./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label19.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label19.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y --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 5b769442af2d950aaf4b68e467259bd2e1d98c5d8ca4dcdd5a740ef956112baf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:04:09,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:04:09,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:04:10,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:04:10,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:04:10,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:04:10,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:04:10,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:04:10,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:04:10,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:04:10,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:04:10,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:04:10,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:04:10,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:04:10,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:04:10,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:04:10,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:04:10,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:04:10,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:04:10,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:04:10,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:04:10,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:04:10,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:04:10,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:04:10,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:04:10,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:04:10,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:04:10,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:04:10,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:04:10,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:04:10,056 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:04:10,057 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:04:10,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:04:10,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:04:10,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:04:10,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:04:10,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:04:10,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:04:10,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:04:10,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:04:10,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:04:10,071 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 18:04:10,101 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:04:10,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:04:10,101 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:04:10,102 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:04:10,102 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:04:10,103 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:04:10,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:04:10,104 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:04:10,104 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:04:10,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:04:10,104 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:04:10,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:04:10,105 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:04:10,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:04:10,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:04:10,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:04:10,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:04:10,106 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:04:10,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:04:10,106 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:04:10,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:04:10,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:04:10,107 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:04:10,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:04:10,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:04:10,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:04:10,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:04:10,108 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:04:10,108 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:04:10,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:04:10,109 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:04:10,109 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:04:10,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:04:10,110 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:04:10,110 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_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b769442af2d950aaf4b68e467259bd2e1d98c5d8ca4dcdd5a740ef956112baf [2021-11-13 18:04:10,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:04:10,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:04:10,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:04:10,484 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:04:10,485 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:04:10,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/eca-rers2012/Problem14_label19.c [2021-11-13 18:04:10,590 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/data/bd786d2c6/35772dd6d58f47b5b2679850916d954b/FLAG1c09b837e [2021-11-13 18:04:11,279 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:04:11,279 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/sv-benchmarks/c/eca-rers2012/Problem14_label19.c [2021-11-13 18:04:11,305 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/data/bd786d2c6/35772dd6d58f47b5b2679850916d954b/FLAG1c09b837e [2021-11-13 18:04:11,503 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/data/bd786d2c6/35772dd6d58f47b5b2679850916d954b [2021-11-13 18:04:11,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:04:11,507 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:04:11,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:04:11,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:04:11,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:04:11,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:04:11" (1/1) ... [2021-11-13 18:04:11,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23f28536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:11, skipping insertion in model container [2021-11-13 18:04:11,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:04:11" (1/1) ... [2021-11-13 18:04:11,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:04:11,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:04:11,953 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/sv-benchmarks/c/eca-rers2012/Problem14_label19.c[6323,6336] [2021-11-13 18:04:12,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:04:12,274 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:04:12,332 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/sv-benchmarks/c/eca-rers2012/Problem14_label19.c[6323,6336] [2021-11-13 18:04:12,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:04:12,473 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:04:12,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:12 WrapperNode [2021-11-13 18:04:12,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:04:12,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:04:12,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:04:12,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:04:12,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:12" (1/1) ... [2021-11-13 18:04:12,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:12" (1/1) ... [2021-11-13 18:04:12,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:04:12,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:04:12,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:04:12,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:04:12,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:12" (1/1) ... [2021-11-13 18:04:12,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:12" (1/1) ... [2021-11-13 18:04:12,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:12" (1/1) ... [2021-11-13 18:04:12,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:12" (1/1) ... [2021-11-13 18:04:12,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:12" (1/1) ... [2021-11-13 18:04:12,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:12" (1/1) ... [2021-11-13 18:04:12,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:12" (1/1) ... [2021-11-13 18:04:12,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:04:12,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:04:12,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:04:12,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:04:12,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:12" (1/1) ... [2021-11-13 18:04:12,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:04:12,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:04:12,833 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:04:12,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:04:12,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:04:12,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:04:12,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:04:12,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:04:14,528 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:04:14,528 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 18:04:14,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:04:14 BoogieIcfgContainer [2021-11-13 18:04:14,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:04:14,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:04:14,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:04:14,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:04:14,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:04:11" (1/3) ... [2021-11-13 18:04:14,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794c676a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:04:14, skipping insertion in model container [2021-11-13 18:04:14,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:12" (2/3) ... [2021-11-13 18:04:14,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794c676a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:04:14, skipping insertion in model container [2021-11-13 18:04:14,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:04:14" (3/3) ... [2021-11-13 18:04:14,540 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label19.c [2021-11-13 18:04:14,546 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:04:14,546 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:04:14,599 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:04:14,606 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:04:14,606 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:04:14,629 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:14,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-13 18:04:14,638 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:04:14,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:04:14,640 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:04:14,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:14,646 INFO L85 PathProgramCache]: Analyzing trace with hash 531730986, now seen corresponding path program 1 times [2021-11-13 18:04:14,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:14,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616088480] [2021-11-13 18:04:14,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:14,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:15,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:04:15,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:04:15,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616088480] [2021-11-13 18:04:15,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616088480] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:04:15,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:04:15,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:04:15,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277068705] [2021-11-13 18:04:15,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:04:15,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:04:15,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:04:15,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:04:15,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:04:15,091 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:17,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:04:17,264 INFO L93 Difference]: Finished difference Result 850 states and 1558 transitions. [2021-11-13 18:04:17,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:04:17,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2021-11-13 18:04:17,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:04:17,289 INFO L225 Difference]: With dead ends: 850 [2021-11-13 18:04:17,290 INFO L226 Difference]: Without dead ends: 538 [2021-11-13 18:04:17,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:04:17,300 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 464 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1595.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.24ms SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1977.68ms IncrementalHoareTripleChecker+Time [2021-11-13 18:04:17,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [464 Valid, 194 Invalid, 1604 Unknown, 0 Unchecked, 24.24ms Time], IncrementalHoareTripleChecker [267 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 1977.68ms Time] [2021-11-13 18:04:17,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-11-13 18:04:17,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-11-13 18:04:17,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4487895716945995) internal successors, (778), 537 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:17,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2021-11-13 18:04:17,445 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 62 [2021-11-13 18:04:17,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:04:17,447 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2021-11-13 18:04:17,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:17,448 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2021-11-13 18:04:17,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-13 18:04:17,462 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:04:17,462 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:04:17,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:04:17,463 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:04:17,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:17,465 INFO L85 PathProgramCache]: Analyzing trace with hash -56024554, now seen corresponding path program 1 times [2021-11-13 18:04:17,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:17,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158745268] [2021-11-13 18:04:17,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:17,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:17,815 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:04:17,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:04:17,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158745268] [2021-11-13 18:04:17,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158745268] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:04:17,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:04:17,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:04:17,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900968271] [2021-11-13 18:04:17,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:04:17,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:04:17,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:04:17,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:04:17,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:04:17,820 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:18,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:04:18,903 INFO L93 Difference]: Finished difference Result 1283 states and 1979 transitions. [2021-11-13 18:04:18,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:04:18,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 142 [2021-11-13 18:04:18,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:04:18,914 INFO L225 Difference]: With dead ends: 1283 [2021-11-13 18:04:18,914 INFO L226 Difference]: Without dead ends: 896 [2021-11-13 18:04:18,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:04:18,926 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 120 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 820.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.77ms SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1023.67ms IncrementalHoareTripleChecker+Time [2021-11-13 18:04:18,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 121 Invalid, 851 Unknown, 0 Unchecked, 8.77ms Time], IncrementalHoareTripleChecker [188 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 1023.67ms Time] [2021-11-13 18:04:18,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2021-11-13 18:04:18,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 894. [2021-11-13 18:04:18,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.1836506159014557) internal successors, (1057), 893 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:18,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1057 transitions. [2021-11-13 18:04:18,987 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1057 transitions. Word has length 142 [2021-11-13 18:04:18,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:04:18,993 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1057 transitions. [2021-11-13 18:04:18,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:18,994 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1057 transitions. [2021-11-13 18:04:19,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-13 18:04:19,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:04:19,003 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:04:19,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:04:19,003 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:04:19,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:19,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1675654197, now seen corresponding path program 1 times [2021-11-13 18:04:19,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:19,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453712713] [2021-11-13 18:04:19,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:19,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:19,341 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 119 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:04:19,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:04:19,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453712713] [2021-11-13 18:04:19,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453712713] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:04:19,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174291314] [2021-11-13 18:04:19,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:19,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:04:19,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:04:19,345 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:04:19,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 18:04:19,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:19,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:04:19,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:04:20,231 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-11-13 18:04:20,232 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:04:20,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174291314] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:04:20,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:04:20,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-13 18:04:20,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337281648] [2021-11-13 18:04:20,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:04:20,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:04:20,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:04:20,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:04:20,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:04:20,243 INFO L87 Difference]: Start difference. First operand 894 states and 1057 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:21,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:04:21,074 INFO L93 Difference]: Finished difference Result 1964 states and 2439 transitions. [2021-11-13 18:04:21,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:04:21,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 233 [2021-11-13 18:04:21,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:04:21,084 INFO L225 Difference]: With dead ends: 1964 [2021-11-13 18:04:21,084 INFO L226 Difference]: Without dead ends: 1250 [2021-11-13 18:04:21,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:04:21,100 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 84 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 646.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.54ms SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 789.99ms IncrementalHoareTripleChecker+Time [2021-11-13 18:04:21,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 47 Invalid, 526 Unknown, 0 Unchecked, 4.54ms Time], IncrementalHoareTripleChecker [124 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 789.99ms Time] [2021-11-13 18:04:21,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-11-13 18:04:21,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2021-11-13 18:04:21,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.188150520416333) internal successors, (1484), 1249 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:21,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1484 transitions. [2021-11-13 18:04:21,167 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1484 transitions. Word has length 233 [2021-11-13 18:04:21,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:04:21,180 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1484 transitions. [2021-11-13 18:04:21,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:21,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1484 transitions. [2021-11-13 18:04:21,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-13 18:04:21,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:04:21,188 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:04:21,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:04:21,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:04:21,389 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:04:21,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:21,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1903372100, now seen corresponding path program 1 times [2021-11-13 18:04:21,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:21,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766004811] [2021-11-13 18:04:21,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:21,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:21,534 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:04:21,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:04:21,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766004811] [2021-11-13 18:04:21,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766004811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:04:21,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:04:21,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:04:21,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708383099] [2021-11-13 18:04:21,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:04:21,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:04:21,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:04:21,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:04:21,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:04:21,538 INFO L87 Difference]: Start difference. First operand 1250 states and 1484 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:22,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:04:22,284 INFO L93 Difference]: Finished difference Result 2854 states and 3434 transitions. [2021-11-13 18:04:22,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:04:22,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 236 [2021-11-13 18:04:22,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:04:22,296 INFO L225 Difference]: With dead ends: 2854 [2021-11-13 18:04:22,297 INFO L226 Difference]: Without dead ends: 1784 [2021-11-13 18:04:22,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:04:22,300 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 568.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.24ms SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 693.17ms IncrementalHoareTripleChecker+Time [2021-11-13 18:04:22,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 77 Invalid, 519 Unknown, 0 Unchecked, 5.24ms Time], IncrementalHoareTripleChecker [50 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 693.17ms Time] [2021-11-13 18:04:22,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-11-13 18:04:22,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1784. [2021-11-13 18:04:22,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1542344363432417) internal successors, (2058), 1783 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:22,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2058 transitions. [2021-11-13 18:04:22,353 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2058 transitions. Word has length 236 [2021-11-13 18:04:22,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:04:22,354 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 2058 transitions. [2021-11-13 18:04:22,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:22,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2058 transitions. [2021-11-13 18:04:22,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2021-11-13 18:04:22,362 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:04:22,362 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 18:04:22,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:04:22,363 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:04:22,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:22,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1408732317, now seen corresponding path program 1 times [2021-11-13 18:04:22,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:22,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583824162] [2021-11-13 18:04:22,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:22,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:22,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:22,549 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-11-13 18:04:22,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:04:22,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583824162] [2021-11-13 18:04:22,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583824162] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:04:22,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:04:22,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:04:22,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131020608] [2021-11-13 18:04:22,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:04:22,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:04:22,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:04:22,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:04:22,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:04:22,553 INFO L87 Difference]: Start difference. First operand 1784 states and 2058 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:23,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:04:23,374 INFO L93 Difference]: Finished difference Result 3417 states and 4000 transitions. [2021-11-13 18:04:23,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:04:23,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 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 353 [2021-11-13 18:04:23,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:04:23,388 INFO L225 Difference]: With dead ends: 3417 [2021-11-13 18:04:23,388 INFO L226 Difference]: Without dead ends: 1962 [2021-11-13 18:04:23,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:04:23,393 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 125 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 638.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.16ms SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 764.19ms IncrementalHoareTripleChecker+Time [2021-11-13 18:04:23,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 17 Invalid, 745 Unknown, 0 Unchecked, 5.16ms Time], IncrementalHoareTripleChecker [59 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 764.19ms Time] [2021-11-13 18:04:23,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-11-13 18:04:23,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2021-11-13 18:04:23,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1099270891755468) internal successors, (1979), 1783 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:23,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1979 transitions. [2021-11-13 18:04:23,451 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1979 transitions. Word has length 353 [2021-11-13 18:04:23,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:04:23,452 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 1979 transitions. [2021-11-13 18:04:23,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:23,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1979 transitions. [2021-11-13 18:04:23,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2021-11-13 18:04:23,470 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:04:23,470 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 18:04:23,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:04:23,471 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:04:23,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:23,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1006014571, now seen corresponding path program 1 times [2021-11-13 18:04:23,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:23,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040300480] [2021-11-13 18:04:23,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:23,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:23,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:23,767 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2021-11-13 18:04:23,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:04:23,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040300480] [2021-11-13 18:04:23,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040300480] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:04:23,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172328379] [2021-11-13 18:04:23,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:23,769 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:04:23,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:04:23,770 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:04:23,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 18:04:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:23,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:04:23,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:04:25,302 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2021-11-13 18:04:25,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:04:25,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172328379] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:04:25,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:04:25,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-11-13 18:04:25,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900139892] [2021-11-13 18:04:25,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:04:25,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:04:25,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:04:25,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:04:25,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:04:25,306 INFO L87 Difference]: Start difference. First operand 1784 states and 1979 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:25,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:04:25,871 INFO L93 Difference]: Finished difference Result 2498 states and 2748 transitions. [2021-11-13 18:04:25,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:04:25,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 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 442 [2021-11-13 18:04:25,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:04:25,887 INFO L225 Difference]: With dead ends: 2498 [2021-11-13 18:04:25,888 INFO L226 Difference]: Without dead ends: 2496 [2021-11-13 18:04:25,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:04:25,890 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 27 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 431.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.39ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 526.64ms IncrementalHoareTripleChecker+Time [2021-11-13 18:04:25,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 11 Invalid, 458 Unknown, 0 Unchecked, 3.39ms Time], IncrementalHoareTripleChecker [17 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 526.64ms Time] [2021-11-13 18:04:25,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-11-13 18:04:25,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 1606. [2021-11-13 18:04:25,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.0859813084112149) internal successors, (1743), 1605 states have internal predecessors, (1743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:25,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1743 transitions. [2021-11-13 18:04:25,968 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1743 transitions. Word has length 442 [2021-11-13 18:04:25,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:04:25,970 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1743 transitions. [2021-11-13 18:04:25,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:25,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1743 transitions. [2021-11-13 18:04:25,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2021-11-13 18:04:25,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:04:25,982 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-11-13 18:04:26,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 18:04:26,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:04:26,207 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:04:26,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:26,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1492890716, now seen corresponding path program 1 times [2021-11-13 18:04:26,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:26,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925344727] [2021-11-13 18:04:26,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:26,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:26,430 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 445 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-11-13 18:04:26,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:04:26,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925344727] [2021-11-13 18:04:26,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925344727] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:04:26,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:04:26,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:04:26,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906089029] [2021-11-13 18:04:26,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:04:26,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:04:26,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:04:26,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:04:26,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:04:26,434 INFO L87 Difference]: Start difference. First operand 1606 states and 1743 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:27,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:04:27,072 INFO L93 Difference]: Finished difference Result 3566 states and 3923 transitions. [2021-11-13 18:04:27,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:04:27,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 448 [2021-11-13 18:04:27,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:04:27,085 INFO L225 Difference]: With dead ends: 3566 [2021-11-13 18:04:27,085 INFO L226 Difference]: Without dead ends: 2140 [2021-11-13 18:04:27,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:04:27,089 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 482.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.18ms SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 590.31ms IncrementalHoareTripleChecker+Time [2021-11-13 18:04:27,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 245 Invalid, 465 Unknown, 0 Unchecked, 5.18ms Time], IncrementalHoareTripleChecker [55 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 590.31ms Time] [2021-11-13 18:04:27,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2021-11-13 18:04:27,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1784. [2021-11-13 18:04:27,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.0779584969153113) internal successors, (1922), 1783 states have internal predecessors, (1922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:27,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1922 transitions. [2021-11-13 18:04:27,145 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1922 transitions. Word has length 448 [2021-11-13 18:04:27,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:04:27,146 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 1922 transitions. [2021-11-13 18:04:27,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:27,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1922 transitions. [2021-11-13 18:04:27,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2021-11-13 18:04:27,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:04:27,158 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:04:27,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:04:27,158 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:04:27,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:27,159 INFO L85 PathProgramCache]: Analyzing trace with hash 2114704159, now seen corresponding path program 1 times [2021-11-13 18:04:27,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:27,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173503615] [2021-11-13 18:04:27,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:27,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:27,429 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 445 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-11-13 18:04:27,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:04:27,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173503615] [2021-11-13 18:04:27,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173503615] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:04:27,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:04:27,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:04:27,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138421953] [2021-11-13 18:04:27,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:04:27,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:04:27,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:04:27,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:04:27,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:04:27,435 INFO L87 Difference]: Start difference. First operand 1784 states and 1922 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:28,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:04:28,052 INFO L93 Difference]: Finished difference Result 4100 states and 4485 transitions. [2021-11-13 18:04:28,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:04:28,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 455 [2021-11-13 18:04:28,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:04:28,066 INFO L225 Difference]: With dead ends: 4100 [2021-11-13 18:04:28,067 INFO L226 Difference]: Without dead ends: 2496 [2021-11-13 18:04:28,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:04:28,073 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 112 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 467.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.91ms SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 566.31ms IncrementalHoareTripleChecker+Time [2021-11-13 18:04:28,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 203 Invalid, 488 Unknown, 0 Unchecked, 4.91ms Time], IncrementalHoareTripleChecker [65 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 566.31ms Time] [2021-11-13 18:04:28,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-11-13 18:04:28,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2318. [2021-11-13 18:04:28,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.0845921450151057) internal successors, (2513), 2317 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:28,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2513 transitions. [2021-11-13 18:04:28,139 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2513 transitions. Word has length 455 [2021-11-13 18:04:28,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:04:28,139 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2513 transitions. [2021-11-13 18:04:28,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:28,140 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2513 transitions. [2021-11-13 18:04:28,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2021-11-13 18:04:28,145 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:04:28,145 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:04:28,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 18:04:28,146 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:04:28,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:28,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1878960350, now seen corresponding path program 1 times [2021-11-13 18:04:28,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:28,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150193047] [2021-11-13 18:04:28,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:28,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:28,394 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 559 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-11-13 18:04:28,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:04:28,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150193047] [2021-11-13 18:04:28,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150193047] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:04:28,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:04:28,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:04:28,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682672272] [2021-11-13 18:04:28,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:04:28,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:04:28,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:04:28,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:04:28,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:04:28,398 INFO L87 Difference]: Start difference. First operand 2318 states and 2513 transitions. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:29,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:04:29,033 INFO L93 Difference]: Finished difference Result 5524 states and 6078 transitions. [2021-11-13 18:04:29,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:04:29,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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 496 [2021-11-13 18:04:29,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:04:29,054 INFO L225 Difference]: With dead ends: 5524 [2021-11-13 18:04:29,054 INFO L226 Difference]: Without dead ends: 3386 [2021-11-13 18:04:29,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:04:29,059 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 74 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 481.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.86ms SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 587.60ms IncrementalHoareTripleChecker+Time [2021-11-13 18:04:29,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 50 Invalid, 478 Unknown, 0 Unchecked, 3.86ms Time], IncrementalHoareTripleChecker [55 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 587.60ms Time] [2021-11-13 18:04:29,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2021-11-13 18:04:29,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2021-11-13 18:04:29,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.0800590841949778) internal successors, (3656), 3385 states have internal predecessors, (3656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:29,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3656 transitions. [2021-11-13 18:04:29,156 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3656 transitions. Word has length 496 [2021-11-13 18:04:29,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:04:29,157 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 3656 transitions. [2021-11-13 18:04:29,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:29,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3656 transitions. [2021-11-13 18:04:29,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2021-11-13 18:04:29,164 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:04:29,164 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:04:29,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 18:04:29,165 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:04:29,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:29,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1528926837, now seen corresponding path program 1 times [2021-11-13 18:04:29,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:29,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238468712] [2021-11-13 18:04:29,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:29,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:29,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1118 backedges. 735 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2021-11-13 18:04:29,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:04:29,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238468712] [2021-11-13 18:04:29,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238468712] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:04:29,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:04:29,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:04:29,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105369113] [2021-11-13 18:04:29,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:04:29,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:04:29,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:04:29,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:04:29,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:04:29,481 INFO L87 Difference]: Start difference. First operand 3386 states and 3656 transitions. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:30,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:04:30,144 INFO L93 Difference]: Finished difference Result 6770 states and 7325 transitions. [2021-11-13 18:04:30,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:04:30,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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 532 [2021-11-13 18:04:30,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:04:30,165 INFO L225 Difference]: With dead ends: 6770 [2021-11-13 18:04:30,165 INFO L226 Difference]: Without dead ends: 3564 [2021-11-13 18:04:30,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:04:30,170 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 102 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 499.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.23ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 605.94ms IncrementalHoareTripleChecker+Time [2021-11-13 18:04:30,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 243 Invalid, 437 Unknown, 0 Unchecked, 5.23ms Time], IncrementalHoareTripleChecker [20 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 605.94ms Time] [2021-11-13 18:04:30,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-11-13 18:04:30,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2021-11-13 18:04:30,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.076707202993452) internal successors, (3453), 3207 states have internal predecessors, (3453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:30,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3453 transitions. [2021-11-13 18:04:30,259 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3453 transitions. Word has length 532 [2021-11-13 18:04:30,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:04:30,260 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3453 transitions. [2021-11-13 18:04:30,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:30,261 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3453 transitions. [2021-11-13 18:04:30,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2021-11-13 18:04:30,267 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:04:30,268 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:04:30,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 18:04:30,268 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:04:30,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:30,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1267287561, now seen corresponding path program 1 times [2021-11-13 18:04:30,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:30,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881125263] [2021-11-13 18:04:30,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:30,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:30,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1366 backedges. 942 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-11-13 18:04:30,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:04:30,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881125263] [2021-11-13 18:04:30,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881125263] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:04:30,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299100540] [2021-11-13 18:04:30,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:30,581 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:04:30,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:04:30,583 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:04:30,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 18:04:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:30,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:04:30,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:04:32,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1366 backedges. 299 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2021-11-13 18:04:32,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:04:32,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299100540] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:04:32,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:04:32,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-13 18:04:32,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644262166] [2021-11-13 18:04:32,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:04:32,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:04:32,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:04:32,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:04:32,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:04:32,050 INFO L87 Difference]: Start difference. First operand 3208 states and 3453 transitions. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:32,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:04:32,560 INFO L93 Difference]: Finished difference Result 6770 states and 7299 transitions. [2021-11-13 18:04:32,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:04:32,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 651 [2021-11-13 18:04:32,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:04:32,577 INFO L225 Difference]: With dead ends: 6770 [2021-11-13 18:04:32,577 INFO L226 Difference]: Without dead ends: 3030 [2021-11-13 18:04:32,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 651 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:04:32,582 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 119 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 365.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.95ms SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 465.94ms IncrementalHoareTripleChecker+Time [2021-11-13 18:04:32,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 241 Invalid, 434 Unknown, 0 Unchecked, 3.95ms Time], IncrementalHoareTripleChecker [35 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 465.94ms Time] [2021-11-13 18:04:32,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-11-13 18:04:32,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2674. [2021-11-13 18:04:32,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.0695847362514028) internal successors, (2859), 2673 states have internal predecessors, (2859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:32,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2859 transitions. [2021-11-13 18:04:32,660 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2859 transitions. Word has length 651 [2021-11-13 18:04:32,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:04:32,692 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 2859 transitions. [2021-11-13 18:04:32,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:32,692 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2859 transitions. [2021-11-13 18:04:32,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 814 [2021-11-13 18:04:32,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:04:32,704 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:04:32,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-13 18:04:32,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:04:32,931 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:04:32,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:04:32,932 INFO L85 PathProgramCache]: Analyzing trace with hash -78197845, now seen corresponding path program 1 times [2021-11-13 18:04:32,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:04:32,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812256267] [2021-11-13 18:04:32,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:32,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:04:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:33,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 1429 proven. 155 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2021-11-13 18:04:33,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:04:33,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812256267] [2021-11-13 18:04:33,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812256267] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:04:33,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704250311] [2021-11-13 18:04:33,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:04:33,382 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:04:33,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:04:33,383 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:04:33,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-13 18:04:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:04:33,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:04:33,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:04:35,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 1599 trivial. 0 not checked. [2021-11-13 18:04:35,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:04:35,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704250311] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:04:35,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:04:35,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-13 18:04:35,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66025714] [2021-11-13 18:04:35,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:04:35,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:04:35,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:04:35,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:04:35,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:04:35,112 INFO L87 Difference]: Start difference. First operand 2674 states and 2859 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:35,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:04:35,695 INFO L93 Difference]: Finished difference Result 3030 states and 3231 transitions. [2021-11-13 18:04:35,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:04:35,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 813 [2021-11-13 18:04:35,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:04:35,698 INFO L225 Difference]: With dead ends: 3030 [2021-11-13 18:04:35,698 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 18:04:35,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 816 GetRequests, 813 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:04:35,702 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 140 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 437.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.78ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 554.47ms IncrementalHoareTripleChecker+Time [2021-11-13 18:04:35,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 13 Invalid, 445 Unknown, 0 Unchecked, 3.78ms Time], IncrementalHoareTripleChecker [25 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 554.47ms Time] [2021-11-13 18:04:35,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 18:04:35,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 18:04:35,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:35,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 18:04:35,705 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 813 [2021-11-13 18:04:35,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:04:35,705 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:04:35,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:04:35,706 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 18:04:35,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 18:04:35,709 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 18:04:35,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-13 18:04:35,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:04:35,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 18:04:36,777 INFO L858 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-11-13 18:04:36,777 INFO L858 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-11-13 18:04:36,777 INFO L858 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-11-13 18:04:36,777 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-11-13 18:04:36,777 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-11-13 18:04:36,777 INFO L858 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,777 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,777 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,777 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-11-13 18:04:36,777 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-11-13 18:04:36,777 INFO L858 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-11-13 18:04:36,778 INFO L858 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-11-13 18:04:36,778 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-11-13 18:04:36,778 INFO L858 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-11-13 18:04:36,778 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-11-13 18:04:36,778 INFO L858 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-11-13 18:04:36,778 INFO L858 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,778 INFO L858 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,778 INFO L858 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,778 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-11-13 18:04:36,778 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-13 18:04:36,778 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-11-13 18:04:36,778 INFO L858 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-11-13 18:04:36,778 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-11-13 18:04:36,779 INFO L858 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-11-13 18:04:36,779 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-11-13 18:04:36,779 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-11-13 18:04:36,779 INFO L858 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-11-13 18:04:36,779 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,779 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,779 INFO L858 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,780 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-11-13 18:04:36,780 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-11-13 18:04:36,780 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-11-13 18:04:36,780 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-11-13 18:04:36,780 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-11-13 18:04:36,780 INFO L858 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-11-13 18:04:36,780 INFO L858 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-11-13 18:04:36,781 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,781 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,781 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,781 INFO L858 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-11-13 18:04:36,781 INFO L858 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-11-13 18:04:36,781 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-11-13 18:04:36,781 INFO L858 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-11-13 18:04:36,782 INFO L858 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-11-13 18:04:36,782 INFO L858 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-11-13 18:04:36,782 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-11-13 18:04:36,782 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-11-13 18:04:36,782 INFO L858 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,782 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,782 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,783 INFO L858 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-11-13 18:04:36,783 INFO L858 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-11-13 18:04:36,783 INFO L858 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-11-13 18:04:36,783 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-11-13 18:04:36,783 INFO L858 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-11-13 18:04:36,783 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-11-13 18:04:36,783 INFO L858 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-11-13 18:04:36,784 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-11-13 18:04:36,784 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,784 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,784 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,784 INFO L858 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-11-13 18:04:36,784 INFO L858 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-11-13 18:04:36,784 INFO L858 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-11-13 18:04:36,785 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-11-13 18:04:36,785 INFO L858 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-11-13 18:04:36,785 INFO L858 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-11-13 18:04:36,785 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-11-13 18:04:36,785 INFO L858 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-11-13 18:04:36,785 INFO L858 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-11-13 18:04:36,786 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,787 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,787 INFO L858 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,787 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-11-13 18:04:36,787 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-11-13 18:04:36,787 INFO L858 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-11-13 18:04:36,787 INFO L858 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-11-13 18:04:36,787 INFO L858 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-11-13 18:04:36,788 INFO L858 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-11-13 18:04:36,788 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-11-13 18:04:36,788 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 18:04:36,788 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,789 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,789 INFO L858 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,789 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-11-13 18:04:36,789 INFO L858 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-11-13 18:04:36,789 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-11-13 18:04:36,789 INFO L858 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-11-13 18:04:36,789 INFO L858 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-11-13 18:04:36,790 INFO L858 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-11-13 18:04:36,790 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-11-13 18:04:36,790 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-11-13 18:04:36,790 INFO L858 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-11-13 18:04:36,790 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,790 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,790 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,791 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-11-13 18:04:36,791 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-11-13 18:04:36,791 INFO L858 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-11-13 18:04:36,791 INFO L858 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-11-13 18:04:36,791 INFO L858 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-11-13 18:04:36,791 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-11-13 18:04:36,791 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-11-13 18:04:36,792 INFO L858 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-11-13 18:04:36,792 INFO L858 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,792 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,792 INFO L858 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,792 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-11-13 18:04:36,792 INFO L858 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-11-13 18:04:36,792 INFO L858 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-11-13 18:04:36,793 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 18:04:36,793 INFO L858 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-11-13 18:04:36,793 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 200) no Hoare annotation was computed. [2021-11-13 18:04:36,793 INFO L858 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-11-13 18:04:36,793 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-11-13 18:04:36,794 INFO L858 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-11-13 18:04:36,794 INFO L858 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-11-13 18:04:36,794 INFO L858 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,794 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,794 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,794 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-11-13 18:04:36,795 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-11-13 18:04:36,795 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-11-13 18:04:36,795 INFO L858 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-11-13 18:04:36,795 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-11-13 18:04:36,795 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-11-13 18:04:36,795 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-11-13 18:04:36,795 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-11-13 18:04:36,796 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,796 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,796 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,796 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-11-13 18:04:36,796 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-11-13 18:04:36,796 INFO L858 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-11-13 18:04:36,796 INFO L858 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-11-13 18:04:36,797 INFO L858 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-11-13 18:04:36,797 INFO L858 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-11-13 18:04:36,797 INFO L858 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-11-13 18:04:36,797 INFO L858 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-11-13 18:04:36,798 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,798 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,799 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,799 INFO L858 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-11-13 18:04:36,799 INFO L858 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-11-13 18:04:36,799 INFO L858 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-11-13 18:04:36,799 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-11-13 18:04:36,799 INFO L858 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-11-13 18:04:36,799 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-11-13 18:04:36,800 INFO L858 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-11-13 18:04:36,800 INFO L858 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-11-13 18:04:36,800 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,800 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,800 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,800 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-11-13 18:04:36,801 INFO L858 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-11-13 18:04:36,801 INFO L858 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-11-13 18:04:36,801 INFO L858 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-11-13 18:04:36,801 INFO L858 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-11-13 18:04:36,801 INFO L858 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-11-13 18:04:36,801 INFO L858 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-11-13 18:04:36,801 INFO L858 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-11-13 18:04:36,802 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,802 INFO L858 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,802 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,802 INFO L858 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-11-13 18:04:36,802 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-13 18:04:36,802 INFO L858 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-11-13 18:04:36,802 INFO L858 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-11-13 18:04:36,803 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-11-13 18:04:36,803 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-11-13 18:04:36,803 INFO L858 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-11-13 18:04:36,803 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-11-13 18:04:36,803 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,803 INFO L858 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,803 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-11-13 18:04:36,804 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-11-13 18:04:36,804 INFO L858 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-11-13 18:04:36,804 INFO L858 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-11-13 18:04:36,804 INFO L858 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-11-13 18:04:36,804 INFO L858 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-11-13 18:04:36,804 INFO L858 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-11-13 18:04:36,804 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-11-13 18:04:36,804 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,805 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,805 INFO L858 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-11-13 18:04:36,805 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 18:04:36,805 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-11-13 18:04:36,805 INFO L858 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-11-13 18:04:36,805 INFO L858 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-11-13 18:04:36,806 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-11-13 18:04:36,806 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-11-13 18:04:36,806 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,806 INFO L858 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,807 INFO L854 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse1 (= ~a24~0 1)) (.cse3 (<= ~a15~0 8)) (.cse2 (<= 8 ~a15~0))) (let ((.cse0 (or (and .cse1 (not (= ~a21~0 6))) (and .cse3 .cse2))) (.cse4 (<= 7 ~a15~0))) (or (and (<= ~a12~0 11) .cse0) (and .cse1 .cse2) (and (<= ~a21~0 9) .cse3 (< 0 (+ ~a12~0 43))) (and .cse4 .cse1 (<= (+ 49 ~a12~0) 0)) (<= ~a15~0 5) (and .cse0 .cse4)))) [2021-11-13 18:04:36,807 INFO L858 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-11-13 18:04:36,807 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-11-13 18:04:36,807 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-11-13 18:04:36,808 INFO L858 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-11-13 18:04:36,808 INFO L858 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-11-13 18:04:36,808 INFO L858 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-11-13 18:04:36,808 INFO L858 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-11-13 18:04:36,808 INFO L858 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-11-13 18:04:36,808 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,808 INFO L858 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,809 INFO L861 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-11-13 18:04:36,809 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-11-13 18:04:36,809 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-11-13 18:04:36,809 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-11-13 18:04:36,809 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-11-13 18:04:36,809 INFO L858 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-11-13 18:04:36,809 INFO L858 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-11-13 18:04:36,809 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-11-13 18:04:36,809 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,809 INFO L858 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,809 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 18:04:36,810 INFO L858 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-11-13 18:04:36,810 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-11-13 18:04:36,810 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-11-13 18:04:36,810 INFO L858 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-11-13 18:04:36,810 INFO L858 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-11-13 18:04:36,810 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-11-13 18:04:36,810 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,810 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,810 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-11-13 18:04:36,810 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,811 INFO L858 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-11-13 18:04:36,812 INFO L854 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse1 (= ~a24~0 1)) (.cse3 (<= ~a15~0 8)) (.cse2 (<= 8 ~a15~0))) (let ((.cse0 (or (and .cse1 (not (= ~a21~0 6))) (and .cse3 .cse2))) (.cse4 (<= 7 ~a15~0))) (or (and (<= ~a12~0 11) .cse0) (and .cse1 .cse2) (and (<= ~a21~0 9) .cse3 (< 0 (+ ~a12~0 43))) (and .cse4 .cse1 (<= (+ 49 ~a12~0) 0)) (<= ~a15~0 5) (and .cse0 .cse4)))) [2021-11-13 18:04:36,812 INFO L858 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-11-13 18:04:36,813 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-11-13 18:04:36,813 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-11-13 18:04:36,813 INFO L858 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-11-13 18:04:36,813 INFO L858 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-11-13 18:04:36,813 INFO L858 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-11-13 18:04:36,813 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-11-13 18:04:36,814 INFO L858 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-11-13 18:04:36,814 INFO L858 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-11-13 18:04:36,814 INFO L858 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,814 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,816 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-11-13 18:04:36,816 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-11-13 18:04:36,817 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-11-13 18:04:36,817 INFO L858 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-11-13 18:04:36,817 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-11-13 18:04:36,824 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:04:36,829 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:04:36,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:04:36 BoogieIcfgContainer [2021-11-13 18:04:36,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 18:04:36,856 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:04:36,856 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:04:36,856 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:04:36,856 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:04:14" (3/4) ... [2021-11-13 18:04:36,860 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 18:04:36,904 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-13 18:04:36,906 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 18:04:36,908 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 18:04:36,910 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 18:04:37,084 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 18:04:37,084 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:04:37,085 INFO L158 Benchmark]: Toolchain (without parser) took 25577.52ms. Allocated memory was 109.1MB in the beginning and 346.0MB in the end (delta: 237.0MB). Free memory was 75.2MB in the beginning and 199.3MB in the end (delta: -124.1MB). Peak memory consumption was 114.1MB. Max. memory is 16.1GB. [2021-11-13 18:04:37,085 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 109.1MB. Free memory was 64.3MB in the beginning and 64.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:04:37,086 INFO L158 Benchmark]: CACSL2BoogieTranslator took 961.23ms. Allocated memory was 109.1MB in the beginning and 148.9MB in the end (delta: 39.8MB). Free memory was 74.8MB in the beginning and 102.3MB in the end (delta: -27.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-13 18:04:37,086 INFO L158 Benchmark]: Boogie Procedure Inliner took 170.77ms. Allocated memory is still 148.9MB. Free memory was 102.3MB in the beginning and 92.6MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:04:37,087 INFO L158 Benchmark]: Boogie Preprocessor took 130.39ms. Allocated memory is still 148.9MB. Free memory was 92.6MB in the beginning and 87.1MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 18:04:37,087 INFO L158 Benchmark]: RCFGBuilder took 1751.70ms. Allocated memory is still 148.9MB. Free memory was 87.1MB in the beginning and 76.3MB in the end (delta: 10.8MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. [2021-11-13 18:04:37,088 INFO L158 Benchmark]: TraceAbstraction took 22322.24ms. Allocated memory was 148.9MB in the beginning and 346.0MB in the end (delta: 197.1MB). Free memory was 76.3MB in the beginning and 217.3MB in the end (delta: -141.0MB). Peak memory consumption was 134.5MB. Max. memory is 16.1GB. [2021-11-13 18:04:37,088 INFO L158 Benchmark]: Witness Printer took 228.58ms. Allocated memory is still 346.0MB. Free memory was 217.3MB in the beginning and 199.3MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-13 18:04:37,090 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 109.1MB. Free memory was 64.3MB in the beginning and 64.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 961.23ms. Allocated memory was 109.1MB in the beginning and 148.9MB in the end (delta: 39.8MB). Free memory was 74.8MB in the beginning and 102.3MB in the end (delta: -27.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 170.77ms. Allocated memory is still 148.9MB. Free memory was 102.3MB in the beginning and 92.6MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 130.39ms. Allocated memory is still 148.9MB. Free memory was 92.6MB in the beginning and 87.1MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1751.70ms. Allocated memory is still 148.9MB. Free memory was 87.1MB in the beginning and 76.3MB in the end (delta: 10.8MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. * TraceAbstraction took 22322.24ms. Allocated memory was 148.9MB in the beginning and 346.0MB in the end (delta: 197.1MB). Free memory was 76.3MB in the beginning and 217.3MB in the end (delta: -141.0MB). Peak memory consumption was 134.5MB. Max. memory is 16.1GB. * Witness Printer took 228.58ms. Allocated memory is still 346.0MB. Free memory was 217.3MB in the beginning and 199.3MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. 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: 200]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.2s, OverallIterations: 12, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1588 SdHoareTripleChecker+Valid, 9145.90ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1588 mSDsluCounter, 1462 SdHoareTripleChecker+Invalid, 7434.08ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 960 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6490 IncrementalHoareTripleChecker+Invalid, 7450 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 960 mSolverCounterUnsat, 1388 mSDtfsCounter, 6490 mSolverCounterSat, 78.25ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2175 GetRequests, 2150 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3386occurred in iteration=9, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 2316 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 52 NumberOfFragments, 151 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1156 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1444 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 7002 NumberOfCodeBlocks, 7002 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 6986 ConstructedInterpolants, 0 QuantifiedInterpolants, 18196 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2770 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 11698/12199 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: 30]: Loop Invariant Derived loop invariant: (((((a12 <= 11 && ((a24 == 1 && !(a21 == 6)) || (a15 <= 8 && 8 <= a15))) || (a24 == 1 && 8 <= a15)) || ((a21 <= 9 && a15 <= 8) && 0 < a12 + 43)) || ((7 <= a15 && a24 == 1) && 49 + a12 <= 0)) || a15 <= 5) || (((a24 == 1 && !(a21 == 6)) || (a15 <= 8 && 8 <= a15)) && 7 <= a15) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((a12 <= 11 && ((a24 == 1 && !(a21 == 6)) || (a15 <= 8 && 8 <= a15))) || (a24 == 1 && 8 <= a15)) || ((a21 <= 9 && a15 <= 8) && 0 < a12 + 43)) || ((7 <= a15 && a24 == 1) && 49 + a12 <= 0)) || a15 <= 5) || (((a24 == 1 && !(a21 == 6)) || (a15 <= 8 && 8 <= a15)) && 7 <= a15) RESULT: Ultimate proved your program to be correct! [2021-11-13 18:04:37,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83fd25c-fd16-43d3-83d0-7ae139a3a1ed/bin/uautomizer-YU5uOKAj3y/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