./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-87.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_985c2ba2-406e-47f3-8a30-60cfde9083e0/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985c2ba2-406e-47f3-8a30-60cfde9083e0/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985c2ba2-406e-47f3-8a30-60cfde9083e0/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985c2ba2-406e-47f3-8a30-60cfde9083e0/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-87.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985c2ba2-406e-47f3-8a30-60cfde9083e0/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985c2ba2-406e-47f3-8a30-60cfde9083e0/bin/utaipan-verify-NcY6lQBIFX --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 d77ef1cde99f31e501c7f2ed1a61629f500b31c9ca09ddc7e86fabeb2ad18e8e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:08:00,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:08:01,034 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985c2ba2-406e-47f3-8a30-60cfde9083e0/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:08:01,048 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:08:01,049 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:08:01,075 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:08:01,076 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:08:01,077 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:08:01,078 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:08:01,078 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:08:01,079 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:08:01,079 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:08:01,080 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:08:01,080 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:08:01,081 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:08:01,081 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:08:01,082 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:08:01,082 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:08:01,083 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:08:01,083 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:08:01,084 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:08:01,085 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:08:01,085 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:08:01,086 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:08:01,086 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:08:01,087 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:08:01,087 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:08:01,087 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:08:01,088 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:08:01,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:08:01,089 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:08:01,089 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:08:01,089 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:08:01,089 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:08:01,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:08:01,090 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:08:01,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:08:01,091 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:08:01,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:08:01,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:08:01,091 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:08:01,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:08:01,092 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:08:01,092 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:08:01,092 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:08:01,093 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_985c2ba2-406e-47f3-8a30-60cfde9083e0/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985c2ba2-406e-47f3-8a30-60cfde9083e0/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d77ef1cde99f31e501c7f2ed1a61629f500b31c9ca09ddc7e86fabeb2ad18e8e [2023-11-12 00:08:01,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:08:01,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:08:01,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:08:01,450 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:08:01,451 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:08:01,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985c2ba2-406e-47f3-8a30-60cfde9083e0/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-87.i [2023-11-12 00:08:04,458 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:08:04,753 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:08:04,754 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985c2ba2-406e-47f3-8a30-60cfde9083e0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-87.i [2023-11-12 00:08:04,774 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985c2ba2-406e-47f3-8a30-60cfde9083e0/bin/utaipan-verify-NcY6lQBIFX/data/5bfde7ab3/d82af3965fdf47a899f56a83832dac02/FLAG1a778df39 [2023-11-12 00:08:04,803 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985c2ba2-406e-47f3-8a30-60cfde9083e0/bin/utaipan-verify-NcY6lQBIFX/data/5bfde7ab3/d82af3965fdf47a899f56a83832dac02 [2023-11-12 00:08:04,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:08:04,817 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:08:04,819 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:08:04,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:08:04,825 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:08:04,826 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:04" (1/1) ... [2023-11-12 00:08:04,827 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f58a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:04, skipping insertion in model container [2023-11-12 00:08:04,828 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:04" (1/1) ... [2023-11-12 00:08:04,862 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:08:05,073 WARN L240 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_985c2ba2-406e-47f3-8a30-60cfde9083e0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-87.i[916,929] [2023-11-12 00:08:05,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:08:05,202 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:08:05,224 WARN L240 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_985c2ba2-406e-47f3-8a30-60cfde9083e0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-87.i[916,929] [2023-11-12 00:08:05,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:08:05,285 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:08:05,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:05 WrapperNode [2023-11-12 00:08:05,286 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:08:05,287 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:08:05,288 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:08:05,288 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:08:05,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:05" (1/1) ... [2023-11-12 00:08:05,315 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:05" (1/1) ... [2023-11-12 00:08:05,366 INFO L138 Inliner]: procedures = 26, calls = 148, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 359 [2023-11-12 00:08:05,367 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:08:05,368 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:08:05,368 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:08:05,368 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:08:05,378 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:05" (1/1) ... [2023-11-12 00:08:05,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:05" (1/1) ... [2023-11-12 00:08:05,387 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:05" (1/1) ... [2023-11-12 00:08:05,387 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:05" (1/1) ... [2023-11-12 00:08:05,408 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:05" (1/1) ... [2023-11-12 00:08:05,412 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:05" (1/1) ... [2023-11-12 00:08:05,415 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:05" (1/1) ... [2023-11-12 00:08:05,418 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:05" (1/1) ... [2023-11-12 00:08:05,423 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:08:05,424 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:08:05,424 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:08:05,424 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:08:05,425 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:05" (1/1) ... [2023-11-12 00:08:05,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:08:05,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985c2ba2-406e-47f3-8a30-60cfde9083e0/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:08:05,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985c2ba2-406e-47f3-8a30-60cfde9083e0/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:08:05,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985c2ba2-406e-47f3-8a30-60cfde9083e0/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:08:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:08:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:08:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:08:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:08:05,517 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:08:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:08:05,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:08:05,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:08:05,628 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:08:05,630 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:08:06,122 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:08:06,856 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:08:06,856 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:08:06,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:08:06 BoogieIcfgContainer [2023-11-12 00:08:06,859 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:08:06,864 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:08:06,865 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:08:06,868 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:08:06,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:08:04" (1/3) ... [2023-11-12 00:08:06,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e960a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:08:06, skipping insertion in model container [2023-11-12 00:08:06,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:05" (2/3) ... [2023-11-12 00:08:06,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e960a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:08:06, skipping insertion in model container [2023-11-12 00:08:06,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:08:06" (3/3) ... [2023-11-12 00:08:06,874 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-87.i [2023-11-12 00:08:06,895 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:08:06,896 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:08:06,945 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:08:06,952 INFO L357 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, mHoare=true, 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;@762c7728, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:08:06,952 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:08:06,955 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-12 00:08:06,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-12 00:08:06,965 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:08:06,966 INFO L195 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:08:06,966 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:08:06,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:08:06,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1836746631, now seen corresponding path program 1 times [2023-11-12 00:08:06,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:08:06,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037024268] [2023-11-12 00:08:06,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:08:06,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:08:07,256 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:08:07,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [799127985] [2023-11-12 00:08:07,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:08:07,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:08:07,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985c2ba2-406e-47f3-8a30-60cfde9083e0/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:08:07,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985c2ba2-406e-47f3-8a30-60cfde9083e0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:08:07,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_985c2ba2-406e-47f3-8a30-60cfde9083e0/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:08:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:08:09,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 79 conjunts are in the unsatisfiable core [2023-11-12 00:08:09,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:08:09,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:09,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:09,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:09,392 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2023-11-12 00:08:10,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:10,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:10,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:10,007 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 32 [2023-11-12 00:08:10,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:10,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:10,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:10,303 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2023-11-12 00:08:10,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:10,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:10,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:10,560 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2023-11-12 00:08:10,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:10,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:10,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:10,843 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2023-11-12 00:08:11,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:11,092 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2023-11-12 00:08:11,103 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-12 00:08:11,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:11,493 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 29 [2023-11-12 00:08:15,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:15,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:15,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:15,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:15,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:15,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:15,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:15,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:15,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:15,907 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 304 treesize of output 215 [2023-11-12 00:08:26,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:26,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:26,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:26,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:26,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:26,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:26,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:26,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:26,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:26,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:26,311 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 335 treesize of output 262 [2023-11-12 00:08:26,590 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 43 [2023-11-12 00:08:26,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:26,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:26,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:26,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:26,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:08:26,667 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 257 [2023-11-12 00:08:26,750 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 163 [2023-11-12 00:08:27,139 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-11-12 00:08:27,665 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2023-11-12 00:08:30,141 INFO L217 Elim1Store]: Index analysis took 777 ms [2023-11-12 00:08:30,143 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 72 [2023-11-12 00:08:30,979 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 6 proven. 116 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-12 00:08:30,979 INFO L327 TraceCheckSpWp]: Computing backward predicates...