./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--maps--l440gx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058e759b-93cd-4e40-887b-f6526adb9d62/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058e759b-93cd-4e40-887b-f6526adb9d62/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058e759b-93cd-4e40-887b-f6526adb9d62/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058e759b-93cd-4e40-887b-f6526adb9d62/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--maps--l440gx.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058e759b-93cd-4e40-887b-f6526adb9d62/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058e759b-93cd-4e40-887b-f6526adb9d62/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 00e024fc1f0b82ae7f67f2e1fbd5ae99cfcf89e3f63aef822e2243882f82daf0 .......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:36:44,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:36:44,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:36:44,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:36:44,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:36:44,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:36:44,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:36:45,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:36:45,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:36:45,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:36:45,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:36:45,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:36:45,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:36:45,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:36:45,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:36:45,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:36:45,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:36:45,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:36:45,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:36:45,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:36:45,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:36:45,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:36:45,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:36:45,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:36:45,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:36:45,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:36:45,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:36:45,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:36:45,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:36:45,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:36:45,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:36:45,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:36:45,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:36:45,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:36:45,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:36:45,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:36:45,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:36:45,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:36:45,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:36:45,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:36:45,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:36:45,065 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058e759b-93cd-4e40-887b-f6526adb9d62/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-10-29 04:36:45,113 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:36:45,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:36:45,118 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:36:45,118 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:36:45,119 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:36:45,119 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:36:45,119 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:36:45,119 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:36:45,120 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:36:45,120 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:36:45,121 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:36:45,121 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:36:45,121 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:36:45,122 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:36:45,122 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:36:45,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:36:45,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:36:45,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:36:45,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:36:45,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:36:45,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:36:45,124 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:36:45,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:36:45,125 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:36:45,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:36:45,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:36:45,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:36:45,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:36:45,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:36:45,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:36:45,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:36:45,128 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:36:45,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:36:45,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:36:45,129 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:36:45,129 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:36:45,129 INFO L138 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_058e759b-93cd-4e40-887b-f6526adb9d62/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058e759b-93cd-4e40-887b-f6526adb9d62/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00e024fc1f0b82ae7f67f2e1fbd5ae99cfcf89e3f63aef822e2243882f82daf0 [2021-10-29 04:36:45,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:36:45,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:36:45,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:36:45,431 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:36:45,432 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:36:45,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058e759b-93cd-4e40-887b-f6526adb9d62/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--maps--l440gx.ko-entry_point.cil.out.i [2021-10-29 04:36:45,497 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058e759b-93cd-4e40-887b-f6526adb9d62/bin/utaipan-SDwSMHVbGG/data/2f33c33a1/07e2997f549f4c29a5d1380cd367f226/FLAG3b9a748a9 [2021-10-29 04:36:46,194 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:36:46,194 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058e759b-93cd-4e40-887b-f6526adb9d62/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--maps--l440gx.ko-entry_point.cil.out.i [2021-10-29 04:36:46,232 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058e759b-93cd-4e40-887b-f6526adb9d62/bin/utaipan-SDwSMHVbGG/data/2f33c33a1/07e2997f549f4c29a5d1380cd367f226/FLAG3b9a748a9 [2021-10-29 04:36:46,350 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058e759b-93cd-4e40-887b-f6526adb9d62/bin/utaipan-SDwSMHVbGG/data/2f33c33a1/07e2997f549f4c29a5d1380cd367f226 [2021-10-29 04:36:46,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:36:46,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:36:46,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:36:46,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:36:46,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:36:46,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:36:46" (1/1) ... [2021-10-29 04:36:46,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fcec45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:46, skipping insertion in model container [2021-10-29 04:36:46,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:36:46" (1/1) ... [2021-10-29 04:36:46,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:36:46,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:36:47,059 WARN L228 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_058e759b-93cd-4e40-887b-f6526adb9d62/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--maps--l440gx.ko-entry_point.cil.out.i[87203,87216] [2021-10-29 04:36:47,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:36:47,111 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:36:47,223 WARN L228 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_058e759b-93cd-4e40-887b-f6526adb9d62/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--maps--l440gx.ko-entry_point.cil.out.i[87203,87216] [2021-10-29 04:36:47,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:36:47,255 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:36:47,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:47 WrapperNode [2021-10-29 04:36:47,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:36:47,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:36:47,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:36:47,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:36:47,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:47" (1/1) ... [2021-10-29 04:36:47,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:47" (1/1) ... [2021-10-29 04:36:47,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:36:47,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:36:47,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:36:47,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:36:47,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:47" (1/1) ... [2021-10-29 04:36:47,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:47" (1/1) ... [2021-10-29 04:36:47,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:47" (1/1) ... [2021-10-29 04:36:47,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:47" (1/1) ... [2021-10-29 04:36:47,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:47" (1/1) ... [2021-10-29 04:36:47,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:47" (1/1) ... [2021-10-29 04:36:47,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:47" (1/1) ... [2021-10-29 04:36:47,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:36:47,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:36:47,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:36:47,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:36:47,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:47" (1/1) ... [2021-10-29 04:36:47,496 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:36:47,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058e759b-93cd-4e40-887b-f6526adb9d62/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:36:47,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058e759b-93cd-4e40-887b-f6526adb9d62/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:36:47,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058e759b-93cd-4e40-887b-f6526adb9d62/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:36:47,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-29 04:36:47,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:36:47,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 04:36:47,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-29 04:36:47,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:36:47,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-29 04:36:47,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 04:36:47,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:36:47,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 04:36:47,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:36:47,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:36:50,085 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:36:50,085 INFO L299 CfgBuilder]: Removed 112 assume(true) statements. [2021-10-29 04:36:50,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:36:50 BoogieIcfgContainer [2021-10-29 04:36:50,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:36:50,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:36:50,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:36:50,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:36:50,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:36:46" (1/3) ... [2021-10-29 04:36:50,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7853c735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:36:50, skipping insertion in model container [2021-10-29 04:36:50,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:36:47" (2/3) ... [2021-10-29 04:36:50,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7853c735 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:36:50, skipping insertion in model container [2021-10-29 04:36:50,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:36:50" (3/3) ... [2021-10-29 04:36:50,101 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--mtd--maps--l440gx.ko-entry_point.cil.out.i [2021-10-29 04:36:50,107 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:36:50,107 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 04:36:50,166 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:36:50,174 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 04:36:50,174 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 04:36:50,190 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 23 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:36:50,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 04:36:50,206 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:36:50,207 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:36:50,208 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:36:50,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:36:50,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1397824575, now seen corresponding path program 1 times [2021-10-29 04:36:50,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:36:50,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383538395] [2021-10-29 04:36:50,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:36:50,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:36:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:36:50,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:36:50,522 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:36:50,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383538395] [2021-10-29 04:36:50,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383538395] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:36:50,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:36:50,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:36:50,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316754714] [2021-10-29 04:36:50,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:36:50,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:36:50,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:36:50,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:36:50,550 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 23 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:36:50,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:36:50,615 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2021-10-29 04:36:50,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:36:50,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-29 04:36:50,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:36:50,629 INFO L225 Difference]: With dead ends: 58 [2021-10-29 04:36:50,629 INFO L226 Difference]: Without dead ends: 29 [2021-10-29 04:36:50,632 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:36:50,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-29 04:36:50,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-29 04:36:50,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.5) internal successors, (42), 28 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:36:50,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 42 transitions. [2021-10-29 04:36:50,670 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 42 transitions. Word has length 8 [2021-10-29 04:36:50,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:36:50,670 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 42 transitions. [2021-10-29 04:36:50,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:36:50,671 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 42 transitions. [2021-10-29 04:36:50,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:36:50,672 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:36:50,672 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:36:50,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 04:36:50,673 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:36:50,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:36:50,676 INFO L85 PathProgramCache]: Analyzing trace with hash -88181507, now seen corresponding path program 1 times [2021-10-29 04:36:50,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:36:50,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750411181] [2021-10-29 04:36:50,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:36:50,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:36:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:36:50,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:36:50,855 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:36:50,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750411181] [2021-10-29 04:36:50,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750411181] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:36:50,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:36:50,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:36:50,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938077332] [2021-10-29 04:36:50,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:36:50,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:36:50,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:36:50,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:36:50,859 INFO L87 Difference]: Start difference. First operand 29 states and 42 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:36:50,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:36:50,863 INFO L93 Difference]: Finished difference Result 29 states and 42 transitions. [2021-10-29 04:36:50,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:36:50,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 04:36:50,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:36:50,871 INFO L225 Difference]: With dead ends: 29 [2021-10-29 04:36:50,871 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 04:36:50,872 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:36:50,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 04:36:50,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 04:36:50,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:36:50,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 04:36:50,873 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-10-29 04:36:50,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:36:50,873 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 04:36:50,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:36:50,874 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 04:36:50,874 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:36:50,876 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:36:50,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 04:36:50,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 04:36:50,885 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:36:50,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:36:50,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:36:50,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:36:50,892 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:36:50,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:36:50,899 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:36:50,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:36:50,903 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:36:50,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:36:50,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:36:50,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:36:50,917 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:36:50,917 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:36:50,948 INFO L857 garLoopResultBuilder]: For program point L3041(lines 3041 3072) no Hoare annotation was computed. [2021-10-29 04:36:50,948 INFO L860 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-10-29 04:36:50,948 INFO L853 garLoopResultBuilder]: At program point L2961(lines 2961 2966) the Hoare annotation is: (and (= ~ldv_module_refcounter~0 1) (= ~ldv_state_variable_0~0 1)) [2021-10-29 04:36:50,948 INFO L857 garLoopResultBuilder]: For program point L3044(line 3044) no Hoare annotation was computed. [2021-10-29 04:36:50,949 INFO L853 garLoopResultBuilder]: At program point L3077(lines 3033 3082) the Hoare annotation is: (= ~ldv_module_refcounter~0 1) [2021-10-29 04:36:50,950 INFO L853 garLoopResultBuilder]: At program point L3061(lines 3187 3190) the Hoare annotation is: (= ~ldv_module_refcounter~0 1) [2021-10-29 04:36:50,950 INFO L853 garLoopResultBuilder]: At program point L3045(lines 3045 3050) the Hoare annotation is: (= ~ldv_module_refcounter~0 1) [2021-10-29 04:36:50,950 INFO L853 garLoopResultBuilder]: At program point L3245(lines 2954 2959) the Hoare annotation is: (and (= ~ldv_module_refcounter~0 1) (= ~ldv_state_variable_0~0 1)) [2021-10-29 04:36:50,950 INFO L853 garLoopResultBuilder]: At program point L3014(lines 2942 3016) the Hoare annotation is: (and (= ~ldv_module_refcounter~0 1) (= ~ldv_state_variable_0~0 1)) [2021-10-29 04:36:50,951 INFO L853 garLoopResultBuilder]: At program point L2981(lines 2981 2988) the Hoare annotation is: (and (= ~ldv_module_refcounter~0 1) (= ~ldv_state_variable_0~0 1)) [2021-10-29 04:36:50,951 INFO L860 garLoopResultBuilder]: At program point L2849-1(lines 2848 2851) the Hoare annotation is: true [2021-10-29 04:36:50,951 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 04:36:50,952 INFO L860 garLoopResultBuilder]: At program point L2849(lines 2848 2851) the Hoare annotation is: true [2021-10-29 04:36:50,952 INFO L857 garLoopResultBuilder]: For program point L3067(line 3067) no Hoare annotation was computed. [2021-10-29 04:36:50,952 INFO L857 garLoopResultBuilder]: For program point L3052(line 3052) no Hoare annotation was computed. [2021-10-29 04:36:50,952 INFO L853 garLoopResultBuilder]: At program point L2970(lines 2970 2990) the Hoare annotation is: (and (= ~ldv_module_refcounter~0 1) (= ~ldv_state_variable_0~0 1)) [2021-10-29 04:36:50,953 INFO L853 garLoopResultBuilder]: At program point L2970-2(lines 2970 2990) the Hoare annotation is: (and (= ~ldv_module_refcounter~0 1) (= ~ldv_state_variable_0~0 1)) [2021-10-29 04:36:50,953 INFO L853 garLoopResultBuilder]: At program point L3053(lines 3053 3065) the Hoare annotation is: (= ~ldv_module_refcounter~0 1) [2021-10-29 04:36:50,953 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3089) no Hoare annotation was computed. [2021-10-29 04:36:50,953 INFO L860 garLoopResultBuilder]: At program point L3187(lines 3184 3193) the Hoare annotation is: true [2021-10-29 04:36:50,954 INFO L857 garLoopResultBuilder]: For program point L3088(line 3088) no Hoare annotation was computed. [2021-10-29 04:36:50,954 INFO L857 garLoopResultBuilder]: For program point L3055-2(lines 3053 3064) no Hoare annotation was computed. [2021-10-29 04:36:50,954 INFO L857 garLoopResultBuilder]: For program point L3040(line 3040) no Hoare annotation was computed. [2021-10-29 04:36:50,954 INFO L857 garLoopResultBuilder]: For program point L3074(line 3074) no Hoare annotation was computed. [2021-10-29 04:36:50,957 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 04:36:50,959 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:36:50,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:36:50 BoogieIcfgContainer [2021-10-29 04:36:50,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:36:50,980 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:36:50,980 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:36:50,981 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:36:50,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:36:50" (3/4) ... [2021-10-29 04:36:50,984 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:36:51,017 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 118 nodes and edges [2021-10-29 04:36:51,019 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-29 04:36:51,020 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-29 04:36:51,022 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:36:51,023 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:36:51,132 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058e759b-93cd-4e40-887b-f6526adb9d62/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:36:51,132 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:36:51,134 INFO L168 Benchmark]: Toolchain (without parser) took 4779.12 ms. Allocated memory was 121.6 MB in the beginning and 174.1 MB in the end (delta: 52.4 MB). Free memory was 79.9 MB in the beginning and 73.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 58.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:36:51,135 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 121.6 MB. Free memory is still 101.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:36:51,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 899.65 ms. Allocated memory is still 121.6 MB. Free memory was 79.7 MB in the beginning and 53.4 MB in the end (delta: 26.3 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:36:51,135 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.89 ms. Allocated memory is still 121.6 MB. Free memory was 53.4 MB in the beginning and 48.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:36:51,136 INFO L168 Benchmark]: Boogie Preprocessor took 121.81 ms. Allocated memory is still 121.6 MB. Free memory was 48.5 MB in the beginning and 90.8 MB in the end (delta: -42.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:36:51,136 INFO L168 Benchmark]: RCFGBuilder took 2620.72 ms. Allocated memory was 121.6 MB in the beginning and 174.1 MB in the end (delta: 52.4 MB). Free memory was 90.8 MB in the beginning and 127.7 MB in the end (delta: -36.9 MB). Peak memory consumption was 75.0 MB. Max. memory is 16.1 GB. [2021-10-29 04:36:51,137 INFO L168 Benchmark]: TraceAbstraction took 889.91 ms. Allocated memory is still 174.1 MB. Free memory was 127.7 MB in the beginning and 85.7 MB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2021-10-29 04:36:51,137 INFO L168 Benchmark]: Witness Printer took 152.36 ms. Allocated memory is still 174.1 MB. Free memory was 85.7 MB in the beginning and 73.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:36:51,139 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 121.6 MB. Free memory is still 101.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 899.65 ms. Allocated memory is still 121.6 MB. Free memory was 79.7 MB in the beginning and 53.4 MB in the end (delta: 26.3 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.89 ms. Allocated memory is still 121.6 MB. Free memory was 53.4 MB in the beginning and 48.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 121.81 ms. Allocated memory is still 121.6 MB. Free memory was 48.5 MB in the beginning and 90.8 MB in the end (delta: -42.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2620.72 ms. Allocated memory was 121.6 MB in the beginning and 174.1 MB in the end (delta: 52.4 MB). Free memory was 90.8 MB in the beginning and 127.7 MB in the end (delta: -36.9 MB). Peak memory consumption was 75.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 889.91 ms. Allocated memory is still 174.1 MB. Free memory was 127.7 MB in the beginning and 85.7 MB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * Witness Printer took 152.36 ms. Allocated memory is still 174.1 MB. Free memory was 85.7 MB in the beginning and 73.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * 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 - PositiveResult [Line: 3089]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 60 SDtfs, 39 SDslu, 18 SDs, 0 SdLazy, 11 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 14 PreInvPairs, 32 NumberOfFragments, 58 HoareAnnotationTreeSize, 14 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2848]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2961]: Loop Invariant Derived loop invariant: ldv_module_refcounter == 1 && ldv_state_variable_0 == 1 - InvariantResult [Line: 2970]: Loop Invariant Derived loop invariant: ldv_module_refcounter == 1 && ldv_state_variable_0 == 1 - InvariantResult [Line: 2981]: Loop Invariant Derived loop invariant: ldv_module_refcounter == 1 && ldv_state_variable_0 == 1 - InvariantResult [Line: 3033]: Loop Invariant Derived loop invariant: ldv_module_refcounter == 1 - InvariantResult [Line: 2942]: Loop Invariant Derived loop invariant: ldv_module_refcounter == 1 && ldv_state_variable_0 == 1 - InvariantResult [Line: 3187]: Loop Invariant Derived loop invariant: ldv_module_refcounter == 1 - InvariantResult [Line: 2954]: Loop Invariant Derived loop invariant: ldv_module_refcounter == 1 && ldv_state_variable_0 == 1 - InvariantResult [Line: 3045]: Loop Invariant Derived loop invariant: ldv_module_refcounter == 1 - InvariantResult [Line: 3053]: Loop Invariant Derived loop invariant: ldv_module_refcounter == 1 - InvariantResult [Line: 3184]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2848]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 2970]: Loop Invariant Derived loop invariant: ldv_module_refcounter == 1 && ldv_state_variable_0 == 1 RESULT: Ultimate proved your program to be correct! [2021-10-29 04:36:51,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_058e759b-93cd-4e40-887b-f6526adb9d62/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...