./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label37.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label37.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8 --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 32bit --witnessprinter.graph.data.programhash 019cfc0f5e1dac32eb6ff0e55ff4699e9eba8503 .................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:57:45,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:57:45,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:57:45,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:57:45,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:57:45,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:57:45,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:57:45,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:57:45,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:57:45,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:57:45,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:57:45,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:57:45,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:57:45,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:57:45,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:57:46,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:57:46,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:57:46,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:57:46,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:57:46,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:57:46,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:57:46,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:57:46,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:57:46,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:57:46,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:57:46,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:57:46,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:57:46,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:57:46,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:57:46,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:57:46,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:57:46,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:57:46,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:57:46,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:57:46,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:57:46,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:57:46,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:57:46,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:57:46,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:57:46,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:57:46,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:57:46,051 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:57:46,077 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:57:46,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:57:46,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:57:46,079 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:57:46,079 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:57:46,079 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:57:46,079 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:57:46,080 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:57:46,080 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:57:46,080 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:57:46,080 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:57:46,080 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:57:46,081 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:57:46,081 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:57:46,081 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:57:46,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:57:46,082 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:57:46,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:57:46,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:57:46,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:57:46,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:57:46,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:57:46,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:57:46,084 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:57:46,084 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:57:46,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:57:46,084 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:57:46,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:57:46,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:57:46,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:57:46,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:57:46,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:57:46,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:57:46,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:57:46,086 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:57:46,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:57:46,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:57:46,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:57:46,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:57:46,087 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_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 019cfc0f5e1dac32eb6ff0e55ff4699e9eba8503 [2021-10-13 07:57:46,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:57:46,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:57:46,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:57:46,409 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:57:46,409 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:57:46,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem10_label37.c [2021-10-13 07:57:46,489 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/data/8b8580032/66f05539a15a480bbe3ebc17ff5a9d6f/FLAGd787c8d1d [2021-10-13 07:57:47,052 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:57:47,053 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/sv-benchmarks/c/eca-rers2012/Problem10_label37.c [2021-10-13 07:57:47,066 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/data/8b8580032/66f05539a15a480bbe3ebc17ff5a9d6f/FLAGd787c8d1d [2021-10-13 07:57:47,345 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/data/8b8580032/66f05539a15a480bbe3ebc17ff5a9d6f [2021-10-13 07:57:47,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:57:47,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:57:47,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:57:47,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:57:47,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:57:47,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:57:47" (1/1) ... [2021-10-13 07:57:47,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b6342a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:47, skipping insertion in model container [2021-10-13 07:57:47,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:57:47" (1/1) ... [2021-10-13 07:57:47,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:57:47,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:57:47,692 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_b6453a4a-48eb-4d4c-8a00-cc431ed46805/sv-benchmarks/c/eca-rers2012/Problem10_label37.c[6216,6229] [2021-10-13 07:57:47,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:57:47,861 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:57:47,917 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_b6453a4a-48eb-4d4c-8a00-cc431ed46805/sv-benchmarks/c/eca-rers2012/Problem10_label37.c[6216,6229] [2021-10-13 07:57:48,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:57:48,037 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:57:48,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:48 WrapperNode [2021-10-13 07:57:48,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:57:48,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:57:48,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:57:48,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:57:48,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:48" (1/1) ... [2021-10-13 07:57:48,077 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:48" (1/1) ... [2021-10-13 07:57:48,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:57:48,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:57:48,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:57:48,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:57:48,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:48" (1/1) ... [2021-10-13 07:57:48,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:48" (1/1) ... [2021-10-13 07:57:48,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:48" (1/1) ... [2021-10-13 07:57:48,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:48" (1/1) ... [2021-10-13 07:57:48,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:48" (1/1) ... [2021-10-13 07:57:48,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:48" (1/1) ... [2021-10-13 07:57:48,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:48" (1/1) ... [2021-10-13 07:57:48,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:57:48,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:57:48,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:57:48,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:57:48,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:48" (1/1) ... [2021-10-13 07:57:48,286 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:57:48,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:57:48,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:57:48,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:57:48,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:57:48,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:57:48,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:57:48,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:57:56,557 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:57:56,557 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:57:56,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:57:56 BoogieIcfgContainer [2021-10-13 07:57:56,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:57:56,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:57:56,561 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:57:56,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:57:56,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:57:47" (1/3) ... [2021-10-13 07:57:56,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c67acc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:57:56, skipping insertion in model container [2021-10-13 07:57:56,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:57:48" (2/3) ... [2021-10-13 07:57:56,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c67acc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:57:56, skipping insertion in model container [2021-10-13 07:57:56,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:57:56" (3/3) ... [2021-10-13 07:57:56,570 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label37.c [2021-10-13 07:57:56,581 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:57:56,581 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:57:56,644 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:57:56,651 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, mConcurrency=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 [2021-10-13 07:57:56,651 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:57:56,665 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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) [2021-10-13 07:57:56,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 07:57:56,670 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:57:56,670 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 07:57:56,671 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:57:56,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:57:56,676 INFO L82 PathProgramCache]: Analyzing trace with hash 886109675, now seen corresponding path program 1 times [2021-10-13 07:57:56,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:57:56,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653987398] [2021-10-13 07:57:56,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:57:56,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:57:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:57:56,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:56,953 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:57:56,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653987398] [2021-10-13 07:57:56,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653987398] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:57:56,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:57:56,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:57:56,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898835792] [2021-10-13 07:57:56,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:57:56,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:57:56,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:57:56,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:57:56,985 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-10-13 07:57:57,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:57:57,056 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-10-13 07:57:57,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:57:57,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2021-10-13 07:57:57,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:57:57,063 INFO L225 Difference]: With dead ends: 23 [2021-10-13 07:57:57,064 INFO L226 Difference]: Without dead ends: 11 [2021-10-13 07:57:57,066 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:57:57,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-13 07:57:57,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-13 07:57:57,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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) [2021-10-13 07:57:57,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-13 07:57:57,095 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-13 07:57:57,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:57:57,095 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-13 07:57:57,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-10-13 07:57:57,096 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-13 07:57:57,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:57:57,096 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:57:57,097 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-13 07:57:57,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:57:57,097 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:57:57,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:57:57,098 INFO L82 PathProgramCache]: Analyzing trace with hash 196614242, now seen corresponding path program 1 times [2021-10-13 07:57:57,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:57:57,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452555018] [2021-10-13 07:57:57,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:57:57,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:57:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:57:57,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:57:57,550 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:57:57,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452555018] [2021-10-13 07:57:57,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452555018] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:57:57,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522758228] [2021-10-13 07:57:57,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:57:57,551 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:57:57,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:57:57,554 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:57:57,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:57:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:57:57,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-13 07:57:57,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:58:12,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:12,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:58:23,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 07:58:23,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522758228] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 07:58:23,363 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:58:23,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4] total 7 [2021-10-13 07:58:23,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494488123] [2021-10-13 07:58:23,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:58:23,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:23,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:58:23,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:58:23,368 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-13 07:58:23,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:23,400 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-10-13 07:58:23,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:58:23,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 9 [2021-10-13 07:58:23,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:23,403 INFO L225 Difference]: With dead ends: 10 [2021-10-13 07:58:23,403 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:58:23,404 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 199.4ms TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:58:23,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:58:23,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:58:23,405 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) [2021-10-13 07:58:23,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:58:23,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-10-13 07:58:23,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:23,409 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:58:23,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-13 07:58:23,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:58:23,410 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:58:23,412 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:58:23,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-13 07:58:23,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:58:23,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:58:23,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:58:23,648 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:58:23,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:58:23,668 INFO L857 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-10-13 07:58:23,668 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:58:23,669 INFO L853 garLoopResultBuilder]: At program point L175-1(lines 30 584) the Hoare annotation is: (or (< 218 ~a1~0) (<= ~a1~0 38) (not (= ~a10~0 4)) (not (= 7 ~a19~0))) [2021-10-13 07:58:23,670 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-13 07:58:23,670 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:58:23,670 INFO L860 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-10-13 07:58:23,671 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:58:23,671 INFO L853 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (or (< 218 ~a1~0) (<= ~a1~0 38) (not (= ~a10~0 4)) (not (= 7 ~a19~0))) [2021-10-13 07:58:23,671 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 176) no Hoare annotation was computed. [2021-10-13 07:58:23,678 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:58:23,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:58:23 BoogieIcfgContainer [2021-10-13 07:58:23,694 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:58:23,696 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:58:23,696 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:58:23,696 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:58:23,697 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:57:56" (3/4) ... [2021-10-13 07:58:23,699 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:58:23,735 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 183 nodes and edges [2021-10-13 07:58:23,737 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-10-13 07:58:23,739 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 07:58:23,740 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:58:23,917 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:58:23,917 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:58:23,919 INFO L168 Benchmark]: Toolchain (without parser) took 36569.31 ms. Allocated memory was 81.8 MB in the beginning and 1.7 GB in the end (delta: 1.6 GB). Free memory was 46.3 MB in the beginning and 1.0 GB in the end (delta: -977.4 MB). Peak memory consumption was 622.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:58:23,920 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 81.8 MB. Free memory was 53.3 MB in the beginning and 53.3 MB in the end (delta: 27.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:58:23,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 681.39 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 46.0 MB in the beginning and 63.1 MB in the end (delta: -17.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:58:23,921 INFO L168 Benchmark]: Boogie Procedure Inliner took 135.66 ms. Allocated memory is still 102.8 MB. Free memory was 63.1 MB in the beginning and 55.2 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:58:23,921 INFO L168 Benchmark]: Boogie Preprocessor took 97.63 ms. Allocated memory is still 102.8 MB. Free memory was 55.2 MB in the beginning and 50.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:58:23,922 INFO L168 Benchmark]: RCFGBuilder took 8284.89 ms. Allocated memory was 102.8 MB in the beginning and 390.1 MB in the end (delta: 287.3 MB). Free memory was 50.5 MB in the beginning and 260.3 MB in the end (delta: -209.8 MB). Peak memory consumption was 133.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:58:23,922 INFO L168 Benchmark]: TraceAbstraction took 27133.67 ms. Allocated memory was 390.1 MB in the beginning and 1.7 GB in the end (delta: 1.3 GB). Free memory was 260.3 MB in the beginning and 1.0 GB in the end (delta: -779.1 MB). Peak memory consumption was 512.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:58:23,922 INFO L168 Benchmark]: Witness Printer took 221.92 ms. Allocated memory is still 1.7 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:58:23,925 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 81.8 MB. Free memory was 53.3 MB in the beginning and 53.3 MB in the end (delta: 27.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 681.39 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 46.0 MB in the beginning and 63.1 MB in the end (delta: -17.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 135.66 ms. Allocated memory is still 102.8 MB. Free memory was 63.1 MB in the beginning and 55.2 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 97.63 ms. Allocated memory is still 102.8 MB. Free memory was 55.2 MB in the beginning and 50.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 8284.89 ms. Allocated memory was 102.8 MB in the beginning and 390.1 MB in the end (delta: 287.3 MB). Free memory was 50.5 MB in the beginning and 260.3 MB in the end (delta: -209.8 MB). Peak memory consumption was 133.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 27133.67 ms. Allocated memory was 390.1 MB in the beginning and 1.7 GB in the end (delta: 1.3 GB). Free memory was 260.3 MB in the beginning and 1.0 GB in the end (delta: -779.1 MB). Peak memory consumption was 512.7 MB. Max. memory is 16.1 GB. * Witness Printer took 221.92 ms. Allocated memory is still 1.7 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 176]: 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27032.7ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 9.8ms, AutomataDifference: 135.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 28.7ms, InitialAbstractionConstructionTime: 9.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8 SDtfs, 8 SDslu, 8 SDs, 0 SdLazy, 14 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 68.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 222.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 19.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 31 HoareAnnotationTreeSize, 3 FomulaSimplifications, 35 FormulaSimplificationTreeSizeReduction, 12.4ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 10.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 20.6ms SsaConstructionTime, 218.9ms SatisfiabilityAnalysisTime, 26202.2ms InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 745 SizeOfPredicates, 4 NumberOfNonLiveVariables, 196 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 3/9 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: 592]: Loop Invariant Derived loop invariant: ((218 < a1 || a1 <= 38) || !(a10 == 4)) || !(7 == a19) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((218 < a1 || a1 <= 38) || !(a10 == 4)) || !(7 == a19) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 07:58:23,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6453a4a-48eb-4d4c-8a00-cc431ed46805/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...