./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label43.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1911e53e-65e2-4fd7-810b-b7ae99bbad32/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1911e53e-65e2-4fd7-810b-b7ae99bbad32/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1911e53e-65e2-4fd7-810b-b7ae99bbad32/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1911e53e-65e2-4fd7-810b-b7ae99bbad32/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label43.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1911e53e-65e2-4fd7-810b-b7ae99bbad32/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1911e53e-65e2-4fd7-810b-b7ae99bbad32/bin/uautomizer --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 454dd493ee9dcdf0cdb95ddac4747f0f0acba84f .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:00:35,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:00:35,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:00:35,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:00:35,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:00:36,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:00:36,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:00:36,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:00:36,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:00:36,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:00:36,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:00:36,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:00:36,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:00:36,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:00:36,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:00:36,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:00:36,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:00:36,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:00:36,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:00:36,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:00:36,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:00:36,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:00:36,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:00:36,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:00:36,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:00:36,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:00:36,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:00:36,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:00:36,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:00:36,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:00:36,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:00:36,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:00:36,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:00:36,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:00:36,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:00:36,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:00:36,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:00:36,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:00:36,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:00:36,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:00:36,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:00:36,065 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1911e53e-65e2-4fd7-810b-b7ae99bbad32/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:00:36,108 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:00:36,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:00:36,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:00:36,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:00:36,115 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:00:36,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:00:36,116 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:00:36,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:00:36,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:00:36,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:00:36,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:00:36,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:00:36,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:00:36,119 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:00:36,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:00:36,119 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:00:36,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:00:36,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:00:36,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:00:36,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:00:36,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:00:36,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:00:36,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:00:36,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:00:36,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:00:36,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:00:36,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:00:36,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:00:36,123 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:00:36,123 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-vcloud-master/worker/run_dir_1911e53e-65e2-4fd7-810b-b7ae99bbad32/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1911e53e-65e2-4fd7-810b-b7ae99bbad32/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 454dd493ee9dcdf0cdb95ddac4747f0f0acba84f [2020-11-30 00:00:36,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:00:36,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:00:36,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:00:36,473 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:00:36,477 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:00:36,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1911e53e-65e2-4fd7-810b-b7ae99bbad32/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label43.c [2020-11-30 00:00:36,572 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1911e53e-65e2-4fd7-810b-b7ae99bbad32/bin/uautomizer/data/c0527f9ef/22358b18d7cc4c219cac05066c0cdc1b/FLAGc15b8d07a [2020-11-30 00:00:37,252 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:00:37,253 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1911e53e-65e2-4fd7-810b-b7ae99bbad32/sv-benchmarks/c/eca-rers2012/Problem01_label43.c [2020-11-30 00:00:37,267 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1911e53e-65e2-4fd7-810b-b7ae99bbad32/bin/uautomizer/data/c0527f9ef/22358b18d7cc4c219cac05066c0cdc1b/FLAGc15b8d07a [2020-11-30 00:00:37,472 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1911e53e-65e2-4fd7-810b-b7ae99bbad32/bin/uautomizer/data/c0527f9ef/22358b18d7cc4c219cac05066c0cdc1b [2020-11-30 00:00:37,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:00:37,476 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:00:37,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:00:37,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:00:37,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:00:37,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:00:37" (1/1) ... [2020-11-30 00:00:37,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67b93476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:37, skipping insertion in model container [2020-11-30 00:00:37,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:00:37" (1/1) ... [2020-11-30 00:00:37,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:00:37,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:00:38,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:00:38,118 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:00:38,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:00:38,260 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:00:38,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:38 WrapperNode [2020-11-30 00:00:38,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:00:38,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:00:38,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:00:38,265 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:00:38,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:38" (1/1) ... [2020-11-30 00:00:38,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:38" (1/1) ... [2020-11-30 00:00:38,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:00:38,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:00:38,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:00:38,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:00:38,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:38" (1/1) ... [2020-11-30 00:00:38,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:38" (1/1) ... [2020-11-30 00:00:38,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:38" (1/1) ... [2020-11-30 00:00:38,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:38" (1/1) ... [2020-11-30 00:00:38,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:38" (1/1) ... [2020-11-30 00:00:38,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:38" (1/1) ... [2020-11-30 00:00:38,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:38" (1/1) ... [2020-11-30 00:00:38,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:00:38,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:00:38,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:00:38,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:00:38,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1911e53e-65e2-4fd7-810b-b7ae99bbad32/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:00:38,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:00:38,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:00:38,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:00:38,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:00:40,254 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:00:40,255 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 00:00:40,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:00:40 BoogieIcfgContainer [2020-11-30 00:00:40,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:00:40,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:00:40,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:00:40,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:00:40,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:00:37" (1/3) ... [2020-11-30 00:00:40,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14fb244f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:00:40, skipping insertion in model container [2020-11-30 00:00:40,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:00:38" (2/3) ... [2020-11-30 00:00:40,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14fb244f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:00:40, skipping insertion in model container [2020-11-30 00:00:40,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:00:40" (3/3) ... [2020-11-30 00:00:40,271 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label43.c [2020-11-30 00:00:40,284 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:00:40,289 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:00:40,303 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:00:40,330 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:00:40,330 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:00:40,331 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:00:40,331 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:00:40,331 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:00:40,331 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:00:40,331 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:00:40,332 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:00:40,354 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-11-30 00:00:40,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-11-30 00:00:40,369 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:00:40,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:40,371 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:00:40,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:40,377 INFO L82 PathProgramCache]: Analyzing trace with hash -46355601, now seen corresponding path program 1 times [2020-11-30 00:00:40,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:40,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998915628] [2020-11-30 00:00:40,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:40,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:00:40,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998915628] [2020-11-30 00:00:40,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:00:40,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:00:40,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254121968] [2020-11-30 00:00:40,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:00:40,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:00:40,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:00:40,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:00:40,914 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-11-30 00:00:42,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:00:42,051 INFO L93 Difference]: Finished difference Result 529 states and 916 transitions. [2020-11-30 00:00:42,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:00:42,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2020-11-30 00:00:42,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:00:42,085 INFO L225 Difference]: With dead ends: 529 [2020-11-30 00:00:42,085 INFO L226 Difference]: Without dead ends: 266 [2020-11-30 00:00:42,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:00:42,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-30 00:00:42,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-11-30 00:00:42,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-30 00:00:42,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 392 transitions. [2020-11-30 00:00:42,160 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 392 transitions. Word has length 128 [2020-11-30 00:00:42,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:00:42,161 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 392 transitions. [2020-11-30 00:00:42,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:00:42,161 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 392 transitions. [2020-11-30 00:00:42,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-11-30 00:00:42,165 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:00:42,165 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:42,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:00:42,166 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:00:42,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:42,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1296387639, now seen corresponding path program 1 times [2020-11-30 00:00:42,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:42,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623803958] [2020-11-30 00:00:42,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:42,295 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:00:42,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623803958] [2020-11-30 00:00:42,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:00:42,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:00:42,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974570085] [2020-11-30 00:00:42,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:00:42,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:00:42,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:00:42,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:00:42,301 INFO L87 Difference]: Start difference. First operand 266 states and 392 transitions. Second operand 3 states. [2020-11-30 00:00:43,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:00:43,170 INFO L93 Difference]: Finished difference Result 794 states and 1172 transitions. [2020-11-30 00:00:43,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:00:43,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-11-30 00:00:43,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:00:43,176 INFO L225 Difference]: With dead ends: 794 [2020-11-30 00:00:43,176 INFO L226 Difference]: Without dead ends: 530 [2020-11-30 00:00:43,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:00:43,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-11-30 00:00:43,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 528. [2020-11-30 00:00:43,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-11-30 00:00:43,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 745 transitions. [2020-11-30 00:00:43,254 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 745 transitions. Word has length 133 [2020-11-30 00:00:43,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:00:43,255 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 745 transitions. [2020-11-30 00:00:43,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:00:43,255 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 745 transitions. [2020-11-30 00:00:43,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-11-30 00:00:43,263 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:00:43,264 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:43,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:00:43,264 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:00:43,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:43,265 INFO L82 PathProgramCache]: Analyzing trace with hash -514695724, now seen corresponding path program 1 times [2020-11-30 00:00:43,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:43,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965002214] [2020-11-30 00:00:43,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:43,419 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:00:43,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965002214] [2020-11-30 00:00:43,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:00:43,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:00:43,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022899886] [2020-11-30 00:00:43,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:00:43,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:00:43,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:00:43,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:00:43,442 INFO L87 Difference]: Start difference. First operand 528 states and 745 transitions. Second operand 4 states. [2020-11-30 00:00:44,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:00:44,934 INFO L93 Difference]: Finished difference Result 1840 states and 2594 transitions. [2020-11-30 00:00:44,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:00:44,935 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 140 [2020-11-30 00:00:44,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:00:44,944 INFO L225 Difference]: With dead ends: 1840 [2020-11-30 00:00:44,945 INFO L226 Difference]: Without dead ends: 1314 [2020-11-30 00:00:44,946 INFO L677 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 [2020-11-30 00:00:44,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-11-30 00:00:44,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314. [2020-11-30 00:00:44,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-11-30 00:00:45,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1707 transitions. [2020-11-30 00:00:45,019 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1707 transitions. Word has length 140 [2020-11-30 00:00:45,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:00:45,022 INFO L481 AbstractCegarLoop]: Abstraction has 1314 states and 1707 transitions. [2020-11-30 00:00:45,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:00:45,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1707 transitions. [2020-11-30 00:00:45,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-11-30 00:00:45,045 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:00:45,045 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:45,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:00:45,047 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:00:45,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:45,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1535506288, now seen corresponding path program 1 times [2020-11-30 00:00:45,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:45,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32800228] [2020-11-30 00:00:45,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:45,213 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:00:45,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32800228] [2020-11-30 00:00:45,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:00:45,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:00:45,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038086509] [2020-11-30 00:00:45,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:00:45,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:00:45,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:00:45,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:00:45,217 INFO L87 Difference]: Start difference. First operand 1314 states and 1707 transitions. Second operand 3 states. [2020-11-30 00:00:46,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:00:46,105 INFO L93 Difference]: Finished difference Result 3281 states and 4194 transitions. [2020-11-30 00:00:46,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:00:46,105 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2020-11-30 00:00:46,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:00:46,119 INFO L225 Difference]: With dead ends: 3281 [2020-11-30 00:00:46,120 INFO L226 Difference]: Without dead ends: 1969 [2020-11-30 00:00:46,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:00:46,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2020-11-30 00:00:46,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1707. [2020-11-30 00:00:46,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2020-11-30 00:00:46,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2142 transitions. [2020-11-30 00:00:46,201 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2142 transitions. Word has length 143 [2020-11-30 00:00:46,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:00:46,201 INFO L481 AbstractCegarLoop]: Abstraction has 1707 states and 2142 transitions. [2020-11-30 00:00:46,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:00:46,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2142 transitions. [2020-11-30 00:00:46,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-11-30 00:00:46,208 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:00:46,209 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:46,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:00:46,209 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:00:46,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:46,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1098828258, now seen corresponding path program 1 times [2020-11-30 00:00:46,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:46,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103685751] [2020-11-30 00:00:46,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:46,336 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-30 00:00:46,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103685751] [2020-11-30 00:00:46,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:00:46,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:00:46,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212903170] [2020-11-30 00:00:46,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:00:46,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:00:46,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:00:46,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:00:46,341 INFO L87 Difference]: Start difference. First operand 1707 states and 2142 transitions. Second operand 3 states. [2020-11-30 00:00:47,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:00:47,295 INFO L93 Difference]: Finished difference Result 4067 states and 5161 transitions. [2020-11-30 00:00:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:00:47,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-11-30 00:00:47,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:00:47,312 INFO L225 Difference]: With dead ends: 4067 [2020-11-30 00:00:47,312 INFO L226 Difference]: Without dead ends: 2231 [2020-11-30 00:00:47,316 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:00:47,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2020-11-30 00:00:47,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1969. [2020-11-30 00:00:47,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2020-11-30 00:00:47,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2279 transitions. [2020-11-30 00:00:47,390 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2279 transitions. Word has length 144 [2020-11-30 00:00:47,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:00:47,390 INFO L481 AbstractCegarLoop]: Abstraction has 1969 states and 2279 transitions. [2020-11-30 00:00:47,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:00:47,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2279 transitions. [2020-11-30 00:00:47,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-30 00:00:47,398 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:00:47,398 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:47,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 00:00:47,399 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:00:47,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:47,400 INFO L82 PathProgramCache]: Analyzing trace with hash 936595672, now seen corresponding path program 1 times [2020-11-30 00:00:47,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:47,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693327942] [2020-11-30 00:00:47,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:47,598 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-30 00:00:47,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693327942] [2020-11-30 00:00:47,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:00:47,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:00:47,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574187923] [2020-11-30 00:00:47,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:00:47,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:00:47,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:00:47,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:00:47,607 INFO L87 Difference]: Start difference. First operand 1969 states and 2279 transitions. Second operand 4 states. [2020-11-30 00:00:48,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:00:48,782 INFO L93 Difference]: Finished difference Result 4067 states and 4702 transitions. [2020-11-30 00:00:48,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:00:48,783 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-11-30 00:00:48,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:00:48,797 INFO L225 Difference]: With dead ends: 4067 [2020-11-30 00:00:48,797 INFO L226 Difference]: Without dead ends: 2100 [2020-11-30 00:00:48,800 INFO L677 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 [2020-11-30 00:00:48,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2020-11-30 00:00:48,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2100. [2020-11-30 00:00:48,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2100 states. [2020-11-30 00:00:48,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2355 transitions. [2020-11-30 00:00:48,867 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2355 transitions. Word has length 148 [2020-11-30 00:00:48,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:00:48,872 INFO L481 AbstractCegarLoop]: Abstraction has 2100 states and 2355 transitions. [2020-11-30 00:00:48,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:00:48,873 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2355 transitions. [2020-11-30 00:00:48,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-11-30 00:00:48,880 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:00:48,880 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:48,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 00:00:48,881 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:00:48,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:48,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1348051138, now seen corresponding path program 1 times [2020-11-30 00:00:48,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:48,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177046165] [2020-11-30 00:00:48,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:49,123 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-11-30 00:00:49,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177046165] [2020-11-30 00:00:49,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398806223] [2020-11-30 00:00:49,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1911e53e-65e2-4fd7-810b-b7ae99bbad32/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:00:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:49,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:00:49,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:00:49,658 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-30 00:00:49,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:00:49,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-30 00:00:49,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751342334] [2020-11-30 00:00:49,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:00:49,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:00:49,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:00:49,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:00:49,662 INFO L87 Difference]: Start difference. First operand 2100 states and 2355 transitions. Second operand 3 states. [2020-11-30 00:00:50,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:00:50,553 INFO L93 Difference]: Finished difference Result 4198 states and 4708 transitions. [2020-11-30 00:00:50,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:00:50,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-11-30 00:00:50,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:00:50,573 INFO L225 Difference]: With dead ends: 4198 [2020-11-30 00:00:50,573 INFO L226 Difference]: Without dead ends: 2100 [2020-11-30 00:00:50,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:00:50,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2020-11-30 00:00:50,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1838. [2020-11-30 00:00:50,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2020-11-30 00:00:50,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 1994 transitions. [2020-11-30 00:00:50,666 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 1994 transitions. Word has length 177 [2020-11-30 00:00:50,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:00:50,668 INFO L481 AbstractCegarLoop]: Abstraction has 1838 states and 1994 transitions. [2020-11-30 00:00:50,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:00:50,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 1994 transitions. [2020-11-30 00:00:50,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-11-30 00:00:50,676 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:00:50,676 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:50,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-11-30 00:00:50,903 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:00:50,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:50,904 INFO L82 PathProgramCache]: Analyzing trace with hash 2031418937, now seen corresponding path program 1 times [2020-11-30 00:00:50,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:50,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201453305] [2020-11-30 00:00:50,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:51,065 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-11-30 00:00:51,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201453305] [2020-11-30 00:00:51,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497586425] [2020-11-30 00:00:51,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1911e53e-65e2-4fd7-810b-b7ae99bbad32/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:00:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:51,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:00:51,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:00:51,347 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-30 00:00:51,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:00:51,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-30 00:00:51,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846027415] [2020-11-30 00:00:51,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:00:51,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:00:51,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:00:51,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:00:51,351 INFO L87 Difference]: Start difference. First operand 1838 states and 1994 transitions. Second operand 3 states. [2020-11-30 00:00:52,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:00:52,363 INFO L93 Difference]: Finished difference Result 4329 states and 4703 transitions. [2020-11-30 00:00:52,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:00:52,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2020-11-30 00:00:52,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:00:52,382 INFO L225 Difference]: With dead ends: 4329 [2020-11-30 00:00:52,382 INFO L226 Difference]: Without dead ends: 2493 [2020-11-30 00:00:52,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:00:52,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2020-11-30 00:00:52,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2100. [2020-11-30 00:00:52,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2100 states. [2020-11-30 00:00:52,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2277 transitions. [2020-11-30 00:00:52,452 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2277 transitions. Word has length 194 [2020-11-30 00:00:52,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:00:52,453 INFO L481 AbstractCegarLoop]: Abstraction has 2100 states and 2277 transitions. [2020-11-30 00:00:52,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:00:52,453 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2277 transitions. [2020-11-30 00:00:52,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-11-30 00:00:52,462 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:00:52,462 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:00:52,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:00:52,679 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:00:52,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:00:52,680 INFO L82 PathProgramCache]: Analyzing trace with hash 700222905, now seen corresponding path program 1 times [2020-11-30 00:00:52,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:00:52,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44934763] [2020-11-30 00:00:52,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:00:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:52,854 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 75 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-11-30 00:00:52,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44934763] [2020-11-30 00:00:52,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012557487] [2020-11-30 00:00:52,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1911e53e-65e2-4fd7-810b-b7ae99bbad32/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:00:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:00:53,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:00:53,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:00:53,154 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-11-30 00:00:53,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:00:53,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-30 00:00:53,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689205765] [2020-11-30 00:00:53,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:00:53,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:00:53,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:00:53,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:00:53,158 INFO L87 Difference]: Start difference. First operand 2100 states and 2277 transitions. Second operand 3 states. [2020-11-30 00:00:53,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:00:53,931 INFO L93 Difference]: Finished difference Result 4982 states and 5419 transitions. [2020-11-30 00:00:53,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:00:53,932 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2020-11-30 00:00:53,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:00:53,933 INFO L225 Difference]: With dead ends: 4982 [2020-11-30 00:00:53,934 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:00:53,940 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:00:53,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:00:53,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:00:53,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:00:53,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:00:53,942 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 198 [2020-11-30 00:00:53,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:00:53,942 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:00:53,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:00:53,943 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:00:53,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:00:54,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:00:54,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:00:54,444 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2020-11-30 00:00:54,547 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2020-11-30 00:00:54,551 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-11-30 00:00:54,551 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-11-30 00:00:54,551 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-11-30 00:00:54,551 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-11-30 00:00:54,551 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-11-30 00:00:54,551 INFO L274 CegarLoopResult]: For program point L102(lines 102 400) no Hoare annotation was computed. [2020-11-30 00:00:54,551 INFO L274 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2020-11-30 00:00:54,552 INFO L274 CegarLoopResult]: For program point L334(lines 334 400) no Hoare annotation was computed. [2020-11-30 00:00:54,552 INFO L274 CegarLoopResult]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,552 INFO L274 CegarLoopResult]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,552 INFO L274 CegarLoopResult]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,552 INFO L274 CegarLoopResult]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,552 INFO L274 CegarLoopResult]: For program point L401(lines 401 403) no Hoare annotation was computed. [2020-11-30 00:00:54,552 INFO L274 CegarLoopResult]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,553 INFO L274 CegarLoopResult]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,553 INFO L274 CegarLoopResult]: For program point L302(lines 302 400) no Hoare annotation was computed. [2020-11-30 00:00:54,553 INFO L274 CegarLoopResult]: For program point L170(lines 170 400) no Hoare annotation was computed. [2020-11-30 00:00:54,553 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-11-30 00:00:54,553 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-11-30 00:00:54,553 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-11-30 00:00:54,553 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-11-30 00:00:54,554 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-11-30 00:00:54,554 INFO L274 CegarLoopResult]: For program point L402(line 402) no Hoare annotation was computed. [2020-11-30 00:00:54,554 INFO L274 CegarLoopResult]: For program point L204(lines 204 400) no Hoare annotation was computed. [2020-11-30 00:00:54,554 INFO L274 CegarLoopResult]: For program point L72(lines 72 400) no Hoare annotation was computed. [2020-11-30 00:00:54,554 INFO L274 CegarLoopResult]: For program point L271(lines 271 400) no Hoare annotation was computed. [2020-11-30 00:00:54,554 INFO L274 CegarLoopResult]: For program point L139(lines 139 400) no Hoare annotation was computed. [2020-11-30 00:00:54,555 INFO L274 CegarLoopResult]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,555 INFO L274 CegarLoopResult]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,555 INFO L274 CegarLoopResult]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,555 INFO L274 CegarLoopResult]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,555 INFO L274 CegarLoopResult]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,555 INFO L274 CegarLoopResult]: For program point L371(lines 371 400) no Hoare annotation was computed. [2020-11-30 00:00:54,555 INFO L274 CegarLoopResult]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,556 INFO L274 CegarLoopResult]: For program point L107(lines 107 400) no Hoare annotation was computed. [2020-11-30 00:00:54,556 INFO L274 CegarLoopResult]: For program point L41(lines 41 400) no Hoare annotation was computed. [2020-11-30 00:00:54,556 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-11-30 00:00:54,556 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-11-30 00:00:54,556 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-11-30 00:00:54,556 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-11-30 00:00:54,556 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-11-30 00:00:54,557 INFO L274 CegarLoopResult]: For program point L405(line 405) no Hoare annotation was computed. [2020-11-30 00:00:54,557 INFO L274 CegarLoopResult]: For program point L339(lines 339 400) no Hoare annotation was computed. [2020-11-30 00:00:54,557 INFO L274 CegarLoopResult]: For program point L207(lines 207 400) no Hoare annotation was computed. [2020-11-30 00:00:54,557 INFO L274 CegarLoopResult]: For program point L75(lines 75 400) no Hoare annotation was computed. [2020-11-30 00:00:54,557 INFO L274 CegarLoopResult]: For program point L373(lines 373 400) no Hoare annotation was computed. [2020-11-30 00:00:54,557 INFO L274 CegarLoopResult]: For program point L241(lines 241 400) no Hoare annotation was computed. [2020-11-30 00:00:54,557 INFO L274 CegarLoopResult]: For program point L175(lines 175 400) no Hoare annotation was computed. [2020-11-30 00:00:54,558 INFO L274 CegarLoopResult]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,558 INFO L274 CegarLoopResult]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,558 INFO L274 CegarLoopResult]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,558 INFO L274 CegarLoopResult]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,558 INFO L274 CegarLoopResult]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,558 INFO L274 CegarLoopResult]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,558 INFO L274 CegarLoopResult]: For program point L275(lines 275 400) no Hoare annotation was computed. [2020-11-30 00:00:54,559 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-11-30 00:00:54,559 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-11-30 00:00:54,559 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-11-30 00:00:54,559 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-11-30 00:00:54,559 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-11-30 00:00:54,561 INFO L274 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2020-11-30 00:00:54,561 INFO L274 CegarLoopResult]: For program point L375(lines 375 400) no Hoare annotation was computed. [2020-11-30 00:00:54,561 INFO L274 CegarLoopResult]: For program point L309(lines 309 400) no Hoare annotation was computed. [2020-11-30 00:00:54,561 INFO L274 CegarLoopResult]: For program point L45(lines 45 400) no Hoare annotation was computed. [2020-11-30 00:00:54,562 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 00:00:54,562 INFO L274 CegarLoopResult]: For program point L343(lines 343 400) no Hoare annotation was computed. [2020-11-30 00:00:54,562 INFO L274 CegarLoopResult]: For program point L112(lines 112 400) no Hoare annotation was computed. [2020-11-30 00:00:54,562 INFO L274 CegarLoopResult]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,562 INFO L274 CegarLoopResult]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,563 INFO L274 CegarLoopResult]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,563 INFO L274 CegarLoopResult]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,563 INFO L274 CegarLoopResult]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,563 INFO L274 CegarLoopResult]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,564 INFO L274 CegarLoopResult]: For program point L278(lines 278 400) no Hoare annotation was computed. [2020-11-30 00:00:54,564 INFO L274 CegarLoopResult]: For program point L146(lines 146 400) no Hoare annotation was computed. [2020-11-30 00:00:54,564 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-11-30 00:00:54,564 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-11-30 00:00:54,564 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-11-30 00:00:54,565 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-11-30 00:00:54,565 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-11-30 00:00:54,565 INFO L274 CegarLoopResult]: For program point L411(line 411) no Hoare annotation was computed. [2020-11-30 00:00:54,565 INFO L274 CegarLoopResult]: For program point L213(lines 213 400) no Hoare annotation was computed. [2020-11-30 00:00:54,565 INFO L274 CegarLoopResult]: For program point L82(lines 82 400) no Hoare annotation was computed. [2020-11-30 00:00:54,566 INFO L274 CegarLoopResult]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,566 INFO L274 CegarLoopResult]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,566 INFO L274 CegarLoopResult]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,566 INFO L274 CegarLoopResult]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,566 INFO L274 CegarLoopResult]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,567 INFO L274 CegarLoopResult]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,567 INFO L274 CegarLoopResult]: For program point L347(lines 347 400) no Hoare annotation was computed. [2020-11-30 00:00:54,567 INFO L274 CegarLoopResult]: For program point L248(lines 248 400) no Hoare annotation was computed. [2020-11-30 00:00:54,567 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-11-30 00:00:54,567 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-11-30 00:00:54,568 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-11-30 00:00:54,568 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-11-30 00:00:54,568 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-11-30 00:00:54,568 INFO L274 CegarLoopResult]: For program point L414(line 414) no Hoare annotation was computed. [2020-11-30 00:00:54,568 INFO L274 CegarLoopResult]: For program point L183(lines 183 400) no Hoare annotation was computed. [2020-11-30 00:00:54,569 INFO L274 CegarLoopResult]: For program point L150(lines 150 400) no Hoare annotation was computed. [2020-11-30 00:00:54,569 INFO L274 CegarLoopResult]: For program point L382(lines 382 400) no Hoare annotation was computed. [2020-11-30 00:00:54,569 INFO L274 CegarLoopResult]: For program point L316(lines 316 400) no Hoare annotation was computed. [2020-11-30 00:00:54,569 INFO L274 CegarLoopResult]: For program point L283(lines 283 400) no Hoare annotation was computed. [2020-11-30 00:00:54,569 INFO L274 CegarLoopResult]: For program point L118(lines 118 400) no Hoare annotation was computed. [2020-11-30 00:00:54,570 INFO L274 CegarLoopResult]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2020-11-30 00:00:54,570 INFO L274 CegarLoopResult]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,570 INFO L274 CegarLoopResult]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,570 INFO L274 CegarLoopResult]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,571 INFO L274 CegarLoopResult]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,571 INFO L274 CegarLoopResult]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,571 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:00:54,571 INFO L274 CegarLoopResult]: For program point L218(lines 218 400) no Hoare annotation was computed. [2020-11-30 00:00:54,571 INFO L274 CegarLoopResult]: For program point L53(lines 53 400) no Hoare annotation was computed. [2020-11-30 00:00:54,572 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-11-30 00:00:54,572 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-11-30 00:00:54,572 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-11-30 00:00:54,572 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-11-30 00:00:54,572 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-11-30 00:00:54,573 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-11-30 00:00:54,573 INFO L274 CegarLoopResult]: For program point L154(lines 154 400) no Hoare annotation was computed. [2020-11-30 00:00:54,573 INFO L270 CegarLoopResult]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse1 (= ~a20~0 1)) (.cse0 (= ~a17~0 1))) (or (and (<= ~a16~0 4) .cse0) (and (<= ~a16~0 5) .cse1 .cse0) (and (= ~a21~0 1) .cse1 (= ~a7~0 0) .cse0) (<= ~a17~0 0) (and (not (= ~a7~0 1)) (<= 15 ~a8~0) .cse0))) [2020-11-30 00:00:54,574 INFO L274 CegarLoopResult]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,574 INFO L274 CegarLoopResult]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,574 INFO L274 CegarLoopResult]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,574 INFO L274 CegarLoopResult]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,575 INFO L274 CegarLoopResult]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,575 INFO L274 CegarLoopResult]: For program point L188(lines 188 400) no Hoare annotation was computed. [2020-11-30 00:00:54,575 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-11-30 00:00:54,575 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-11-30 00:00:54,575 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-11-30 00:00:54,576 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-11-30 00:00:54,576 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-11-30 00:00:54,576 INFO L274 CegarLoopResult]: For program point L387(lines 387 400) no Hoare annotation was computed. [2020-11-30 00:00:54,576 INFO L274 CegarLoopResult]: For program point L288(lines 288 400) no Hoare annotation was computed. [2020-11-30 00:00:54,576 INFO L274 CegarLoopResult]: For program point L255(lines 255 400) no Hoare annotation was computed. [2020-11-30 00:00:54,577 INFO L274 CegarLoopResult]: For program point L90(lines 90 400) no Hoare annotation was computed. [2020-11-30 00:00:54,577 INFO L274 CegarLoopResult]: For program point L355(lines 355 400) no Hoare annotation was computed. [2020-11-30 00:00:54,577 INFO L274 CegarLoopResult]: For program point L322(lines 322 400) no Hoare annotation was computed. [2020-11-30 00:00:54,577 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:00:54,577 INFO L274 CegarLoopResult]: For program point L124(lines 124 400) no Hoare annotation was computed. [2020-11-30 00:00:54,578 INFO L277 CegarLoopResult]: At program point L587(lines 587 604) the Hoare annotation is: true [2020-11-30 00:00:54,578 INFO L274 CegarLoopResult]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,578 INFO L274 CegarLoopResult]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,578 INFO L274 CegarLoopResult]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,578 INFO L274 CegarLoopResult]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,579 INFO L274 CegarLoopResult]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,579 INFO L274 CegarLoopResult]: For program point L224(lines 224 400) no Hoare annotation was computed. [2020-11-30 00:00:54,579 INFO L274 CegarLoopResult]: For program point L158(lines 158 400) no Hoare annotation was computed. [2020-11-30 00:00:54,579 INFO L274 CegarLoopResult]: For program point L59(lines 59 400) no Hoare annotation was computed. [2020-11-30 00:00:54,580 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-11-30 00:00:54,580 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-11-30 00:00:54,580 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-11-30 00:00:54,580 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-11-30 00:00:54,580 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-11-30 00:00:54,581 INFO L274 CegarLoopResult]: For program point L94(lines 94 400) no Hoare annotation was computed. [2020-11-30 00:00:54,581 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:00:54,581 INFO L274 CegarLoopResult]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,581 INFO L274 CegarLoopResult]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,581 INFO L274 CegarLoopResult]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,582 INFO L274 CegarLoopResult]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,582 INFO L274 CegarLoopResult]: For program point L392(lines 392 400) no Hoare annotation was computed. [2020-11-30 00:00:54,582 INFO L274 CegarLoopResult]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,582 INFO L274 CegarLoopResult]: For program point L326(lines 326 400) no Hoare annotation was computed. [2020-11-30 00:00:54,582 INFO L274 CegarLoopResult]: For program point L260(lines 260 400) no Hoare annotation was computed. [2020-11-30 00:00:54,583 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-11-30 00:00:54,583 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-11-30 00:00:54,583 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-11-30 00:00:54,583 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-11-30 00:00:54,583 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-11-30 00:00:54,584 INFO L274 CegarLoopResult]: For program point L228(lines 228 400) no Hoare annotation was computed. [2020-11-30 00:00:54,584 INFO L274 CegarLoopResult]: For program point L162(lines 162 400) no Hoare annotation was computed. [2020-11-30 00:00:54,584 INFO L274 CegarLoopResult]: For program point L129(lines 129 400) no Hoare annotation was computed. [2020-11-30 00:00:54,584 INFO L274 CegarLoopResult]: For program point L328(lines 328 400) no Hoare annotation was computed. [2020-11-30 00:00:54,585 INFO L274 CegarLoopResult]: For program point L196(lines 196 400) no Hoare annotation was computed. [2020-11-30 00:00:54,585 INFO L274 CegarLoopResult]: For program point L64(lines 64 400) no Hoare annotation was computed. [2020-11-30 00:00:54,585 INFO L274 CegarLoopResult]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,585 INFO L270 CegarLoopResult]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse1 (= ~a20~0 1)) (.cse0 (= ~a17~0 1))) (or (and (<= ~a16~0 4) .cse0) (and (<= ~a16~0 5) .cse1 .cse0) (and (= ~a21~0 1) .cse1 (= ~a7~0 0) .cse0) (<= ~a17~0 0) (and (not (= ~a7~0 1)) (<= 15 ~a8~0) .cse0))) [2020-11-30 00:00:54,586 INFO L274 CegarLoopResult]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,586 INFO L274 CegarLoopResult]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,586 INFO L274 CegarLoopResult]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,586 INFO L274 CegarLoopResult]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,586 INFO L274 CegarLoopResult]: For program point L296(lines 296 400) no Hoare annotation was computed. [2020-11-30 00:00:54,587 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:00:54,587 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 00:00:54,587 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-11-30 00:00:54,587 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-11-30 00:00:54,588 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-11-30 00:00:54,588 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-11-30 00:00:54,588 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-11-30 00:00:54,588 INFO L274 CegarLoopResult]: For program point L363(lines 363 400) no Hoare annotation was computed. [2020-11-30 00:00:54,588 INFO L274 CegarLoopResult]: For program point L199(lines 199 400) no Hoare annotation was computed. [2020-11-30 00:00:54,589 INFO L274 CegarLoopResult]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,589 INFO L274 CegarLoopResult]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,589 INFO L274 CegarLoopResult]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,589 INFO L274 CegarLoopResult]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,589 INFO L274 CegarLoopResult]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:00:54,590 INFO L274 CegarLoopResult]: For program point L365(lines 365 400) no Hoare annotation was computed. [2020-11-30 00:00:54,590 INFO L274 CegarLoopResult]: For program point L266(lines 266 400) no Hoare annotation was computed. [2020-11-30 00:00:54,590 INFO L274 CegarLoopResult]: For program point L233(lines 233 400) no Hoare annotation was computed. [2020-11-30 00:00:54,590 INFO L274 CegarLoopResult]: For program point L134(lines 134 400) no Hoare annotation was computed. [2020-11-30 00:00:54,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:00:54 BoogieIcfgContainer [2020-11-30 00:00:54,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:00:54,615 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:00:54,615 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:00:54,616 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:00:54,616 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:00:40" (3/4) ... [2020-11-30 00:00:54,620 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:00:54,645 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 00:00:54,647 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:00:54,649 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:00:54,650 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:00:54,827 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1911e53e-65e2-4fd7-810b-b7ae99bbad32/bin/uautomizer/witness.graphml [2020-11-30 00:00:54,828 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:00:54,829 INFO L168 Benchmark]: Toolchain (without parser) took 17352.47 ms. Allocated memory was 98.6 MB in the beginning and 325.1 MB in the end (delta: 226.5 MB). Free memory was 62.1 MB in the beginning and 227.8 MB in the end (delta: -165.7 MB). Peak memory consumption was 60.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:54,829 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory was 71.5 MB in the beginning and 71.5 MB in the end (delta: 30.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:00:54,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 785.46 ms. Allocated memory is still 98.6 MB. Free memory was 61.9 MB in the beginning and 57.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:54,831 INFO L168 Benchmark]: Boogie Procedure Inliner took 117.77 ms. Allocated memory is still 98.6 MB. Free memory was 57.9 MB in the beginning and 52.0 MB in the end (delta: 5.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:54,831 INFO L168 Benchmark]: Boogie Preprocessor took 122.47 ms. Allocated memory is still 98.6 MB. Free memory was 52.0 MB in the beginning and 47.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:54,832 INFO L168 Benchmark]: RCFGBuilder took 1753.32 ms. Allocated memory was 98.6 MB in the beginning and 134.2 MB in the end (delta: 35.7 MB). Free memory was 47.3 MB in the beginning and 75.7 MB in the end (delta: -28.4 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:54,832 INFO L168 Benchmark]: TraceAbstraction took 14352.54 ms. Allocated memory was 134.2 MB in the beginning and 325.1 MB in the end (delta: 190.8 MB). Free memory was 74.7 MB in the beginning and 242.4 MB in the end (delta: -167.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:54,833 INFO L168 Benchmark]: Witness Printer took 212.69 ms. Allocated memory is still 325.1 MB. Free memory was 242.4 MB in the beginning and 227.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:00:54,835 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory was 71.5 MB in the beginning and 71.5 MB in the end (delta: 30.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 785.46 ms. Allocated memory is still 98.6 MB. Free memory was 61.9 MB in the beginning and 57.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 117.77 ms. Allocated memory is still 98.6 MB. Free memory was 57.9 MB in the beginning and 52.0 MB in the end (delta: 5.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 122.47 ms. Allocated memory is still 98.6 MB. Free memory was 52.0 MB in the beginning and 47.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1753.32 ms. Allocated memory was 98.6 MB in the beginning and 134.2 MB in the end (delta: 35.7 MB). Free memory was 47.3 MB in the beginning and 75.7 MB in the end (delta: -28.4 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14352.54 ms. Allocated memory was 134.2 MB in the beginning and 325.1 MB in the end (delta: 190.8 MB). Free memory was 74.7 MB in the beginning and 242.4 MB in the end (delta: -167.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 212.69 ms. Allocated memory is still 325.1 MB. Free memory was 242.4 MB in the beginning and 227.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((a16 <= 4 && a17 == 1) || ((a16 <= 5 && a20 == 1) && a17 == 1)) || (((a21 == 1 && a20 == 1) && a7 == 0) && a17 == 1)) || a17 <= 0) || ((!(a7 == 1) && 15 <= a8) && a17 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: ((((a16 <= 4 && a17 == 1) || ((a16 <= 5 && a20 == 1) && a17 == 1)) || (((a21 == 1 && a20 == 1) && a7 == 0) && a17 == 1)) || a17 <= 0) || ((!(a7 == 1) && 15 <= a8) && a17 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.8s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 607 SDtfs, 1255 SDslu, 56 SDs, 0 SdLazy, 3383 SolverSat, 619 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 589 GetRequests, 572 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2100occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 1181 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 51 NumberOfFragments, 91 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1088 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 106 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1974 NumberOfCodeBlocks, 1974 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1962 ConstructedInterpolants, 0 QuantifiedInterpolants, 615967 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1155 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 653/662 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...