./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem03_label08.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem03_label08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cfb40cb555a14fd95bceea51ff65e6513c4cf2d7cc92f4af25db414fd945afd5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:19:01,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:19:01,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:19:01,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:19:01,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:19:01,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:19:01,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:19:01,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:19:01,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:19:01,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:19:01,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:19:01,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:19:01,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:19:01,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:19:01,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:19:01,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:19:01,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:19:01,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:19:01,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:19:01,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:19:01,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:19:01,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:19:01,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:19:01,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:19:01,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:19:01,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:19:01,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:19:01,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:19:01,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:19:01,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:19:01,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:19:01,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:19:01,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:19:01,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:19:01,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:19:01,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:19:01,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:19:01,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:19:01,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:19:01,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:19:01,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:19:01,423 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 08:19:01,475 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:19:01,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:19:01,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:19:01,477 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:19:01,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:19:01,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:19:01,479 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:19:01,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:19:01,480 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:19:01,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:19:01,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:19:01,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:19:01,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:19:01,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:19:01,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:19:01,483 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:19:01,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:19:01,484 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:19:01,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:19:01,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:19:01,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:19:01,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:19:01,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:19:01,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:19:01,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:19:01,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:19:01,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:19:01,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:19:01,488 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:19:01,488 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:19:01,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:19:01,489 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:19:01,490 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cfb40cb555a14fd95bceea51ff65e6513c4cf2d7cc92f4af25db414fd945afd5 [2021-11-07 08:19:01,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:19:01,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:19:01,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:19:01,888 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:19:01,889 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:19:01,890 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/eca-rers2012/Problem03_label08.c [2021-11-07 08:19:01,976 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/data/9a2b1b83f/b0b7336833a9453b8e5e3ba983fdaf50/FLAG957f24d2b [2021-11-07 08:19:02,868 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:19:02,869 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/sv-benchmarks/c/eca-rers2012/Problem03_label08.c [2021-11-07 08:19:02,892 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/data/9a2b1b83f/b0b7336833a9453b8e5e3ba983fdaf50/FLAG957f24d2b [2021-11-07 08:19:02,942 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/data/9a2b1b83f/b0b7336833a9453b8e5e3ba983fdaf50 [2021-11-07 08:19:02,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:19:02,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:19:02,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:19:02,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:19:02,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:19:02,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:19:02" (1/1) ... [2021-11-07 08:19:02,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59243d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:02, skipping insertion in model container [2021-11-07 08:19:02,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:19:02" (1/1) ... [2021-11-07 08:19:02,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:19:03,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:19:03,933 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_f239fc21-b5f7-487b-9151-1b38ea34e7c3/sv-benchmarks/c/eca-rers2012/Problem03_label08.c[55410,55423] [2021-11-07 08:19:04,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:19:04,027 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:19:04,383 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_f239fc21-b5f7-487b-9151-1b38ea34e7c3/sv-benchmarks/c/eca-rers2012/Problem03_label08.c[55410,55423] [2021-11-07 08:19:04,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:19:04,431 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:19:04,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:04 WrapperNode [2021-11-07 08:19:04,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:19:04,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:19:04,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:19:04,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:19:04,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:04" (1/1) ... [2021-11-07 08:19:04,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:04" (1/1) ... [2021-11-07 08:19:04,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:19:04,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:19:04,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:19:04,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:19:04,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:04" (1/1) ... [2021-11-07 08:19:04,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:04" (1/1) ... [2021-11-07 08:19:04,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:04" (1/1) ... [2021-11-07 08:19:04,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:04" (1/1) ... [2021-11-07 08:19:04,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:04" (1/1) ... [2021-11-07 08:19:04,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:04" (1/1) ... [2021-11-07 08:19:04,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:04" (1/1) ... [2021-11-07 08:19:04,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:19:04,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:19:04,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:19:04,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:19:04,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:04" (1/1) ... [2021-11-07 08:19:04,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:19:04,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:19:04,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:19:04,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:19:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:19:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:19:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:19:05,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:19:07,552 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:19:07,553 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-07 08:19:07,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:19:07 BoogieIcfgContainer [2021-11-07 08:19:07,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:19:07,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:19:07,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:19:07,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:19:07,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:19:02" (1/3) ... [2021-11-07 08:19:07,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e93b892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:19:07, skipping insertion in model container [2021-11-07 08:19:07,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:19:04" (2/3) ... [2021-11-07 08:19:07,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e93b892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:19:07, skipping insertion in model container [2021-11-07 08:19:07,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:19:07" (3/3) ... [2021-11-07 08:19:07,571 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem03_label08.c [2021-11-07 08:19:07,582 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:19:07,583 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 08:19:07,670 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:19:07,681 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=PETRI_NET, 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 [2021-11-07 08:19:07,681 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 08:19:07,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 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) [2021-11-07 08:19:07,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-07 08:19:07,747 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:19:07,749 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, 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, 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, 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] [2021-11-07 08:19:07,750 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:19:07,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:07,758 INFO L85 PathProgramCache]: Analyzing trace with hash -576261461, now seen corresponding path program 1 times [2021-11-07 08:19:07,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:07,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066393744] [2021-11-07 08:19:07,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:07,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:19:08,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:19:08,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:19:08,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066393744] [2021-11-07 08:19:08,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066393744] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:19:08,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:19:08,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:19:08,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432336738] [2021-11-07 08:19:08,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:19:08,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:19:08,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:19:08,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:19:08,709 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 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 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 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) [2021-11-07 08:19:10,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:19:10,219 INFO L93 Difference]: Finished difference Result 816 states and 1453 transitions. [2021-11-07 08:19:10,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:19:10,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 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 157 [2021-11-07 08:19:10,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:19:10,242 INFO L225 Difference]: With dead ends: 816 [2021-11-07 08:19:10,242 INFO L226 Difference]: Without dead ends: 450 [2021-11-07 08:19:10,248 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:19:10,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2021-11-07 08:19:10,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 448. [2021-11-07 08:19:10,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 447 states have (on average 1.621923937360179) internal successors, (725), 447 states have internal predecessors, (725), 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) [2021-11-07 08:19:10,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 725 transitions. [2021-11-07 08:19:10,340 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 725 transitions. Word has length 157 [2021-11-07 08:19:10,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:19:10,353 INFO L470 AbstractCegarLoop]: Abstraction has 448 states and 725 transitions. [2021-11-07 08:19:10,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 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) [2021-11-07 08:19:10,354 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 725 transitions. [2021-11-07 08:19:10,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-07 08:19:10,360 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:19:10,361 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 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, 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, 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, 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] [2021-11-07 08:19:10,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:19:10,361 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:19:10,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:10,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1276126245, now seen corresponding path program 1 times [2021-11-07 08:19:10,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:10,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786619613] [2021-11-07 08:19:10,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:10,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:19:10,470 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:19:10,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:19:10,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786619613] [2021-11-07 08:19:10,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786619613] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:19:10,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:19:10,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:19:10,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692089320] [2021-11-07 08:19:10,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:19:10,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:19:10,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:19:10,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:19:10,479 INFO L87 Difference]: Start difference. First operand 448 states and 725 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 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) [2021-11-07 08:19:11,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:19:11,547 INFO L93 Difference]: Finished difference Result 1318 states and 2139 transitions. [2021-11-07 08:19:11,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:19:11,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 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 162 [2021-11-07 08:19:11,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:19:11,554 INFO L225 Difference]: With dead ends: 1318 [2021-11-07 08:19:11,555 INFO L226 Difference]: Without dead ends: 872 [2021-11-07 08:19:11,558 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:19:11,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2021-11-07 08:19:11,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 868. [2021-11-07 08:19:11,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 867 states have (on average 1.5271049596309112) internal successors, (1324), 867 states have internal predecessors, (1324), 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) [2021-11-07 08:19:11,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1324 transitions. [2021-11-07 08:19:11,614 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1324 transitions. Word has length 162 [2021-11-07 08:19:11,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:19:11,615 INFO L470 AbstractCegarLoop]: Abstraction has 868 states and 1324 transitions. [2021-11-07 08:19:11,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 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) [2021-11-07 08:19:11,616 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1324 transitions. [2021-11-07 08:19:11,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-07 08:19:11,637 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:19:11,638 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 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, 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, 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] [2021-11-07 08:19:11,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 08:19:11,639 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:19:11,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:11,640 INFO L85 PathProgramCache]: Analyzing trace with hash 933680492, now seen corresponding path program 1 times [2021-11-07 08:19:11,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:11,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057445513] [2021-11-07 08:19:11,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:11,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:19:11,767 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:19:11,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:19:11,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057445513] [2021-11-07 08:19:11,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057445513] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:19:11,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:19:11,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:19:11,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566509958] [2021-11-07 08:19:11,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:19:11,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:19:11,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:19:11,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:19:11,782 INFO L87 Difference]: Start difference. First operand 868 states and 1324 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2021-11-07 08:19:12,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:19:12,989 INFO L93 Difference]: Finished difference Result 2566 states and 3931 transitions. [2021-11-07 08:19:12,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:19:12,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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 165 [2021-11-07 08:19:12,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:19:13,003 INFO L225 Difference]: With dead ends: 2566 [2021-11-07 08:19:13,004 INFO L226 Difference]: Without dead ends: 1700 [2021-11-07 08:19:13,006 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:19:13,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2021-11-07 08:19:13,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1684. [2021-11-07 08:19:13,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 1683 states have (on average 1.4979203802733214) internal successors, (2521), 1683 states have internal predecessors, (2521), 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) [2021-11-07 08:19:13,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 2521 transitions. [2021-11-07 08:19:13,082 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 2521 transitions. Word has length 165 [2021-11-07 08:19:13,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:19:13,085 INFO L470 AbstractCegarLoop]: Abstraction has 1684 states and 2521 transitions. [2021-11-07 08:19:13,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 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) [2021-11-07 08:19:13,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 2521 transitions. [2021-11-07 08:19:13,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-07 08:19:13,093 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:19:13,093 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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] [2021-11-07 08:19:13,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 08:19:13,094 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:19:13,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:13,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1632193297, now seen corresponding path program 1 times [2021-11-07 08:19:13,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:13,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540985538] [2021-11-07 08:19:13,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:13,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:19:13,214 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:19:13,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:19:13,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540985538] [2021-11-07 08:19:13,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540985538] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:19:13,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:19:13,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:19:13,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84033921] [2021-11-07 08:19:13,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:19:13,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:19:13,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:19:13,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:19:13,225 INFO L87 Difference]: Start difference. First operand 1684 states and 2521 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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) [2021-11-07 08:19:14,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:19:14,388 INFO L93 Difference]: Finished difference Result 4188 states and 6247 transitions. [2021-11-07 08:19:14,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:19:14,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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 167 [2021-11-07 08:19:14,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:19:14,408 INFO L225 Difference]: With dead ends: 4188 [2021-11-07 08:19:14,409 INFO L226 Difference]: Without dead ends: 2506 [2021-11-07 08:19:14,412 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:19:14,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2021-11-07 08:19:14,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2505. [2021-11-07 08:19:14,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 2504 states have (on average 1.4700479233226837) internal successors, (3681), 2504 states have internal predecessors, (3681), 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) [2021-11-07 08:19:14,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3681 transitions. [2021-11-07 08:19:14,505 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3681 transitions. Word has length 167 [2021-11-07 08:19:14,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:19:14,505 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 3681 transitions. [2021-11-07 08:19:14,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 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) [2021-11-07 08:19:14,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3681 transitions. [2021-11-07 08:19:14,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-07 08:19:14,514 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:19:14,515 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 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, 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, 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, 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] [2021-11-07 08:19:14,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 08:19:14,516 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:19:14,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:14,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1802100129, now seen corresponding path program 1 times [2021-11-07 08:19:14,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:14,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557898927] [2021-11-07 08:19:14,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:14,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:19:14,813 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 08:19:14,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:19:14,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557898927] [2021-11-07 08:19:14,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557898927] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:19:14,815 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:19:14,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:19:14,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867382085] [2021-11-07 08:19:14,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:19:14,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:19:14,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:19:14,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:19:14,820 INFO L87 Difference]: Start difference. First operand 2505 states and 3681 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2021-11-07 08:19:15,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:19:15,956 INFO L93 Difference]: Finished difference Result 5007 states and 7359 transitions. [2021-11-07 08:19:15,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:19:15,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 172 [2021-11-07 08:19:15,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:19:15,977 INFO L225 Difference]: With dead ends: 5007 [2021-11-07 08:19:15,977 INFO L226 Difference]: Without dead ends: 2504 [2021-11-07 08:19:15,982 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 [2021-11-07 08:19:15,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2504 states. [2021-11-07 08:19:16,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2504 to 2502. [2021-11-07 08:19:16,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2502 states, 2501 states have (on average 1.3662534986005597) internal successors, (3417), 2501 states have internal predecessors, (3417), 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) [2021-11-07 08:19:16,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2502 states to 2502 states and 3417 transitions. [2021-11-07 08:19:16,097 INFO L78 Accepts]: Start accepts. Automaton has 2502 states and 3417 transitions. Word has length 172 [2021-11-07 08:19:16,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:19:16,100 INFO L470 AbstractCegarLoop]: Abstraction has 2502 states and 3417 transitions. [2021-11-07 08:19:16,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2021-11-07 08:19:16,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2502 states and 3417 transitions. [2021-11-07 08:19:16,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-07 08:19:16,108 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:19:16,109 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 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, 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, 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] [2021-11-07 08:19:16,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 08:19:16,109 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:19:16,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:16,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1335158266, now seen corresponding path program 1 times [2021-11-07 08:19:16,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:16,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350712244] [2021-11-07 08:19:16,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:16,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:19:16,219 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 08:19:16,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:19:16,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350712244] [2021-11-07 08:19:16,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350712244] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:19:16,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:19:16,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:19:16,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022165835] [2021-11-07 08:19:16,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:19:16,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:19:16,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:19:16,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:19:16,230 INFO L87 Difference]: Start difference. First operand 2502 states and 3417 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 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) [2021-11-07 08:19:17,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:19:17,407 INFO L93 Difference]: Finished difference Result 7439 states and 10165 transitions. [2021-11-07 08:19:17,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:19:17,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 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 174 [2021-11-07 08:19:17,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:19:17,441 INFO L225 Difference]: With dead ends: 7439 [2021-11-07 08:19:17,442 INFO L226 Difference]: Without dead ends: 4939 [2021-11-07 08:19:17,447 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:19:17,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4939 states. [2021-11-07 08:19:17,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4939 to 4126. [2021-11-07 08:19:17,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4126 states, 4125 states have (on average 1.257939393939394) internal successors, (5189), 4125 states have internal predecessors, (5189), 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) [2021-11-07 08:19:17,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4126 states to 4126 states and 5189 transitions. [2021-11-07 08:19:17,587 INFO L78 Accepts]: Start accepts. Automaton has 4126 states and 5189 transitions. Word has length 174 [2021-11-07 08:19:17,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:19:17,587 INFO L470 AbstractCegarLoop]: Abstraction has 4126 states and 5189 transitions. [2021-11-07 08:19:17,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 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) [2021-11-07 08:19:17,588 INFO L276 IsEmpty]: Start isEmpty. Operand 4126 states and 5189 transitions. [2021-11-07 08:19:17,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-07 08:19:17,596 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:19:17,597 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 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, 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, 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, 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] [2021-11-07 08:19:17,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 08:19:17,598 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:19:17,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:17,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1967830700, now seen corresponding path program 1 times [2021-11-07 08:19:17,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:17,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553619652] [2021-11-07 08:19:17,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:17,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:19:17,738 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 26 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-07 08:19:17,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:19:17,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553619652] [2021-11-07 08:19:17,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553619652] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:19:17,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876328862] [2021-11-07 08:19:17,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:17,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:19:17,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:19:17,742 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:19:17,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 08:19:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:19:17,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:19:17,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:19:18,699 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-07 08:19:18,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876328862] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:19:18,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 08:19:18,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-11-07 08:19:18,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725346735] [2021-11-07 08:19:18,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:19:18,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:19:18,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:19:18,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:19:18,703 INFO L87 Difference]: Start difference. First operand 4126 states and 5189 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2021-11-07 08:19:19,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:19:19,966 INFO L93 Difference]: Finished difference Result 12325 states and 15502 transitions. [2021-11-07 08:19:19,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:19:19,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 184 [2021-11-07 08:19:19,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:19:20,026 INFO L225 Difference]: With dead ends: 12325 [2021-11-07 08:19:20,026 INFO L226 Difference]: Without dead ends: 8201 [2021-11-07 08:19:20,033 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:19:20,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8201 states. [2021-11-07 08:19:20,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8201 to 8200. [2021-11-07 08:19:20,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8200 states, 8199 states have (on average 1.2261251372118551) internal successors, (10053), 8199 states have internal predecessors, (10053), 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) [2021-11-07 08:19:20,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8200 states to 8200 states and 10053 transitions. [2021-11-07 08:19:20,321 INFO L78 Accepts]: Start accepts. Automaton has 8200 states and 10053 transitions. Word has length 184 [2021-11-07 08:19:20,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:19:20,322 INFO L470 AbstractCegarLoop]: Abstraction has 8200 states and 10053 transitions. [2021-11-07 08:19:20,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2021-11-07 08:19:20,322 INFO L276 IsEmpty]: Start isEmpty. Operand 8200 states and 10053 transitions. [2021-11-07 08:19:20,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-07 08:19:20,338 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:19:20,338 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1] [2021-11-07 08:19:20,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 08:19:20,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:19:20,566 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:19:20,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:20,567 INFO L85 PathProgramCache]: Analyzing trace with hash -794235702, now seen corresponding path program 1 times [2021-11-07 08:19:20,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:20,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728165317] [2021-11-07 08:19:20,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:20,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:19:20,708 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 08:19:20,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:19:20,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728165317] [2021-11-07 08:19:20,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728165317] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:19:20,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:19:20,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:19:20,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266632959] [2021-11-07 08:19:20,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:19:20,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:19:20,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:19:20,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:19:20,712 INFO L87 Difference]: Start difference. First operand 8200 states and 10053 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2021-11-07 08:19:21,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:19:21,977 INFO L93 Difference]: Finished difference Result 20881 states and 25555 transitions. [2021-11-07 08:19:21,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:19:21,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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 206 [2021-11-07 08:19:21,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:19:22,044 INFO L225 Difference]: With dead ends: 20881 [2021-11-07 08:19:22,044 INFO L226 Difference]: Without dead ends: 12683 [2021-11-07 08:19:22,058 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 [2021-11-07 08:19:22,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12683 states. [2021-11-07 08:19:22,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12683 to 11448. [2021-11-07 08:19:22,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11448 states, 11447 states have (on average 1.1996156198130514) internal successors, (13732), 11447 states have internal predecessors, (13732), 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) [2021-11-07 08:19:22,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11448 states to 11448 states and 13732 transitions. [2021-11-07 08:19:22,438 INFO L78 Accepts]: Start accepts. Automaton has 11448 states and 13732 transitions. Word has length 206 [2021-11-07 08:19:22,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:19:22,438 INFO L470 AbstractCegarLoop]: Abstraction has 11448 states and 13732 transitions. [2021-11-07 08:19:22,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2021-11-07 08:19:22,440 INFO L276 IsEmpty]: Start isEmpty. Operand 11448 states and 13732 transitions. [2021-11-07 08:19:22,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-07 08:19:22,461 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:19:22,461 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1] [2021-11-07 08:19:22,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 08:19:22,462 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:19:22,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:22,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1532481883, now seen corresponding path program 1 times [2021-11-07 08:19:22,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:22,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442185353] [2021-11-07 08:19:22,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:22,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:19:22,595 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:19:22,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:19:22,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442185353] [2021-11-07 08:19:22,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442185353] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:19:22,596 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:19:22,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:19:22,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714892386] [2021-11-07 08:19:22,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:19:22,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:19:22,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:19:22,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:19:22,600 INFO L87 Difference]: Start difference. First operand 11448 states and 13732 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 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) [2021-11-07 08:19:24,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:19:24,301 INFO L93 Difference]: Finished difference Result 23728 states and 28488 transitions. [2021-11-07 08:19:24,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:19:24,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 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 222 [2021-11-07 08:19:24,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:19:24,338 INFO L225 Difference]: With dead ends: 23728 [2021-11-07 08:19:24,339 INFO L226 Difference]: Without dead ends: 12282 [2021-11-07 08:19:24,354 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:19:24,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12282 states. [2021-11-07 08:19:24,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12282 to 11245. [2021-11-07 08:19:24,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11245 states, 11244 states have (on average 1.1959267164710068) internal successors, (13447), 11244 states have internal predecessors, (13447), 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) [2021-11-07 08:19:24,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11245 states to 11245 states and 13447 transitions. [2021-11-07 08:19:24,702 INFO L78 Accepts]: Start accepts. Automaton has 11245 states and 13447 transitions. Word has length 222 [2021-11-07 08:19:24,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:19:24,702 INFO L470 AbstractCegarLoop]: Abstraction has 11245 states and 13447 transitions. [2021-11-07 08:19:24,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 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) [2021-11-07 08:19:24,703 INFO L276 IsEmpty]: Start isEmpty. Operand 11245 states and 13447 transitions. [2021-11-07 08:19:24,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-07 08:19:24,728 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:19:24,729 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1] [2021-11-07 08:19:24,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 08:19:24,729 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:19:24,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:24,730 INFO L85 PathProgramCache]: Analyzing trace with hash 68415504, now seen corresponding path program 1 times [2021-11-07 08:19:24,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:24,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92269859] [2021-11-07 08:19:24,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:24,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:19:24,879 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-07 08:19:24,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:19:24,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92269859] [2021-11-07 08:19:24,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92269859] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:19:24,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513043200] [2021-11-07 08:19:24,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:24,888 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:19:24,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:19:24,890 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:19:24,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 08:19:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:19:25,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 08:19:25,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:19:25,868 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 08:19:25,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513043200] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:19:25,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 08:19:25,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-11-07 08:19:25,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964339746] [2021-11-07 08:19:25,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:19:25,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:19:25,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:19:25,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:19:25,871 INFO L87 Difference]: Start difference. First operand 11245 states and 13447 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2021-11-07 08:19:27,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:19:27,161 INFO L93 Difference]: Finished difference Result 30018 states and 35867 transitions. [2021-11-07 08:19:27,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:19:27,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 229 [2021-11-07 08:19:27,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:19:27,213 INFO L225 Difference]: With dead ends: 30018 [2021-11-07 08:19:27,213 INFO L226 Difference]: Without dead ends: 18775 [2021-11-07 08:19:27,228 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:19:27,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18775 states. [2021-11-07 08:19:27,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18775 to 17345. [2021-11-07 08:19:27,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17345 states, 17344 states have (on average 1.1772947416974169) internal successors, (20419), 17344 states have internal predecessors, (20419), 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) [2021-11-07 08:19:27,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17345 states to 17345 states and 20419 transitions. [2021-11-07 08:19:27,704 INFO L78 Accepts]: Start accepts. Automaton has 17345 states and 20419 transitions. Word has length 229 [2021-11-07 08:19:27,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:19:27,705 INFO L470 AbstractCegarLoop]: Abstraction has 17345 states and 20419 transitions. [2021-11-07 08:19:27,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2021-11-07 08:19:27,706 INFO L276 IsEmpty]: Start isEmpty. Operand 17345 states and 20419 transitions. [2021-11-07 08:19:27,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-11-07 08:19:27,741 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:19:27,742 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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] [2021-11-07 08:19:27,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 08:19:27,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-07 08:19:27,963 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:19:27,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:27,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1712858039, now seen corresponding path program 1 times [2021-11-07 08:19:27,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:27,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359350148] [2021-11-07 08:19:27,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:27,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:28,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:19:28,114 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-07 08:19:28,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:19:28,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359350148] [2021-11-07 08:19:28,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359350148] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:19:28,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600209885] [2021-11-07 08:19:28,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:28,116 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:19:28,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:19:28,117 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:19:28,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 08:19:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:19:28,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:19:28,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:19:29,419 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-07 08:19:29,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600209885] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:19:29,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 08:19:29,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-11-07 08:19:29,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576768035] [2021-11-07 08:19:29,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:19:29,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:19:29,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:19:29,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:19:29,423 INFO L87 Difference]: Start difference. First operand 17345 states and 20419 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) [2021-11-07 08:19:30,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:19:30,525 INFO L93 Difference]: Finished difference Result 35306 states and 41479 transitions. [2021-11-07 08:19:30,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:19:30,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 249 [2021-11-07 08:19:30,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:19:30,565 INFO L225 Difference]: With dead ends: 35306 [2021-11-07 08:19:30,565 INFO L226 Difference]: Without dead ends: 17963 [2021-11-07 08:19:30,586 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:19:30,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17963 states. [2021-11-07 08:19:30,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17963 to 17345. [2021-11-07 08:19:31,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17345 states, 17344 states have (on average 1.149331180811808) internal successors, (19934), 17344 states have internal predecessors, (19934), 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) [2021-11-07 08:19:31,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17345 states to 17345 states and 19934 transitions. [2021-11-07 08:19:31,041 INFO L78 Accepts]: Start accepts. Automaton has 17345 states and 19934 transitions. Word has length 249 [2021-11-07 08:19:31,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:19:31,042 INFO L470 AbstractCegarLoop]: Abstraction has 17345 states and 19934 transitions. [2021-11-07 08:19:31,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) [2021-11-07 08:19:31,043 INFO L276 IsEmpty]: Start isEmpty. Operand 17345 states and 19934 transitions. [2021-11-07 08:19:31,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-11-07 08:19:31,070 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:19:31,071 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2021-11-07 08:19:31,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 08:19:31,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-07 08:19:31,287 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:19:31,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:31,287 INFO L85 PathProgramCache]: Analyzing trace with hash -455035159, now seen corresponding path program 1 times [2021-11-07 08:19:31,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:31,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375868777] [2021-11-07 08:19:31,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:31,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:19:31,607 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 99 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-07 08:19:31,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:19:31,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375868777] [2021-11-07 08:19:31,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375868777] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:19:31,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304323047] [2021-11-07 08:19:31,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:31,609 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:19:31,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:19:31,614 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:19:31,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 08:19:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:19:32,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:19:32,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:19:32,931 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-07 08:19:32,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304323047] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:19:32,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 08:19:32,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-11-07 08:19:32,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660940134] [2021-11-07 08:19:32,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:19:32,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:19:32,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:19:32,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:19:32,935 INFO L87 Difference]: Start difference. First operand 17345 states and 19934 transitions. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2021-11-07 08:19:34,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:19:34,241 INFO L93 Difference]: Finished difference Result 34703 states and 39895 transitions. [2021-11-07 08:19:34,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:19:34,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 257 [2021-11-07 08:19:34,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:19:34,272 INFO L225 Difference]: With dead ends: 34703 [2021-11-07 08:19:34,272 INFO L226 Difference]: Without dead ends: 17360 [2021-11-07 08:19:34,290 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:19:34,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17360 states. [2021-11-07 08:19:34,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17360 to 17345. [2021-11-07 08:19:34,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17345 states, 17344 states have (on average 1.1448916051660516) internal successors, (19857), 17344 states have internal predecessors, (19857), 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) [2021-11-07 08:19:34,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17345 states to 17345 states and 19857 transitions. [2021-11-07 08:19:34,697 INFO L78 Accepts]: Start accepts. Automaton has 17345 states and 19857 transitions. Word has length 257 [2021-11-07 08:19:34,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:19:34,698 INFO L470 AbstractCegarLoop]: Abstraction has 17345 states and 19857 transitions. [2021-11-07 08:19:34,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2021-11-07 08:19:34,699 INFO L276 IsEmpty]: Start isEmpty. Operand 17345 states and 19857 transitions. [2021-11-07 08:19:34,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2021-11-07 08:19:34,756 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:19:34,757 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 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] [2021-11-07 08:19:34,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 08:19:34,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:19:34,970 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:19:34,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:34,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1219473828, now seen corresponding path program 1 times [2021-11-07 08:19:34,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:34,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542722822] [2021-11-07 08:19:34,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:34,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:19:35,336 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2021-11-07 08:19:35,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:19:35,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542722822] [2021-11-07 08:19:35,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542722822] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:19:35,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:19:35,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:19:35,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739621252] [2021-11-07 08:19:35,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:19:35,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:19:35,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:19:35,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:19:35,340 INFO L87 Difference]: Start difference. First operand 17345 states and 19857 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2021-11-07 08:19:36,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:19:36,457 INFO L93 Difference]: Finished difference Result 33245 states and 38014 transitions. [2021-11-07 08:19:36,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:19:36,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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 420 [2021-11-07 08:19:36,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:19:36,479 INFO L225 Difference]: With dead ends: 33245 [2021-11-07 08:19:36,479 INFO L226 Difference]: Without dead ends: 15902 [2021-11-07 08:19:36,491 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 [2021-11-07 08:19:36,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15902 states. [2021-11-07 08:19:36,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15902 to 15292. [2021-11-07 08:19:36,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15292 states, 15291 states have (on average 1.1143156104898306) internal successors, (17039), 15291 states have internal predecessors, (17039), 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) [2021-11-07 08:19:36,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15292 states to 15292 states and 17039 transitions. [2021-11-07 08:19:36,766 INFO L78 Accepts]: Start accepts. Automaton has 15292 states and 17039 transitions. Word has length 420 [2021-11-07 08:19:36,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:19:36,767 INFO L470 AbstractCegarLoop]: Abstraction has 15292 states and 17039 transitions. [2021-11-07 08:19:36,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2021-11-07 08:19:36,768 INFO L276 IsEmpty]: Start isEmpty. Operand 15292 states and 17039 transitions. [2021-11-07 08:19:36,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2021-11-07 08:19:36,861 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:19:36,862 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:19:36,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 08:19:36,863 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:19:36,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:19:36,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1322868857, now seen corresponding path program 1 times [2021-11-07 08:19:36,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:19:36,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43699186] [2021-11-07 08:19:36,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:19:36,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:19:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:19:37,148 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-11-07 08:19:37,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:19:37,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43699186] [2021-11-07 08:19:37,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43699186] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:19:37,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:19:37,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:19:37,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970543494] [2021-11-07 08:19:37,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:19:37,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:19:37,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:19:37,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:19:37,152 INFO L87 Difference]: Start difference. First operand 15292 states and 17039 transitions. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 2 states have internal predecessors, (303), 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) [2021-11-07 08:19:37,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:19:37,764 INFO L93 Difference]: Finished difference Result 29745 states and 33126 transitions. [2021-11-07 08:19:37,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:19:37,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 2 states have internal predecessors, (303), 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 476 [2021-11-07 08:19:37,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:19:37,765 INFO L225 Difference]: With dead ends: 29745 [2021-11-07 08:19:37,765 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 08:19:37,777 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:19:37,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 08:19:37,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 08:19:37,778 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) [2021-11-07 08:19:37,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 08:19:37,778 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 476 [2021-11-07 08:19:37,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:19:37,779 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:19:37,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 2 states have internal predecessors, (303), 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) [2021-11-07 08:19:37,779 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 08:19:37,779 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 08:19:37,783 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 08:19:37,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 08:19:37,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 08:19:37,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:19:37,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:19:37,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:19:38,852 INFO L857 garLoopResultBuilder]: For program point L1621(line 1621) no Hoare annotation was computed. [2021-11-07 08:19:38,852 INFO L857 garLoopResultBuilder]: For program point L1555(line 1555) no Hoare annotation was computed. [2021-11-07 08:19:38,852 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,852 INFO L857 garLoopResultBuilder]: For program point L1489(line 1489) no Hoare annotation was computed. [2021-11-07 08:19:38,852 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,853 INFO L857 garLoopResultBuilder]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,853 INFO L857 garLoopResultBuilder]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,853 INFO L857 garLoopResultBuilder]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,853 INFO L857 garLoopResultBuilder]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,853 INFO L857 garLoopResultBuilder]: For program point L1623-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,853 INFO L857 garLoopResultBuilder]: For program point L1557-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,853 INFO L857 garLoopResultBuilder]: For program point L1491-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,853 INFO L857 garLoopResultBuilder]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,854 INFO L857 garLoopResultBuilder]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,854 INFO L857 garLoopResultBuilder]: For program point L1624(line 1624) no Hoare annotation was computed. [2021-11-07 08:19:38,854 INFO L857 garLoopResultBuilder]: For program point L1558(line 1558) no Hoare annotation was computed. [2021-11-07 08:19:38,854 INFO L857 garLoopResultBuilder]: For program point L1492(line 1492) no Hoare annotation was computed. [2021-11-07 08:19:38,854 INFO L857 garLoopResultBuilder]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,854 INFO L857 garLoopResultBuilder]: For program point L1294(lines 1294 1313) no Hoare annotation was computed. [2021-11-07 08:19:38,854 INFO L857 garLoopResultBuilder]: For program point L1294-2(lines 1294 1313) no Hoare annotation was computed. [2021-11-07 08:19:38,854 INFO L857 garLoopResultBuilder]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,854 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,855 INFO L857 garLoopResultBuilder]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,855 INFO L857 garLoopResultBuilder]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,855 INFO L857 garLoopResultBuilder]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,855 INFO L857 garLoopResultBuilder]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,855 INFO L857 garLoopResultBuilder]: For program point L1626-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,855 INFO L857 garLoopResultBuilder]: For program point L1560-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,855 INFO L857 garLoopResultBuilder]: For program point L1494-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,855 INFO L857 garLoopResultBuilder]: For program point L1627(line 1627) no Hoare annotation was computed. [2021-11-07 08:19:38,855 INFO L857 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2021-11-07 08:19:38,856 INFO L857 garLoopResultBuilder]: For program point L1495(line 1495) no Hoare annotation was computed. [2021-11-07 08:19:38,856 INFO L857 garLoopResultBuilder]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,856 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,856 INFO L857 garLoopResultBuilder]: For program point L1629-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,856 INFO L857 garLoopResultBuilder]: For program point L1563-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,856 INFO L857 garLoopResultBuilder]: For program point L1497-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,856 INFO L857 garLoopResultBuilder]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,856 INFO L857 garLoopResultBuilder]: For program point L1630(line 1630) no Hoare annotation was computed. [2021-11-07 08:19:38,856 INFO L857 garLoopResultBuilder]: For program point L1564(line 1564) no Hoare annotation was computed. [2021-11-07 08:19:38,857 INFO L857 garLoopResultBuilder]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,857 INFO L857 garLoopResultBuilder]: For program point L1498(line 1498) no Hoare annotation was computed. [2021-11-07 08:19:38,857 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,857 INFO L857 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2021-11-07 08:19:38,857 INFO L857 garLoopResultBuilder]: For program point L508-2(lines 508 521) no Hoare annotation was computed. [2021-11-07 08:19:38,859 INFO L857 garLoopResultBuilder]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,860 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,860 INFO L857 garLoopResultBuilder]: For program point L1632-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,860 INFO L857 garLoopResultBuilder]: For program point L1566-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,860 INFO L857 garLoopResultBuilder]: For program point L1500-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,860 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,860 INFO L857 garLoopResultBuilder]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,861 INFO L857 garLoopResultBuilder]: For program point L1633(line 1633) no Hoare annotation was computed. [2021-11-07 08:19:38,861 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,861 INFO L857 garLoopResultBuilder]: For program point L1567(line 1567) no Hoare annotation was computed. [2021-11-07 08:19:38,862 INFO L857 garLoopResultBuilder]: For program point L1501(line 1501) no Hoare annotation was computed. [2021-11-07 08:19:38,862 INFO L857 garLoopResultBuilder]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,862 INFO L857 garLoopResultBuilder]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,862 INFO L857 garLoopResultBuilder]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,862 INFO L857 garLoopResultBuilder]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,863 INFO L857 garLoopResultBuilder]: For program point L1370(lines 1370 1389) no Hoare annotation was computed. [2021-11-07 08:19:38,863 INFO L857 garLoopResultBuilder]: For program point L1370-2(lines 1370 1389) no Hoare annotation was computed. [2021-11-07 08:19:38,863 INFO L857 garLoopResultBuilder]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,863 INFO L857 garLoopResultBuilder]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,863 INFO L857 garLoopResultBuilder]: For program point L1635-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,864 INFO L857 garLoopResultBuilder]: For program point L1569-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,864 INFO L857 garLoopResultBuilder]: For program point L1503-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,864 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,864 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,864 INFO L857 garLoopResultBuilder]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,864 INFO L857 garLoopResultBuilder]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,865 INFO L857 garLoopResultBuilder]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,865 INFO L857 garLoopResultBuilder]: For program point L1636(line 1636) no Hoare annotation was computed. [2021-11-07 08:19:38,865 INFO L857 garLoopResultBuilder]: For program point L1570(line 1570) no Hoare annotation was computed. [2021-11-07 08:19:38,865 INFO L857 garLoopResultBuilder]: For program point L1504(line 1504) no Hoare annotation was computed. [2021-11-07 08:19:38,865 INFO L857 garLoopResultBuilder]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,866 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,866 INFO L857 garLoopResultBuilder]: For program point L1638-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,866 INFO L857 garLoopResultBuilder]: For program point L1572-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,866 INFO L857 garLoopResultBuilder]: For program point L1506-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,866 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,867 INFO L857 garLoopResultBuilder]: For program point L1639(line 1639) no Hoare annotation was computed. [2021-11-07 08:19:38,867 INFO L857 garLoopResultBuilder]: For program point L1573(line 1573) no Hoare annotation was computed. [2021-11-07 08:19:38,867 INFO L857 garLoopResultBuilder]: For program point L1507(line 1507) no Hoare annotation was computed. [2021-11-07 08:19:38,867 INFO L857 garLoopResultBuilder]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,867 INFO L857 garLoopResultBuilder]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,867 INFO L857 garLoopResultBuilder]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,868 INFO L857 garLoopResultBuilder]: For program point L1641-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,868 INFO L857 garLoopResultBuilder]: For program point L1575-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,868 INFO L857 garLoopResultBuilder]: For program point L1509-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,868 INFO L857 garLoopResultBuilder]: For program point L1642(line 1642) no Hoare annotation was computed. [2021-11-07 08:19:38,868 INFO L857 garLoopResultBuilder]: For program point L1576(line 1576) no Hoare annotation was computed. [2021-11-07 08:19:38,869 INFO L857 garLoopResultBuilder]: For program point L1510(line 1510) no Hoare annotation was computed. [2021-11-07 08:19:38,869 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,869 INFO L857 garLoopResultBuilder]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,869 INFO L857 garLoopResultBuilder]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,869 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 405) no Hoare annotation was computed. [2021-11-07 08:19:38,870 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,870 INFO L857 garLoopResultBuilder]: For program point L388-2(lines 388 405) no Hoare annotation was computed. [2021-11-07 08:19:38,870 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 08:19:38,870 INFO L857 garLoopResultBuilder]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,870 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,870 INFO L857 garLoopResultBuilder]: For program point L1049(lines 1049 1069) no Hoare annotation was computed. [2021-11-07 08:19:38,871 INFO L857 garLoopResultBuilder]: For program point L1049-2(lines 1049 1069) no Hoare annotation was computed. [2021-11-07 08:19:38,871 INFO L857 garLoopResultBuilder]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,871 INFO L857 garLoopResultBuilder]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,871 INFO L857 garLoopResultBuilder]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,871 INFO L857 garLoopResultBuilder]: For program point L1644-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,872 INFO L857 garLoopResultBuilder]: For program point L1578-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,872 INFO L857 garLoopResultBuilder]: For program point L1512-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,872 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,872 INFO L857 garLoopResultBuilder]: For program point L720(lines 720 741) no Hoare annotation was computed. [2021-11-07 08:19:38,872 INFO L857 garLoopResultBuilder]: For program point L720-2(lines 720 741) no Hoare annotation was computed. [2021-11-07 08:19:38,873 INFO L857 garLoopResultBuilder]: For program point L1645(line 1645) no Hoare annotation was computed. [2021-11-07 08:19:38,873 INFO L857 garLoopResultBuilder]: For program point L1579(line 1579) no Hoare annotation was computed. [2021-11-07 08:19:38,873 INFO L857 garLoopResultBuilder]: For program point L1513(line 1513) no Hoare annotation was computed. [2021-11-07 08:19:38,873 INFO L857 garLoopResultBuilder]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,874 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,874 INFO L857 garLoopResultBuilder]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,874 INFO L857 garLoopResultBuilder]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,874 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,874 INFO L857 garLoopResultBuilder]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,875 INFO L857 garLoopResultBuilder]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,875 INFO L857 garLoopResultBuilder]: For program point L1647-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,875 INFO L857 garLoopResultBuilder]: For program point L1581-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,875 INFO L857 garLoopResultBuilder]: For program point L1515-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,875 INFO L857 garLoopResultBuilder]: For program point L1648(line 1648) no Hoare annotation was computed. [2021-11-07 08:19:38,876 INFO L857 garLoopResultBuilder]: For program point L1582(line 1582) no Hoare annotation was computed. [2021-11-07 08:19:38,876 INFO L857 garLoopResultBuilder]: For program point L1516(line 1516) no Hoare annotation was computed. [2021-11-07 08:19:38,876 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,876 INFO L857 garLoopResultBuilder]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,876 INFO L857 garLoopResultBuilder]: For program point L1650-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,877 INFO L857 garLoopResultBuilder]: For program point L1584-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,877 INFO L857 garLoopResultBuilder]: For program point L1518-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,877 INFO L857 garLoopResultBuilder]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,877 INFO L857 garLoopResultBuilder]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,877 INFO L857 garLoopResultBuilder]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,878 INFO L857 garLoopResultBuilder]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,878 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 08:19:38,878 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1516) no Hoare annotation was computed. [2021-11-07 08:19:38,878 INFO L857 garLoopResultBuilder]: For program point L1651(line 1651) no Hoare annotation was computed. [2021-11-07 08:19:38,878 INFO L857 garLoopResultBuilder]: For program point L1585(line 1585) no Hoare annotation was computed. [2021-11-07 08:19:38,879 INFO L857 garLoopResultBuilder]: For program point L1519(line 1519) no Hoare annotation was computed. [2021-11-07 08:19:38,879 INFO L857 garLoopResultBuilder]: For program point L66(lines 66 81) no Hoare annotation was computed. [2021-11-07 08:19:38,879 INFO L857 garLoopResultBuilder]: For program point L66-2(lines 66 81) no Hoare annotation was computed. [2021-11-07 08:19:38,879 INFO L857 garLoopResultBuilder]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,879 INFO L857 garLoopResultBuilder]: For program point L1653-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,880 INFO L857 garLoopResultBuilder]: For program point L1587-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,880 INFO L857 garLoopResultBuilder]: For program point L1521-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,880 INFO L857 garLoopResultBuilder]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,880 INFO L857 garLoopResultBuilder]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,880 INFO L857 garLoopResultBuilder]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,881 INFO L857 garLoopResultBuilder]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,881 INFO L857 garLoopResultBuilder]: For program point L1654(line 1654) no Hoare annotation was computed. [2021-11-07 08:19:38,881 INFO L857 garLoopResultBuilder]: For program point L1588(line 1588) no Hoare annotation was computed. [2021-11-07 08:19:38,881 INFO L857 garLoopResultBuilder]: For program point L1522(line 1522) no Hoare annotation was computed. [2021-11-07 08:19:38,881 INFO L857 garLoopResultBuilder]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,882 INFO L857 garLoopResultBuilder]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,882 INFO L857 garLoopResultBuilder]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,882 INFO L857 garLoopResultBuilder]: For program point L928(lines 928 945) no Hoare annotation was computed. [2021-11-07 08:19:38,882 INFO L857 garLoopResultBuilder]: For program point L928-2(lines 928 945) no Hoare annotation was computed. [2021-11-07 08:19:38,882 INFO L857 garLoopResultBuilder]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,883 INFO L857 garLoopResultBuilder]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,883 INFO L857 garLoopResultBuilder]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,883 INFO L857 garLoopResultBuilder]: For program point L202(lines 202 221) no Hoare annotation was computed. [2021-11-07 08:19:38,883 INFO L857 garLoopResultBuilder]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,883 INFO L857 garLoopResultBuilder]: For program point L202-2(lines 202 221) no Hoare annotation was computed. [2021-11-07 08:19:38,884 INFO L857 garLoopResultBuilder]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,884 INFO L857 garLoopResultBuilder]: For program point L1656-1(lines 1656 1658) no Hoare annotation was computed. [2021-11-07 08:19:38,884 INFO L857 garLoopResultBuilder]: For program point L1590-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,884 INFO L857 garLoopResultBuilder]: For program point L1524-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,884 INFO L857 garLoopResultBuilder]: For program point L1392(lines 1392 1410) no Hoare annotation was computed. [2021-11-07 08:19:38,885 INFO L857 garLoopResultBuilder]: For program point L1392-2(lines 1392 1410) no Hoare annotation was computed. [2021-11-07 08:19:38,885 INFO L857 garLoopResultBuilder]: For program point L1260(lines 1260 1282) no Hoare annotation was computed. [2021-11-07 08:19:38,885 INFO L857 garLoopResultBuilder]: For program point L1260-2(lines 1260 1282) no Hoare annotation was computed. [2021-11-07 08:19:38,885 INFO L857 garLoopResultBuilder]: For program point L1657(line 1657) no Hoare annotation was computed. [2021-11-07 08:19:38,885 INFO L857 garLoopResultBuilder]: For program point L1591(line 1591) no Hoare annotation was computed. [2021-11-07 08:19:38,885 INFO L857 garLoopResultBuilder]: For program point L1525(line 1525) no Hoare annotation was computed. [2021-11-07 08:19:38,886 INFO L857 garLoopResultBuilder]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,886 INFO L857 garLoopResultBuilder]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,886 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,888 INFO L853 garLoopResultBuilder]: At program point L1659(lines 64 1660) the Hoare annotation is: (let ((.cse1 (= ~a12~0 1)) (.cse8 (= ~a26~0 1)) (.cse9 (<= ~a3~0 1)) (.cse3 (= ~a6~0 1)) (.cse5 (<= ~a11~0 0)) (.cse6 (<= ~a27~0 0)) (.cse0 (= ~a5~0 1)) (.cse2 (= ~a11~0 1)) (.cse10 (<= ~a12~0 0)) (.cse4 (= ~a27~0 1)) (.cse7 (<= ~a6~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse6 .cse7) (and .cse8 .cse0 .cse9 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse10 .cse4 .cse7) (and .cse0 .cse1 .cse5 .cse4 .cse7) (and .cse0 .cse3 .cse5 .cse10 .cse4) (and .cse0 (<= 1 ~a3~0) .cse5 .cse10 .cse6 .cse7) (and .cse0 .cse1 .cse3 .cse5 .cse4) (and .cse8 .cse0 .cse1 .cse2 .cse4 .cse7) (and .cse0 .cse1 .cse3 .cse5 .cse6) (and .cse0 .cse3 .cse5 .cse10 .cse6) (and .cse0 .cse2 .cse3 .cse10 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse6) (and .cse0 .cse2 .cse3 .cse10 .cse4) (and .cse8 .cse0 .cse9 .cse3 .cse5 .cse4) (and .cse0 .cse2 .cse10 .cse6 .cse7) (and .cse0 .cse2 .cse10 .cse4 .cse7))) [2021-11-07 08:19:38,888 INFO L857 garLoopResultBuilder]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,889 INFO L857 garLoopResultBuilder]: For program point L1593-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,889 INFO L857 garLoopResultBuilder]: For program point L1527-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,889 INFO L857 garLoopResultBuilder]: For program point L1594(line 1594) no Hoare annotation was computed. [2021-11-07 08:19:38,889 INFO L857 garLoopResultBuilder]: For program point L1528(line 1528) no Hoare annotation was computed. [2021-11-07 08:19:38,890 INFO L857 garLoopResultBuilder]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,890 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,890 INFO L857 garLoopResultBuilder]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,890 INFO L860 garLoopResultBuilder]: At program point L1662(lines 1662 1679) the Hoare annotation is: true [2021-11-07 08:19:38,890 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,891 INFO L857 garLoopResultBuilder]: For program point L1596-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,891 INFO L857 garLoopResultBuilder]: For program point L1530-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,891 INFO L857 garLoopResultBuilder]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,891 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,891 INFO L857 garLoopResultBuilder]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,891 INFO L857 garLoopResultBuilder]: For program point L1597(line 1597) no Hoare annotation was computed. [2021-11-07 08:19:38,892 INFO L857 garLoopResultBuilder]: For program point L1531(line 1531) no Hoare annotation was computed. [2021-11-07 08:19:38,892 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,892 INFO L857 garLoopResultBuilder]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,892 INFO L857 garLoopResultBuilder]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,892 INFO L857 garLoopResultBuilder]: For program point L1599-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,893 INFO L857 garLoopResultBuilder]: For program point L1533-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,893 INFO L857 garLoopResultBuilder]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,893 INFO L857 garLoopResultBuilder]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,893 INFO L857 garLoopResultBuilder]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,893 INFO L857 garLoopResultBuilder]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,894 INFO L857 garLoopResultBuilder]: For program point L1600(line 1600) no Hoare annotation was computed. [2021-11-07 08:19:38,894 INFO L857 garLoopResultBuilder]: For program point L1534(line 1534) no Hoare annotation was computed. [2021-11-07 08:19:38,894 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,896 INFO L857 garLoopResultBuilder]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,897 INFO L857 garLoopResultBuilder]: For program point L478(lines 478 488) no Hoare annotation was computed. [2021-11-07 08:19:38,897 INFO L857 garLoopResultBuilder]: For program point L478-2(lines 478 488) no Hoare annotation was computed. [2021-11-07 08:19:38,897 INFO L857 garLoopResultBuilder]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,898 INFO L853 garLoopResultBuilder]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse1 (= ~a12~0 1)) (.cse8 (= ~a26~0 1)) (.cse9 (<= ~a3~0 1)) (.cse3 (= ~a6~0 1)) (.cse5 (<= ~a11~0 0)) (.cse6 (<= ~a27~0 0)) (.cse0 (= ~a5~0 1)) (.cse2 (= ~a11~0 1)) (.cse10 (<= ~a12~0 0)) (.cse4 (= ~a27~0 1)) (.cse7 (<= ~a6~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse6 .cse7) (and .cse8 .cse0 .cse9 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse10 .cse4 .cse7) (and .cse0 .cse1 .cse5 .cse4 .cse7) (and .cse0 .cse3 .cse5 .cse10 .cse4) (and .cse0 (<= 1 ~a3~0) .cse5 .cse10 .cse6 .cse7) (and .cse0 .cse1 .cse3 .cse5 .cse4) (and .cse8 .cse0 .cse1 .cse2 .cse4 .cse7) (and .cse0 .cse1 .cse3 .cse5 .cse6) (and .cse0 .cse3 .cse5 .cse10 .cse6) (and .cse0 .cse2 .cse3 .cse10 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse6) (and .cse0 .cse2 .cse3 .cse10 .cse4) (and .cse8 .cse0 .cse9 .cse3 .cse5 .cse4) (and .cse0 .cse2 .cse10 .cse6 .cse7) (and .cse0 .cse2 .cse10 .cse4 .cse7))) [2021-11-07 08:19:38,898 INFO L857 garLoopResultBuilder]: For program point L1602-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,899 INFO L857 garLoopResultBuilder]: For program point L1536-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,899 INFO L857 garLoopResultBuilder]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,899 INFO L857 garLoopResultBuilder]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,899 INFO L857 garLoopResultBuilder]: For program point L1603(line 1603) no Hoare annotation was computed. [2021-11-07 08:19:38,899 INFO L857 garLoopResultBuilder]: For program point L1537(line 1537) no Hoare annotation was computed. [2021-11-07 08:19:38,900 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,900 INFO L857 garLoopResultBuilder]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,900 INFO L857 garLoopResultBuilder]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,900 INFO L857 garLoopResultBuilder]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,900 INFO L857 garLoopResultBuilder]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,901 INFO L857 garLoopResultBuilder]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,901 INFO L857 garLoopResultBuilder]: For program point L1605-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,901 INFO L857 garLoopResultBuilder]: For program point L1539-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,901 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 08:19:38,901 INFO L857 garLoopResultBuilder]: For program point L879(lines 879 897) no Hoare annotation was computed. [2021-11-07 08:19:38,902 INFO L857 garLoopResultBuilder]: For program point L879-2(lines 879 897) no Hoare annotation was computed. [2021-11-07 08:19:38,902 INFO L857 garLoopResultBuilder]: For program point L1606(line 1606) no Hoare annotation was computed. [2021-11-07 08:19:38,902 INFO L857 garLoopResultBuilder]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,902 INFO L857 garLoopResultBuilder]: For program point L1540(line 1540) no Hoare annotation was computed. [2021-11-07 08:19:38,902 INFO L857 garLoopResultBuilder]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,903 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,903 INFO L857 garLoopResultBuilder]: For program point L1673(line 1673) no Hoare annotation was computed. [2021-11-07 08:19:38,903 INFO L857 garLoopResultBuilder]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,903 INFO L857 garLoopResultBuilder]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,903 INFO L857 garLoopResultBuilder]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,904 INFO L857 garLoopResultBuilder]: For program point L1608-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,904 INFO L857 garLoopResultBuilder]: For program point L1542-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,905 INFO L857 garLoopResultBuilder]: For program point L1476(lines 1476 1478) no Hoare annotation was computed. [2021-11-07 08:19:38,905 INFO L857 garLoopResultBuilder]: For program point L1476-2(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,906 INFO L857 garLoopResultBuilder]: For program point L1609(line 1609) no Hoare annotation was computed. [2021-11-07 08:19:38,906 INFO L857 garLoopResultBuilder]: For program point L1543(line 1543) no Hoare annotation was computed. [2021-11-07 08:19:38,906 INFO L857 garLoopResultBuilder]: For program point L1477(line 1477) no Hoare annotation was computed. [2021-11-07 08:19:38,906 INFO L857 garLoopResultBuilder]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,907 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,907 INFO L857 garLoopResultBuilder]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,908 INFO L857 garLoopResultBuilder]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,908 INFO L857 garLoopResultBuilder]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,908 INFO L857 garLoopResultBuilder]: For program point L1611-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,913 INFO L857 garLoopResultBuilder]: For program point L1545-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,914 INFO L857 garLoopResultBuilder]: For program point L1479-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,914 INFO L857 garLoopResultBuilder]: For program point L1413(lines 1413 1431) no Hoare annotation was computed. [2021-11-07 08:19:38,914 INFO L857 garLoopResultBuilder]: For program point L1413-2(lines 1413 1431) no Hoare annotation was computed. [2021-11-07 08:19:38,914 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,915 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,915 INFO L857 garLoopResultBuilder]: For program point L1612(line 1612) no Hoare annotation was computed. [2021-11-07 08:19:38,915 INFO L857 garLoopResultBuilder]: For program point L1546(line 1546) no Hoare annotation was computed. [2021-11-07 08:19:38,915 INFO L857 garLoopResultBuilder]: For program point L1480(line 1480) no Hoare annotation was computed. [2021-11-07 08:19:38,915 INFO L857 garLoopResultBuilder]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,916 INFO L857 garLoopResultBuilder]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,916 INFO L857 garLoopResultBuilder]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,916 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,916 INFO L857 garLoopResultBuilder]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,916 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 08:19:38,917 INFO L857 garLoopResultBuilder]: For program point L1614-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,917 INFO L857 garLoopResultBuilder]: For program point L1548-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,917 INFO L857 garLoopResultBuilder]: For program point L1482-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,917 INFO L857 garLoopResultBuilder]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,917 INFO L857 garLoopResultBuilder]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,918 INFO L857 garLoopResultBuilder]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,918 INFO L857 garLoopResultBuilder]: For program point L1615(line 1615) no Hoare annotation was computed. [2021-11-07 08:19:38,918 INFO L857 garLoopResultBuilder]: For program point L1549(line 1549) no Hoare annotation was computed. [2021-11-07 08:19:38,918 INFO L857 garLoopResultBuilder]: For program point L1483(line 1483) no Hoare annotation was computed. [2021-11-07 08:19:38,918 INFO L857 garLoopResultBuilder]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,918 INFO L857 garLoopResultBuilder]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,919 INFO L857 garLoopResultBuilder]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,919 INFO L857 garLoopResultBuilder]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,919 INFO L857 garLoopResultBuilder]: For program point L1617-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,919 INFO L857 garLoopResultBuilder]: For program point L1551-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,919 INFO L857 garLoopResultBuilder]: For program point L1485-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,920 INFO L857 garLoopResultBuilder]: For program point L1221(lines 1221 1234) no Hoare annotation was computed. [2021-11-07 08:19:38,920 INFO L857 garLoopResultBuilder]: For program point L1221-2(lines 1221 1234) no Hoare annotation was computed. [2021-11-07 08:19:38,920 INFO L857 garLoopResultBuilder]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,920 INFO L857 garLoopResultBuilder]: For program point L1618(line 1618) no Hoare annotation was computed. [2021-11-07 08:19:38,920 INFO L857 garLoopResultBuilder]: For program point L1552(line 1552) no Hoare annotation was computed. [2021-11-07 08:19:38,921 INFO L857 garLoopResultBuilder]: For program point L1486(line 1486) no Hoare annotation was computed. [2021-11-07 08:19:38,921 INFO L857 garLoopResultBuilder]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,921 INFO L857 garLoopResultBuilder]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,921 INFO L857 garLoopResultBuilder]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,921 INFO L857 garLoopResultBuilder]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,922 INFO L857 garLoopResultBuilder]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2021-11-07 08:19:38,922 INFO L857 garLoopResultBuilder]: For program point L695(lines 695 709) no Hoare annotation was computed. [2021-11-07 08:19:38,922 INFO L857 garLoopResultBuilder]: For program point L695-2(lines 695 709) no Hoare annotation was computed. [2021-11-07 08:19:38,922 INFO L857 garLoopResultBuilder]: For program point L1620-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,922 INFO L857 garLoopResultBuilder]: For program point L1554-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,922 INFO L857 garLoopResultBuilder]: For program point L1488-1(lines 64 1660) no Hoare annotation was computed. [2021-11-07 08:19:38,927 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:19:38,929 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 08:19:39,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:19:39 BoogieIcfgContainer [2021-11-07 08:19:39,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 08:19:39,006 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:19:39,007 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:19:39,007 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:19:39,008 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:19:07" (3/4) ... [2021-11-07 08:19:39,011 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 08:19:39,065 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-07 08:19:39,070 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-07 08:19:39,074 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 08:19:39,079 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 08:19:39,352 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/witness.graphml [2021-11-07 08:19:39,352 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:19:39,354 INFO L168 Benchmark]: Toolchain (without parser) took 36400.03 ms. Allocated memory was 109.1 MB in the beginning and 654.3 MB in the end (delta: 545.3 MB). Free memory was 75.9 MB in the beginning and 443.2 MB in the end (delta: -367.3 MB). Peak memory consumption was 431.5 MB. Max. memory is 16.1 GB. [2021-11-07 08:19:39,354 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 109.1 MB. Free memory is still 61.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:19:39,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1475.70 ms. Allocated memory was 109.1 MB in the beginning and 142.6 MB in the end (delta: 33.6 MB). Free memory was 75.6 MB in the beginning and 94.8 MB in the end (delta: -19.2 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. [2021-11-07 08:19:39,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 253.87 ms. Allocated memory is still 142.6 MB. Free memory was 94.8 MB in the beginning and 81.0 MB in the end (delta: 13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 08:19:39,356 INFO L168 Benchmark]: Boogie Preprocessor took 167.05 ms. Allocated memory is still 142.6 MB. Free memory was 81.0 MB in the beginning and 69.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 08:19:39,356 INFO L168 Benchmark]: RCFGBuilder took 2698.76 ms. Allocated memory was 142.6 MB in the beginning and 224.4 MB in the end (delta: 81.8 MB). Free memory was 69.7 MB in the beginning and 144.2 MB in the end (delta: -74.5 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB. [2021-11-07 08:19:39,357 INFO L168 Benchmark]: TraceAbstraction took 31445.75 ms. Allocated memory was 224.4 MB in the beginning and 654.3 MB in the end (delta: 429.9 MB). Free memory was 144.2 MB in the beginning and 203.1 MB in the end (delta: -58.9 MB). Peak memory consumption was 372.0 MB. Max. memory is 16.1 GB. [2021-11-07 08:19:39,357 INFO L168 Benchmark]: Witness Printer took 346.06 ms. Allocated memory is still 654.3 MB. Free memory was 203.1 MB in the beginning and 443.2 MB in the end (delta: -240.0 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2021-11-07 08:19:39,360 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 109.1 MB. Free memory is still 61.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1475.70 ms. Allocated memory was 109.1 MB in the beginning and 142.6 MB in the end (delta: 33.6 MB). Free memory was 75.6 MB in the beginning and 94.8 MB in the end (delta: -19.2 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 253.87 ms. Allocated memory is still 142.6 MB. Free memory was 94.8 MB in the beginning and 81.0 MB in the end (delta: 13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 167.05 ms. Allocated memory is still 142.6 MB. Free memory was 81.0 MB in the beginning and 69.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2698.76 ms. Allocated memory was 142.6 MB in the beginning and 224.4 MB in the end (delta: 81.8 MB). Free memory was 69.7 MB in the beginning and 144.2 MB in the end (delta: -74.5 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 31445.75 ms. Allocated memory was 224.4 MB in the beginning and 654.3 MB in the end (delta: 429.9 MB). Free memory was 144.2 MB in the beginning and 203.1 MB in the end (delta: -58.9 MB). Peak memory consumption was 372.0 MB. Max. memory is 16.1 GB. * Witness Printer took 346.06 ms. Allocated memory is still 654.3 MB. Free memory was 203.1 MB in the beginning and 443.2 MB in the end (delta: -240.0 MB). Peak memory consumption was 12.7 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: 1516]: 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, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 31.2s, OverallIterations: 14, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 17.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2799 SDtfs, 2726 SDslu, 326 SDs, 0 SdLazy, 8598 SolverSat, 1836 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 951 GetRequests, 928 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17345occurred in iteration=10, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 5784 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 131 NumberOfFragments, 603 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3060 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 510 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 4159 NumberOfCodeBlocks, 4159 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 4141 ConstructedInterpolants, 0 QuantifiedInterpolants, 8333 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1952 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 18 InterpolantComputations, 14 PerfectInterpolantSequences, 2165/2201 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((((((((((((((((((((a5 == 1 && a12 == 1) && a11 == 1) && a6 == 1) && a27 == 1) || ((((a5 == 1 && a12 == 1) && a11 <= 0) && a27 <= 0) && a6 <= 0)) || ((((a5 == 1 && a12 == 1) && a11 == 1) && a27 <= 0) && a6 <= 0)) || (((((a26 == 1 && a5 == 1) && a3 <= 1) && a11 == 1) && a6 == 1) && a27 == 1)) || ((((a5 == 1 && a11 <= 0) && a12 <= 0) && a27 == 1) && a6 <= 0)) || ((((a5 == 1 && a12 == 1) && a11 <= 0) && a27 == 1) && a6 <= 0)) || ((((a5 == 1 && a6 == 1) && a11 <= 0) && a12 <= 0) && a27 == 1)) || (((((a5 == 1 && 1 <= a3) && a11 <= 0) && a12 <= 0) && a27 <= 0) && a6 <= 0)) || ((((a5 == 1 && a12 == 1) && a6 == 1) && a11 <= 0) && a27 == 1)) || (((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 1) && a27 == 1) && a6 <= 0)) || ((((a5 == 1 && a12 == 1) && a6 == 1) && a11 <= 0) && a27 <= 0)) || ((((a5 == 1 && a6 == 1) && a11 <= 0) && a12 <= 0) && a27 <= 0)) || ((((a5 == 1 && a11 == 1) && a6 == 1) && a12 <= 0) && a27 <= 0)) || ((((a5 == 1 && a12 == 1) && a11 == 1) && a6 == 1) && a27 <= 0)) || ((((a5 == 1 && a11 == 1) && a6 == 1) && a12 <= 0) && a27 == 1)) || (((((a26 == 1 && a5 == 1) && a3 <= 1) && a6 == 1) && a11 <= 0) && a27 == 1)) || ((((a5 == 1 && a11 == 1) && a12 <= 0) && a27 <= 0) && a6 <= 0)) || ((((a5 == 1 && a11 == 1) && a12 <= 0) && a27 == 1) && a6 <= 0) - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: ((((((((((((((((((((a5 == 1 && a12 == 1) && a11 == 1) && a6 == 1) && a27 == 1) || ((((a5 == 1 && a12 == 1) && a11 <= 0) && a27 <= 0) && a6 <= 0)) || ((((a5 == 1 && a12 == 1) && a11 == 1) && a27 <= 0) && a6 <= 0)) || (((((a26 == 1 && a5 == 1) && a3 <= 1) && a11 == 1) && a6 == 1) && a27 == 1)) || ((((a5 == 1 && a11 <= 0) && a12 <= 0) && a27 == 1) && a6 <= 0)) || ((((a5 == 1 && a12 == 1) && a11 <= 0) && a27 == 1) && a6 <= 0)) || ((((a5 == 1 && a6 == 1) && a11 <= 0) && a12 <= 0) && a27 == 1)) || (((((a5 == 1 && 1 <= a3) && a11 <= 0) && a12 <= 0) && a27 <= 0) && a6 <= 0)) || ((((a5 == 1 && a12 == 1) && a6 == 1) && a11 <= 0) && a27 == 1)) || (((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 1) && a27 == 1) && a6 <= 0)) || ((((a5 == 1 && a12 == 1) && a6 == 1) && a11 <= 0) && a27 <= 0)) || ((((a5 == 1 && a6 == 1) && a11 <= 0) && a12 <= 0) && a27 <= 0)) || ((((a5 == 1 && a11 == 1) && a6 == 1) && a12 <= 0) && a27 <= 0)) || ((((a5 == 1 && a12 == 1) && a11 == 1) && a6 == 1) && a27 <= 0)) || ((((a5 == 1 && a11 == 1) && a6 == 1) && a12 <= 0) && a27 == 1)) || (((((a26 == 1 && a5 == 1) && a3 <= 1) && a6 == 1) && a11 <= 0) && a27 == 1)) || ((((a5 == 1 && a11 == 1) && a12 <= 0) && a27 <= 0) && a6 <= 0)) || ((((a5 == 1 && a11 == 1) && a12 <= 0) && a27 == 1) && a6 <= 0) RESULT: Ultimate proved your program to be correct! [2021-11-07 08:19:39,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f239fc21-b5f7-487b-9151-1b38ea34e7c3/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE