./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label40.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a --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 f0697d9089c8f644e106fd291328f66f211f5f9eb49bfcc0a5bab680b0bbbbc1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 13:46:36,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:46:36,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:46:36,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:46:36,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:46:36,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:46:36,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:46:36,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:46:36,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:46:36,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:46:36,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:46:36,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:46:36,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:46:36,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:46:36,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:46:36,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:46:36,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:46:36,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:46:36,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:46:36,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:46:36,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:46:36,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:46:36,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:46:36,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:46:36,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:46:36,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:46:36,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:46:36,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:46:36,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:46:36,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:46:36,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:46:36,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:46:36,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:46:36,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:46:36,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:46:36,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:46:36,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:46:36,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:46:36,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:46:36,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:46:36,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:46:36,413 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 13:46:36,460 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:46:36,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:46:36,461 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:46:36,462 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:46:36,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:46:36,463 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:46:36,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:46:36,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:46:36,465 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:46:36,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:46:36,467 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:46:36,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:46:36,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:46:36,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:46:36,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:46:36,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:46:36,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:46:36,469 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:46:36,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:46:36,470 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:46:36,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:46:36,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:46:36,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:46:36,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:46:36,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:46:36,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:46:36,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:46:36,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:46:36,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:46:36,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:46:36,474 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:46:36,475 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:46:36,475 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:46:36,476 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_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0697d9089c8f644e106fd291328f66f211f5f9eb49bfcc0a5bab680b0bbbbc1 [2022-11-21 13:46:36,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:46:36,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:46:36,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:46:36,843 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:46:36,844 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:46:36,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/eca-rers2012/Problem02_label40.c [2022-11-21 13:46:40,024 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:46:40,297 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:46:40,298 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/sv-benchmarks/c/eca-rers2012/Problem02_label40.c [2022-11-21 13:46:40,310 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/data/481b7302b/d7d3da6ae6084cdab3d580ae83bbe7d0/FLAG1cbe31897 [2022-11-21 13:46:40,336 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/data/481b7302b/d7d3da6ae6084cdab3d580ae83bbe7d0 [2022-11-21 13:46:40,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:46:40,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:46:40,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:46:40,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:46:40,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:46:40,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:46:40" (1/1) ... [2022-11-21 13:46:40,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c78e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:40, skipping insertion in model container [2022-11-21 13:46:40,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:46:40" (1/1) ... [2022-11-21 13:46:40,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:46:40,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:46:40,717 WARN L237 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_c1e9007e-9103-45e3-972d-412a81c969c6/sv-benchmarks/c/eca-rers2012/Problem02_label40.c[15538,15551] [2022-11-21 13:46:40,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:46:40,821 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:46:40,914 WARN L237 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_c1e9007e-9103-45e3-972d-412a81c969c6/sv-benchmarks/c/eca-rers2012/Problem02_label40.c[15538,15551] [2022-11-21 13:46:40,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:46:40,949 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:46:40,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:40 WrapperNode [2022-11-21 13:46:40,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:46:40,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:46:40,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:46:40,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:46:40,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:40" (1/1) ... [2022-11-21 13:46:40,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:40" (1/1) ... [2022-11-21 13:46:41,033 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2022-11-21 13:46:41,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:46:41,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:46:41,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:46:41,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:46:41,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:40" (1/1) ... [2022-11-21 13:46:41,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:40" (1/1) ... [2022-11-21 13:46:41,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:40" (1/1) ... [2022-11-21 13:46:41,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:40" (1/1) ... [2022-11-21 13:46:41,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:40" (1/1) ... [2022-11-21 13:46:41,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:40" (1/1) ... [2022-11-21 13:46:41,117 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:40" (1/1) ... [2022-11-21 13:46:41,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:40" (1/1) ... [2022-11-21 13:46:41,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:46:41,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:46:41,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:46:41,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:46:41,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:40" (1/1) ... [2022-11-21 13:46:41,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:46:41,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:46:41,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:46:41,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:46:41,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:46:41,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:46:41,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:46:41,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:46:41,320 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:46:41,322 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:46:42,592 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:46:42,602 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:46:42,602 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 13:46:42,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:46:42 BoogieIcfgContainer [2022-11-21 13:46:42,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:46:42,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:46:42,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:46:42,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:46:42,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:46:40" (1/3) ... [2022-11-21 13:46:42,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42346800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:46:42, skipping insertion in model container [2022-11-21 13:46:42,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:46:40" (2/3) ... [2022-11-21 13:46:42,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42346800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:46:42, skipping insertion in model container [2022-11-21 13:46:42,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:46:42" (3/3) ... [2022-11-21 13:46:42,614 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label40.c [2022-11-21 13:46:42,634 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:46:42,634 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 13:46:42,695 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:46:42,704 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@38a7a577, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:46:42,704 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 13:46:42,711 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 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) [2022-11-21 13:46:42,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-21 13:46:42,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:46:42,725 INFO L195 NwaCegarLoop]: 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] [2022-11-21 13:46:42,726 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:46:42,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:46:42,732 INFO L85 PathProgramCache]: Analyzing trace with hash 427661899, now seen corresponding path program 1 times [2022-11-21 13:46:42,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:46:42,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632693861] [2022-11-21 13:46:42,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:46:42,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:46:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:46:43,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:46:43,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:46:43,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632693861] [2022-11-21 13:46:43,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632693861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:46:43,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:46:43,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:46:43,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780253416] [2022-11-21 13:46:43,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:46:43,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:46:43,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:46:43,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:46:43,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:46:43,479 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 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 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 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) [2022-11-21 13:46:44,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:46:44,483 INFO L93 Difference]: Finished difference Result 617 states and 1059 transitions. [2022-11-21 13:46:44,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:46:44,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 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 89 [2022-11-21 13:46:44,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:46:44,498 INFO L225 Difference]: With dead ends: 617 [2022-11-21 13:46:44,498 INFO L226 Difference]: Without dead ends: 316 [2022-11-21 13:46:44,502 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:46:44,506 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 112 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-21 13:46:44,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 102 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-21 13:46:44,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-11-21 13:46:44,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 309. [2022-11-21 13:46:44,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 308 states have (on average 1.4610389610389611) internal successors, (450), 308 states have internal predecessors, (450), 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) [2022-11-21 13:46:44,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 450 transitions. [2022-11-21 13:46:44,562 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 450 transitions. Word has length 89 [2022-11-21 13:46:44,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:46:44,563 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 450 transitions. [2022-11-21 13:46:44,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 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) [2022-11-21 13:46:44,563 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 450 transitions. [2022-11-21 13:46:44,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-21 13:46:44,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:46:44,567 INFO L195 NwaCegarLoop]: 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] [2022-11-21 13:46:44,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:46:44,567 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:46:44,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:46:44,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1621682358, now seen corresponding path program 1 times [2022-11-21 13:46:44,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:46:44,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187712495] [2022-11-21 13:46:44,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:46:44,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:46:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:46:44,752 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:46:44,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:46:44,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187712495] [2022-11-21 13:46:44,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187712495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:46:44,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:46:44,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:46:44,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272471275] [2022-11-21 13:46:44,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:46:44,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:46:44,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:46:44,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:46:44,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:46:44,757 INFO L87 Difference]: Start difference. First operand 309 states and 450 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:46:45,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:46:45,364 INFO L93 Difference]: Finished difference Result 900 states and 1316 transitions. [2022-11-21 13:46:45,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:46:45,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-11-21 13:46:45,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:46:45,370 INFO L225 Difference]: With dead ends: 900 [2022-11-21 13:46:45,370 INFO L226 Difference]: Without dead ends: 593 [2022-11-21 13:46:45,371 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:46:45,373 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 141 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 13:46:45,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 117 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 13:46:45,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-11-21 13:46:45,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 591. [2022-11-21 13:46:45,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 590 states have (on average 1.2932203389830508) internal successors, (763), 590 states have internal predecessors, (763), 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) [2022-11-21 13:46:45,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 763 transitions. [2022-11-21 13:46:45,401 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 763 transitions. Word has length 97 [2022-11-21 13:46:45,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:46:45,401 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 763 transitions. [2022-11-21 13:46:45,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:46:45,402 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 763 transitions. [2022-11-21 13:46:45,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-21 13:46:45,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:46:45,407 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-21 13:46:45,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 13:46:45,407 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:46:45,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:46:45,408 INFO L85 PathProgramCache]: Analyzing trace with hash 248126698, now seen corresponding path program 1 times [2022-11-21 13:46:45,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:46:45,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225878601] [2022-11-21 13:46:45,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:46:45,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:46:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:46:45,671 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:46:45,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:46:45,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225878601] [2022-11-21 13:46:45,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225878601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:46:45,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:46:45,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:46:45,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006149427] [2022-11-21 13:46:45,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:46:45,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:46:45,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:46:45,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:46:45,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:46:45,675 INFO L87 Difference]: Start difference. First operand 591 states and 763 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2022-11-21 13:46:46,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:46:46,296 INFO L93 Difference]: Finished difference Result 1750 states and 2263 transitions. [2022-11-21 13:46:46,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:46:46,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 98 [2022-11-21 13:46:46,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:46:46,302 INFO L225 Difference]: With dead ends: 1750 [2022-11-21 13:46:46,302 INFO L226 Difference]: Without dead ends: 1161 [2022-11-21 13:46:46,308 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:46:46,310 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 81 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 13:46:46,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 297 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 13:46:46,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2022-11-21 13:46:46,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1014. [2022-11-21 13:46:46,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 1013 states have (on average 1.2645607107601184) internal successors, (1281), 1013 states have internal predecessors, (1281), 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) [2022-11-21 13:46:46,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1281 transitions. [2022-11-21 13:46:46,345 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1281 transitions. Word has length 98 [2022-11-21 13:46:46,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:46:46,346 INFO L495 AbstractCegarLoop]: Abstraction has 1014 states and 1281 transitions. [2022-11-21 13:46:46,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2022-11-21 13:46:46,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1281 transitions. [2022-11-21 13:46:46,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-21 13:46:46,350 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:46:46,350 INFO L195 NwaCegarLoop]: 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] [2022-11-21 13:46:46,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 13:46:46,351 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:46:46,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:46:46,351 INFO L85 PathProgramCache]: Analyzing trace with hash 450798671, now seen corresponding path program 1 times [2022-11-21 13:46:46,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:46:46,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137792554] [2022-11-21 13:46:46,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:46:46,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:46:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:46:46,452 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:46:46,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:46:46,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137792554] [2022-11-21 13:46:46,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137792554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:46:46,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:46:46,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:46:46,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943089908] [2022-11-21 13:46:46,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:46:46,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:46:46,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:46:46,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:46:46,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:46:46,456 INFO L87 Difference]: Start difference. First operand 1014 states and 1281 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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) [2022-11-21 13:46:47,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:46:47,193 INFO L93 Difference]: Finished difference Result 2870 states and 3645 transitions. [2022-11-21 13:46:47,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:46:47,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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 99 [2022-11-21 13:46:47,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:46:47,201 INFO L225 Difference]: With dead ends: 2870 [2022-11-21 13:46:47,202 INFO L226 Difference]: Without dead ends: 1858 [2022-11-21 13:46:47,203 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:46:47,205 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 190 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-21 13:46:47,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 79 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-21 13:46:47,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2022-11-21 13:46:47,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1858. [2022-11-21 13:46:47,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1858 states, 1857 states have (on average 1.2250942380183092) internal successors, (2275), 1857 states have internal predecessors, (2275), 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) [2022-11-21 13:46:47,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2275 transitions. [2022-11-21 13:46:47,258 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2275 transitions. Word has length 99 [2022-11-21 13:46:47,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:46:47,259 INFO L495 AbstractCegarLoop]: Abstraction has 1858 states and 2275 transitions. [2022-11-21 13:46:47,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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) [2022-11-21 13:46:47,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2275 transitions. [2022-11-21 13:46:47,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-21 13:46:47,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:46:47,264 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-21 13:46:47,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 13:46:47,265 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:46:47,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:46:47,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2038443423, now seen corresponding path program 1 times [2022-11-21 13:46:47,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:46:47,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254060651] [2022-11-21 13:46:47,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:46:47,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:46:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:46:47,440 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-21 13:46:47,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:46:47,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254060651] [2022-11-21 13:46:47,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254060651] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:46:47,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105995987] [2022-11-21 13:46:47,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:46:47,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:46:47,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:46:47,446 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:46:47,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 13:46:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:46:47,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:46:47,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:46:47,851 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-21 13:46:47,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:46:47,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105995987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:46:47,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 13:46:47,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2022-11-21 13:46:47,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434915255] [2022-11-21 13:46:47,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:46:47,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:46:47,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:46:47,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:46:47,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:46:47,856 INFO L87 Difference]: Start difference. First operand 1858 states and 2275 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 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) [2022-11-21 13:46:48,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:46:48,569 INFO L93 Difference]: Finished difference Result 4708 states and 5786 transitions. [2022-11-21 13:46:48,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:46:48,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 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 102 [2022-11-21 13:46:48,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:46:48,578 INFO L225 Difference]: With dead ends: 4708 [2022-11-21 13:46:48,578 INFO L226 Difference]: Without dead ends: 2712 [2022-11-21 13:46:48,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:46:48,582 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 114 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 13:46:48,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 108 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 13:46:48,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2712 states. [2022-11-21 13:46:48,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2712 to 2711. [2022-11-21 13:46:48,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2711 states, 2710 states have (on average 1.2022140221402213) internal successors, (3258), 2710 states have internal predecessors, (3258), 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) [2022-11-21 13:46:48,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 3258 transitions. [2022-11-21 13:46:48,644 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 3258 transitions. Word has length 102 [2022-11-21 13:46:48,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:46:48,645 INFO L495 AbstractCegarLoop]: Abstraction has 2711 states and 3258 transitions. [2022-11-21 13:46:48,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 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) [2022-11-21 13:46:48,646 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 3258 transitions. [2022-11-21 13:46:48,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-21 13:46:48,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:46:48,650 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-21 13:46:48,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 13:46:48,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:46:48,856 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:46:48,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:46:48,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1000789268, now seen corresponding path program 1 times [2022-11-21 13:46:48,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:46:48,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471310143] [2022-11-21 13:46:48,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:46:48,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:46:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:46:49,020 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-21 13:46:49,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:46:49,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471310143] [2022-11-21 13:46:49,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471310143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:46:49,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:46:49,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:46:49,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197115006] [2022-11-21 13:46:49,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:46:49,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:46:49,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:46:49,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:46:49,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:46:49,024 INFO L87 Difference]: Start difference. First operand 2711 states and 3258 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2022-11-21 13:46:49,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:46:49,605 INFO L93 Difference]: Finished difference Result 6124 states and 7449 transitions. [2022-11-21 13:46:49,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:46:49,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 106 [2022-11-21 13:46:49,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:46:49,618 INFO L225 Difference]: With dead ends: 6124 [2022-11-21 13:46:49,619 INFO L226 Difference]: Without dead ends: 3415 [2022-11-21 13:46:49,622 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:46:49,631 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 144 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 13:46:49,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 254 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 13:46:49,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3415 states. [2022-11-21 13:46:49,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3415 to 3271. [2022-11-21 13:46:49,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3271 states, 3270 states have (on average 1.182262996941896) internal successors, (3866), 3270 states have internal predecessors, (3866), 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) [2022-11-21 13:46:49,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3271 states to 3271 states and 3866 transitions. [2022-11-21 13:46:49,741 INFO L78 Accepts]: Start accepts. Automaton has 3271 states and 3866 transitions. Word has length 106 [2022-11-21 13:46:49,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:46:49,742 INFO L495 AbstractCegarLoop]: Abstraction has 3271 states and 3866 transitions. [2022-11-21 13:46:49,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2022-11-21 13:46:49,742 INFO L276 IsEmpty]: Start isEmpty. Operand 3271 states and 3866 transitions. [2022-11-21 13:46:49,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-21 13:46:49,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:46:49,750 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-11-21 13:46:49,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 13:46:49,750 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:46:49,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:46:49,751 INFO L85 PathProgramCache]: Analyzing trace with hash 443706062, now seen corresponding path program 1 times [2022-11-21 13:46:49,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:46:49,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094174938] [2022-11-21 13:46:49,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:46:49,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:46:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:46:49,873 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:46:49,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:46:49,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094174938] [2022-11-21 13:46:49,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094174938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:46:49,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:46:49,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:46:49,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105111307] [2022-11-21 13:46:49,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:46:49,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:46:49,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:46:49,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:46:49,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:46:49,876 INFO L87 Difference]: Start difference. First operand 3271 states and 3866 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2022-11-21 13:46:50,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:46:50,371 INFO L93 Difference]: Finished difference Result 7101 states and 8361 transitions. [2022-11-21 13:46:50,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:46:50,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 118 [2022-11-21 13:46:50,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:46:50,385 INFO L225 Difference]: With dead ends: 7101 [2022-11-21 13:46:50,385 INFO L226 Difference]: Without dead ends: 3832 [2022-11-21 13:46:50,389 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:46:50,390 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 159 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 13:46:50,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 62 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 13:46:50,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3832 states. [2022-11-21 13:46:50,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3832 to 3831. [2022-11-21 13:46:50,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3831 states, 3830 states have (on average 1.1527415143603132) internal successors, (4415), 3830 states have internal predecessors, (4415), 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) [2022-11-21 13:46:50,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3831 states and 4415 transitions. [2022-11-21 13:46:50,463 INFO L78 Accepts]: Start accepts. Automaton has 3831 states and 4415 transitions. Word has length 118 [2022-11-21 13:46:50,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:46:50,464 INFO L495 AbstractCegarLoop]: Abstraction has 3831 states and 4415 transitions. [2022-11-21 13:46:50,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2022-11-21 13:46:50,464 INFO L276 IsEmpty]: Start isEmpty. Operand 3831 states and 4415 transitions. [2022-11-21 13:46:50,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-21 13:46:50,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:46:50,469 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-11-21 13:46:50,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 13:46:50,469 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:46:50,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:46:50,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1584256613, now seen corresponding path program 1 times [2022-11-21 13:46:50,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:46:50,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185646199] [2022-11-21 13:46:50,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:46:50,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:46:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:46:50,716 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-21 13:46:50,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:46:50,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185646199] [2022-11-21 13:46:50,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185646199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:46:50,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:46:50,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:46:50,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142484247] [2022-11-21 13:46:50,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:46:50,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:46:50,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:46:50,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:46:50,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:46:50,720 INFO L87 Difference]: Start difference. First operand 3831 states and 4415 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2022-11-21 13:46:51,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:46:51,279 INFO L93 Difference]: Finished difference Result 7661 states and 8830 transitions. [2022-11-21 13:46:51,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:46:51,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 127 [2022-11-21 13:46:51,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:46:51,293 INFO L225 Difference]: With dead ends: 7661 [2022-11-21 13:46:51,293 INFO L226 Difference]: Without dead ends: 3832 [2022-11-21 13:46:51,297 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:46:51,299 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 144 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 13:46:51,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 265 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 13:46:51,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3832 states. [2022-11-21 13:46:51,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3832 to 3831. [2022-11-21 13:46:51,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3831 states, 3830 states have (on average 1.1383812010443863) internal successors, (4360), 3830 states have internal predecessors, (4360), 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) [2022-11-21 13:46:51,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3831 states and 4360 transitions. [2022-11-21 13:46:51,382 INFO L78 Accepts]: Start accepts. Automaton has 3831 states and 4360 transitions. Word has length 127 [2022-11-21 13:46:51,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:46:51,382 INFO L495 AbstractCegarLoop]: Abstraction has 3831 states and 4360 transitions. [2022-11-21 13:46:51,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2022-11-21 13:46:51,383 INFO L276 IsEmpty]: Start isEmpty. Operand 3831 states and 4360 transitions. [2022-11-21 13:46:51,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-21 13:46:51,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:46:51,388 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:46:51,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 13:46:51,389 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:46:51,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:46:51,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1698114183, now seen corresponding path program 1 times [2022-11-21 13:46:51,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:46:51,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960086061] [2022-11-21 13:46:51,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:46:51,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:46:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:46:51,572 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-21 13:46:51,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:46:51,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960086061] [2022-11-21 13:46:51,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960086061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:46:51,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:46:51,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:46:51,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296678093] [2022-11-21 13:46:51,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:46:51,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:46:51,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:46:51,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:46:51,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:46:51,576 INFO L87 Difference]: Start difference. First operand 3831 states and 4360 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 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) [2022-11-21 13:46:51,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:46:51,898 INFO L93 Difference]: Finished difference Result 7082 states and 8080 transitions. [2022-11-21 13:46:51,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:46:51,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 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 148 [2022-11-21 13:46:51,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:46:51,911 INFO L225 Difference]: With dead ends: 7082 [2022-11-21 13:46:51,912 INFO L226 Difference]: Without dead ends: 3111 [2022-11-21 13:46:51,916 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:46:51,919 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 174 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 13:46:51,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 20 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 13:46:51,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3111 states. [2022-11-21 13:46:51,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3111 to 3110. [2022-11-21 13:46:51,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3110 states, 3109 states have (on average 1.112898037954326) internal successors, (3460), 3109 states have internal predecessors, (3460), 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) [2022-11-21 13:46:51,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3110 states to 3110 states and 3460 transitions. [2022-11-21 13:46:51,994 INFO L78 Accepts]: Start accepts. Automaton has 3110 states and 3460 transitions. Word has length 148 [2022-11-21 13:46:51,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:46:51,996 INFO L495 AbstractCegarLoop]: Abstraction has 3110 states and 3460 transitions. [2022-11-21 13:46:51,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 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) [2022-11-21 13:46:51,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3110 states and 3460 transitions. [2022-11-21 13:46:52,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-21 13:46:52,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:46:52,003 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2022-11-21 13:46:52,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 13:46:52,003 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:46:52,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:46:52,004 INFO L85 PathProgramCache]: Analyzing trace with hash -137291506, now seen corresponding path program 1 times [2022-11-21 13:46:52,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:46:52,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912403360] [2022-11-21 13:46:52,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:46:52,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:46:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:46:52,181 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-21 13:46:52,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:46:52,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912403360] [2022-11-21 13:46:52,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912403360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:46:52,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:46:52,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:46:52,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014062785] [2022-11-21 13:46:52,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:46:52,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:46:52,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:46:52,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:46:52,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:46:52,184 INFO L87 Difference]: Start difference. First operand 3110 states and 3460 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2022-11-21 13:46:52,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:46:52,747 INFO L93 Difference]: Finished difference Result 6642 states and 7459 transitions. [2022-11-21 13:46:52,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:46:52,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 161 [2022-11-21 13:46:52,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:46:52,762 INFO L225 Difference]: With dead ends: 6642 [2022-11-21 13:46:52,762 INFO L226 Difference]: Without dead ends: 3674 [2022-11-21 13:46:52,766 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:46:52,767 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 133 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 13:46:52,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 183 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 13:46:52,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2022-11-21 13:46:52,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 3252. [2022-11-21 13:46:52,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3252 states, 3251 states have (on average 1.1098123654260228) internal successors, (3608), 3251 states have internal predecessors, (3608), 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) [2022-11-21 13:46:52,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3252 states to 3252 states and 3608 transitions. [2022-11-21 13:46:52,863 INFO L78 Accepts]: Start accepts. Automaton has 3252 states and 3608 transitions. Word has length 161 [2022-11-21 13:46:52,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:46:52,864 INFO L495 AbstractCegarLoop]: Abstraction has 3252 states and 3608 transitions. [2022-11-21 13:46:52,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2022-11-21 13:46:52,864 INFO L276 IsEmpty]: Start isEmpty. Operand 3252 states and 3608 transitions. [2022-11-21 13:46:52,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-21 13:46:52,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:46:52,872 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:46:52,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 13:46:52,873 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:46:52,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:46:52,874 INFO L85 PathProgramCache]: Analyzing trace with hash -221747488, now seen corresponding path program 1 times [2022-11-21 13:46:52,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:46:52,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724274246] [2022-11-21 13:46:52,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:46:52,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:46:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:46:52,996 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 13:46:52,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:46:52,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724274246] [2022-11-21 13:46:52,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724274246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:46:52,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:46:52,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:46:52,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189906251] [2022-11-21 13:46:52,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:46:52,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:46:53,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:46:53,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:46:53,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:46:53,002 INFO L87 Difference]: Start difference. First operand 3252 states and 3608 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2022-11-21 13:46:53,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:46:53,508 INFO L93 Difference]: Finished difference Result 4095 states and 4514 transitions. [2022-11-21 13:46:53,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:46:53,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 176 [2022-11-21 13:46:53,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:46:53,514 INFO L225 Difference]: With dead ends: 4095 [2022-11-21 13:46:53,514 INFO L226 Difference]: Without dead ends: 1274 [2022-11-21 13:46:53,517 INFO L412 NwaCegarLoop]: 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 [2022-11-21 13:46:53,518 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 96 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 13:46:53,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 227 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 13:46:53,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2022-11-21 13:46:53,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1274. [2022-11-21 13:46:53,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 1.0471327572663) internal successors, (1333), 1273 states have internal predecessors, (1333), 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) [2022-11-21 13:46:53,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 1333 transitions. [2022-11-21 13:46:53,545 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 1333 transitions. Word has length 176 [2022-11-21 13:46:53,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:46:53,545 INFO L495 AbstractCegarLoop]: Abstraction has 1274 states and 1333 transitions. [2022-11-21 13:46:53,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2022-11-21 13:46:53,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 1333 transitions. [2022-11-21 13:46:53,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-21 13:46:53,548 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:46:53,549 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2022-11-21 13:46:53,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 13:46:53,549 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:46:53,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:46:53,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1685234850, now seen corresponding path program 1 times [2022-11-21 13:46:53,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:46:53,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686116871] [2022-11-21 13:46:53,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:46:53,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:46:53,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:46:53,859 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:46:53,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:46:53,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686116871] [2022-11-21 13:46:53,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686116871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:46:53,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:46:53,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 13:46:53,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736466369] [2022-11-21 13:46:53,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:46:53,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:46:53,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:46:53,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:46:53,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:46:53,862 INFO L87 Difference]: Start difference. First operand 1274 states and 1333 transitions. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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) [2022-11-21 13:46:54,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:46:54,598 INFO L93 Difference]: Finished difference Result 2408 states and 2524 transitions. [2022-11-21 13:46:54,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 13:46:54,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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 187 [2022-11-21 13:46:54,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:46:54,604 INFO L225 Difference]: With dead ends: 2408 [2022-11-21 13:46:54,604 INFO L226 Difference]: Without dead ends: 1276 [2022-11-21 13:46:54,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:46:54,607 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 253 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-21 13:46:54,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 211 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-21 13:46:54,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2022-11-21 13:46:54,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1274. [2022-11-21 13:46:54,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 1.0455616653574233) internal successors, (1331), 1273 states have internal predecessors, (1331), 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) [2022-11-21 13:46:54,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 1331 transitions. [2022-11-21 13:46:54,640 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 1331 transitions. Word has length 187 [2022-11-21 13:46:54,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:46:54,641 INFO L495 AbstractCegarLoop]: Abstraction has 1274 states and 1331 transitions. [2022-11-21 13:46:54,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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) [2022-11-21 13:46:54,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 1331 transitions. [2022-11-21 13:46:54,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-11-21 13:46:54,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:46:54,646 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2022-11-21 13:46:54,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 13:46:54,647 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:46:54,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:46:54,648 INFO L85 PathProgramCache]: Analyzing trace with hash -779212980, now seen corresponding path program 1 times [2022-11-21 13:46:54,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:46:54,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916614794] [2022-11-21 13:46:54,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:46:54,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:46:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:46:55,348 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 93 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:46:55,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:46:55,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916614794] [2022-11-21 13:46:55,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916614794] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:46:55,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803034279] [2022-11-21 13:46:55,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:46:55,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:46:55,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:46:55,351 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:46:55,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 13:46:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:46:55,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:46:55,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:46:55,746 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-21 13:46:55,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:46:55,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803034279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:46:55,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 13:46:55,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-21 13:46:55,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257820056] [2022-11-21 13:46:55,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:46:55,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:46:55,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:46:55,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:46:55,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:46:55,750 INFO L87 Difference]: Start difference. First operand 1274 states and 1331 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 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) [2022-11-21 13:46:56,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:46:56,208 INFO L93 Difference]: Finished difference Result 2404 states and 2517 transitions. [2022-11-21 13:46:56,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:46:56,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 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 219 [2022-11-21 13:46:56,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:46:56,210 INFO L225 Difference]: With dead ends: 2404 [2022-11-21 13:46:56,210 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 13:46:56,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:46:56,214 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 70 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 13:46:56,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 170 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 13:46:56,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 13:46:56,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 13:46:56,217 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) [2022-11-21 13:46:56,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 13:46:56,218 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 219 [2022-11-21 13:46:56,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:46:56,218 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 13:46:56,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 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) [2022-11-21 13:46:56,219 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 13:46:56,219 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 13:46:56,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 13:46:56,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 13:46:56,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-21 13:46:56,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 13:46:57,090 INFO L899 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,090 INFO L899 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,090 INFO L899 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,090 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2022-11-21 13:46:57,091 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2022-11-21 13:46:57,091 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2022-11-21 13:46:57,091 INFO L899 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2022-11-21 13:46:57,091 INFO L899 garLoopResultBuilder]: For program point L500(line 500) no Hoare annotation was computed. [2022-11-21 13:46:57,091 INFO L899 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2022-11-21 13:46:57,091 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2022-11-21 13:46:57,091 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2022-11-21 13:46:57,092 INFO L899 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,092 INFO L899 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,092 INFO L899 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,092 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2022-11-21 13:46:57,092 INFO L899 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2022-11-21 13:46:57,092 INFO L899 garLoopResultBuilder]: For program point L503(line 503) no Hoare annotation was computed. [2022-11-21 13:46:57,092 INFO L899 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2022-11-21 13:46:57,093 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2022-11-21 13:46:57,093 INFO L899 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,093 INFO L899 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,093 INFO L899 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,093 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2022-11-21 13:46:57,093 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2022-11-21 13:46:57,093 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2022-11-21 13:46:57,094 INFO L899 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2022-11-21 13:46:57,094 INFO L899 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2022-11-21 13:46:57,094 INFO L899 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2022-11-21 13:46:57,094 INFO L899 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2022-11-21 13:46:57,094 INFO L899 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2022-11-21 13:46:57,094 INFO L899 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2022-11-21 13:46:57,094 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2022-11-21 13:46:57,095 INFO L899 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,095 INFO L899 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,095 INFO L899 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,095 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2022-11-21 13:46:57,095 INFO L899 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2022-11-21 13:46:57,095 INFO L899 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2022-11-21 13:46:57,095 INFO L899 garLoopResultBuilder]: For program point L443(line 443) no Hoare annotation was computed. [2022-11-21 13:46:57,096 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2022-11-21 13:46:57,096 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2022-11-21 13:46:57,096 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2022-11-21 13:46:57,096 INFO L899 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,096 INFO L899 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,096 INFO L899 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,096 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2022-11-21 13:46:57,097 INFO L899 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2022-11-21 13:46:57,097 INFO L899 garLoopResultBuilder]: For program point L512(line 512) no Hoare annotation was computed. [2022-11-21 13:46:57,097 INFO L899 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2022-11-21 13:46:57,097 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2022-11-21 13:46:57,097 INFO L899 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2022-11-21 13:46:57,097 INFO L899 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2022-11-21 13:46:57,097 INFO L899 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,097 INFO L899 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,098 INFO L899 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,098 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2022-11-21 13:46:57,098 INFO L899 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2022-11-21 13:46:57,098 INFO L899 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2022-11-21 13:46:57,098 INFO L899 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2022-11-21 13:46:57,098 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2022-11-21 13:46:57,098 INFO L899 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,103 INFO L899 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,103 INFO L899 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,103 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2022-11-21 13:46:57,104 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2022-11-21 13:46:57,104 INFO L899 garLoopResultBuilder]: For program point L584(line 584) no Hoare annotation was computed. [2022-11-21 13:46:57,104 INFO L899 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2022-11-21 13:46:57,104 INFO L899 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2022-11-21 13:46:57,105 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2022-11-21 13:46:57,105 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2022-11-21 13:46:57,105 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2022-11-21 13:46:57,105 INFO L899 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,105 INFO L899 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,106 INFO L899 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,107 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2022-11-21 13:46:57,107 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 13:46:57,107 INFO L899 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2022-11-21 13:46:57,107 INFO L899 garLoopResultBuilder]: For program point L521(line 521) no Hoare annotation was computed. [2022-11-21 13:46:57,108 INFO L899 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2022-11-21 13:46:57,108 INFO L899 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2022-11-21 13:46:57,108 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2022-11-21 13:46:57,109 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2022-11-21 13:46:57,109 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2022-11-21 13:46:57,109 INFO L899 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,109 INFO L899 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,109 INFO L899 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,110 INFO L899 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2022-11-21 13:46:57,110 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2022-11-21 13:46:57,110 INFO L899 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2022-11-21 13:46:57,110 INFO L899 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2022-11-21 13:46:57,110 INFO L899 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2022-11-21 13:46:57,111 INFO L899 garLoopResultBuilder]: For program point L524(line 524) no Hoare annotation was computed. [2022-11-21 13:46:57,111 INFO L899 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2022-11-21 13:46:57,111 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2022-11-21 13:46:57,111 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2022-11-21 13:46:57,111 INFO L899 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,112 INFO L899 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,112 INFO L899 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,112 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2022-11-21 13:46:57,112 INFO L899 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2022-11-21 13:46:57,113 INFO L899 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2022-11-21 13:46:57,113 INFO L899 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2022-11-21 13:46:57,113 INFO L899 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2022-11-21 13:46:57,113 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2022-11-21 13:46:57,113 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 13:46:57,114 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 449) no Hoare annotation was computed. [2022-11-21 13:46:57,114 INFO L899 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,114 INFO L899 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,114 INFO L899 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,114 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2022-11-21 13:46:57,115 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2022-11-21 13:46:57,115 INFO L899 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2022-11-21 13:46:57,115 INFO L899 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2022-11-21 13:46:57,115 INFO L899 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2022-11-21 13:46:57,115 INFO L899 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2022-11-21 13:46:57,115 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2022-11-21 13:46:57,116 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2022-11-21 13:46:57,116 INFO L899 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,116 INFO L899 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,116 INFO L899 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,116 INFO L899 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2022-11-21 13:46:57,117 INFO L899 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2022-11-21 13:46:57,117 INFO L899 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2022-11-21 13:46:57,120 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2022-11-21 13:46:57,121 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2022-11-21 13:46:57,121 INFO L899 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,121 INFO L899 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,121 INFO L899 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,121 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2022-11-21 13:46:57,121 INFO L899 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2022-11-21 13:46:57,122 INFO L899 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2022-11-21 13:46:57,122 INFO L899 garLoopResultBuilder]: For program point L470(line 470) no Hoare annotation was computed. [2022-11-21 13:46:57,122 INFO L899 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2022-11-21 13:46:57,122 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2022-11-21 13:46:57,122 INFO L899 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2022-11-21 13:46:57,123 INFO L899 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2022-11-21 13:46:57,123 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2022-11-21 13:46:57,123 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2022-11-21 13:46:57,123 INFO L899 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2022-11-21 13:46:57,123 INFO L899 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,123 INFO L899 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,124 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2022-11-21 13:46:57,124 INFO L899 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2022-11-21 13:46:57,124 INFO L899 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2022-11-21 13:46:57,124 INFO L899 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2022-11-21 13:46:57,124 INFO L899 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2022-11-21 13:46:57,124 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2022-11-21 13:46:57,125 INFO L899 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2022-11-21 13:46:57,125 INFO L899 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2022-11-21 13:46:57,125 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2022-11-21 13:46:57,130 INFO L895 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 0)) (.cse6 (= ~a25~0 1)) (.cse5 (<= ~a28~0 7)) (.cse7 (= ~a11~0 1)) (.cse8 (<= 9 ~a28~0)) (.cse0 (<= ~a17~0 8)) (.cse1 (<= ~a11~0 0)) (.cse2 (<= ~a28~0 10)) (.cse4 (= ~a19~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= ~a25~0 ~a11~0) .cse0 .cse1 .cse4 .cse5) (and .cse6 .cse0 .cse4 .cse5) (and .cse7 .cse0 .cse5 .cse3) (and .cse6 .cse0 .cse1 .cse4) (and .cse8 .cse7 .cse0 .cse2 .cse4) (and .cse8 .cse6 .cse7 .cse0 .cse2) (and .cse6 .cse1 .cse4 .cse5) (and (<= 10 ~a28~0) .cse7 .cse0 .cse2) (and .cse8 .cse0 .cse1 .cse2 .cse4))) [2022-11-21 13:46:57,130 INFO L899 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,131 INFO L899 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,131 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2022-11-21 13:46:57,131 INFO L899 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2022-11-21 13:46:57,131 INFO L899 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2022-11-21 13:46:57,131 INFO L899 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2022-11-21 13:46:57,132 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2022-11-21 13:46:57,132 INFO L899 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2022-11-21 13:46:57,132 INFO L902 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2022-11-21 13:46:57,132 INFO L899 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,132 INFO L899 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,132 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2022-11-21 13:46:57,133 INFO L899 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2022-11-21 13:46:57,133 INFO L899 garLoopResultBuilder]: For program point L479(line 479) no Hoare annotation was computed. [2022-11-21 13:46:57,133 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2022-11-21 13:46:57,133 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2022-11-21 13:46:57,133 INFO L899 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2022-11-21 13:46:57,133 INFO L899 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2022-11-21 13:46:57,134 INFO L899 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2022-11-21 13:46:57,134 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2022-11-21 13:46:57,134 INFO L899 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,134 INFO L899 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,134 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2022-11-21 13:46:57,134 INFO L899 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2022-11-21 13:46:57,135 INFO L899 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2022-11-21 13:46:57,135 INFO L899 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2022-11-21 13:46:57,135 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 13:46:57,135 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2022-11-21 13:46:57,135 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2022-11-21 13:46:57,136 INFO L895 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 0)) (.cse6 (= ~a25~0 1)) (.cse5 (<= ~a28~0 7)) (.cse7 (= ~a11~0 1)) (.cse8 (<= 9 ~a28~0)) (.cse0 (<= ~a17~0 8)) (.cse1 (<= ~a11~0 0)) (.cse2 (<= ~a28~0 10)) (.cse4 (= ~a19~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= ~a25~0 ~a11~0) .cse0 .cse1 .cse4 .cse5) (and .cse6 .cse0 .cse4 .cse5) (and .cse7 .cse0 .cse5 .cse3) (and .cse6 .cse0 .cse1 .cse4) (and .cse8 .cse7 .cse0 .cse2 .cse4) (and .cse8 .cse6 .cse7 .cse0 .cse2) (and .cse6 .cse1 .cse4 .cse5) (and (<= 10 ~a28~0) .cse7 .cse0 .cse2) (and .cse8 .cse0 .cse1 .cse2 .cse4))) [2022-11-21 13:46:57,136 INFO L899 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,136 INFO L899 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,136 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2022-11-21 13:46:57,137 INFO L899 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2022-11-21 13:46:57,137 INFO L899 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2022-11-21 13:46:57,137 INFO L899 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2022-11-21 13:46:57,137 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2022-11-21 13:46:57,137 INFO L899 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,137 INFO L899 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,138 INFO L899 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2022-11-21 13:46:57,138 INFO L899 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2022-11-21 13:46:57,138 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2022-11-21 13:46:57,138 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2022-11-21 13:46:57,138 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2022-11-21 13:46:57,138 INFO L899 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2022-11-21 13:46:57,139 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2022-11-21 13:46:57,139 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2022-11-21 13:46:57,139 INFO L899 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2022-11-21 13:46:57,139 INFO L899 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,139 INFO L899 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,139 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2022-11-21 13:46:57,140 INFO L899 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,140 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 13:46:57,140 INFO L899 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2022-11-21 13:46:57,140 INFO L899 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2022-11-21 13:46:57,140 INFO L899 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2022-11-21 13:46:57,140 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2022-11-21 13:46:57,141 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2022-11-21 13:46:57,141 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2022-11-21 13:46:57,141 INFO L899 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,141 INFO L899 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,141 INFO L899 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,141 INFO L899 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2022-11-21 13:46:57,142 INFO L899 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2022-11-21 13:46:57,142 INFO L899 garLoopResultBuilder]: For program point L428(line 428) no Hoare annotation was computed. [2022-11-21 13:46:57,142 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2022-11-21 13:46:57,142 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2022-11-21 13:46:57,142 INFO L899 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,142 INFO L899 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,143 INFO L899 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2022-11-21 13:46:57,143 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2022-11-21 13:46:57,143 INFO L899 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2022-11-21 13:46:57,143 INFO L899 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2022-11-21 13:46:57,143 INFO L899 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2022-11-21 13:46:57,143 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2022-11-21 13:46:57,144 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2022-11-21 13:46:57,147 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:46:57,151 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:46:57,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:46:57 BoogieIcfgContainer [2022-11-21 13:46:57,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:46:57,189 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:46:57,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:46:57,190 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:46:57,191 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:46:42" (3/4) ... [2022-11-21 13:46:57,194 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 13:46:57,222 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-21 13:46:57,223 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 13:46:57,224 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 13:46:57,225 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 13:46:57,359 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 13:46:57,360 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:46:57,361 INFO L158 Benchmark]: Toolchain (without parser) took 17020.30ms. Allocated memory was 174.1MB in the beginning and 333.4MB in the end (delta: 159.4MB). Free memory was 127.8MB in the beginning and 220.1MB in the end (delta: -92.3MB). Peak memory consumption was 70.1MB. Max. memory is 16.1GB. [2022-11-21 13:46:57,361 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 132.1MB. Free memory was 73.0MB in the beginning and 72.9MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:46:57,361 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.45ms. Allocated memory is still 174.1MB. Free memory was 127.8MB in the beginning and 101.3MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-21 13:46:57,362 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.50ms. Allocated memory is still 174.1MB. Free memory was 101.3MB in the beginning and 95.7MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-21 13:46:57,363 INFO L158 Benchmark]: Boogie Preprocessor took 105.58ms. Allocated memory is still 174.1MB. Free memory was 95.7MB in the beginning and 91.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 13:46:57,363 INFO L158 Benchmark]: RCFGBuilder took 1465.31ms. Allocated memory is still 174.1MB. Free memory was 91.5MB in the beginning and 77.6MB in the end (delta: 13.9MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2022-11-21 13:46:57,364 INFO L158 Benchmark]: TraceAbstraction took 14581.98ms. Allocated memory was 174.1MB in the beginning and 333.4MB in the end (delta: 159.4MB). Free memory was 77.6MB in the beginning and 230.7MB in the end (delta: -153.2MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-11-21 13:46:57,365 INFO L158 Benchmark]: Witness Printer took 170.43ms. Allocated memory is still 333.4MB. Free memory was 230.7MB in the beginning and 220.1MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 13:46:57,371 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 132.1MB. Free memory was 73.0MB in the beginning and 72.9MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.45ms. Allocated memory is still 174.1MB. Free memory was 127.8MB in the beginning and 101.3MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.50ms. Allocated memory is still 174.1MB. Free memory was 101.3MB in the beginning and 95.7MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 105.58ms. Allocated memory is still 174.1MB. Free memory was 95.7MB in the beginning and 91.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1465.31ms. Allocated memory is still 174.1MB. Free memory was 91.5MB in the beginning and 77.6MB in the end (delta: 13.9MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * TraceAbstraction took 14581.98ms. Allocated memory was 174.1MB in the beginning and 333.4MB in the end (delta: 159.4MB). Free memory was 77.6MB in the beginning and 230.7MB in the end (delta: -153.2MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 170.43ms. Allocated memory is still 333.4MB. Free memory was 230.7MB in the beginning and 220.1MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * 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: 449]: 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, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.5s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1811 SdHoareTripleChecker+Valid, 7.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1811 mSDsluCounter, 2095 SdHoareTripleChecker+Invalid, 5.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 198 mSDsCounter, 717 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4757 IncrementalHoareTripleChecker+Invalid, 5474 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 717 mSolverCounterUnsat, 1897 mSDtfsCounter, 4757 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 357 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3831occurred in iteration=7, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 728 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 43 NumberOfFragments, 287 HoareAnnotationTreeSize, 3 FomulaSimplifications, 48 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 580 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 2048 NumberOfCodeBlocks, 2048 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2033 ConstructedInterpolants, 0 QuantifiedInterpolants, 6151 SizeOfPredicates, 0 NumberOfNonLiveVariables, 600 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 953/1062 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: 616]: Loop Invariant Derived loop invariant: (((((((((((a17 <= 8 && a11 <= 0) && a28 <= 10) && a19 <= 0) || ((((a25 == a11 && a17 <= 8) && a11 <= 0) && a19 == 1) && a28 <= 7)) || (((a25 == 1 && a17 <= 8) && a19 == 1) && a28 <= 7)) || (((a11 == 1 && a17 <= 8) && a28 <= 7) && a19 <= 0)) || (((a25 == 1 && a17 <= 8) && a11 <= 0) && a19 == 1)) || ((((9 <= a28 && a11 == 1) && a17 <= 8) && a28 <= 10) && a19 == 1)) || ((((9 <= a28 && a25 == 1) && a11 == 1) && a17 <= 8) && a28 <= 10)) || (((a25 == 1 && a11 <= 0) && a19 == 1) && a28 <= 7)) || (((10 <= a28 && a11 == 1) && a17 <= 8) && a28 <= 10)) || ((((9 <= a28 && a17 <= 8) && a11 <= 0) && a28 <= 10) && a19 == 1) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((((((a17 <= 8 && a11 <= 0) && a28 <= 10) && a19 <= 0) || ((((a25 == a11 && a17 <= 8) && a11 <= 0) && a19 == 1) && a28 <= 7)) || (((a25 == 1 && a17 <= 8) && a19 == 1) && a28 <= 7)) || (((a11 == 1 && a17 <= 8) && a28 <= 7) && a19 <= 0)) || (((a25 == 1 && a17 <= 8) && a11 <= 0) && a19 == 1)) || ((((9 <= a28 && a11 == 1) && a17 <= 8) && a28 <= 10) && a19 == 1)) || ((((9 <= a28 && a25 == 1) && a11 == 1) && a17 <= 8) && a28 <= 10)) || (((a25 == 1 && a11 <= 0) && a19 == 1) && a28 <= 7)) || (((10 <= a28 && a11 == 1) && a17 <= 8) && a28 <= 10)) || ((((9 <= a28 && a17 <= 8) && a11 <= 0) && a28 <= 10) && a19 == 1) RESULT: Ultimate proved your program to be correct! [2022-11-21 13:46:57,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1e9007e-9103-45e3-972d-412a81c969c6/bin/uautomizer-vX5HgA9Q3a/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