256, var_1_5=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not(var_1_3 <= 255) VAL [isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_4=-256, var_1_5=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L62] CALL assume_abort_if_not(var_1_3 != 0) VAL [\old(cond)=1, isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=-256, var_1_5=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_3 != 0) VAL [isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=-256, var_1_5=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L63] var_1_4 = __VERIFIER_nondet_long() [L64] CALL assume_abort_if_not(var_1_4 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_4 >= -2147483648) VAL [isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L65] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L66] var_1_5 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_5 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_5 >= 1) VAL [isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L68] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L69] var_1_6 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_6 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_6 >= 1) VAL [isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L71] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L72] var_1_7 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_8=0, var_1_9=19/2] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_8=0, var_1_9=19/2] [L74] CALL assume_abort_if_not(var_1_7 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_7 <= 0) VAL [isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L75] var_1_8 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_9=19/2] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_9=19/2] [L77] CALL assume_abort_if_not(var_1_8 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_8 <= 0) VAL [isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L78] var_1_10 = __VERIFIER_nondet_double() [L79] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=63/2, var_1_12=65/4, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L80] var_1_12 = __VERIFIER_nondet_double() [L81] CALL assume_abort_if_not((var_1_12 >= -461168.6018427382800e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=63/2, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not((var_1_12 >= -461168.6018427382800e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=63/2, var_1_13=255/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L82] var_1_13 = __VERIFIER_nondet_double() [L83] CALL assume_abort_if_not((var_1_13 >= -461168.6018427382800e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=63/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not((var_1_13 >= -461168.6018427382800e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=63/2, var_1_14=200001/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L84] var_1_14 = __VERIFIER_nondet_double() [L85] CALL assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=63/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=63/2, var_1_1=0, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=19/2] [L99] RET updateVariables() [L100] CALL step() [L39] COND TRUE (var_1_2 / var_1_3) >= var_1_4 [L40] var_1_1 = (var_1_5 && var_1_6) [L44] unsigned char stepLocal_0 = (var_1_6 && var_1_8) || (var_1_2 >= 5); [L45] COND TRUE stepLocal_0 && (var_1_3 < var_1_4) [L46] var_1_9 = var_1_10 [L50] unsigned char stepLocal_1 = var_1_6; [L51] COND TRUE (((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) > ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2)))) || stepLocal_1 [L52] var_1_11 = (((((var_1_12) < (var_1_13)) ? (var_1_12) : (var_1_13))) + var_1_14) [L100] RET step() [L101] CALL, EXPR property() [L90-L91] return ((((var_1_2 / var_1_3) >= var_1_4) ? (var_1_1 == ((unsigned char) (var_1_5 && var_1_6))) : (var_1_1 == ((unsigned char) ((var_1_3 >= var_1_2) && (var_1_7 || var_1_8))))) && ((((var_1_6 && var_1_8) || (var_1_2 >= 5)) && (var_1_3 < var_1_4)) ? (var_1_9 == ((double) var_1_10)) : (var_1_9 == ((double) var_1_10)))) && (((((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))) > ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2)))) || var_1_6) ? (var_1_11 == ((double) (((((var_1_12) < (var_1_13)) ? (var_1_12) : (var_1_13))) + var_1_14))) : 1) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=2, var_1_11=0, var_1_1=1, var_1_2=5, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=2] [L19] reach_error() VAL [isInitial=1, var_1_10=2, var_1_11=0, var_1_1=1, var_1_2=5, var_1_3=1, var_1_4=2, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 19, 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=39occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-02 11:23:21,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/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_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-89.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2 --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 3047be65ea0fc5640e4cd865efbd9906b9eaeb4a8d01185b0a8bdb2377eb8eb2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:23:24,342 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:23:24,441 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-02 11:23:24,446 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:23:24,447 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:23:24,496 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:23:24,498 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:23:24,499 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:23:24,500 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:23:24,501 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:23:24,501 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:23:24,502 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:23:24,502 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:23:24,503 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:23:24,505 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:23:24,506 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:23:24,507 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:23:24,507 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:23:24,507 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:23:24,508 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:23:24,508 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:23:24,512 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:23:24,512 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:23:24,513 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:23:24,513 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 11:23:24,513 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 11:23:24,513 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:23:24,514 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 11:23:24,514 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:23:24,514 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:23:24,515 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:23:24,515 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:23:24,515 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 11:23:24,518 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:23:24,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:23:24,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:23:24,519 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:23:24,519 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:23:24,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:23:24,520 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 11:23:24,521 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 11:23:24,521 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:23:24,522 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:23:24,522 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:23:24,523 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3047be65ea0fc5640e4cd865efbd9906b9eaeb4a8d01185b0a8bdb2377eb8eb2 [2024-11-02 11:23:24,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:23:24,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:23:24,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:23:24,986 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:23:24,987 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:23:24,988 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-89.i Unable to find full path for "g++" [2024-11-02 11:23:27,066 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:23:27,294 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:23:27,294 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-89.i [2024-11-02 11:23:27,303 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/data/5cdc0074d/fbee22f899ad4270aae4e292d890006c/FLAG0373bb045 [2024-11-02 11:23:27,316 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/data/5cdc0074d/fbee22f899ad4270aae4e292d890006c [2024-11-02 11:23:27,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:23:27,320 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:23:27,321 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:23:27,321 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:23:27,326 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:23:27,326 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:23:27" (1/1) ... [2024-11-02 11:23:27,328 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fe3f7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:27, skipping insertion in model container [2024-11-02 11:23:27,328 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:23:27" (1/1) ... [2024-11-02 11:23:27,354 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:23:27,597 WARN L251 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_736171cd-605e-4835-8042-b78526bb2bb5/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-89.i[915,928] [2024-11-02 11:23:27,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:23:27,682 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:23:27,697 WARN L251 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_736171cd-605e-4835-8042-b78526bb2bb5/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-89.i[915,928] [2024-11-02 11:23:27,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:23:27,767 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:23:27,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:27 WrapperNode [2024-11-02 11:23:27,768 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:23:27,769 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:23:27,769 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:23:27,769 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:23:27,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:27" (1/1) ... [2024-11-02 11:23:27,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:27" (1/1) ... [2024-11-02 11:23:27,873 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 115 [2024-11-02 11:23:27,874 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:23:27,876 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:23:27,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:23:27,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:23:27,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:27" (1/1) ... [2024-11-02 11:23:27,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:27" (1/1) ... [2024-11-02 11:23:27,916 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:27" (1/1) ... [2024-11-02 11:23:27,920 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:27" (1/1) ... [2024-11-02 11:23:27,932 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:27" (1/1) ... [2024-11-02 11:23:27,937 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:27" (1/1) ... [2024-11-02 11:23:27,939 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:27" (1/1) ... [2024-11-02 11:23:27,941 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:27" (1/1) ... [2024-11-02 11:23:27,944 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:23:27,945 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:23:27,945 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:23:27,945 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:23:27,946 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:27" (1/1) ... [2024-11-02 11:23:27,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:23:27,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:23:27,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:23:27,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:23:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:23:28,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 11:23:28,025 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 11:23:28,025 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 11:23:28,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:23:28,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:23:28,129 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:23:28,133 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:23:28,908 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-02 11:23:28,909 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:23:28,922 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:23:28,923 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 11:23:28,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:23:28 BoogieIcfgContainer [2024-11-02 11:23:28,923 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:23:28,926 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:23:28,926 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:23:28,930 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:23:28,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:23:27" (1/3) ... [2024-11-02 11:23:28,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9af6b39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:23:28, skipping insertion in model container [2024-11-02 11:23:28,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:27" (2/3) ... [2024-11-02 11:23:28,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9af6b39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:23:28, skipping insertion in model container [2024-11-02 11:23:28,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:23:28" (3/3) ... [2024-11-02 11:23:28,934 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-89.i [2024-11-02 11:23:28,954 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:23:28,954 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 11:23:29,050 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:23:29,061 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;@2fb36d9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:23:29,061 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 11:23:29,066 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 34 states have internal predecessors, (41), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-02 11:23:29,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-02 11:23:29,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:29,085 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:23:29,086 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:23:29,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:29,094 INFO L85 PathProgramCache]: Analyzing trace with hash 954961930, now seen corresponding path program 1 times [2024-11-02 11:23:29,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 11:23:29,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620770844] [2024-11-02 11:23:29,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:29,114 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 [2024-11-02 11:23:29,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 11:23:29,118 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 11:23:29,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:23:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:29,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 11:23:29,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:23:29,529 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-11-02 11:23:29,529 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 11:23:29,530 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 11:23:29,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620770844] [2024-11-02 11:23:29,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620770844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:23:29,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:23:29,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:23:29,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741522410] [2024-11-02 11:23:29,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:23:29,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 11:23:29,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 11:23:29,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 11:23:29,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 11:23:29,591 INFO L87 Difference]: Start difference. First operand has 55 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 34 states have internal predecessors, (41), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-02 11:23:29,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:23:29,631 INFO L93 Difference]: Finished difference Result 107 states and 174 transitions. [2024-11-02 11:23:29,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 11:23:29,635 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 120 [2024-11-02 11:23:29,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:23:29,661 INFO L225 Difference]: With dead ends: 107 [2024-11-02 11:23:29,661 INFO L226 Difference]: Without dead ends: 51 [2024-11-02 11:23:29,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 11:23:29,670 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 11:23:29,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 11:23:29,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-02 11:23:29,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-02 11:23:29,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 30 states have internal predecessors, (34), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-02 11:23:29,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 72 transitions. [2024-11-02 11:23:29,731 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 72 transitions. Word has length 120 [2024-11-02 11:23:29,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:23:29,731 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 72 transitions. [2024-11-02 11:23:29,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-02 11:23:29,735 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 72 transitions. [2024-11-02 11:23:29,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-02 11:23:29,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:29,741 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:23:29,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:23:29,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:23:29,942 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:23:29,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:29,943 INFO L85 PathProgramCache]: Analyzing trace with hash -890567920, now seen corresponding path program 1 times [2024-11-02 11:23:29,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 11:23:29,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [192238553] [2024-11-02 11:23:29,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:29,945 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 [2024-11-02 11:23:29,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 11:23:29,948 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 11:23:29,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:23:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:30,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-02 11:23:30,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:23:31,083 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-02 11:23:31,083 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:23:31,497 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 27 proven. 27 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-02 11:23:31,497 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 11:23:31,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [192238553] [2024-11-02 11:23:31,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [192238553] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 11:23:31,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1510330038] [2024-11-02 11:23:31,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:31,499 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-02 11:23:31,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/cvc4 [2024-11-02 11:23:31,502 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-02 11:23:31,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-02 11:23:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:32,235 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-02 11:23:32,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:23:32,496 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 360 proven. 27 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2024-11-02 11:23:32,496 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:23:32,805 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 27 proven. 27 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-02 11:23:32,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1510330038] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 11:23:32,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100393398] [2024-11-02 11:23:32,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:32,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:23:32,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:23:32,810 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:23:32,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 11:23:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:33,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 11:23:33,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:23:33,276 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 360 proven. 27 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2024-11-02 11:23:33,277 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:23:33,550 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 27 proven. 27 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-02 11:23:33,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100393398] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 11:23:33,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-02 11:23:33,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6, 6, 6, 6] total 12 [2024-11-02 11:23:33,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474614294] [2024-11-02 11:23:33,552 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-02 11:23:33,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-02 11:23:33,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 11:23:33,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-02 11:23:33,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-02 11:23:33,556 INFO L87 Difference]: Start difference. First operand 51 states and 72 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (36), 3 states have call predecessors, (36), 6 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-02 11:23:35,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:23:35,043 INFO L93 Difference]: Finished difference Result 109 states and 149 transitions. [2024-11-02 11:23:35,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-02 11:23:35,050 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (36), 3 states have call predecessors, (36), 6 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 120 [2024-11-02 11:23:35,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:23:35,053 INFO L225 Difference]: With dead ends: 109 [2024-11-02 11:23:35,053 INFO L226 Difference]: Without dead ends: 61 [2024-11-02 11:23:35,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 718 GetRequests, 699 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2024-11-02 11:23:35,055 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 47 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-02 11:23:35,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 143 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-02 11:23:35,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-02 11:23:35,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2024-11-02 11:23:35,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 36 states have internal predecessors, (39), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-02 11:23:35,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 77 transitions. [2024-11-02 11:23:35,070 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 77 transitions. Word has length 120 [2024-11-02 11:23:35,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:23:35,071 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 77 transitions. [2024-11-02 11:23:35,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (36), 3 states have call predecessors, (36), 6 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-02 11:23:35,071 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 77 transitions. [2024-11-02 11:23:35,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-02 11:23:35,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:35,073 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:23:35,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/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)] Ended with exit code 0 [2024-11-02 11:23:35,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-02 11:23:35,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-02 11:23:35,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:23:35,683 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:23:35,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:35,684 INFO L85 PathProgramCache]: Analyzing trace with hash -892414962, now seen corresponding path program 1 times [2024-11-02 11:23:35,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 11:23:35,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1101630735] [2024-11-02 11:23:35,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:35,685 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 [2024-11-02 11:23:35,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 11:23:35,693 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 11:23:35,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_736171cd-605e-4835-8042-b78526bb2bb5/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-02 11:23:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:23:36,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-02 11:23:36,076 INFO L278 TraceCheckSpWp]: Computing forward predicates...