./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.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_bb616950-d00f-4c20-819b-c2f322bff76e/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/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_bb616950-d00f-4c20-819b-c2f322bff76e/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/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_bb616950-d00f-4c20-819b-c2f322bff76e/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 b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 05:21:32,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:21:32,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:21:32,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:21:32,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:21:32,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:21:32,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:21:32,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:21:32,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:21:32,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:21:32,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:21:32,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:21:32,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:21:32,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:21:32,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:21:32,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:21:32,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:21:32,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:21:32,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:21:32,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:21:32,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:21:32,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:21:32,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:21:32,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:21:32,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:21:32,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:21:32,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:21:32,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:21:32,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:21:32,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:21:32,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:21:32,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:21:32,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:21:32,588 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:21:32,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:21:32,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:21:32,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:21:32,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:21:32,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:21:32,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:21:32,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:21:32,594 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:21:32,636 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:21:32,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:21:32,637 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:21:32,638 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:21:32,638 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:21:32,638 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:21:32,638 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:21:32,639 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:21:32,639 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:21:32,639 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:21:32,640 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:21:32,641 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:21:32,641 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:21:32,641 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:21:32,642 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:21:32,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:21:32,643 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:21:32,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:21:32,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:21:32,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:21:32,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:21:32,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:21:32,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:21:32,645 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:21:32,645 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:21:32,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:21:32,646 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:21:32,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:21:32,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:21:32,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:21:32,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:21:32,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:21:32,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:21:32,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:21:32,649 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:21:32,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:21:32,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:21:32,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:21:32,651 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:21:32,651 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_bb616950-d00f-4c20-819b-c2f322bff76e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 [2021-10-29 05:21:32,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:21:32,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:21:32,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:21:32,971 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:21:32,972 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:21:32,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2021-10-29 05:21:33,057 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/bin/utaipan-SDwSMHVbGG/data/58cbb803f/281a4809bbea44bea1c7f2f4984330fb/FLAG83fc19bd3 [2021-10-29 05:21:33,492 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:21:33,492 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2021-10-29 05:21:33,499 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/bin/utaipan-SDwSMHVbGG/data/58cbb803f/281a4809bbea44bea1c7f2f4984330fb/FLAG83fc19bd3 [2021-10-29 05:21:33,888 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/bin/utaipan-SDwSMHVbGG/data/58cbb803f/281a4809bbea44bea1c7f2f4984330fb [2021-10-29 05:21:33,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:21:33,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:21:33,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:21:33,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:21:33,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:21:33,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:21:33" (1/1) ... [2021-10-29 05:21:33,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15915bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:33, skipping insertion in model container [2021-10-29 05:21:33,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:21:33" (1/1) ... [2021-10-29 05:21:33,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:21:33,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:21:34,134 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_bb616950-d00f-4c20-819b-c2f322bff76e/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2021-10-29 05:21:34,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:21:34,162 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:21:34,175 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2021-10-29 05:21:34,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:21:34,206 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:21:34,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:34 WrapperNode [2021-10-29 05:21:34,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:21:34,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:21:34,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:21:34,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:21:34,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:34" (1/1) ... [2021-10-29 05:21:34,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:34" (1/1) ... [2021-10-29 05:21:34,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:21:34,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:21:34,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:21:34,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:21:34,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:34" (1/1) ... [2021-10-29 05:21:34,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:34" (1/1) ... [2021-10-29 05:21:34,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:34" (1/1) ... [2021-10-29 05:21:34,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:34" (1/1) ... [2021-10-29 05:21:34,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:34" (1/1) ... [2021-10-29 05:21:34,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:34" (1/1) ... [2021-10-29 05:21:34,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:34" (1/1) ... [2021-10-29 05:21:34,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:21:34,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:21:34,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:21:34,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:21:34,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:34" (1/1) ... [2021-10-29 05:21:34,351 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:21:34,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:21:34,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:21:34,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:21:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:21:34,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:21:34,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:21:34,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:21:34,899 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:21:34,899 INFO L299 CfgBuilder]: Removed 42 assume(true) statements. [2021-10-29 05:21:34,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:21:34 BoogieIcfgContainer [2021-10-29 05:21:34,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:21:34,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:21:34,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:21:34,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:21:34,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:21:33" (1/3) ... [2021-10-29 05:21:34,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6026bc21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:21:34, skipping insertion in model container [2021-10-29 05:21:34,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:34" (2/3) ... [2021-10-29 05:21:34,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6026bc21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:21:34, skipping insertion in model container [2021-10-29 05:21:34,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:21:34" (3/3) ... [2021-10-29 05:21:34,911 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i [2021-10-29 05:21:34,916 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:21:34,916 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2021-10-29 05:21:34,968 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:21:34,975 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 05:21:34,976 INFO L340 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2021-10-29 05:21:34,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 69 states have (on average 1.7391304347826086) internal successors, (120), 87 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 05:21:34,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:21:34,998 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:34,999 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:35,000 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-29 05:21:35,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:35,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1658517419, now seen corresponding path program 1 times [2021-10-29 05:21:35,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:35,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280623152] [2021-10-29 05:21:35,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:35,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:35,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:35,239 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 05:21:35,240 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:35,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280623152] [2021-10-29 05:21:35,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280623152] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:35,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:35,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:35,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376095399] [2021-10-29 05:21:35,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:35,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:35,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:35,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:35,270 INFO L87 Difference]: Start difference. First operand has 88 states, 69 states have (on average 1.7391304347826086) internal successors, (120), 87 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) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 05:21:35,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:35,450 INFO L93 Difference]: Finished difference Result 168 states and 223 transitions. [2021-10-29 05:21:35,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:35,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 05:21:35,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:35,459 INFO L225 Difference]: With dead ends: 168 [2021-10-29 05:21:35,459 INFO L226 Difference]: Without dead ends: 83 [2021-10-29 05:21:35,462 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:35,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-10-29 05:21:35,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-10-29 05:21:35,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 66 states have (on average 1.303030303030303) internal successors, (86), 82 states have internal predecessors, (86), 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 05:21:35,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 86 transitions. [2021-10-29 05:21:35,501 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 86 transitions. Word has length 10 [2021-10-29 05:21:35,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:35,502 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 86 transitions. [2021-10-29 05:21:35,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 05:21:35,503 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 86 transitions. [2021-10-29 05:21:35,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 05:21:35,503 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:35,503 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:35,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:21:35,504 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-29 05:21:35,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:35,505 INFO L85 PathProgramCache]: Analyzing trace with hash -402216392, now seen corresponding path program 1 times [2021-10-29 05:21:35,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:35,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796964563] [2021-10-29 05:21:35,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:35,506 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:35,570 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 05:21:35,570 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:35,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796964563] [2021-10-29 05:21:35,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796964563] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:35,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:35,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:21:35,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322119933] [2021-10-29 05:21:35,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:21:35,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:35,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:21:35,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:35,575 INFO L87 Difference]: Start difference. First operand 83 states and 86 transitions. Second operand has 5 states, 5 states have (on average 2.4) 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 05:21:35,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:35,699 INFO L93 Difference]: Finished difference Result 83 states and 86 transitions. [2021-10-29 05:21:35,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:21:35,699 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) 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 05:21:35,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:35,701 INFO L225 Difference]: With dead ends: 83 [2021-10-29 05:21:35,701 INFO L226 Difference]: Without dead ends: 67 [2021-10-29 05:21:35,702 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:21:35,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-10-29 05:21:35,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-10-29 05:21:35,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 58 states have (on average 1.206896551724138) internal successors, (70), 66 states have internal predecessors, (70), 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 05:21:35,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2021-10-29 05:21:35,713 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 12 [2021-10-29 05:21:35,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:35,714 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2021-10-29 05:21:35,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) 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 05:21:35,714 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2021-10-29 05:21:35,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 05:21:35,715 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:35,715 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:35,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:21:35,716 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-29 05:21:35,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:35,717 INFO L85 PathProgramCache]: Analyzing trace with hash 535082762, now seen corresponding path program 1 times [2021-10-29 05:21:35,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:35,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722862175] [2021-10-29 05:21:35,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:35,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:35,832 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 05:21:35,832 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:35,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722862175] [2021-10-29 05:21:35,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722862175] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:35,833 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:35,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:21:35,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294534200] [2021-10-29 05:21:35,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:21:35,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:35,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:21:35,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:21:35,835 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 05:21:36,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:36,015 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2021-10-29 05:21:36,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:21:36,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 05:21:36,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:36,021 INFO L225 Difference]: With dead ends: 88 [2021-10-29 05:21:36,021 INFO L226 Difference]: Without dead ends: 80 [2021-10-29 05:21:36,021 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 05:21:36,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-29 05:21:36,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 74. [2021-10-29 05:21:36,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 66 states have (on average 1.196969696969697) internal successors, (79), 73 states have internal predecessors, (79), 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 05:21:36,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2021-10-29 05:21:36,046 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 15 [2021-10-29 05:21:36,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:36,047 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2021-10-29 05:21:36,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 05:21:36,047 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2021-10-29 05:21:36,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-29 05:21:36,048 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:36,048 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 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 05:21:36,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 05:21:36,049 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-29 05:21:36,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:36,050 INFO L85 PathProgramCache]: Analyzing trace with hash -330656293, now seen corresponding path program 1 times [2021-10-29 05:21:36,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:36,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531153369] [2021-10-29 05:21:36,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:36,051 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:36,173 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:21:36,174 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:36,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531153369] [2021-10-29 05:21:36,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531153369] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 05:21:36,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679165080] [2021-10-29 05:21:36,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:36,175 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:21:36,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:21:36,177 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:21:36,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 05:21:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:36,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:21:36,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:36,439 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:21:36,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:36,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:21:36,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679165080] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:21:36,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [957683593] [2021-10-29 05:21:36,651 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2021-10-29 05:21:36,651 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 05:21:36,660 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 05:21:36,668 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 05:21:36,668 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 05:21:36,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:36,761 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:21:36,761 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:36,762 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-10-29 05:21:36,767 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 05:21:36,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:36,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-29 05:21:36,775 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-10-29 05:21:36,801 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_8|], 10=[|v_#valid_9|]} [2021-10-29 05:21:36,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:21:36,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-10-29 05:21:36,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:36,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-10-29 05:21:36,823 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:36,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-10-29 05:21:36,825 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 05:21:36,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:36,843 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:36,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:21:36,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:21:36,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:21:36,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 05:21:36,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-29 05:21:36,860 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:36,862 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:21:36,863 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:36,864 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 05:21:36,864 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 05:21:36,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:36,875 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:36,877 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:36,880 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-10-29 05:21:36,880 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 05:21:36,881 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:110, output treesize:95 [2021-10-29 05:21:36,927 INFO L180 QuantifierPusher]: treesize reduction 40, result has 78.7 percent of original size [2021-10-29 05:21:36,951 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-10-29 05:21:36,970 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:36,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-10-29 05:21:37,007 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:37,027 INFO L185 QuantifierPusher]: treesize reduction 5, result has 96.2 percent of original size 126 [2021-10-29 05:21:37,051 INFO L180 QuantifierPusher]: treesize reduction 13, result has 92.4 percent of original size [2021-10-29 05:21:37,064 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size 132 [2021-10-29 05:21:37,083 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.1 percent of original size [2021-10-29 05:21:37,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-10-29 05:21:37,114 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:37,122 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-10-29 05:21:37,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:37,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:37,172 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:37,173 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:37,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:37,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:37,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:37,205 INFO L180 QuantifierPusher]: treesize reduction 32, result has 70.9 percent of original size [2021-10-29 05:21:37,212 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-10-29 05:21:37,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:37,223 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-29 05:21:37,227 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:37,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-10-29 05:21:37,247 INFO L180 QuantifierPusher]: treesize reduction 32, result has 70.9 percent of original size [2021-10-29 05:21:37,258 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-10-29 05:21:37,264 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:37,273 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-29 05:21:37,279 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 05:21:37,285 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-10-29 05:21:37,286 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:37,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:37,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:37,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:37,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:37,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:37,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:37,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:37,378 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 05:21:39,437 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 05:21:39,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-29 05:21:39,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2021-10-29 05:21:39,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056764805] [2021-10-29 05:21:39,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:21:39,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:39,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:21:39,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2021-10-29 05:21:39,440 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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 05:21:39,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:39,610 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2021-10-29 05:21:39,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 05:21:39,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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 26 [2021-10-29 05:21:39,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:39,615 INFO L225 Difference]: With dead ends: 80 [2021-10-29 05:21:39,615 INFO L226 Difference]: Without dead ends: 68 [2021-10-29 05:21:39,617 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 51 SyntacticMatches, 13 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2021-10-29 05:21:39,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-10-29 05:21:39,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 53. [2021-10-29 05:21:39,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 51 states have (on average 1.0980392156862746) internal successors, (56), 52 states have internal predecessors, (56), 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 05:21:39,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2021-10-29 05:21:39,634 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 26 [2021-10-29 05:21:39,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:39,634 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2021-10-29 05:21:39,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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 05:21:39,635 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2021-10-29 05:21:39,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-29 05:21:39,637 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:39,637 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:39,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-29 05:21:39,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-10-29 05:21:39,852 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-29 05:21:39,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:39,852 INFO L85 PathProgramCache]: Analyzing trace with hash 418888406, now seen corresponding path program 1 times [2021-10-29 05:21:39,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:39,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182276611] [2021-10-29 05:21:39,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:39,853 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:39,909 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 05:21:39,910 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:39,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182276611] [2021-10-29 05:21:39,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182276611] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:39,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:39,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:39,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823570019] [2021-10-29 05:21:39,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:39,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:39,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:39,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:39,912 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 05:21:39,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:39,954 INFO L93 Difference]: Finished difference Result 84 states and 88 transitions. [2021-10-29 05:21:39,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:39,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 38 [2021-10-29 05:21:39,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:39,956 INFO L225 Difference]: With dead ends: 84 [2021-10-29 05:21:39,956 INFO L226 Difference]: Without dead ends: 53 [2021-10-29 05:21:39,957 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:39,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-29 05:21:39,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-10-29 05:21:39,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 51 states have (on average 1.0784313725490196) internal successors, (55), 52 states have internal predecessors, (55), 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 05:21:39,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2021-10-29 05:21:39,967 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 38 [2021-10-29 05:21:39,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:39,967 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2021-10-29 05:21:39,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 05:21:39,968 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2021-10-29 05:21:39,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-29 05:21:39,970 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:39,970 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:39,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-29 05:21:39,972 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-29 05:21:39,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:39,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1232227253, now seen corresponding path program 1 times [2021-10-29 05:21:39,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:39,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468335831] [2021-10-29 05:21:39,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:39,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:40,079 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 05:21:40,079 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:40,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468335831] [2021-10-29 05:21:40,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468335831] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:40,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:40,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:21:40,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140728313] [2021-10-29 05:21:40,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:21:40,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:40,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:21:40,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:21:40,081 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 05:21:40,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:40,127 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2021-10-29 05:21:40,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:21:40,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 39 [2021-10-29 05:21:40,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:40,129 INFO L225 Difference]: With dead ends: 55 [2021-10-29 05:21:40,130 INFO L226 Difference]: Without dead ends: 53 [2021-10-29 05:21:40,130 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 05:21:40,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-29 05:21:40,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2021-10-29 05:21:40,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.06) internal successors, (53), 50 states have internal predecessors, (53), 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 05:21:40,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2021-10-29 05:21:40,143 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 39 [2021-10-29 05:21:40,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:40,144 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2021-10-29 05:21:40,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 05:21:40,145 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2021-10-29 05:21:40,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-29 05:21:40,147 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:40,147 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:40,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-29 05:21:40,151 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-10-29 05:21:40,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:40,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1240746286, now seen corresponding path program 1 times [2021-10-29 05:21:40,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:40,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412270391] [2021-10-29 05:21:40,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:40,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:40,229 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 05:21:40,230 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:40,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412270391] [2021-10-29 05:21:40,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412270391] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:40,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:40,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:21:40,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964925417] [2021-10-29 05:21:40,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:21:40,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:40,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:21:40,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:40,233 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 05:21:40,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:40,297 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2021-10-29 05:21:40,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:21:40,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 41 [2021-10-29 05:21:40,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:40,298 INFO L225 Difference]: With dead ends: 58 [2021-10-29 05:21:40,298 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:21:40,299 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:21:40,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:21:40,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:21:40,299 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 05:21:40,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:21:40,299 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2021-10-29 05:21:40,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:40,299 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:21:40,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 05:21:40,300 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:21:40,300 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:21:40,301 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:21:40,302 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:21:40,302 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:21:40,302 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:21:40,302 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:21:40,302 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:21:40,303 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:21:40,303 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:21:40,303 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:21:40,303 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:21:40,303 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:21:40,304 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:21:40,304 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:21:40,304 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:21:40,304 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:21:40,304 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:21:40,304 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:21:40,305 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:21:40,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-29 05:21:40,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 05:21:40,308 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,340 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,351 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,354 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,360 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,365 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:21:40,649 INFO L853 garLoopResultBuilder]: At program point L18-17(lines 17 22) the Hoare annotation is: (and (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-29 05:21:40,649 INFO L857 garLoopResultBuilder]: For program point L18-18(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:21:40,649 INFO L853 garLoopResultBuilder]: At program point L18-20(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (<= 1 ULTIMATE.start_main_~cp~0) (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) [2021-10-29 05:21:40,649 INFO L857 garLoopResultBuilder]: For program point L18-21(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:21:40,649 INFO L853 garLoopResultBuilder]: At program point L18-23(line 55) the Hoare annotation is: (and (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) [2021-10-29 05:21:40,650 INFO L857 garLoopResultBuilder]: For program point L18-24(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:21:40,650 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,650 INFO L853 garLoopResultBuilder]: At program point L18-26(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0)) [2021-10-29 05:21:40,650 INFO L857 garLoopResultBuilder]: For program point L18-27(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:21:40,650 INFO L853 garLoopResultBuilder]: At program point L18-29(line 58) the Hoare annotation is: (and (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-29 05:21:40,650 INFO L857 garLoopResultBuilder]: For program point L18-30(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:21:40,650 INFO L857 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,651 INFO L857 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,651 INFO L853 garLoopResultBuilder]: At program point L18-32(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (= ULTIMATE.start_main_~c~0 0)) [2021-10-29 05:21:40,651 INFO L857 garLoopResultBuilder]: For program point L19-2(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,651 INFO L857 garLoopResultBuilder]: For program point L18-33(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:21:40,651 INFO L857 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,651 INFO L857 garLoopResultBuilder]: For program point L19-4(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,651 INFO L857 garLoopResultBuilder]: For program point L19-5(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,652 INFO L857 garLoopResultBuilder]: For program point L18-36(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:21:40,652 INFO L857 garLoopResultBuilder]: For program point L19-6(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,652 INFO L857 garLoopResultBuilder]: For program point L19-7(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,652 INFO L853 garLoopResultBuilder]: At program point L18-38(lines 17 22) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse1 (< 0 (+ ULTIMATE.start_main_~scheme~0 1))) (.cse2 (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) (.cse3 (<= (+ ULTIMATE.start_main_~c~0 2) ULTIMATE.start_main_~tokenlen~0)) (.cse4 (<= 1 ULTIMATE.start_main_~cp~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~c~0 0)) (and .cse0 (<= 1 ULTIMATE.start_main_~c~0) .cse1 .cse2 .cse3 .cse4))) [2021-10-29 05:21:40,652 INFO L857 garLoopResultBuilder]: For program point L19-8(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,652 INFO L857 garLoopResultBuilder]: For program point L18-39(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:21:40,652 INFO L857 garLoopResultBuilder]: For program point L19-9(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,653 INFO L857 garLoopResultBuilder]: For program point L19-10(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,653 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,653 INFO L853 garLoopResultBuilder]: At program point L18-41(lines 17 22) the Hoare annotation is: (let ((.cse0 (< 0 (+ ULTIMATE.start_main_~scheme~0 1))) (.cse1 (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) (.cse2 (<= (+ ULTIMATE.start_main_~c~0 2) ULTIMATE.start_main_~tokenlen~0)) (.cse3 (<= 1 ULTIMATE.start_main_~cp~0)) (.cse4 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)))) (or (and (<= 1 ULTIMATE.start_main_~c~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~c~0 0)))) [2021-10-29 05:21:40,653 INFO L857 garLoopResultBuilder]: For program point L19-11(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,653 INFO L857 garLoopResultBuilder]: For program point L18-42(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:21:40,653 INFO L857 garLoopResultBuilder]: For program point L19-12(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,653 INFO L857 garLoopResultBuilder]: For program point L19-13(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,654 INFO L853 garLoopResultBuilder]: At program point L18-44(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~c~0) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-29 05:21:40,654 INFO L857 garLoopResultBuilder]: For program point L69(lines 69 75) no Hoare annotation was computed. [2021-10-29 05:21:40,654 INFO L857 garLoopResultBuilder]: For program point L19-14(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,654 INFO L857 garLoopResultBuilder]: For program point L18-45(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:21:40,654 INFO L857 garLoopResultBuilder]: For program point L36(lines 25 83) no Hoare annotation was computed. [2021-10-29 05:21:40,654 INFO L857 garLoopResultBuilder]: For program point L19-15(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,654 INFO L853 garLoopResultBuilder]: At program point L69-1(lines 69 75) the Hoare annotation is: (let ((.cse0 (< 0 (+ ULTIMATE.start_main_~scheme~0 1))) (.cse1 (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) (.cse2 (<= 1 ULTIMATE.start_main_~cp~0)) (.cse3 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)))) (or (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~c~0 0)) (and (<= 1 ULTIMATE.start_main_~c~0) .cse0 .cse1 .cse2 .cse3))) [2021-10-29 05:21:40,655 INFO L853 garLoopResultBuilder]: At program point L18-47(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~c~0) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-29 05:21:40,655 INFO L857 garLoopResultBuilder]: For program point L19-16(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,655 INFO L857 garLoopResultBuilder]: For program point L18-48(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:21:40,655 INFO L857 garLoopResultBuilder]: For program point L19-17(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,655 INFO L853 garLoopResultBuilder]: At program point L18-50(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~c~0) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0)) [2021-10-29 05:21:40,655 INFO L857 garLoopResultBuilder]: For program point L18-51(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:21:40,655 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 05:21:40,656 INFO L857 garLoopResultBuilder]: For program point L37(lines 25 83) no Hoare annotation was computed. [2021-10-29 05:21:40,656 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,656 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,656 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,656 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,656 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 05:21:40,656 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,657 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,657 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,657 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,657 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 80) no Hoare annotation was computed. [2021-10-29 05:21:40,657 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,657 INFO L857 garLoopResultBuilder]: For program point L61(lines 61 79) no Hoare annotation was computed. [2021-10-29 05:21:40,657 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,658 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,658 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,658 INFO L853 garLoopResultBuilder]: At program point L47-1(lines 17 52) the Hoare annotation is: (and (< ULTIMATE.start_main_~cp~0 ULTIMATE.start_main_~urilen~0) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-29 05:21:40,658 INFO L857 garLoopResultBuilder]: For program point L47-2(lines 47 52) no Hoare annotation was computed. [2021-10-29 05:21:40,658 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,658 INFO L860 garLoopResultBuilder]: At program point L81(lines 25 83) the Hoare annotation is: true [2021-10-29 05:21:40,658 INFO L857 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2021-10-29 05:21:40,659 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,659 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-29 05:21:40,659 INFO L853 garLoopResultBuilder]: At program point L65-1(lines 17 77) the Hoare annotation is: (let ((.cse0 (< ULTIMATE.start_main_~cp~0 ULTIMATE.start_main_~urilen~0)) (.cse1 (< 0 (+ ULTIMATE.start_main_~scheme~0 1))) (.cse2 (<= 1 ULTIMATE.start_main_~cp~0)) (.cse3 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)))) (or (and .cse0 (<= 1 ULTIMATE.start_main_~c~0) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~c~0 0)))) [2021-10-29 05:21:40,659 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,659 INFO L860 garLoopResultBuilder]: At program point L82(lines 24 83) the Hoare annotation is: true [2021-10-29 05:21:40,659 INFO L857 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2021-10-29 05:21:40,659 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-10-29 05:21:40,660 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-10-29 05:21:40,660 INFO L857 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:21:40,660 INFO L853 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (<= 1 ULTIMATE.start_main_~cp~0) (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) [2021-10-29 05:21:40,660 INFO L857 garLoopResultBuilder]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:21:40,660 INFO L853 garLoopResultBuilder]: At program point L18-5(lines 17 22) the Hoare annotation is: (and (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) [2021-10-29 05:21:40,660 INFO L857 garLoopResultBuilder]: For program point L18-6(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:21:40,660 INFO L853 garLoopResultBuilder]: At program point L18-8(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (<= 1 ULTIMATE.start_main_~cp~0) (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) [2021-10-29 05:21:40,661 INFO L857 garLoopResultBuilder]: For program point L18-9(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:21:40,661 INFO L857 garLoopResultBuilder]: For program point L18-12(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:21:40,661 INFO L853 garLoopResultBuilder]: At program point L18-14(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0)) [2021-10-29 05:21:40,661 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-29 05:21:40,661 INFO L857 garLoopResultBuilder]: For program point L18-15(lines 18 20) no Hoare annotation was computed. [2021-10-29 05:21:40,661 INFO L857 garLoopResultBuilder]: For program point L35-1(lines 25 83) no Hoare annotation was computed. [2021-10-29 05:21:40,664 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:40,666 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:21:40,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:21:40 BoogieIcfgContainer [2021-10-29 05:21:40,706 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:21:40,706 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:21:40,706 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:21:40,706 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:21:40,707 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:21:34" (3/4) ... [2021-10-29 05:21:40,710 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:21:40,728 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2021-10-29 05:21:40,728 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 05:21:40,729 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:21:40,729 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:21:40,800 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:21:40,800 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:21:40,801 INFO L168 Benchmark]: Toolchain (without parser) took 6908.53 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 88.7 MB in the beginning and 92.9 MB in the end (delta: -4.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:21:40,801 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 125.8 MB. Free memory was 96.2 MB in the beginning and 96.1 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:21:40,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.53 ms. Allocated memory is still 125.8 MB. Free memory was 88.5 MB in the beginning and 98.4 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:21:40,802 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.30 ms. Allocated memory is still 125.8 MB. Free memory was 98.4 MB in the beginning and 96.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:21:40,802 INFO L168 Benchmark]: Boogie Preprocessor took 52.28 ms. Allocated memory is still 125.8 MB. Free memory was 96.3 MB in the beginning and 95.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:21:40,803 INFO L168 Benchmark]: RCFGBuilder took 571.61 ms. Allocated memory is still 125.8 MB. Free memory was 95.0 MB in the beginning and 78.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:21:40,803 INFO L168 Benchmark]: TraceAbstraction took 5801.91 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 78.3 MB in the beginning and 97.8 MB in the end (delta: -19.6 MB). Peak memory consumption was 61.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:21:40,804 INFO L168 Benchmark]: Witness Printer took 93.75 ms. Allocated memory is still 151.0 MB. Free memory was 97.8 MB in the beginning and 92.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:21:40,807 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 125.8 MB. Free memory was 96.2 MB in the beginning and 96.1 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 309.53 ms. Allocated memory is still 125.8 MB. Free memory was 88.5 MB in the beginning and 98.4 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.30 ms. Allocated memory is still 125.8 MB. Free memory was 98.4 MB in the beginning and 96.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.28 ms. Allocated memory is still 125.8 MB. Free memory was 96.3 MB in the beginning and 95.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 571.61 ms. Allocated memory is still 125.8 MB. Free memory was 95.0 MB in the beginning and 78.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5801.91 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 78.3 MB in the beginning and 97.8 MB in the end (delta: -19.6 MB). Peak memory consumption was 61.4 MB. Max. memory is 16.1 GB. * Witness Printer took 93.75 ms. Allocated memory is still 151.0 MB. Free memory was 97.8 MB in the beginning and 92.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 88 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 376 SDtfs, 227 SDslu, 313 SDs, 0 SdLazy, 331 SolverSat, 199 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 63 SyntacticMatches, 13 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88occurred in iteration=0, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 23 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 20 PreInvPairs, 48 NumberOfFragments, 443 HoareAnnotationTreeSize, 20 FomulaSimplifications, 331 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 20 FomulaSimplificationsInter, 300 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 207 NumberOfCodeBlocks, 207 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 224 ConstructedInterpolants, 0 QuantifiedInterpolants, 462 SizeOfPredicates, 4 NumberOfNonLiveVariables, 96 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 3/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((1 <= c && 0 < scheme + 1) && cp + 1 < urilen) && 1 <= cp) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((0 < scheme + 1 && 1 <= cp) && !(0 == cond)) && cp + 1 <= urilen - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((1 <= cond && 1 <= c) && 0 < scheme + 1) && cp + 1 < urilen) && 1 <= cp - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((((1 <= cond && 0 < scheme + 1) && cp + 1 < urilen) && c + 2 <= tokenlen) && 1 <= cp) && c == 0) || (((((1 <= cond && 1 <= c) && 0 < scheme + 1) && cp + 1 < urilen) && c + 2 <= tokenlen) && 1 <= cp) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((1 <= cond && 0 < scheme + 1) && cp + 1 < urilen) && 1 <= cp) && c == 0 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((cp < urilen && 1 <= c) && 0 < scheme + 1) && 1 <= cp) && !(0 == cond)) || ((((cp < urilen && 0 < scheme + 1) && 1 <= cp) && !(0 == cond)) && c == 0) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((1 <= cond && 0 < scheme + 1) && cp + 1 < urilen) && 1 <= cp - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((1 <= c && 0 < scheme + 1) && cp + 1 < urilen) && 1 <= cp) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((1 <= cond && 0 < scheme + 1) && 1 <= cp) && cp + 1 <= urilen - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: ((0 < scheme + 1 && 1 <= cp) && !(0 == cond)) && cp + 1 <= urilen - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: ((0 < scheme + 1 && cp + 1 < urilen) && 1 <= cp) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((((1 <= c && 0 < scheme + 1) && cp + 1 < urilen) && c + 2 <= tokenlen) && 1 <= cp) && !(0 == cond)) || (((((0 < scheme + 1 && cp + 1 < urilen) && c + 2 <= tokenlen) && 1 <= cp) && !(0 == cond)) && c == 0) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((cp < urilen && 0 < scheme + 1) && 1 <= cp) && !(0 == cond) - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: ((((0 < scheme + 1 && cp + 1 < urilen) && 1 <= cp) && !(0 == cond)) && c == 0) || ((((1 <= c && 0 < scheme + 1) && cp + 1 < urilen) && 1 <= cp) && !(0 == cond)) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((1 <= cond && 0 < scheme + 1) && 1 <= cp) && cp + 1 <= urilen - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((0 < scheme + 1 && cp + 1 < urilen) && 1 <= cp) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((1 <= cond && 0 < scheme + 1) && 1 <= cp) && cp + 1 <= urilen - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((1 <= cond && 0 < scheme + 1) && cp + 1 < urilen) && 1 <= cp RESULT: Ultimate proved your program to be correct! [2021-10-29 05:21:40,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb616950-d00f-4c20-819b-c2f322bff76e/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...