./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.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_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/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_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/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_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/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 705f1434cf57fe07ebfc06c0b1211b5e86887658700ddfe642f1846035ec4c01 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:21:22,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:21:22,313 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 11:21:22,317 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:21:22,318 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:21:22,339 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:21:22,339 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:21:22,340 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:21:22,340 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:21:22,341 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:21:22,341 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:21:22,341 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:21:22,342 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:21:22,342 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:21:22,343 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:21:22,343 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:21:22,343 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:21:22,344 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:21:22,344 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:21:22,345 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:21:22,345 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:21:22,349 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:21:22,350 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:21:22,350 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:21:22,350 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:21:22,350 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:21:22,351 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:21:22,351 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:21:22,351 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:21:22,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:21:22,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:21:22,352 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:21:22,352 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:21:22,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:21:22,353 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:21:22,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:21:22,353 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:21:22,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:21:22,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:21:22,354 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:21:22,354 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:21:22,358 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:21:22,358 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:21:22,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:21:22,358 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:21:22,358 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:21:22,359 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:21:22,359 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_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 705f1434cf57fe07ebfc06c0b1211b5e86887658700ddfe642f1846035ec4c01 [2024-11-02 11:21:22,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:21:22,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:21:22,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:21:22,647 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:21:22,647 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:21:22,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i Unable to find full path for "g++" [2024-11-02 11:21:25,125 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:21:25,333 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:21:25,334 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i [2024-11-02 11:21:25,344 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/data/0a38d0ed5/9bab8c1411864bc8a5b7d89e25c869d3/FLAG4ea460467 [2024-11-02 11:21:25,360 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/data/0a38d0ed5/9bab8c1411864bc8a5b7d89e25c869d3 [2024-11-02 11:21:25,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:21:25,364 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:21:25,365 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:21:25,365 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:21:25,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:21:25,374 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:21:25" (1/1) ... [2024-11-02 11:21:25,375 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d5cfc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:25, skipping insertion in model container [2024-11-02 11:21:25,375 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:21:25" (1/1) ... [2024-11-02 11:21:25,414 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:21:25,592 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_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i[913,926] [2024-11-02 11:21:25,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:21:25,662 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:21:25,673 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_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i[913,926] [2024-11-02 11:21:25,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:21:25,724 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:21:25,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:25 WrapperNode [2024-11-02 11:21:25,725 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:21:25,726 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:21:25,727 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:21:25,727 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:21:25,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:25" (1/1) ... [2024-11-02 11:21:25,744 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:25" (1/1) ... [2024-11-02 11:21:25,788 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 127 [2024-11-02 11:21:25,789 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:21:25,790 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:21:25,790 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:21:25,790 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:21:25,802 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:25" (1/1) ... [2024-11-02 11:21:25,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:25" (1/1) ... [2024-11-02 11:21:25,805 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:25" (1/1) ... [2024-11-02 11:21:25,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:25" (1/1) ... [2024-11-02 11:21:25,813 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:25" (1/1) ... [2024-11-02 11:21:25,817 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:25" (1/1) ... [2024-11-02 11:21:25,820 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:25" (1/1) ... [2024-11-02 11:21:25,822 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:25" (1/1) ... [2024-11-02 11:21:25,826 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:21:25,827 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:21:25,827 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:21:25,827 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:21:25,828 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:25" (1/1) ... [2024-11-02 11:21:25,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:21:25,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:21:25,875 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:21:25,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:21:25,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:21:25,911 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 11:21:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 11:21:25,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:21:25,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:21:25,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:21:26,036 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:21:26,041 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:21:26,466 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-02 11:21:26,466 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:21:26,705 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:21:26,708 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 11:21:26,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:21:26 BoogieIcfgContainer [2024-11-02 11:21:26,709 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:21:26,712 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:21:26,712 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:21:26,716 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:21:26,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:21:25" (1/3) ... [2024-11-02 11:21:26,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79736167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:21:26, skipping insertion in model container [2024-11-02 11:21:26,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:25" (2/3) ... [2024-11-02 11:21:26,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79736167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:21:26, skipping insertion in model container [2024-11-02 11:21:26,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:21:26" (3/3) ... [2024-11-02 11:21:26,722 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-37.i [2024-11-02 11:21:26,742 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:21:26,742 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 11:21:26,813 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:21:26,819 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;@1d9d3b41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:21:26,820 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 11:21:26,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-02 11:21:26,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-02 11:21:26,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:21:26,836 INFO L215 NwaCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:21:26,836 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:21:26,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:21:26,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1041377734, now seen corresponding path program 1 times [2024-11-02 11:21:26,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:21:26,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115968696] [2024-11-02 11:21:26,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:26,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:21:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 11:21:27,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [284269766] [2024-11-02 11:21:27,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:27,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:21:27,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:21:27,444 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:21:27,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 11:21:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 11:21:27,641 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 11:21:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 11:21:27,769 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 11:21:27,772 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 11:21:27,774 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 11:21:27,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-02 11:21:27,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-02 11:21:27,983 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 11:21:28,073 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 11:21:28,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:21:28 BoogieIcfgContainer [2024-11-02 11:21:28,082 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 11:21:28,083 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 11:21:28,083 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 11:21:28,083 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 11:21:28,084 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:21:26" (3/4) ... [2024-11-02 11:21:28,086 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 11:21:28,088 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 11:21:28,089 INFO L158 Benchmark]: Toolchain (without parser) took 2724.98ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 97.0MB in the beginning and 131.2MB in the end (delta: -34.2MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2024-11-02 11:21:28,089 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 98.6MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:21:28,090 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.50ms. Allocated memory is still 138.4MB. Free memory was 97.0MB in the beginning and 82.7MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-02 11:21:28,091 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.49ms. Allocated memory is still 138.4MB. Free memory was 82.3MB in the beginning and 79.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 11:21:28,092 INFO L158 Benchmark]: Boogie Preprocessor took 36.33ms. Allocated memory is still 138.4MB. Free memory was 79.4MB in the beginning and 78.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 11:21:28,094 INFO L158 Benchmark]: RCFGBuilder took 882.65ms. Allocated memory is still 138.4MB. Free memory was 77.7MB in the beginning and 75.2MB in the end (delta: 2.5MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2024-11-02 11:21:28,094 INFO L158 Benchmark]: TraceAbstraction took 1370.32ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 74.3MB in the beginning and 131.2MB in the end (delta: -56.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:21:28,096 INFO L158 Benchmark]: Witness Printer took 5.20ms. Allocated memory is still 186.6MB. Free memory is still 131.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:21:28,099 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 98.6MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.50ms. Allocated memory is still 138.4MB. Free memory was 97.0MB in the beginning and 82.7MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.49ms. Allocated memory is still 138.4MB. Free memory was 82.3MB in the beginning and 79.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.33ms. Allocated memory is still 138.4MB. Free memory was 79.4MB in the beginning and 78.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 882.65ms. Allocated memory is still 138.4MB. Free memory was 77.7MB in the beginning and 75.2MB in the end (delta: 2.5MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1370.32ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 74.3MB in the beginning and 131.2MB in the end (delta: -56.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.20ms. Allocated memory is still 186.6MB. Free memory is still 131.2MB. 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 someBinaryFLOATComparisonOperation at line 54, overapproximation of bitwiseOr at line 48. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 8; [L23] unsigned short int var_1_2 = 59049; [L24] unsigned short int var_1_3 = 100; [L25] unsigned char var_1_6 = 16; [L26] signed char var_1_7 = -25; [L27] signed char var_1_8 = 16; [L28] signed char var_1_9 = 25; [L29] signed char var_1_10 = -10; [L30] signed char var_1_11 = 0; [L31] float var_1_12 = 25.1; [L32] unsigned long int var_1_13 = 2531521428; [L33] signed long int var_1_14 = -128; [L34] signed long int var_1_15 = 256; [L35] signed short int var_1_16 = -16; [L94] isInitial = 1 [L95] FCALL initially() [L96] COND TRUE 1 [L97] FCALL updateLastVariables() [L98] CALL updateVariables() [L63] var_1_2 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_2 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_2 >= 32767) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L65] CALL assume_abort_if_not(var_1_2 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_2 <= 65535) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L66] var_1_3 = __VERIFIER_nondet_ushort() [L67] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L68] CALL assume_abort_if_not(var_1_3 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_3 <= 32767) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L69] var_1_6 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_7=-25, var_1_8=16, var_1_9=25] [L71] CALL assume_abort_if_not(var_1_6 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_6 <= 254) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=16, var_1_9=25] [L72] var_1_8 = __VERIFIER_nondet_char() [L73] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L74] CALL assume_abort_if_not(var_1_8 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_8 <= 63) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L75] var_1_9 = __VERIFIER_nondet_char() [L76] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=31] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=31] [L77] CALL assume_abort_if_not(var_1_9 <= 31) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=31] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_9 <= 31) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=31] [L78] var_1_10 = __VERIFIER_nondet_char() [L79] CALL assume_abort_if_not(var_1_10 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=31] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_10 >= -63) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=31] [L80] CALL assume_abort_if_not(var_1_10 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=31] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_10 <= 63) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=31] [L81] var_1_12 = __VERIFIER_nondet_float() [L82] CALL assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=31] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=31] [L83] var_1_13 = __VERIFIER_nondet_ulong() [L84] CALL assume_abort_if_not(var_1_13 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_13=2147483647, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=31] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_13 >= 2147483647) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_13=2147483647, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=31] [L85] CALL assume_abort_if_not(var_1_13 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_13=2147483647, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=31] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_13 <= 4294967295) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_13=2147483647, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=31] [L98] RET updateVariables() [L99] CALL step() [L39] var_1_14 = var_1_8 [L40] var_1_16 = var_1_14 [L41] signed long int stepLocal_0 = (((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)); [L42] COND FALSE !(var_1_2 <= stepLocal_0) [L45] var_1_7 = var_1_10 [L47] var_1_15 = var_1_16 [L48] EXPR (var_1_2 - var_1_3) ^ (var_1_15 * var_1_16) [L48] COND FALSE !(((var_1_2 - var_1_3) ^ (var_1_15 * var_1_16)) <= -64) [L51] var_1_1 = var_1_6 [L53] unsigned char stepLocal_1 = var_1_1; [L54] COND TRUE 2.75f > var_1_12 [L55] var_1_11 = (var_1_10 + var_1_8) [L99] RET step() [L100] CALL, EXPR property() [L90] EXPR (var_1_2 - var_1_3) ^ (var_1_15 * var_1_16) [L90-L91] return ((((((((var_1_2 - var_1_3) ^ (var_1_15 * var_1_16)) <= -64) ? (var_1_1 == ((unsigned char) var_1_6)) : (var_1_1 == ((unsigned char) var_1_6))) && ((var_1_2 <= ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)))) ? (var_1_7 == ((signed char) ((var_1_8 - (1 + var_1_9)) + var_1_10))) : (var_1_7 == ((signed char) var_1_10)))) && ((2.75f > var_1_12) ? (var_1_11 == ((signed char) (var_1_10 + var_1_8))) : (((var_1_13 - ((((var_1_14) > (var_1_8)) ? (var_1_14) : (var_1_8)))) > var_1_1) ? (var_1_11 == ((signed char) ((((((((var_1_8) < ((1 + 5))) ? (var_1_8) : ((1 + 5))))) < (var_1_10)) ? (((((var_1_8) < ((1 + 5))) ? (var_1_8) : ((1 + 5))))) : (var_1_10))))) : 1))) && (var_1_14 == ((signed long int) var_1_8))) && (var_1_15 == ((signed long int) var_1_16))) && (var_1_16 == ((signed short int) var_1_14)) ; [L100] RET, EXPR property() [L100] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=6, var_1_11=12, var_1_13=2147483647, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=0, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=6, var_1_8=6, var_1_9=31] [L19] reach_error() VAL [isInitial=1, var_1_10=6, var_1_11=12, var_1_13=2147483647, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=0, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=6, var_1_8=6, var_1_9=31] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 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 11:21:28,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/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_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/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_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/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_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/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 705f1434cf57fe07ebfc06c0b1211b5e86887658700ddfe642f1846035ec4c01 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:21:31,407 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:21:31,515 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-02 11:21:31,521 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:21:31,521 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:21:31,551 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:21:31,552 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:21:31,553 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:21:31,554 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:21:31,556 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:21:31,557 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:21:31,557 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:21:31,558 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:21:31,561 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:21:31,562 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:21:31,562 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:21:31,563 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:21:31,563 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:21:31,564 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:21:31,564 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:21:31,564 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:21:31,565 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:21:31,565 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:21:31,566 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:21:31,566 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 11:21:31,566 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 11:21:31,567 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:21:31,567 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 11:21:31,567 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:21:31,567 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:21:31,568 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:21:31,568 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:21:31,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 11:21:31,569 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:21:31,570 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:21:31,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:21:31,570 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:21:31,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:21:31,571 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:21:31,572 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 11:21:31,572 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 11:21:31,572 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:21:31,573 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:21:31,573 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:21:31,574 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_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 705f1434cf57fe07ebfc06c0b1211b5e86887658700ddfe642f1846035ec4c01 [2024-11-02 11:21:32,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:21:32,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:21:32,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:21:32,118 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:21:32,119 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:21:32,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i Unable to find full path for "g++" [2024-11-02 11:21:34,667 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:21:34,992 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:21:34,997 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i [2024-11-02 11:21:35,016 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/data/ccfdc81b6/764fbd7d75ab40c2b254eb2ec5a64b96/FLAGc7d20698d [2024-11-02 11:21:35,043 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/data/ccfdc81b6/764fbd7d75ab40c2b254eb2ec5a64b96 [2024-11-02 11:21:35,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:21:35,055 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:21:35,056 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:21:35,057 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:21:35,064 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:21:35,065 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:21:35" (1/1) ... [2024-11-02 11:21:35,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4771efb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:35, skipping insertion in model container [2024-11-02 11:21:35,070 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:21:35" (1/1) ... [2024-11-02 11:21:35,131 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:21:35,587 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_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i[913,926] [2024-11-02 11:21:35,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:21:35,743 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:21:35,772 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_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i[913,926] [2024-11-02 11:21:35,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:21:35,885 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:21:35,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:35 WrapperNode [2024-11-02 11:21:35,890 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:21:35,891 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:21:35,891 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:21:35,892 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:21:35,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:35" (1/1) ... [2024-11-02 11:21:35,930 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:35" (1/1) ... [2024-11-02 11:21:35,991 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 102 [2024-11-02 11:21:35,992 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:21:35,992 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:21:35,997 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:21:35,997 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:21:36,011 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:35" (1/1) ... [2024-11-02 11:21:36,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:35" (1/1) ... [2024-11-02 11:21:36,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:35" (1/1) ... [2024-11-02 11:21:36,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:35" (1/1) ... [2024-11-02 11:21:36,045 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:35" (1/1) ... [2024-11-02 11:21:36,056 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:35" (1/1) ... [2024-11-02 11:21:36,058 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:35" (1/1) ... [2024-11-02 11:21:36,067 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:35" (1/1) ... [2024-11-02 11:21:36,077 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:21:36,078 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:21:36,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:21:36,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:21:36,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:35" (1/1) ... [2024-11-02 11:21:36,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:21:36,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:21:36,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:21:36,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:21:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:21:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 11:21:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 11:21:36,223 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 11:21:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:21:36,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:21:36,326 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:21:36,330 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:21:36,671 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-02 11:21:36,672 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:21:36,684 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:21:36,685 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 11:21:36,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:21:36 BoogieIcfgContainer [2024-11-02 11:21:36,686 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:21:36,688 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:21:36,688 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:21:36,692 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:21:36,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:21:35" (1/3) ... [2024-11-02 11:21:36,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5737f73d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:21:36, skipping insertion in model container [2024-11-02 11:21:36,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:35" (2/3) ... [2024-11-02 11:21:36,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5737f73d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:21:36, skipping insertion in model container [2024-11-02 11:21:36,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:21:36" (3/3) ... [2024-11-02 11:21:36,696 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-37.i [2024-11-02 11:21:36,720 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:21:36,720 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 11:21:36,809 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:21:36,817 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;@22bea115, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:21:36,817 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 11:21:36,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-02 11:21:36,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-02 11:21:36,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:21:36,837 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:21:36,838 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:21:36,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:21:36,846 INFO L85 PathProgramCache]: Analyzing trace with hash 893252525, now seen corresponding path program 1 times [2024-11-02 11:21:36,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 11:21:36,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753932277] [2024-11-02 11:21:36,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:36,867 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 11:21:36,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 11:21:36,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/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 11:21:36,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/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 11:21:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:21:37,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 11:21:37,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:21:37,157 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-02 11:21:37,158 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 11:21:37,159 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 11:21:37,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753932277] [2024-11-02 11:21:37,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753932277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:21:37,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:21:37,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:21:37,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372150719] [2024-11-02 11:21:37,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:21:37,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 11:21:37,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 11:21:37,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 11:21:37,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 11:21:37,203 INFO L87 Difference]: Start difference. First operand has 48 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-02 11:21:37,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:21:37,242 INFO L93 Difference]: Finished difference Result 89 states and 147 transitions. [2024-11-02 11:21:37,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 11:21:37,245 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2024-11-02 11:21:37,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:21:37,255 INFO L225 Difference]: With dead ends: 89 [2024-11-02 11:21:37,255 INFO L226 Difference]: Without dead ends: 44 [2024-11-02 11:21:37,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 96 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 11:21:37,267 INFO L432 NwaCegarLoop]: 62 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, 62 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 11:21:37,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 11:21:37,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-02 11:21:37,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-02 11:21:37,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-02 11:21:37,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 62 transitions. [2024-11-02 11:21:37,321 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 62 transitions. Word has length 97 [2024-11-02 11:21:37,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:21:37,322 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 62 transitions. [2024-11-02 11:21:37,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-02 11:21:37,323 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 62 transitions. [2024-11-02 11:21:37,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-02 11:21:37,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:21:37,330 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:21:37,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/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 11:21:37,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/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 11:21:37,535 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:21:37,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:21:37,536 INFO L85 PathProgramCache]: Analyzing trace with hash -664290645, now seen corresponding path program 1 times [2024-11-02 11:21:37,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 11:21:37,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376973442] [2024-11-02 11:21:37,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:37,539 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 11:21:37,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 11:21:37,544 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/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 11:21:37,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/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 11:21:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:21:37,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-02 11:21:37,894 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:21:38,753 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 200 proven. 63 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-02 11:21:38,755 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:21:39,136 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 11:21:39,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376973442] [2024-11-02 11:21:39,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376973442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:21:39,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1533597201] [2024-11-02 11:21:39,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:39,138 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-02 11:21:39,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/cvc4 [2024-11-02 11:21:39,142 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-02 11:21:39,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-02 11:21:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:21:39,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-02 11:21:39,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:21:40,073 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 200 proven. 63 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-02 11:21:40,073 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:21:40,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1533597201] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:21:40,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432549080] [2024-11-02 11:21:40,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:40,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:21:40,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:21:40,283 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 11:21:40,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 11:21:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:21:40,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-02 11:21:40,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:21:40,816 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 200 proven. 63 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-02 11:21:40,817 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:21:41,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432549080] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:21:41,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 11:21:41,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2024-11-02 11:21:41,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112005324] [2024-11-02 11:21:41,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 11:21:41,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-02 11:21:41,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 11:21:41,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-02 11:21:41,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-02 11:21:41,085 INFO L87 Difference]: Start difference. First operand 44 states and 62 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-02 11:21:41,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:21:41,770 INFO L93 Difference]: Finished difference Result 97 states and 131 transitions. [2024-11-02 11:21:41,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-02 11:21:41,771 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 97 [2024-11-02 11:21:41,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:21:41,774 INFO L225 Difference]: With dead ends: 97 [2024-11-02 11:21:41,775 INFO L226 Difference]: Without dead ends: 56 [2024-11-02 11:21:41,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2024-11-02 11:21:41,778 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 20 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-02 11:21:41,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 132 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-02 11:21:41,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-02 11:21:41,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2024-11-02 11:21:41,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 33 states have (on average 1.121212121212121) internal successors, (37), 33 states have internal predecessors, (37), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-02 11:21:41,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2024-11-02 11:21:41,801 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 97 [2024-11-02 11:21:41,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:21:41,802 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2024-11-02 11:21:41,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-02 11:21:41,803 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2024-11-02 11:21:41,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-02 11:21:41,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:21:41,805 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:21:41,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/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)] Forceful destruction successful, exit code 0 [2024-11-02 11:21:42,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-02 11:21:42,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-02 11:21:42,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/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_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 11:21:42,417 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:21:42,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:21:42,419 INFO L85 PathProgramCache]: Analyzing trace with hash 15767725, now seen corresponding path program 1 times [2024-11-02 11:21:42,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 11:21:42,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [702817284] [2024-11-02 11:21:42,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:42,426 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 11:21:42,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 11:21:42,428 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/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 11:21:42,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/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 11:21:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:21:42,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-02 11:21:42,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:21:44,052 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 222 proven. 102 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-02 11:21:44,053 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 11:21:50,241 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 11:21:50,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [702817284] [2024-11-02 11:21:50,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [702817284] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 11:21:50,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [791367492] [2024-11-02 11:21:50,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:50,242 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-02 11:21:50,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/cvc4 [2024-11-02 11:21:50,253 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-02 11:21:50,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_171dcf27-ad0a-4a79-b1b0-3ffefcab4ee4/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-02 11:21:50,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:21:50,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-02 11:21:50,770 INFO L278 TraceCheckSpWp]: Computing forward predicates...