./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/integerpromotion-3.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_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/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_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/integerpromotion-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/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_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/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 c45a2095b49f6777b86778952566dd983301d428 .............................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/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_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/integerpromotion-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/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 c45a2095b49f6777b86778952566dd983301d428 .............................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 06:58:53,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:58:53,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:58:53,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:58:53,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:58:53,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:58:53,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:58:53,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:58:53,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:58:53,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:58:53,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:58:53,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:58:53,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:58:53,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:58:53,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:58:53,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:58:53,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:58:53,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:58:53,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:58:53,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:58:53,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:58:53,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:58:53,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:58:53,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:58:53,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:58:53,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:58:53,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:58:53,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:58:53,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:58:53,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:58:53,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:58:53,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:58:53,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:58:53,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:58:53,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:58:53,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:58:53,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:58:53,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:58:53,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:58:53,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:58:53,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:58:53,416 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 06:58:53,484 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:58:53,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:58:53,486 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:58:53,486 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:58:53,487 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:58:53,487 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:58:53,487 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 06:58:53,488 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:58:53,496 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:58:53,496 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 06:58:53,498 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 06:58:53,498 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:58:53,498 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 06:58:53,499 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 06:58:53,499 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 06:58:53,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:58:53,500 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:58:53,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 06:58:53,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:58:53,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:58:53,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:58:53,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:58:53,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:58:53,503 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:58:53,503 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:58:53,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:58:53,503 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:58:53,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:58:53,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:58:53,506 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:58:53,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:58:53,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:58:53,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:58:53,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:58:53,508 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 06:58:53,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 06:58:53,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:58:53,509 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:58:53,510 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:58:53,510 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_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c45a2095b49f6777b86778952566dd983301d428 [2021-10-13 06:58:53,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:58:53,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:58:53,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:58:53,917 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:58:53,918 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:58:53,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/bitvector-regression/integerpromotion-3.c [2021-10-13 06:58:53,991 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/data/f2655d527/9a8df245dccd4e3595b07661e45445b6/FLAG7ae246d25 [2021-10-13 06:58:54,555 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:58:54,556 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c [2021-10-13 06:58:54,569 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/data/f2655d527/9a8df245dccd4e3595b07661e45445b6/FLAG7ae246d25 [2021-10-13 06:58:54,893 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/data/f2655d527/9a8df245dccd4e3595b07661e45445b6 [2021-10-13 06:58:54,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:58:54,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:58:54,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:58:54,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:58:54,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:58:54,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:58:54" (1/1) ... [2021-10-13 06:58:54,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da702d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:54, skipping insertion in model container [2021-10-13 06:58:54,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:58:54" (1/1) ... [2021-10-13 06:58:54,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:58:54,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:58:55,129 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_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c[423,436] [2021-10-13 06:58:55,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:58:55,151 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:58:55,175 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_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c[423,436] [2021-10-13 06:58:55,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:58:55,190 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:58:55,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:55 WrapperNode [2021-10-13 06:58:55,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:58:55,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:58:55,192 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:58:55,192 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:58:55,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:55" (1/1) ... [2021-10-13 06:58:55,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:55" (1/1) ... [2021-10-13 06:58:55,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:58:55,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:58:55,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:58:55,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:58:55,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:55" (1/1) ... [2021-10-13 06:58:55,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:55" (1/1) ... [2021-10-13 06:58:55,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:55" (1/1) ... [2021-10-13 06:58:55,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:55" (1/1) ... [2021-10-13 06:58:55,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:55" (1/1) ... [2021-10-13 06:58:55,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:55" (1/1) ... [2021-10-13 06:58:55,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:55" (1/1) ... [2021-10-13 06:58:55,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:58:55,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:58:55,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:58:55,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:58:55,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:55" (1/1) ... [2021-10-13 06:58:55,264 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:58:55,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:58:55,289 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:58:55,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:58:55,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:58:55,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:58:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 06:58:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:58:55,568 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:58:55,568 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 06:58:55,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:58:55 BoogieIcfgContainer [2021-10-13 06:58:55,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:58:55,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:58:55,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:58:55,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:58:55,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:58:54" (1/3) ... [2021-10-13 06:58:55,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d101d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:58:55, skipping insertion in model container [2021-10-13 06:58:55,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:55" (2/3) ... [2021-10-13 06:58:55,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d101d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:58:55, skipping insertion in model container [2021-10-13 06:58:55,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:58:55" (3/3) ... [2021-10-13 06:58:55,592 INFO L111 eAbstractionObserver]: Analyzing ICFG integerpromotion-3.c [2021-10-13 06:58:55,598 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:58:55,598 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 06:58:55,658 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:58:55,667 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 06:58:55,667 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 06:58:55,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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 06:58:55,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 06:58:55,689 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:58:55,690 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 06:58:55,691 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:58:55,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:58:55,698 INFO L82 PathProgramCache]: Analyzing trace with hash 43409, now seen corresponding path program 1 times [2021-10-13 06:58:55,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 06:58:55,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022106067] [2021-10-13 06:58:55,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:58:55,731 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 06:58:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 06:58:55,881 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 06:58:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 06:58:55,971 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-13 06:58:55,974 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 06:58:55,979 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:58:55,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 06:58:55,993 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 06:58:56,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:58:56 BoogieIcfgContainer [2021-10-13 06:58:56,015 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 06:58:56,016 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 06:58:56,016 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 06:58:56,017 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 06:58:56,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:58:55" (3/4) ... [2021-10-13 06:58:56,022 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 06:58:56,022 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 06:58:56,026 INFO L168 Benchmark]: Toolchain (without parser) took 1125.16 ms. Allocated memory is still 90.2 MB. Free memory was 52.8 MB in the beginning and 42.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:58:56,030 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 90.2 MB. Free memory is still 68.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:58:56,032 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.50 ms. Allocated memory is still 90.2 MB. Free memory was 52.6 MB in the beginning and 67.5 MB in the end (delta: -15.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:58:56,035 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.56 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 66.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:58:56,038 INFO L168 Benchmark]: Boogie Preprocessor took 23.20 ms. Allocated memory is still 90.2 MB. Free memory was 66.1 MB in the beginning and 65.1 MB in the end (delta: 974.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:58:56,039 INFO L168 Benchmark]: RCFGBuilder took 318.83 ms. Allocated memory is still 90.2 MB. Free memory was 65.1 MB in the beginning and 55.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:58:56,040 INFO L168 Benchmark]: TraceAbstraction took 441.69 ms. Allocated memory is still 90.2 MB. Free memory was 55.3 MB in the beginning and 42.9 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 06:58:56,041 INFO L168 Benchmark]: Witness Printer took 5.92 ms. Allocated memory is still 90.2 MB. Free memory was 42.6 MB in the beginning and 42.6 MB in the end (delta: 2.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:58:56,046 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 90.2 MB. Free memory is still 68.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 290.50 ms. Allocated memory is still 90.2 MB. Free memory was 52.6 MB in the beginning and 67.5 MB in the end (delta: -15.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.56 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 66.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.20 ms. Allocated memory is still 90.2 MB. Free memory was 66.1 MB in the beginning and 65.1 MB in the end (delta: 974.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 318.83 ms. Allocated memory is still 90.2 MB. Free memory was 65.1 MB in the beginning and 55.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 441.69 ms. Allocated memory is still 90.2 MB. Free memory was 55.3 MB in the beginning and 42.9 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.92 ms. Allocated memory is still 90.2 MB. Free memory was 42.6 MB in the beginning and 42.6 MB in the end (delta: 2.7 kB). There was no memory consumed. 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 - UnprovableResult [Line: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 8. Possible FailurePath: [L7] unsigned char port = 0x5a; [L8] unsigned char result_8 = ( ~port ) >> 4; [L9] COND TRUE result_8 == 0xfa [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 335.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 10.3ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.9ms SsaConstructionTime, 50.7ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-13 06:58:56,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 06:58:59,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:58:59,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:58:59,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:58:59,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:58:59,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:58:59,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:58:59,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:58:59,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:58:59,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:58:59,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:58:59,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:58:59,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:58:59,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:58:59,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:58:59,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:58:59,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:58:59,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:58:59,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:58:59,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:58:59,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:58:59,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:58:59,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:58:59,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:58:59,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:58:59,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:58:59,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:58:59,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:58:59,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:58:59,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:58:59,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:58:59,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:58:59,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:58:59,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:58:59,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:58:59,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:58:59,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:58:59,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:58:59,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:58:59,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:58:59,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:58:59,293 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 06:58:59,344 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:58:59,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:58:59,345 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:58:59,346 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:58:59,346 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:58:59,346 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:58:59,346 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:58:59,347 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:58:59,347 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:58:59,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:58:59,350 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:58:59,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:58:59,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:58:59,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:58:59,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:58:59,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:58:59,351 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:58:59,351 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 06:58:59,352 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 06:58:59,352 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:58:59,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:58:59,352 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:58:59,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:58:59,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:58:59,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 06:58:59,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:58:59,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:58:59,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:58:59,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:58:59,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:58:59,354 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 06:58:59,354 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 06:58:59,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:58:59,355 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:58:59,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:58:59,355 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c45a2095b49f6777b86778952566dd983301d428 [2021-10-13 06:58:59,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:58:59,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:58:59,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:58:59,899 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:58:59,900 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:58:59,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/bitvector-regression/integerpromotion-3.c [2021-10-13 06:59:00,000 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/data/ccde63d79/9027ae83e8f74493b21ffb4baae909e6/FLAGc50bcdfeb [2021-10-13 06:59:00,689 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:59:00,689 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c [2021-10-13 06:59:00,700 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/data/ccde63d79/9027ae83e8f74493b21ffb4baae909e6/FLAGc50bcdfeb [2021-10-13 06:59:01,034 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/data/ccde63d79/9027ae83e8f74493b21ffb4baae909e6 [2021-10-13 06:59:01,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:59:01,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:59:01,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:59:01,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:59:01,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:59:01,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:59:01" (1/1) ... [2021-10-13 06:59:01,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dc0a0d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:59:01, skipping insertion in model container [2021-10-13 06:59:01,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:59:01" (1/1) ... [2021-10-13 06:59:01,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:59:01,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:59:01,257 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_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c[423,436] [2021-10-13 06:59:01,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:59:01,285 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:59:01,337 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_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/sv-benchmarks/c/bitvector-regression/integerpromotion-3.c[423,436] [2021-10-13 06:59:01,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:59:01,367 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:59:01,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:59:01 WrapperNode [2021-10-13 06:59:01,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:59:01,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:59:01,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:59:01,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:59:01,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:59:01" (1/1) ... [2021-10-13 06:59:01,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:59:01" (1/1) ... [2021-10-13 06:59:01,412 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:59:01,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:59:01,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:59:01,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:59:01,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:59:01" (1/1) ... [2021-10-13 06:59:01,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:59:01" (1/1) ... [2021-10-13 06:59:01,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:59:01" (1/1) ... [2021-10-13 06:59:01,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:59:01" (1/1) ... [2021-10-13 06:59:01,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:59:01" (1/1) ... [2021-10-13 06:59:01,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:59:01" (1/1) ... [2021-10-13 06:59:01,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:59:01" (1/1) ... [2021-10-13 06:59:01,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:59:01,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:59:01,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:59:01,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:59:01,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:59:01" (1/1) ... [2021-10-13 06:59:01,469 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:59:01,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:59:01,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:59:01,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:59:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:59:01,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:59:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 06:59:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:59:01,872 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:59:01,872 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 06:59:01,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:59:01 BoogieIcfgContainer [2021-10-13 06:59:01,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:59:01,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:59:01,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:59:01,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:59:01,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:59:01" (1/3) ... [2021-10-13 06:59:01,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@720f5498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:59:01, skipping insertion in model container [2021-10-13 06:59:01,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:59:01" (2/3) ... [2021-10-13 06:59:01,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@720f5498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:59:01, skipping insertion in model container [2021-10-13 06:59:01,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:59:01" (3/3) ... [2021-10-13 06:59:01,897 INFO L111 eAbstractionObserver]: Analyzing ICFG integerpromotion-3.c [2021-10-13 06:59:01,905 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:59:01,905 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 06:59:01,980 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:59:01,993 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 06:59:01,994 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 06:59:02,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 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) [2021-10-13 06:59:02,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 06:59:02,024 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:59:02,025 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 06:59:02,025 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:59:02,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:59:02,034 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2021-10-13 06:59:02,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:59:02,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [694433386] [2021-10-13 06:59:02,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:59:02,053 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:59:02,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:59:02,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:59:02,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 06:59:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 06:59:02,183 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 06:59:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 06:59:02,259 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-13 06:59:02,262 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 06:59:02,263 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:59:02,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 06:59:02,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:59:02,491 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 06:59:02,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:59:02 BoogieIcfgContainer [2021-10-13 06:59:02,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 06:59:02,528 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 06:59:02,529 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 06:59:02,529 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 06:59:02,530 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:59:01" (3/4) ... [2021-10-13 06:59:02,532 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 06:59:02,586 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 06:59:02,586 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 06:59:02,595 INFO L168 Benchmark]: Toolchain (without parser) took 1549.59 ms. Allocated memory is still 60.8 MB. Free memory was 40.6 MB in the beginning and 36.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:59:02,595 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 60.8 MB. Free memory is still 41.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:59:02,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.69 ms. Allocated memory is still 60.8 MB. Free memory was 40.4 MB in the beginning and 43.9 MB in the end (delta: -3.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:59:02,598 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.04 ms. Allocated memory is still 60.8 MB. Free memory was 43.7 MB in the beginning and 42.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:59:02,598 INFO L168 Benchmark]: Boogie Preprocessor took 39.94 ms. Allocated memory is still 60.8 MB. Free memory was 42.3 MB in the beginning and 41.4 MB in the end (delta: 981.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:59:02,599 INFO L168 Benchmark]: RCFGBuilder took 427.20 ms. Allocated memory is still 60.8 MB. Free memory was 41.4 MB in the beginning and 32.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:59:02,603 INFO L168 Benchmark]: TraceAbstraction took 640.10 ms. Allocated memory is still 60.8 MB. Free memory was 32.3 MB in the beginning and 38.7 MB in the end (delta: -6.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:59:02,603 INFO L168 Benchmark]: Witness Printer took 59.41 ms. Allocated memory is still 60.8 MB. Free memory was 38.7 MB in the beginning and 36.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:59:02,610 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 60.8 MB. Free memory is still 41.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 327.69 ms. Allocated memory is still 60.8 MB. Free memory was 40.4 MB in the beginning and 43.9 MB in the end (delta: -3.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.04 ms. Allocated memory is still 60.8 MB. Free memory was 43.7 MB in the beginning and 42.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.94 ms. Allocated memory is still 60.8 MB. Free memory was 42.3 MB in the beginning and 41.4 MB in the end (delta: 981.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 427.20 ms. Allocated memory is still 60.8 MB. Free memory was 41.4 MB in the beginning and 32.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 640.10 ms. Allocated memory is still 60.8 MB. Free memory was 32.3 MB in the beginning and 38.7 MB in the end (delta: -6.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 59.41 ms. Allocated memory is still 60.8 MB. Free memory was 38.7 MB in the beginning and 36.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 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 - CounterExampleResult [Line: 14]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L7] unsigned char port = 0x5a; [L8] unsigned char result_8 = ( ~port ) >> 4; [L9] COND TRUE result_8 == 0xfa [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 506.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 14.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.2ms SsaConstructionTime, 20.9ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-13 06:59:02,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5af9a1d-c5a4-43d5-965a-cbed8de0d5ba/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...