./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-62.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_f60c98f9-8960-4b31-926f-881a76a2c37e/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60c98f9-8960-4b31-926f-881a76a2c37e/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60c98f9-8960-4b31-926f-881a76a2c37e/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60c98f9-8960-4b31-926f-881a76a2c37e/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-62.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60c98f9-8960-4b31-926f-881a76a2c37e/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60c98f9-8960-4b31-926f-881a76a2c37e/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c9ea8f5132fafef47c5cde74633ce85a3773c3d65cff180ef26fe244a046ff77 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 20:57:05,700 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 20:57:05,822 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60c98f9-8960-4b31-926f-881a76a2c37e/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 20:57:05,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 20:57:05,830 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 20:57:05,870 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 20:57:05,871 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 20:57:05,871 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 20:57:05,872 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 20:57:05,877 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 20:57:05,878 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 20:57:05,878 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 20:57:05,879 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 20:57:05,881 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 20:57:05,881 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 20:57:05,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 20:57:05,882 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 20:57:05,883 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 20:57:05,883 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 20:57:05,883 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 20:57:05,885 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 20:57:05,886 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 20:57:05,886 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 20:57:05,887 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 20:57:05,887 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 20:57:05,888 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 20:57:05,888 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 20:57:05,889 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 20:57:05,890 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 20:57:05,890 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 20:57:05,891 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 20:57:05,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:57:05,892 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 20:57:05,892 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 20:57:05,893 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 20:57:05,893 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 20:57:05,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 20:57:05,893 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 20:57:05,893 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 20:57:05,894 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 20:57:05,894 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 20:57:05,894 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 20:57:05,895 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f60c98f9-8960-4b31-926f-881a76a2c37e/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60c98f9-8960-4b31-926f-881a76a2c37e/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9ea8f5132fafef47c5cde74633ce85a3773c3d65cff180ef26fe244a046ff77 [2023-11-21 20:57:06,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 20:57:06,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 20:57:06,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 20:57:06,223 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 20:57:06,223 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 20:57:06,225 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60c98f9-8960-4b31-926f-881a76a2c37e/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-62.i [2023-11-21 20:57:09,262 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 20:57:09,506 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 20:57:09,507 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60c98f9-8960-4b31-926f-881a76a2c37e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-62.i [2023-11-21 20:57:09,518 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60c98f9-8960-4b31-926f-881a76a2c37e/bin/uautomizer-verify-bycVGegfSx/data/48f00edb6/e7ec79306aab468c94b7fcce9216832c/FLAGa4040f3a9 [2023-11-21 20:57:09,535 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60c98f9-8960-4b31-926f-881a76a2c37e/bin/uautomizer-verify-bycVGegfSx/data/48f00edb6/e7ec79306aab468c94b7fcce9216832c [2023-11-21 20:57:09,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 20:57:09,540 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 20:57:09,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 20:57:09,542 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 20:57:09,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 20:57:09,550 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:57:09" (1/1) ... [2023-11-21 20:57:09,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26aef130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:09, skipping insertion in model container [2023-11-21 20:57:09,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:57:09" (1/1) ... [2023-11-21 20:57:09,606 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 20:57:09,802 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_f60c98f9-8960-4b31-926f-881a76a2c37e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-62.i[917,930] [2023-11-21 20:57:09,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:57:09,952 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 20:57:09,971 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_f60c98f9-8960-4b31-926f-881a76a2c37e/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-62.i[917,930] [2023-11-21 20:57:10,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:57:10,074 INFO L206 MainTranslator]: Completed translation [2023-11-21 20:57:10,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:10 WrapperNode [2023-11-21 20:57:10,076 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 20:57:10,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 20:57:10,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 20:57:10,081 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 20:57:10,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:10" (1/1) ... [2023-11-21 20:57:10,121 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:10" (1/1) ... [2023-11-21 20:57:10,183 INFO L138 Inliner]: procedures = 26, calls = 111, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 297 [2023-11-21 20:57:10,185 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 20:57:10,186 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 20:57:10,186 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 20:57:10,187 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 20:57:10,200 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:10" (1/1) ... [2023-11-21 20:57:10,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:10" (1/1) ... [2023-11-21 20:57:10,205 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:10" (1/1) ... [2023-11-21 20:57:10,224 INFO L187 HeapSplitter]: Split 87 memory accesses to 6 slices as follows [2, 10, 29, 26, 4, 16] [2023-11-21 20:57:10,224 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:10" (1/1) ... [2023-11-21 20:57:10,225 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:10" (1/1) ... [2023-11-21 20:57:10,239 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:10" (1/1) ... [2023-11-21 20:57:10,253 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:10" (1/1) ... [2023-11-21 20:57:10,256 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:10" (1/1) ... [2023-11-21 20:57:10,259 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:10" (1/1) ... [2023-11-21 20:57:10,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 20:57:10,265 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 20:57:10,266 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 20:57:10,266 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 20:57:10,267 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:10" (1/1) ... [2023-11-21 20:57:10,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:57:10,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60c98f9-8960-4b31-926f-881a76a2c37e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:57:10,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60c98f9-8960-4b31-926f-881a76a2c37e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 20:57:10,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60c98f9-8960-4b31-926f-881a76a2c37e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 20:57:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 20:57:10,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 20:57:10,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 20:57:10,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 20:57:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 20:57:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 20:57:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-21 20:57:10,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 20:57:10,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 20:57:10,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 20:57:10,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 20:57:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 20:57:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-21 20:57:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 20:57:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 20:57:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 20:57:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 20:57:10,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 20:57:10,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 20:57:10,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 20:57:10,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-21 20:57:10,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 20:57:10,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 20:57:10,554 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 20:57:10,558 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 20:57:11,054 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 20:57:11,885 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 20:57:11,885 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 20:57:11,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:57:11 BoogieIcfgContainer [2023-11-21 20:57:11,888 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 20:57:11,892 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 20:57:11,892 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 20:57:11,895 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 20:57:11,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:57:09" (1/3) ... [2023-11-21 20:57:11,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e40818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:57:11, skipping insertion in model container [2023-11-21 20:57:11,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:57:10" (2/3) ... [2023-11-21 20:57:11,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e40818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:57:11, skipping insertion in model container [2023-11-21 20:57:11,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:57:11" (3/3) ... [2023-11-21 20:57:11,901 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-62.i [2023-11-21 20:57:11,922 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 20:57:11,923 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 20:57:11,985 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 20:57:11,993 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=PETRI_NET, 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;@4f0063ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 20:57:11,993 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 20:57:12,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-21 20:57:12,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-21 20:57:12,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:57:12,012 INFO L195 NwaCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:57:12,013 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:57:12,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:57:12,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1355797469, now seen corresponding path program 1 times [2023-11-21 20:57:12,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:57:12,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275490887] [2023-11-21 20:57:12,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:12,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:57:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:28,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 20:57:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:28,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 20:57:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:28,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-21 20:57:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:28,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 20:57:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:28,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 20:57:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:28,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-21 20:57:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:28,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-21 20:57:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:28,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-21 20:57:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:28,678 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-21 20:57:28,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:57:28,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275490887] [2023-11-21 20:57:28,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275490887] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:57:28,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023739772] [2023-11-21 20:57:28,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:57:28,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:57:28,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60c98f9-8960-4b31-926f-881a76a2c37e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:57:28,685 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60c98f9-8960-4b31-926f-881a76a2c37e/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:57:28,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60c98f9-8960-4b31-926f-881a76a2c37e/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 20:57:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:57:29,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 98 conjunts are in the unsatisfiable core [2023-11-21 20:57:29,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:57:29,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-21 20:57:31,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-21 20:57:32,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-21 20:57:36,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1114 treesize of output 1086 [2023-11-21 20:57:36,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 20:57:36,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 80 [2023-11-21 20:57:37,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 160 [2023-11-21 20:57:37,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 20:57:37,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 20:57:37,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 20:57:37,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 20:57:37,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 162 [2023-11-21 20:57:39,001 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-21 20:57:39,002 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 20:57:42,213 INFO L349 Elim1Store]: treesize reduction 108, result has 49.8 percent of original size [2023-11-21 20:57:42,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 328 treesize of output 376