./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec60d58-e1db-4175-ac5b-98f184b51f3b/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec60d58-e1db-4175-ac5b-98f184b51f3b/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec60d58-e1db-4175-ac5b-98f184b51f3b/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec60d58-e1db-4175-ac5b-98f184b51f3b/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec60d58-e1db-4175-ac5b-98f184b51f3b/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec60d58-e1db-4175-ac5b-98f184b51f3b/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3128bcc50a570fd6ab3f02a0aea0555f1efca8620ba75a954486e3a50d741a87 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:15:50,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:15:50,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:15:50,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:15:50,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:15:50,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:15:50,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:15:50,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:15:50,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:15:50,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:15:50,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:15:50,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:15:50,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:15:50,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:15:50,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:15:50,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:15:50,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:15:50,534 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:15:50,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:15:50,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:15:50,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:15:50,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:15:50,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:15:50,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:15:50,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:15:50,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:15:50,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:15:50,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:15:50,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:15:50,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:15:50,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:15:50,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:15:50,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:15:50,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:15:50,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:15:50,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:15:50,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:15:50,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:15:50,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:15:50,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:15:50,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:15:50,593 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec60d58-e1db-4175-ac5b-98f184b51f3b/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:15:50,657 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:15:50,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:15:50,660 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:15:50,660 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:15:50,660 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:15:50,661 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:15:50,661 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:15:50,661 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:15:50,662 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:15:50,662 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:15:50,664 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:15:50,664 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:15:50,665 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:15:50,665 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:15:50,665 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:15:50,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:15:50,667 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:15:50,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:15:50,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:15:50,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:15:50,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:15:50,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:15:50,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:15:50,669 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:15:50,669 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:15:50,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:15:50,670 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:15:50,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:15:50,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:15:50,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:15:50,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:15:50,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:15:50,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:15:50,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:15:50,675 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:15:50,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:15:50,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:15:50,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:15:50,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:15:50,677 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_cec60d58-e1db-4175-ac5b-98f184b51f3b/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec60d58-e1db-4175-ac5b-98f184b51f3b/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3128bcc50a570fd6ab3f02a0aea0555f1efca8620ba75a954486e3a50d741a87 [2021-10-29 05:15:51,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:15:51,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:15:51,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:15:51,113 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:15:51,114 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:15:51,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec60d58-e1db-4175-ac5b-98f184b51f3b/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2021-10-29 05:15:51,202 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec60d58-e1db-4175-ac5b-98f184b51f3b/bin/utaipan-SDwSMHVbGG/data/9ec25c3d0/f045d6592a6b4633801b758bbf83e591/FLAGcd72a8a91 [2021-10-29 05:15:51,867 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:15:51,868 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec60d58-e1db-4175-ac5b-98f184b51f3b/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2021-10-29 05:15:51,884 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec60d58-e1db-4175-ac5b-98f184b51f3b/bin/utaipan-SDwSMHVbGG/data/9ec25c3d0/f045d6592a6b4633801b758bbf83e591/FLAGcd72a8a91 [2021-10-29 05:15:52,129 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec60d58-e1db-4175-ac5b-98f184b51f3b/bin/utaipan-SDwSMHVbGG/data/9ec25c3d0/f045d6592a6b4633801b758bbf83e591 [2021-10-29 05:15:52,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:15:52,134 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:15:52,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:15:52,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:15:52,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:15:52,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:15:52" (1/1) ... [2021-10-29 05:15:52,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19c2f160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:15:52, skipping insertion in model container [2021-10-29 05:15:52,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:15:52" (1/1) ... [2021-10-29 05:15:52,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:15:52,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:15:52,425 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_cec60d58-e1db-4175-ac5b-98f184b51f3b/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i[845,858] [2021-10-29 05:15:52,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:15:52,716 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:15:52,731 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_cec60d58-e1db-4175-ac5b-98f184b51f3b/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i[845,858] [2021-10-29 05:15:52,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:15:52,836 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:15:52,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:15:52 WrapperNode [2021-10-29 05:15:52,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:15:52,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:15:52,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:15:52,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:15:52,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:15:52" (1/1) ... [2021-10-29 05:15:52,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:15:52" (1/1) ... [2021-10-29 05:15:52,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:15:52,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:15:52,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:15:52,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:15:52,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:15:52" (1/1) ... [2021-10-29 05:15:52,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:15:52" (1/1) ... [2021-10-29 05:15:52,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:15:52" (1/1) ... [2021-10-29 05:15:52,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:15:52" (1/1) ... [2021-10-29 05:15:52,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:15:52" (1/1) ... [2021-10-29 05:15:52,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:15:52" (1/1) ... [2021-10-29 05:15:52,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:15:52" (1/1) ... [2021-10-29 05:15:52,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:15:52,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:15:52,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:15:52,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:15:52,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:15:52" (1/1) ... [2021-10-29 05:15:52,953 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:15:52,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec60d58-e1db-4175-ac5b-98f184b51f3b/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:15:52,993 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec60d58-e1db-4175-ac5b-98f184b51f3b/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:15:53,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec60d58-e1db-4175-ac5b-98f184b51f3b/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:15:53,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 05:15:53,049 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-29 05:15:53,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:15:53,050 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-29 05:15:53,050 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-29 05:15:53,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:15:53,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:15:53,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:15:53,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:15:53,053 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-29 05:15:53,501 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:15:53,502 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-29 05:15:53,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:15:53 BoogieIcfgContainer [2021-10-29 05:15:53,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:15:53,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:15:53,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:15:53,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:15:53,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:15:52" (1/3) ... [2021-10-29 05:15:53,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db9c001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:15:53, skipping insertion in model container [2021-10-29 05:15:53,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:15:52" (2/3) ... [2021-10-29 05:15:53,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db9c001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:15:53, skipping insertion in model container [2021-10-29 05:15:53,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:15:53" (3/3) ... [2021-10-29 05:15:53,516 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2021-10-29 05:15:53,523 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-29 05:15:53,539 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:15:53,539 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-29 05:15:53,539 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-29 05:15:53,620 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,620 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,621 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,621 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,621 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,621 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,622 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,622 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,622 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,623 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,623 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,623 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,624 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,624 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,624 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,624 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,625 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,625 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,625 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,625 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,626 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,626 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,626 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,627 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,627 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,627 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,628 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,628 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~z~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,628 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,628 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~z~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,635 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,637 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,638 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,638 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,639 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,640 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,653 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,654 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,654 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,654 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,654 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,655 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,655 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,655 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,656 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,656 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,657 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,657 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,657 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,658 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,658 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,658 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,659 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,659 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,659 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,659 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,660 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,660 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,660 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,660 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,661 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,661 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,661 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,662 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,662 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,662 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,663 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,663 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,663 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,664 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,664 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,665 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,665 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,665 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,665 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,666 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,666 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,666 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,667 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,667 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,667 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,668 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,668 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,668 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,669 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,669 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,669 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,670 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,670 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,671 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,671 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~z~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,671 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~z~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,672 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~z~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,672 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,672 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,673 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~z~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,673 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,673 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,674 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,674 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,674 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,674 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,675 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,675 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,675 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,676 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,676 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,676 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,681 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,682 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~z~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,682 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,682 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,683 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,683 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,683 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,684 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,684 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,684 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,685 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,685 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,685 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,685 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,686 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:15:53,692 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-29 05:15:53,749 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:15:53,757 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:15:53,757 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-29 05:15:53,777 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-29 05:15:53,793 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 115 places, 116 transitions, 237 flow [2021-10-29 05:15:53,797 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 115 places, 116 transitions, 237 flow [2021-10-29 05:15:53,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 115 places, 116 transitions, 237 flow [2021-10-29 05:15:53,957 INFO L129 PetriNetUnfolder]: 4/118 cut-off events. [2021-10-29 05:15:53,957 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-29 05:15:53,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 118 events. 4/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2021-10-29 05:15:53,972 INFO L116 LiptonReduction]: Number of co-enabled transitions 2448 [2021-10-29 05:16:04,722 INFO L131 LiptonReduction]: Checked pairs total: 7430 [2021-10-29 05:16:04,722 INFO L133 LiptonReduction]: Total number of compositions: 112 [2021-10-29 05:16:04,748 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 34 transitions, 73 flow [2021-10-29 05:16:04,794 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 170 states, 167 states have (on average 2.035928143712575) internal successors, (340), 169 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:04,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 167 states have (on average 2.035928143712575) internal successors, (340), 169 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:04,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 05:16:04,811 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:16:04,812 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-29 05:16:04,814 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-29 05:16:04,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:16:04,821 INFO L85 PathProgramCache]: Analyzing trace with hash 13684542, now seen corresponding path program 1 times [2021-10-29 05:16:04,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:16:04,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143008870] [2021-10-29 05:16:04,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:16:04,837 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:16:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:16:05,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:16:05,084 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:16:05,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143008870] [2021-10-29 05:16:05,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143008870] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:16:05,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:16:05,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:16:05,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500079900] [2021-10-29 05:16:05,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:16:05,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:16:05,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:16:05,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:16:05,129 INFO L87 Difference]: Start difference. First operand has 170 states, 167 states have (on average 2.035928143712575) internal successors, (340), 169 states have internal predecessors, (340), 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 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:05,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:16:05,175 INFO L93 Difference]: Finished difference Result 170 states and 312 transitions. [2021-10-29 05:16:05,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:16:05,177 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2021-10-29 05:16:05,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:16:05,210 INFO L225 Difference]: With dead ends: 170 [2021-10-29 05:16:05,211 INFO L226 Difference]: Without dead ends: 170 [2021-10-29 05:16:05,212 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:16:05,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-10-29 05:16:05,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2021-10-29 05:16:05,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 167 states have (on average 1.8682634730538923) internal successors, (312), 169 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:05,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 312 transitions. [2021-10-29 05:16:05,281 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 312 transitions. Word has length 4 [2021-10-29 05:16:05,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:16:05,282 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 312 transitions. [2021-10-29 05:16:05,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:05,282 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 312 transitions. [2021-10-29 05:16:05,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 05:16:05,286 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:16:05,287 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 05:16:05,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:16:05,288 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-29 05:16:05,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:16:05,289 INFO L85 PathProgramCache]: Analyzing trace with hash 265463646, now seen corresponding path program 1 times [2021-10-29 05:16:05,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:16:05,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547588228] [2021-10-29 05:16:05,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:16:05,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:16:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:16:05,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:16:05,457 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:16:05,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547588228] [2021-10-29 05:16:05,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547588228] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:16:05,459 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:16:05,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:16:05,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797616423] [2021-10-29 05:16:05,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:16:05,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:16:05,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:16:05,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:16:05,471 INFO L87 Difference]: Start difference. First operand 170 states and 312 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-10-29 05:16:05,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:16:05,570 INFO L93 Difference]: Finished difference Result 174 states and 319 transitions. [2021-10-29 05:16:05,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:16:05,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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) Word has length 6 [2021-10-29 05:16:05,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:16:05,574 INFO L225 Difference]: With dead ends: 174 [2021-10-29 05:16:05,578 INFO L226 Difference]: Without dead ends: 174 [2021-10-29 05:16:05,579 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:16:05,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-10-29 05:16:05,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 167. [2021-10-29 05:16:05,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 164 states have (on average 1.8658536585365855) internal successors, (306), 166 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:05,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 306 transitions. [2021-10-29 05:16:05,621 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 306 transitions. Word has length 6 [2021-10-29 05:16:05,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:16:05,623 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 306 transitions. [2021-10-29 05:16:05,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-10-29 05:16:05,624 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 306 transitions. [2021-10-29 05:16:05,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 05:16:05,632 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:16:05,633 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:16:05,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:16:05,634 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-29 05:16:05,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:16:05,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1707466770, now seen corresponding path program 1 times [2021-10-29 05:16:05,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:16:05,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297747163] [2021-10-29 05:16:05,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:16:05,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:16:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:16:05,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:16:05,844 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:16:05,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297747163] [2021-10-29 05:16:05,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297747163] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:16:05,845 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:16:05,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:16:05,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465742049] [2021-10-29 05:16:05,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:16:05,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:16:05,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:16:05,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:16:05,849 INFO L87 Difference]: Start difference. First operand 167 states and 306 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:06,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:16:06,075 INFO L93 Difference]: Finished difference Result 223 states and 402 transitions. [2021-10-29 05:16:06,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-29 05:16:06,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-29 05:16:06,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:16:06,079 INFO L225 Difference]: With dead ends: 223 [2021-10-29 05:16:06,079 INFO L226 Difference]: Without dead ends: 223 [2021-10-29 05:16:06,080 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-29 05:16:06,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-10-29 05:16:06,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 183. [2021-10-29 05:16:06,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 180 states have (on average 1.8666666666666667) internal successors, (336), 182 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:06,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 336 transitions. [2021-10-29 05:16:06,100 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 336 transitions. Word has length 8 [2021-10-29 05:16:06,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:16:06,100 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 336 transitions. [2021-10-29 05:16:06,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:06,101 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 336 transitions. [2021-10-29 05:16:06,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:16:06,102 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:16:06,102 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:16:06,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 05:16:06,103 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-29 05:16:06,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:16:06,104 INFO L85 PathProgramCache]: Analyzing trace with hash -530980264, now seen corresponding path program 1 times [2021-10-29 05:16:06,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:16:06,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603234231] [2021-10-29 05:16:06,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:16:06,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:16:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:16:06,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:16:06,245 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:16:06,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603234231] [2021-10-29 05:16:06,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603234231] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:16:06,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:16:06,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:16:06,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311438416] [2021-10-29 05:16:06,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:16:06,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:16:06,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:16:06,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:16:06,249 INFO L87 Difference]: Start difference. First operand 183 states and 336 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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) [2021-10-29 05:16:06,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:16:06,314 INFO L93 Difference]: Finished difference Result 116 states and 175 transitions. [2021-10-29 05:16:06,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:16:06,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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) Word has length 10 [2021-10-29 05:16:06,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:16:06,316 INFO L225 Difference]: With dead ends: 116 [2021-10-29 05:16:06,316 INFO L226 Difference]: Without dead ends: 116 [2021-10-29 05:16:06,317 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:16:06,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-29 05:16:06,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 106. [2021-10-29 05:16:06,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 99 states have (on average 1.6767676767676767) internal successors, (166), 105 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:06,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 166 transitions. [2021-10-29 05:16:06,326 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 166 transitions. Word has length 10 [2021-10-29 05:16:06,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:16:06,327 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 166 transitions. [2021-10-29 05:16:06,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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) [2021-10-29 05:16:06,327 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 166 transitions. [2021-10-29 05:16:06,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 05:16:06,328 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:16:06,328 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:16:06,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-29 05:16:06,329 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-29 05:16:06,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:16:06,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1845212694, now seen corresponding path program 1 times [2021-10-29 05:16:06,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:16:06,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158665876] [2021-10-29 05:16:06,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:16:06,331 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:16:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:16:06,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:16:06,394 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:16:06,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158665876] [2021-10-29 05:16:06,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158665876] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:16:06,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:16:06,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:16:06,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206870164] [2021-10-29 05:16:06,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:16:06,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:16:06,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:16:06,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:16:06,398 INFO L87 Difference]: Start difference. First operand 106 states and 166 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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) [2021-10-29 05:16:06,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:16:06,443 INFO L93 Difference]: Finished difference Result 106 states and 161 transitions. [2021-10-29 05:16:06,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:16:06,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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) Word has length 11 [2021-10-29 05:16:06,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:16:06,446 INFO L225 Difference]: With dead ends: 106 [2021-10-29 05:16:06,446 INFO L226 Difference]: Without dead ends: 78 [2021-10-29 05:16:06,446 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:16:06,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-10-29 05:16:06,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-10-29 05:16:06,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 73 states have (on average 1.643835616438356) internal successors, (120), 77 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:06,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 120 transitions. [2021-10-29 05:16:06,453 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 120 transitions. Word has length 11 [2021-10-29 05:16:06,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:16:06,454 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 120 transitions. [2021-10-29 05:16:06,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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) [2021-10-29 05:16:06,455 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 120 transitions. [2021-10-29 05:16:06,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 05:16:06,456 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:16:06,456 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:16:06,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-29 05:16:06,457 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-29 05:16:06,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:16:06,457 INFO L85 PathProgramCache]: Analyzing trace with hash -734045976, now seen corresponding path program 1 times [2021-10-29 05:16:06,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:16:06,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937696443] [2021-10-29 05:16:06,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:16:06,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:16:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:16:06,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:16:06,529 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:16:06,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937696443] [2021-10-29 05:16:06,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937696443] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:16:06,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:16:06,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:16:06,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134510543] [2021-10-29 05:16:06,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:16:06,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:16:06,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:16:06,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:16:06,533 INFO L87 Difference]: Start difference. First operand 78 states and 120 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:06,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:16:06,602 INFO L93 Difference]: Finished difference Result 77 states and 119 transitions. [2021-10-29 05:16:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:16:06,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 05:16:06,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:16:06,605 INFO L225 Difference]: With dead ends: 77 [2021-10-29 05:16:06,605 INFO L226 Difference]: Without dead ends: 77 [2021-10-29 05:16:06,607 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:16:06,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-29 05:16:06,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-10-29 05:16:06,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 73 states have (on average 1.63013698630137) internal successors, (119), 76 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:06,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 119 transitions. [2021-10-29 05:16:06,629 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 119 transitions. Word has length 12 [2021-10-29 05:16:06,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:16:06,630 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 119 transitions. [2021-10-29 05:16:06,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:06,631 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 119 transitions. [2021-10-29 05:16:06,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 05:16:06,632 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:16:06,633 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:16:06,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-29 05:16:06,633 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-29 05:16:06,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:16:06,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1043572964, now seen corresponding path program 1 times [2021-10-29 05:16:06,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:16:06,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261538101] [2021-10-29 05:16:06,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:16:06,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:16:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:16:06,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:16:06,825 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:16:06,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261538101] [2021-10-29 05:16:06,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261538101] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:16:06,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:16:06,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:16:06,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424573372] [2021-10-29 05:16:06,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:16:06,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:16:06,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:16:06,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:16:06,829 INFO L87 Difference]: Start difference. First operand 77 states and 119 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:06,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:16:06,900 INFO L93 Difference]: Finished difference Result 73 states and 110 transitions. [2021-10-29 05:16:06,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:16:06,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2021-10-29 05:16:06,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:16:06,903 INFO L225 Difference]: With dead ends: 73 [2021-10-29 05:16:06,903 INFO L226 Difference]: Without dead ends: 70 [2021-10-29 05:16:06,904 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:16:06,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-10-29 05:16:06,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2021-10-29 05:16:06,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 65 states have (on average 1.6307692307692307) internal successors, (106), 67 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:06,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 106 transitions. [2021-10-29 05:16:06,909 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 106 transitions. Word has length 14 [2021-10-29 05:16:06,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:16:06,909 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 106 transitions. [2021-10-29 05:16:06,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:06,910 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 106 transitions. [2021-10-29 05:16:06,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 05:16:06,913 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:16:06,913 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:16:06,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-29 05:16:06,914 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-29 05:16:06,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:16:06,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1233110404, now seen corresponding path program 1 times [2021-10-29 05:16:06,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:16:06,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421702667] [2021-10-29 05:16:06,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:16:06,917 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:16:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:16:07,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:16:07,026 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:16:07,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421702667] [2021-10-29 05:16:07,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421702667] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:16:07,027 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:16:07,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:16:07,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61893288] [2021-10-29 05:16:07,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:16:07,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:16:07,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:16:07,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:16:07,031 INFO L87 Difference]: Start difference. First operand 68 states and 106 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:07,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:16:07,106 INFO L93 Difference]: Finished difference Result 63 states and 97 transitions. [2021-10-29 05:16:07,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:16:07,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2021-10-29 05:16:07,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:16:07,108 INFO L225 Difference]: With dead ends: 63 [2021-10-29 05:16:07,108 INFO L226 Difference]: Without dead ends: 63 [2021-10-29 05:16:07,109 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:16:07,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-10-29 05:16:07,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-10-29 05:16:07,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 61 states have (on average 1.5901639344262295) internal successors, (97), 62 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:07,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 97 transitions. [2021-10-29 05:16:07,113 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 97 transitions. Word has length 15 [2021-10-29 05:16:07,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:16:07,115 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 97 transitions. [2021-10-29 05:16:07,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:07,117 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 97 transitions. [2021-10-29 05:16:07,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 05:16:07,124 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:16:07,126 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:16:07,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-29 05:16:07,131 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-29 05:16:07,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:16:07,135 INFO L85 PathProgramCache]: Analyzing trace with hash 735704190, now seen corresponding path program 1 times [2021-10-29 05:16:07,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:16:07,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631616561] [2021-10-29 05:16:07,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:16:07,136 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:16:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:16:07,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:16:07,265 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:16:07,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631616561] [2021-10-29 05:16:07,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631616561] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:16:07,266 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:16:07,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 05:16:07,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028987405] [2021-10-29 05:16:07,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 05:16:07,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:16:07,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 05:16:07,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:16:07,268 INFO L87 Difference]: Start difference. First operand 63 states and 97 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:07,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:16:07,395 INFO L93 Difference]: Finished difference Result 59 states and 90 transitions. [2021-10-29 05:16:07,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 05:16:07,396 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 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 18 [2021-10-29 05:16:07,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:16:07,397 INFO L225 Difference]: With dead ends: 59 [2021-10-29 05:16:07,397 INFO L226 Difference]: Without dead ends: 47 [2021-10-29 05:16:07,398 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-10-29 05:16:07,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-29 05:16:07,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-29 05:16:07,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 46 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:07,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2021-10-29 05:16:07,400 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 18 [2021-10-29 05:16:07,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:16:07,401 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2021-10-29 05:16:07,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:07,401 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2021-10-29 05:16:07,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-29 05:16:07,402 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:16:07,402 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:16:07,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-29 05:16:07,403 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION, t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-29 05:16:07,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:16:07,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1606115497, now seen corresponding path program 1 times [2021-10-29 05:16:07,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:16:07,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074651940] [2021-10-29 05:16:07,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:16:07,404 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:16:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:16:07,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:16:07,727 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:16:07,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074651940] [2021-10-29 05:16:07,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074651940] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:16:07,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:16:07,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:16:07,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883163645] [2021-10-29 05:16:07,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:16:07,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:16:07,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:16:07,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:16:07,730 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:07,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:16:07,798 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2021-10-29 05:16:07,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:16:07,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2021-10-29 05:16:07,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:16:07,800 INFO L225 Difference]: With dead ends: 34 [2021-10-29 05:16:07,800 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:16:07,800 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 6 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:16:07,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:16:07,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:16:07,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:07,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:16:07,801 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2021-10-29 05:16:07,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:16:07,801 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:16:07,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:16:07,802 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:16:07,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:16:07,805 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-29 05:16:07,806 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:16:07,806 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:16:07,806 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:16:07,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:16:07,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:16:07,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:16:07,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-29 05:16:07,811 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:16:07,817 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-29 05:16:07,817 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:16:07,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:16:07 BasicIcfg [2021-10-29 05:16:07,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:16:07,820 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:16:07,821 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:16:07,821 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:16:07,821 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:15:53" (3/4) ... [2021-10-29 05:16:07,825 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:16:07,832 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-10-29 05:16:07,838 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-29 05:16:07,838 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 05:16:07,839 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:16:07,839 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:16:07,879 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec60d58-e1db-4175-ac5b-98f184b51f3b/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:16:07,879 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:16:07,881 INFO L168 Benchmark]: Toolchain (without parser) took 15745.71 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 51.3 MB in the beginning and 82.8 MB in the end (delta: -31.5 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:16:07,882 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory was 69.4 MB in the beginning and 69.3 MB in the end (delta: 43.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:16:07,882 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.36 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 51.0 MB in the beginning and 75.6 MB in the end (delta: -24.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:16:07,883 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.64 ms. Allocated memory is still 109.1 MB. Free memory was 75.6 MB in the beginning and 73.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:16:07,883 INFO L168 Benchmark]: Boogie Preprocessor took 36.57 ms. Allocated memory is still 109.1 MB. Free memory was 73.5 MB in the beginning and 72.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:16:07,884 INFO L168 Benchmark]: RCFGBuilder took 563.36 ms. Allocated memory is still 109.1 MB. Free memory was 72.1 MB in the beginning and 58.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:16:07,884 INFO L168 Benchmark]: TraceAbstraction took 14312.66 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 58.1 MB in the beginning and 85.9 MB in the end (delta: -27.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:16:07,885 INFO L168 Benchmark]: Witness Printer took 58.89 ms. Allocated memory is still 132.1 MB. Free memory was 85.9 MB in the beginning and 82.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:16:07,888 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory was 69.4 MB in the beginning and 69.3 MB in the end (delta: 43.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 701.36 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 51.0 MB in the beginning and 75.6 MB in the end (delta: -24.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.64 ms. Allocated memory is still 109.1 MB. Free memory was 75.6 MB in the beginning and 73.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.57 ms. Allocated memory is still 109.1 MB. Free memory was 73.5 MB in the beginning and 72.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 563.36 ms. Allocated memory is still 109.1 MB. Free memory was 72.1 MB in the beginning and 58.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14312.66 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 58.1 MB in the beginning and 85.9 MB in the end (delta: -27.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 58.89 ms. Allocated memory is still 132.1 MB. Free memory was 85.9 MB in the beginning and 82.8 MB in the end (delta: 3.1 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: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.9s, 115 PlacesBefore, 33 PlacesAfterwards, 116 TransitionsBefore, 34 TransitionsAfterwards, 2448 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 17 ConcurrentYvCompositions, 0 ChoiceCompositions, 112 TotalNumberOfCompositions, 7430 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3269, positive: 2981, positive conditional: 0, positive unconditional: 2981, negative: 288, negative conditional: 0, negative unconditional: 288, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1870, positive: 1785, positive conditional: 0, positive unconditional: 1785, negative: 85, negative conditional: 0, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1870, positive: 1679, positive conditional: 0, positive unconditional: 1679, negative: 191, negative conditional: 0, negative unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 191, positive: 106, positive conditional: 0, positive unconditional: 106, negative: 85, negative conditional: 0, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 449, positive: 176, positive conditional: 0, positive unconditional: 176, negative: 273, negative conditional: 0, negative unconditional: 273, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3269, positive: 1196, positive conditional: 0, positive unconditional: 1196, negative: 203, negative conditional: 0, negative unconditional: 203, unknown: 1870, unknown conditional: 0, unknown unconditional: 1870] , Statistics on independence cache: Total cache size (in pairs): 219, Positive cache size: 179, Positive conditional cache size: 0, Positive unconditional cache size: 179, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: 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 with 1 thread instances CFG has 3 procedures, 161 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 14.0s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 247 SDtfs, 339 SDslu, 321 SDs, 0 SdLazy, 262 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 13 SyntacticMatches, 7 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=3, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 59 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 799 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-29 05:16:07,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec60d58-e1db-4175-ac5b-98f184b51f3b/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...