./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label06.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_8056c3da-e383-45b7-816c-df5d39e07232/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/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_8056c3da-e383-45b7-816c-df5d39e07232/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/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_8056c3da-e383-45b7-816c-df5d39e07232/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 7b840f75fc867ba63f78865f2888fe33f8c0f62a .................................................................................................................................................................................................................................................................................................................................................. 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 07:25:36,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:25:36,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:25:36,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:25:36,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:25:36,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:25:36,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:25:36,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:25:36,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:25:36,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:25:36,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:25:36,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:25:36,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:25:36,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:25:36,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:25:36,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:25:36,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:25:36,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:25:36,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:25:36,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:25:36,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:25:36,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:25:36,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:25:36,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:25:36,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:25:36,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:25:36,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:25:36,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:25:36,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:25:36,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:25:36,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:25:36,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:25:36,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:25:36,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:25:36,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:25:36,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:25:36,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:25:36,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:25:36,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:25:36,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:25:36,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:25:36,589 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:25:36,626 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:25:36,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:25:36,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:25:36,628 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:25:36,628 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:25:36,628 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:25:36,628 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:25:36,629 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:25:36,629 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:25:36,629 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:25:36,630 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:25:36,630 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:25:36,631 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:25:36,631 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:25:36,631 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:25:36,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:25:36,632 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:25:36,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:25:36,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:25:36,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:25:36,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:25:36,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:25:36,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:25:36,634 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:25:36,634 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:25:36,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:25:36,634 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:25:36,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:25:36,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:25:36,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:25:36,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:25:36,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:25:36,637 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:25:36,637 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:25:36,638 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:25:36,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:25:36,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:25:36,638 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:25:36,638 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:25:36,639 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_8056c3da-e383-45b7-816c-df5d39e07232/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b840f75fc867ba63f78865f2888fe33f8c0f62a [2021-10-13 07:25:36,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:25:36,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:25:36,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:25:36,933 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:25:36,934 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:25:36,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem10_label06.c [2021-10-13 07:25:37,010 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/bin/utaipan-q2qaUkNPG8/data/726078816/b05cbbce17a448ce8bcc1f075a44fc85/FLAG1bb19cf2f [2021-10-13 07:25:37,552 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:25:37,552 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/sv-benchmarks/c/eca-rers2012/Problem10_label06.c [2021-10-13 07:25:37,567 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/bin/utaipan-q2qaUkNPG8/data/726078816/b05cbbce17a448ce8bcc1f075a44fc85/FLAG1bb19cf2f [2021-10-13 07:25:37,835 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/bin/utaipan-q2qaUkNPG8/data/726078816/b05cbbce17a448ce8bcc1f075a44fc85 [2021-10-13 07:25:37,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:25:37,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:25:37,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:25:37,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:25:37,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:25:37,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:25:37" (1/1) ... [2021-10-13 07:25:37,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d2cb3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:37, skipping insertion in model container [2021-10-13 07:25:37,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:25:37" (1/1) ... [2021-10-13 07:25:37,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:25:37,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:25:38,152 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_8056c3da-e383-45b7-816c-df5d39e07232/sv-benchmarks/c/eca-rers2012/Problem10_label06.c[2930,2943] [2021-10-13 07:25:38,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:25:38,327 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:25:38,351 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_8056c3da-e383-45b7-816c-df5d39e07232/sv-benchmarks/c/eca-rers2012/Problem10_label06.c[2930,2943] [2021-10-13 07:25:38,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:25:38,503 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:25:38,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:38 WrapperNode [2021-10-13 07:25:38,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:25:38,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:25:38,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:25:38,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:25:38,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:38" (1/1) ... [2021-10-13 07:25:38,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:38" (1/1) ... [2021-10-13 07:25:38,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:25:38,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:25:38,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:25:38,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:25:38,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:38" (1/1) ... [2021-10-13 07:25:38,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:38" (1/1) ... [2021-10-13 07:25:38,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:38" (1/1) ... [2021-10-13 07:25:38,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:38" (1/1) ... [2021-10-13 07:25:38,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:38" (1/1) ... [2021-10-13 07:25:38,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:38" (1/1) ... [2021-10-13 07:25:38,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:38" (1/1) ... [2021-10-13 07:25:38,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:25:38,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:25:38,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:25:38,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:25:38,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:38" (1/1) ... [2021-10-13 07:25:38,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:25:38,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:25:38,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:25:38,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:25:38,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:25:38,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:25:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:25:38,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:25:47,430 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:25:47,431 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:25:47,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:25:47 BoogieIcfgContainer [2021-10-13 07:25:47,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:25:47,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:25:47,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:25:47,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:25:47,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:25:37" (1/3) ... [2021-10-13 07:25:47,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406459c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:25:47, skipping insertion in model container [2021-10-13 07:25:47,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:38" (2/3) ... [2021-10-13 07:25:47,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406459c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:25:47, skipping insertion in model container [2021-10-13 07:25:47,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:25:47" (3/3) ... [2021-10-13 07:25:47,443 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label06.c [2021-10-13 07:25:47,449 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:25:47,449 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:25:47,530 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:25:47,544 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 07:25:47,544 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:25:47,560 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 07:25:47,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 07:25:47,566 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:25:47,566 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 07:25:47,567 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:25:47,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:25:47,589 INFO L82 PathProgramCache]: Analyzing trace with hash 885164059, now seen corresponding path program 1 times [2021-10-13 07:25:47,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:25:47,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096158812] [2021-10-13 07:25:47,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:25:47,603 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:25:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:25:47,859 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 07:25:47,859 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:25:47,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096158812] [2021-10-13 07:25:47,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096158812] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:25:47,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:25:47,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:25:47,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280372794] [2021-10-13 07:25:47,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:25:47,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:25:47,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:25:47,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:25:47,895 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 07:25:47,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:25:47,966 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-10-13 07:25:47,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:25:47,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 07:25:47,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:25:47,976 INFO L225 Difference]: With dead ends: 23 [2021-10-13 07:25:47,977 INFO L226 Difference]: Without dead ends: 11 [2021-10-13 07:25:47,980 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:25:47,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-13 07:25:48,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-13 07:25:48,009 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 07:25:48,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-13 07:25:48,011 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-13 07:25:48,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:25:48,012 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-13 07:25:48,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 07:25:48,012 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-13 07:25:48,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:25:48,013 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:25:48,013 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-13 07:25:48,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:25:48,015 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:25:48,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:25:48,018 INFO L82 PathProgramCache]: Analyzing trace with hash -999635661, now seen corresponding path program 1 times [2021-10-13 07:25:48,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:25:48,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432981303] [2021-10-13 07:25:48,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:25:48,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:25:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:25:48,507 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 07:25:48,507 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:25:48,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432981303] [2021-10-13 07:25:48,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432981303] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:25:48,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409473718] [2021-10-13 07:25:48,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:25:48,509 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:25:48,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:25:48,512 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:25:48,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:25:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:25:48,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 07:25:48,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:03,853 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 07:26:03,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:15,886 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 07:26:15,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409473718] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 07:26:15,887 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:26:15,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3, 4] total 7 [2021-10-13 07:26:15,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593473347] [2021-10-13 07:26:15,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:26:15,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:26:15,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:26:15,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:26:15,892 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 07:26:15,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:15,920 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-10-13 07:26:15,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:26:15,922 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 07:26:15,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:15,922 INFO L225 Difference]: With dead ends: 10 [2021-10-13 07:26:15,923 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:26:15,924 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.8ms TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:26:15,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:26:15,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:26:15,925 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 07:26:15,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:26:15,929 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-10-13 07:26:15,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:15,929 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:26:15,930 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 07:26:15,930 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:26:15,931 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:26:15,933 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:26:15,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:26:16,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:26:16,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:26:16,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:26:16,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:26:16,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:26:16,179 INFO L857 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-10-13 07:26:16,180 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 07:26:16,180 INFO L853 garLoopResultBuilder]: At program point L85-1(lines 30 584) the Hoare annotation is: (or (not (= ~a19~0 6)) (<= ~a1~0 218) (not (= ~a10~0 1))) [2021-10-13 07:26:16,180 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:26:16,182 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-13 07:26:16,182 INFO L860 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-10-13 07:26:16,182 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:26:16,183 INFO L853 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (or (not (= ~a19~0 6)) (<= ~a1~0 218) (not (= ~a10~0 1))) [2021-10-13 07:26:16,183 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 86) no Hoare annotation was computed. [2021-10-13 07:26:16,188 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:26:16,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:26:16 BoogieIcfgContainer [2021-10-13 07:26:16,209 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:26:16,210 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:26:16,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:26:16,210 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:26:16,211 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:25:47" (3/4) ... [2021-10-13 07:26:16,214 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:26:16,248 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 182 nodes and edges [2021-10-13 07:26:16,250 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-10-13 07:26:16,252 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-13 07:26:16,254 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:26:16,433 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:26:16,434 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:26:16,436 INFO L168 Benchmark]: Toolchain (without parser) took 38595.67 ms. Allocated memory was 102.8 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 59.4 MB in the beginning and 635.4 MB in the end (delta: -576.1 MB). Peak memory consumption was 632.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:26:16,436 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 102.8 MB. Free memory is still 77.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:26:16,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.12 ms. Allocated memory is still 102.8 MB. Free memory was 59.2 MB in the beginning and 61.5 MB in the end (delta: -2.3 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:26:16,437 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.68 ms. Allocated memory is still 102.8 MB. Free memory was 61.5 MB in the beginning and 53.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:26:16,438 INFO L168 Benchmark]: Boogie Preprocessor took 76.31 ms. Allocated memory is still 102.8 MB. Free memory was 53.5 MB in the beginning and 48.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:26:16,438 INFO L168 Benchmark]: RCFGBuilder took 8747.94 ms. Allocated memory was 102.8 MB in the beginning and 243.3 MB in the end (delta: 140.5 MB). Free memory was 48.8 MB in the beginning and 102.6 MB in the end (delta: -53.9 MB). Peak memory consumption was 132.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:26:16,439 INFO L168 Benchmark]: TraceAbstraction took 28773.56 ms. Allocated memory was 243.3 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 102.6 MB in the beginning and 651.2 MB in the end (delta: -548.5 MB). Peak memory consumption was 517.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:26:16,439 INFO L168 Benchmark]: Witness Printer took 224.23 ms. Allocated memory is still 1.3 GB. Free memory was 651.2 MB in the beginning and 635.4 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:26:16,441 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 102.8 MB. Free memory is still 77.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 663.12 ms. Allocated memory is still 102.8 MB. Free memory was 59.2 MB in the beginning and 61.5 MB in the end (delta: -2.3 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.68 ms. Allocated memory is still 102.8 MB. Free memory was 61.5 MB in the beginning and 53.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.31 ms. Allocated memory is still 102.8 MB. Free memory was 53.5 MB in the beginning and 48.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 8747.94 ms. Allocated memory was 102.8 MB in the beginning and 243.3 MB in the end (delta: 140.5 MB). Free memory was 48.8 MB in the beginning and 102.6 MB in the end (delta: -53.9 MB). Peak memory consumption was 132.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 28773.56 ms. Allocated memory was 243.3 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 102.6 MB in the beginning and 651.2 MB in the end (delta: -548.5 MB). Peak memory consumption was 517.9 MB. Max. memory is 16.1 GB. * Witness Printer took 224.23 ms. Allocated memory is still 1.3 GB. Free memory was 651.2 MB in the beginning and 635.4 MB 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: 86]: 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: 28659.3ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 11.6ms, AutomataDifference: 139.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 29.9ms, InitialAbstractionConstructionTime: 10.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8 SDtfs, 3 SDslu, 4 SDs, 0 SdLazy, 10 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 71.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 158.3ms 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: 20.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 25 HoareAnnotationTreeSize, 3 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 13.1ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 9.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 27.8ms SsaConstructionTime, 271.1ms SatisfiabilityAnalysisTime, 27702.4ms InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 439 SizeOfPredicates, 4 NumberOfNonLiveVariables, 165 ConjunctsInSsa, 16 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: (!(a19 == 6) || a1 <= 218) || !(a10 == 1) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (!(a19 == 6) || a1 <= 218) || !(a10 == 1) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 07:26:16,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056c3da-e383-45b7-816c-df5d39e07232/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...