./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label24.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_4d7e6608-7dc6-4567-919b-940006f078ba/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4d7e6608-7dc6-4567-919b-940006f078ba/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4d7e6608-7dc6-4567-919b-940006f078ba/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4d7e6608-7dc6-4567-919b-940006f078ba/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label24.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4d7e6608-7dc6-4567-919b-940006f078ba/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4d7e6608-7dc6-4567-919b-940006f078ba/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 7f5e2cf5778d35276df37ef4653bf7d5a3d1b66b .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:46:32,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:46:32,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:46:32,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:46:32,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:46:32,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:46:32,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:46:32,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:46:32,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:46:32,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:46:32,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:46:32,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:46:32,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:46:32,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:46:32,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:46:32,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:46:32,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:46:32,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:46:32,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:46:32,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:46:32,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:46:32,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:46:32,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:46:32,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:46:32,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:46:32,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:46:32,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:46:32,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:46:32,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:46:32,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:46:32,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:46:32,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:46:32,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:46:32,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:46:32,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:46:32,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:46:32,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:46:32,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:46:32,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:46:32,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:46:32,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:46:32,412 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4d7e6608-7dc6-4567-919b-940006f078ba/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:46:32,449 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:46:32,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:46:32,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:46:32,452 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:46:32,452 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:46:32,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:46:32,453 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:46:32,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:46:32,454 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:46:32,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:46:32,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:46:32,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:46:32,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:46:32,456 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:46:32,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:46:32,457 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:46:32,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:46:32,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:46:32,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:46:32,458 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:46:32,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:46:32,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:46:32,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:46:32,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:46:32,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:46:32,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:46:32,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:46:32,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:46:32,461 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:46:32,461 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_4d7e6608-7dc6-4567-919b-940006f078ba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4d7e6608-7dc6-4567-919b-940006f078ba/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f5e2cf5778d35276df37ef4653bf7d5a3d1b66b [2020-11-30 00:46:32,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:46:32,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:46:32,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:46:32,830 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:46:32,831 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:46:32,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4d7e6608-7dc6-4567-919b-940006f078ba/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label24.c [2020-11-30 00:46:32,935 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4d7e6608-7dc6-4567-919b-940006f078ba/bin/uautomizer/data/f43192103/449d5bcea82342eabea0f4d2d742004e/FLAG3650d380f [2020-11-30 00:46:33,597 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:46:33,598 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4d7e6608-7dc6-4567-919b-940006f078ba/sv-benchmarks/c/eca-rers2012/Problem01_label24.c [2020-11-30 00:46:33,620 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4d7e6608-7dc6-4567-919b-940006f078ba/bin/uautomizer/data/f43192103/449d5bcea82342eabea0f4d2d742004e/FLAG3650d380f [2020-11-30 00:46:33,822 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4d7e6608-7dc6-4567-919b-940006f078ba/bin/uautomizer/data/f43192103/449d5bcea82342eabea0f4d2d742004e [2020-11-30 00:46:33,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:46:33,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:46:33,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:46:33,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:46:33,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:46:33,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:46:33" (1/1) ... [2020-11-30 00:46:33,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@700477d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:33, skipping insertion in model container [2020-11-30 00:46:33,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:46:33" (1/1) ... [2020-11-30 00:46:33,850 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:46:33,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:46:34,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:46:34,596 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:46:34,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:46:34,800 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:46:34,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:34 WrapperNode [2020-11-30 00:46:34,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:46:34,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:46:34,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:46:34,803 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:46:34,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:34" (1/1) ... [2020-11-30 00:46:34,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:34" (1/1) ... [2020-11-30 00:46:34,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:46:34,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:46:34,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:46:34,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:46:34,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:34" (1/1) ... [2020-11-30 00:46:34,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:34" (1/1) ... [2020-11-30 00:46:34,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:34" (1/1) ... [2020-11-30 00:46:34,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:34" (1/1) ... [2020-11-30 00:46:35,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:34" (1/1) ... [2020-11-30 00:46:35,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:34" (1/1) ... [2020-11-30 00:46:35,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:34" (1/1) ... [2020-11-30 00:46:35,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:46:35,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:46:35,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:46:35,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:46:35,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4d7e6608-7dc6-4567-919b-940006f078ba/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 00:46:35,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:46:35,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:46:35,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:46:35,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:46:37,217 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:46:37,220 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 00:46:37,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:46:37 BoogieIcfgContainer [2020-11-30 00:46:37,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:46:37,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:46:37,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:46:37,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:46:37,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:46:33" (1/3) ... [2020-11-30 00:46:37,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f01b748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:46:37, skipping insertion in model container [2020-11-30 00:46:37,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:34" (2/3) ... [2020-11-30 00:46:37,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f01b748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:46:37, skipping insertion in model container [2020-11-30 00:46:37,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:46:37" (3/3) ... [2020-11-30 00:46:37,238 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label24.c [2020-11-30 00:46:37,256 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:46:37,262 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:46:37,277 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:46:37,327 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:46:37,327 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:46:37,327 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:46:37,327 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:46:37,327 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:46:37,327 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:46:37,328 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:46:37,328 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:46:37,358 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-11-30 00:46:37,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-11-30 00:46:37,377 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:37,379 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] [2020-11-30 00:46:37,379 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:46:37,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:37,387 INFO L82 PathProgramCache]: Analyzing trace with hash -342959657, now seen corresponding path program 1 times [2020-11-30 00:46:37,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:37,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029588764] [2020-11-30 00:46:37,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:37,950 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 00:46:37,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029588764] [2020-11-30 00:46:37,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:37,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:46:37,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139608185] [2020-11-30 00:46:37,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:46:37,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:37,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:46:37,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:46:37,978 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-11-30 00:46:39,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:39,330 INFO L93 Difference]: Finished difference Result 554 states and 941 transitions. [2020-11-30 00:46:39,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:46:39,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-11-30 00:46:39,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:39,350 INFO L225 Difference]: With dead ends: 554 [2020-11-30 00:46:39,350 INFO L226 Difference]: Without dead ends: 266 [2020-11-30 00:46:39,355 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 00:46:39,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-30 00:46:39,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-11-30 00:46:39,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-30 00:46:39,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2020-11-30 00:46:39,462 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 98 [2020-11-30 00:46:39,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:39,464 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2020-11-30 00:46:39,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:46:39,465 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2020-11-30 00:46:39,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-11-30 00:46:39,482 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:39,483 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-30 00:46:39,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:46:39,483 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:46:39,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:39,484 INFO L82 PathProgramCache]: Analyzing trace with hash -2006009172, now seen corresponding path program 1 times [2020-11-30 00:46:39,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:39,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721785730] [2020-11-30 00:46:39,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:39,632 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:39,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721785730] [2020-11-30 00:46:39,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:39,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:46:39,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645832640] [2020-11-30 00:46:39,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:46:39,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:39,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:46:39,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:46:39,637 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand 3 states. [2020-11-30 00:46:40,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:40,437 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2020-11-30 00:46:40,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:46:40,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-11-30 00:46:40,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:40,443 INFO L225 Difference]: With dead ends: 792 [2020-11-30 00:46:40,444 INFO L226 Difference]: Without dead ends: 528 [2020-11-30 00:46:40,446 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 00:46:40,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-11-30 00:46:40,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2020-11-30 00:46:40,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-11-30 00:46:40,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 709 transitions. [2020-11-30 00:46:40,515 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 709 transitions. Word has length 104 [2020-11-30 00:46:40,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:40,515 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 709 transitions. [2020-11-30 00:46:40,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:46:40,516 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 709 transitions. [2020-11-30 00:46:40,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-11-30 00:46:40,519 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:40,520 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-30 00:46:40,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:46:40,520 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:46:40,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:40,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1662727596, now seen corresponding path program 1 times [2020-11-30 00:46:40,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:40,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332957752] [2020-11-30 00:46:40,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:40,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:40,953 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:40,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332957752] [2020-11-30 00:46:40,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:40,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:46:40,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39475647] [2020-11-30 00:46:40,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:46:40,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:40,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:46:40,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:46:40,956 INFO L87 Difference]: Start difference. First operand 528 states and 709 transitions. Second operand 4 states. [2020-11-30 00:46:42,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:42,086 INFO L93 Difference]: Finished difference Result 1280 states and 1708 transitions. [2020-11-30 00:46:42,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:46:42,086 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 105 [2020-11-30 00:46:42,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:42,092 INFO L225 Difference]: With dead ends: 1280 [2020-11-30 00:46:42,092 INFO L226 Difference]: Without dead ends: 659 [2020-11-30 00:46:42,095 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 00:46:42,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2020-11-30 00:46:42,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 659. [2020-11-30 00:46:42,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2020-11-30 00:46:42,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 783 transitions. [2020-11-30 00:46:42,125 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 783 transitions. Word has length 105 [2020-11-30 00:46:42,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:42,126 INFO L481 AbstractCegarLoop]: Abstraction has 659 states and 783 transitions. [2020-11-30 00:46:42,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:46:42,126 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 783 transitions. [2020-11-30 00:46:42,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-11-30 00:46:42,129 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:42,129 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-11-30 00:46:42,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:46:42,130 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:46:42,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:42,131 INFO L82 PathProgramCache]: Analyzing trace with hash 2127540520, now seen corresponding path program 1 times [2020-11-30 00:46:42,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:42,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146099751] [2020-11-30 00:46:42,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:42,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:42,203 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-30 00:46:42,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146099751] [2020-11-30 00:46:42,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:42,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:46:42,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662802308] [2020-11-30 00:46:42,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:46:42,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:42,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:46:42,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:46:42,206 INFO L87 Difference]: Start difference. First operand 659 states and 783 transitions. Second operand 3 states. [2020-11-30 00:46:42,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:42,902 INFO L93 Difference]: Finished difference Result 1578 states and 1901 transitions. [2020-11-30 00:46:42,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:46:42,903 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2020-11-30 00:46:42,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:42,911 INFO L225 Difference]: With dead ends: 1578 [2020-11-30 00:46:42,911 INFO L226 Difference]: Without dead ends: 921 [2020-11-30 00:46:42,913 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 00:46:42,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-11-30 00:46:42,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2020-11-30 00:46:42,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-11-30 00:46:42,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1070 transitions. [2020-11-30 00:46:42,962 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1070 transitions. Word has length 113 [2020-11-30 00:46:42,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:42,962 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1070 transitions. [2020-11-30 00:46:42,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:46:42,963 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1070 transitions. [2020-11-30 00:46:42,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-11-30 00:46:42,966 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:42,966 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:42,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:46:42,967 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:46:42,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:42,968 INFO L82 PathProgramCache]: Analyzing trace with hash 346368780, now seen corresponding path program 1 times [2020-11-30 00:46:42,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:42,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907223740] [2020-11-30 00:46:42,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:43,103 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:46:43,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907223740] [2020-11-30 00:46:43,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:43,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:46:43,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938140708] [2020-11-30 00:46:43,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:46:43,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:43,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:46:43,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:46:43,107 INFO L87 Difference]: Start difference. First operand 921 states and 1070 transitions. Second operand 3 states. [2020-11-30 00:46:43,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:43,958 INFO L93 Difference]: Finished difference Result 2757 states and 3205 transitions. [2020-11-30 00:46:43,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:46:43,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-11-30 00:46:43,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:43,971 INFO L225 Difference]: With dead ends: 2757 [2020-11-30 00:46:43,971 INFO L226 Difference]: Without dead ends: 1838 [2020-11-30 00:46:43,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:46:43,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2020-11-30 00:46:44,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1445. [2020-11-30 00:46:44,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2020-11-30 00:46:44,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1690 transitions. [2020-11-30 00:46:44,034 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1690 transitions. Word has length 122 [2020-11-30 00:46:44,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:44,035 INFO L481 AbstractCegarLoop]: Abstraction has 1445 states and 1690 transitions. [2020-11-30 00:46:44,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:46:44,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1690 transitions. [2020-11-30 00:46:44,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-11-30 00:46:44,039 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:44,040 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:44,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 00:46:44,041 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:46:44,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:44,042 INFO L82 PathProgramCache]: Analyzing trace with hash 869342971, now seen corresponding path program 1 times [2020-11-30 00:46:44,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:44,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875826724] [2020-11-30 00:46:44,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:44,189 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-30 00:46:44,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875826724] [2020-11-30 00:46:44,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864627128] [2020-11-30 00:46:44,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4d7e6608-7dc6-4567-919b-940006f078ba/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 00:46:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:44,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:46:44,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:46:44,495 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-11-30 00:46:44,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:46:44,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-30 00:46:44,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68991341] [2020-11-30 00:46:44,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:46:44,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:44,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:46:44,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:46:44,499 INFO L87 Difference]: Start difference. First operand 1445 states and 1690 transitions. Second operand 3 states. [2020-11-30 00:46:45,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:45,547 INFO L93 Difference]: Finished difference Result 3150 states and 3719 transitions. [2020-11-30 00:46:45,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:46:45,549 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2020-11-30 00:46:45,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:45,568 INFO L225 Difference]: With dead ends: 3150 [2020-11-30 00:46:45,569 INFO L226 Difference]: Without dead ends: 1707 [2020-11-30 00:46:45,572 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 127 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 00:46:45,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2020-11-30 00:46:45,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1576. [2020-11-30 00:46:45,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2020-11-30 00:46:45,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1845 transitions. [2020-11-30 00:46:45,646 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1845 transitions. Word has length 128 [2020-11-30 00:46:45,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:45,648 INFO L481 AbstractCegarLoop]: Abstraction has 1576 states and 1845 transitions. [2020-11-30 00:46:45,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:46:45,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1845 transitions. [2020-11-30 00:46:45,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-11-30 00:46:45,655 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:45,655 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:45,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-11-30 00:46:45,890 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:46:45,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:45,891 INFO L82 PathProgramCache]: Analyzing trace with hash -110117161, now seen corresponding path program 1 times [2020-11-30 00:46:45,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:45,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770603727] [2020-11-30 00:46:45,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:46,026 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-11-30 00:46:46,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770603727] [2020-11-30 00:46:46,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001907776] [2020-11-30 00:46:46,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4d7e6608-7dc6-4567-919b-940006f078ba/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 00:46:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:46,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:46:46,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:46:46,258 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-11-30 00:46:46,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:46:46,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-30 00:46:46,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637810512] [2020-11-30 00:46:46,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:46:46,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:46,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:46:46,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:46:46,296 INFO L87 Difference]: Start difference. First operand 1576 states and 1845 transitions. Second operand 3 states. [2020-11-30 00:46:47,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:47,036 INFO L93 Difference]: Finished difference Result 3281 states and 3843 transitions. [2020-11-30 00:46:47,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:46:47,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-11-30 00:46:47,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:47,049 INFO L225 Difference]: With dead ends: 3281 [2020-11-30 00:46:47,049 INFO L226 Difference]: Without dead ends: 1707 [2020-11-30 00:46:47,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 143 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 00:46:47,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2020-11-30 00:46:47,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1707. [2020-11-30 00:46:47,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2020-11-30 00:46:47,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1932 transitions. [2020-11-30 00:46:47,104 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1932 transitions. Word has length 144 [2020-11-30 00:46:47,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:47,104 INFO L481 AbstractCegarLoop]: Abstraction has 1707 states and 1932 transitions. [2020-11-30 00:46:47,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:46:47,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1932 transitions. [2020-11-30 00:46:47,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-11-30 00:46:47,108 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:47,109 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:47,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:46:47,326 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:46:47,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:47,326 INFO L82 PathProgramCache]: Analyzing trace with hash 681892855, now seen corresponding path program 1 times [2020-11-30 00:46:47,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:47,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828652080] [2020-11-30 00:46:47,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:47,450 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-30 00:46:47,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828652080] [2020-11-30 00:46:47,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094503904] [2020-11-30 00:46:47,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4d7e6608-7dc6-4567-919b-940006f078ba/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 00:46:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:47,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:46:47,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:46:47,698 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-11-30 00:46:47,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:46:47,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-30 00:46:47,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407059222] [2020-11-30 00:46:47,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:46:47,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:47,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:46:47,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:46:47,709 INFO L87 Difference]: Start difference. First operand 1707 states and 1932 transitions. Second operand 3 states. [2020-11-30 00:46:48,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:48,684 INFO L93 Difference]: Finished difference Result 4067 states and 4619 transitions. [2020-11-30 00:46:48,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:46:48,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-11-30 00:46:48,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:48,699 INFO L225 Difference]: With dead ends: 4067 [2020-11-30 00:46:48,699 INFO L226 Difference]: Without dead ends: 2231 [2020-11-30 00:46:48,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 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 00:46:48,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2020-11-30 00:46:48,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1838. [2020-11-30 00:46:48,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2020-11-30 00:46:48,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2056 transitions. [2020-11-30 00:46:48,759 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2056 transitions. Word has length 147 [2020-11-30 00:46:48,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:48,760 INFO L481 AbstractCegarLoop]: Abstraction has 1838 states and 2056 transitions. [2020-11-30 00:46:48,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:46:48,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2056 transitions. [2020-11-30 00:46:48,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-30 00:46:48,765 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:48,766 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2020-11-30 00:46:48,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:46:48,982 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:46:48,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:48,983 INFO L82 PathProgramCache]: Analyzing trace with hash -2118850408, now seen corresponding path program 2 times [2020-11-30 00:46:48,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:48,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606767185] [2020-11-30 00:46:48,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:49,088 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 68 proven. 3 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-11-30 00:46:49,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606767185] [2020-11-30 00:46:49,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197471471] [2020-11-30 00:46:49,089 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4d7e6608-7dc6-4567-919b-940006f078ba/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:46:49,236 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 00:46:49,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:46:49,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:46:49,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:46:49,316 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-11-30 00:46:49,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:46:49,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-30 00:46:49,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811312516] [2020-11-30 00:46:49,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:46:49,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:49,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:46:49,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:46:49,319 INFO L87 Difference]: Start difference. First operand 1838 states and 2056 transitions. Second operand 3 states. [2020-11-30 00:46:50,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:50,156 INFO L93 Difference]: Finished difference Result 3803 states and 4269 transitions. [2020-11-30 00:46:50,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:46:50,157 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-30 00:46:50,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:50,158 INFO L225 Difference]: With dead ends: 3803 [2020-11-30 00:46:50,158 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:46:50,163 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 158 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 00:46:50,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:46:50,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:46:50,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:46:50,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:46:50,164 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 159 [2020-11-30 00:46:50,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:50,167 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:46:50,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:46:50,167 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:46:50,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:46:50,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:46:50,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:46:50,668 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2020-11-30 00:46:50,867 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2020-11-30 00:46:50,872 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-11-30 00:46:50,872 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-11-30 00:46:50,872 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-11-30 00:46:50,872 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-11-30 00:46:50,872 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-11-30 00:46:50,872 INFO L274 CegarLoopResult]: For program point L102(lines 102 400) no Hoare annotation was computed. [2020-11-30 00:46:50,872 INFO L274 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2020-11-30 00:46:50,872 INFO L274 CegarLoopResult]: For program point L334(lines 334 400) no Hoare annotation was computed. [2020-11-30 00:46:50,873 INFO L274 CegarLoopResult]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,873 INFO L274 CegarLoopResult]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,873 INFO L274 CegarLoopResult]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,873 INFO L274 CegarLoopResult]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,873 INFO L274 CegarLoopResult]: For program point L401(lines 401 403) no Hoare annotation was computed. [2020-11-30 00:46:50,873 INFO L274 CegarLoopResult]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,873 INFO L274 CegarLoopResult]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,873 INFO L274 CegarLoopResult]: For program point L302(lines 302 400) no Hoare annotation was computed. [2020-11-30 00:46:50,873 INFO L274 CegarLoopResult]: For program point L170(lines 170 400) no Hoare annotation was computed. [2020-11-30 00:46:50,873 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-11-30 00:46:50,874 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-11-30 00:46:50,874 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-11-30 00:46:50,874 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-11-30 00:46:50,874 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-11-30 00:46:50,874 INFO L274 CegarLoopResult]: For program point L402(line 402) no Hoare annotation was computed. [2020-11-30 00:46:50,874 INFO L274 CegarLoopResult]: For program point L204(lines 204 400) no Hoare annotation was computed. [2020-11-30 00:46:50,874 INFO L274 CegarLoopResult]: For program point L72(lines 72 400) no Hoare annotation was computed. [2020-11-30 00:46:50,874 INFO L274 CegarLoopResult]: For program point L271(lines 271 400) no Hoare annotation was computed. [2020-11-30 00:46:50,874 INFO L274 CegarLoopResult]: For program point L139(lines 139 400) no Hoare annotation was computed. [2020-11-30 00:46:50,874 INFO L274 CegarLoopResult]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,875 INFO L274 CegarLoopResult]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,875 INFO L274 CegarLoopResult]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,875 INFO L274 CegarLoopResult]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,875 INFO L274 CegarLoopResult]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,875 INFO L274 CegarLoopResult]: For program point L371(lines 371 400) no Hoare annotation was computed. [2020-11-30 00:46:50,875 INFO L274 CegarLoopResult]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,875 INFO L274 CegarLoopResult]: For program point L107(lines 107 400) no Hoare annotation was computed. [2020-11-30 00:46:50,875 INFO L274 CegarLoopResult]: For program point L41(lines 41 400) no Hoare annotation was computed. [2020-11-30 00:46:50,875 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-11-30 00:46:50,875 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-11-30 00:46:50,875 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-11-30 00:46:50,876 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-11-30 00:46:50,876 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-11-30 00:46:50,876 INFO L274 CegarLoopResult]: For program point L405(line 405) no Hoare annotation was computed. [2020-11-30 00:46:50,876 INFO L274 CegarLoopResult]: For program point L339(lines 339 400) no Hoare annotation was computed. [2020-11-30 00:46:50,876 INFO L274 CegarLoopResult]: For program point L207(lines 207 400) no Hoare annotation was computed. [2020-11-30 00:46:50,876 INFO L274 CegarLoopResult]: For program point L75(lines 75 400) no Hoare annotation was computed. [2020-11-30 00:46:50,876 INFO L274 CegarLoopResult]: For program point L373(lines 373 400) no Hoare annotation was computed. [2020-11-30 00:46:50,876 INFO L274 CegarLoopResult]: For program point L241(lines 241 400) no Hoare annotation was computed. [2020-11-30 00:46:50,876 INFO L274 CegarLoopResult]: For program point L175(lines 175 400) no Hoare annotation was computed. [2020-11-30 00:46:50,876 INFO L274 CegarLoopResult]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,876 INFO L274 CegarLoopResult]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,877 INFO L274 CegarLoopResult]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,877 INFO L274 CegarLoopResult]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,877 INFO L274 CegarLoopResult]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,877 INFO L274 CegarLoopResult]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,877 INFO L274 CegarLoopResult]: For program point L275(lines 275 400) no Hoare annotation was computed. [2020-11-30 00:46:50,877 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-11-30 00:46:50,877 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-11-30 00:46:50,877 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-11-30 00:46:50,882 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-11-30 00:46:50,882 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-11-30 00:46:50,882 INFO L274 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2020-11-30 00:46:50,882 INFO L274 CegarLoopResult]: For program point L375(lines 375 400) no Hoare annotation was computed. [2020-11-30 00:46:50,882 INFO L274 CegarLoopResult]: For program point L309(lines 309 400) no Hoare annotation was computed. [2020-11-30 00:46:50,883 INFO L274 CegarLoopResult]: For program point L45(lines 45 400) no Hoare annotation was computed. [2020-11-30 00:46:50,883 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 00:46:50,883 INFO L274 CegarLoopResult]: For program point L343(lines 343 400) no Hoare annotation was computed. [2020-11-30 00:46:50,883 INFO L274 CegarLoopResult]: For program point L112(lines 112 400) no Hoare annotation was computed. [2020-11-30 00:46:50,883 INFO L274 CegarLoopResult]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,883 INFO L274 CegarLoopResult]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,884 INFO L274 CegarLoopResult]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,884 INFO L274 CegarLoopResult]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,884 INFO L274 CegarLoopResult]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,884 INFO L274 CegarLoopResult]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,884 INFO L274 CegarLoopResult]: For program point L278(lines 278 400) no Hoare annotation was computed. [2020-11-30 00:46:50,884 INFO L274 CegarLoopResult]: For program point L146(lines 146 400) no Hoare annotation was computed. [2020-11-30 00:46:50,885 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-11-30 00:46:50,885 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-11-30 00:46:50,885 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-11-30 00:46:50,885 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-11-30 00:46:50,885 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-11-30 00:46:50,886 INFO L274 CegarLoopResult]: For program point L411(line 411) no Hoare annotation was computed. [2020-11-30 00:46:50,886 INFO L274 CegarLoopResult]: For program point L213(lines 213 400) no Hoare annotation was computed. [2020-11-30 00:46:50,886 INFO L274 CegarLoopResult]: For program point L82(lines 82 400) no Hoare annotation was computed. [2020-11-30 00:46:50,886 INFO L274 CegarLoopResult]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,886 INFO L274 CegarLoopResult]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,886 INFO L274 CegarLoopResult]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,887 INFO L274 CegarLoopResult]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,887 INFO L274 CegarLoopResult]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,887 INFO L274 CegarLoopResult]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,887 INFO L274 CegarLoopResult]: For program point L347(lines 347 400) no Hoare annotation was computed. [2020-11-30 00:46:50,887 INFO L274 CegarLoopResult]: For program point L248(lines 248 400) no Hoare annotation was computed. [2020-11-30 00:46:50,888 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-11-30 00:46:50,888 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-11-30 00:46:50,888 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-11-30 00:46:50,888 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-11-30 00:46:50,888 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-11-30 00:46:50,892 INFO L274 CegarLoopResult]: For program point L414(line 414) no Hoare annotation was computed. [2020-11-30 00:46:50,892 INFO L274 CegarLoopResult]: For program point L183(lines 183 400) no Hoare annotation was computed. [2020-11-30 00:46:50,893 INFO L274 CegarLoopResult]: For program point L150(lines 150 400) no Hoare annotation was computed. [2020-11-30 00:46:50,893 INFO L274 CegarLoopResult]: For program point L382(lines 382 400) no Hoare annotation was computed. [2020-11-30 00:46:50,893 INFO L274 CegarLoopResult]: For program point L316(lines 316 400) no Hoare annotation was computed. [2020-11-30 00:46:50,893 INFO L274 CegarLoopResult]: For program point L283(lines 283 400) no Hoare annotation was computed. [2020-11-30 00:46:50,893 INFO L274 CegarLoopResult]: For program point L118(lines 118 400) no Hoare annotation was computed. [2020-11-30 00:46:50,893 INFO L274 CegarLoopResult]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2020-11-30 00:46:50,894 INFO L274 CegarLoopResult]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,894 INFO L274 CegarLoopResult]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,894 INFO L274 CegarLoopResult]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,894 INFO L274 CegarLoopResult]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,894 INFO L274 CegarLoopResult]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,894 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:46:50,895 INFO L274 CegarLoopResult]: For program point L218(lines 218 400) no Hoare annotation was computed. [2020-11-30 00:46:50,895 INFO L274 CegarLoopResult]: For program point L53(lines 53 400) no Hoare annotation was computed. [2020-11-30 00:46:50,895 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-11-30 00:46:50,895 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-11-30 00:46:50,895 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-11-30 00:46:50,895 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-11-30 00:46:50,895 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-11-30 00:46:50,896 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-11-30 00:46:50,896 INFO L274 CegarLoopResult]: For program point L154(lines 154 400) no Hoare annotation was computed. [2020-11-30 00:46:50,898 INFO L270 CegarLoopResult]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 0)) (.cse1 (<= ~a20~0 0)) (.cse2 (<= ~a8~0 14)) (.cse4 (<= ~a16~0 5)) (.cse5 (= ~a21~0 1)) (.cse3 (= ~a20~0 1)) (.cse6 (= ~a17~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse0 .cse3) (and .cse2 .cse4 .cse1) (and .cse5 .cse6 .cse1) (and .cse2 .cse4 (<= ~a21~0 0)) (and .cse5 (= ~a12~0 8) .cse3 (= ~a7~0 0) .cse6))) [2020-11-30 00:46:50,898 INFO L274 CegarLoopResult]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,898 INFO L274 CegarLoopResult]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,899 INFO L274 CegarLoopResult]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,900 INFO L274 CegarLoopResult]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,900 INFO L274 CegarLoopResult]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,900 INFO L274 CegarLoopResult]: For program point L188(lines 188 400) no Hoare annotation was computed. [2020-11-30 00:46:50,900 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-11-30 00:46:50,900 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-11-30 00:46:50,900 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-11-30 00:46:50,901 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-11-30 00:46:50,901 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-11-30 00:46:50,901 INFO L274 CegarLoopResult]: For program point L387(lines 387 400) no Hoare annotation was computed. [2020-11-30 00:46:50,901 INFO L274 CegarLoopResult]: For program point L288(lines 288 400) no Hoare annotation was computed. [2020-11-30 00:46:50,901 INFO L274 CegarLoopResult]: For program point L255(lines 255 400) no Hoare annotation was computed. [2020-11-30 00:46:50,901 INFO L274 CegarLoopResult]: For program point L90(lines 90 400) no Hoare annotation was computed. [2020-11-30 00:46:50,902 INFO L274 CegarLoopResult]: For program point L355(lines 355 400) no Hoare annotation was computed. [2020-11-30 00:46:50,902 INFO L274 CegarLoopResult]: For program point L322(lines 322 400) no Hoare annotation was computed. [2020-11-30 00:46:50,902 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:46:50,902 INFO L274 CegarLoopResult]: For program point L124(lines 124 400) no Hoare annotation was computed. [2020-11-30 00:46:50,902 INFO L277 CegarLoopResult]: At program point L587(lines 587 604) the Hoare annotation is: true [2020-11-30 00:46:50,902 INFO L274 CegarLoopResult]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,903 INFO L274 CegarLoopResult]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,903 INFO L274 CegarLoopResult]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,903 INFO L274 CegarLoopResult]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,903 INFO L274 CegarLoopResult]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,903 INFO L274 CegarLoopResult]: For program point L224(lines 224 400) no Hoare annotation was computed. [2020-11-30 00:46:50,903 INFO L274 CegarLoopResult]: For program point L158(lines 158 400) no Hoare annotation was computed. [2020-11-30 00:46:50,903 INFO L274 CegarLoopResult]: For program point L59(lines 59 400) no Hoare annotation was computed. [2020-11-30 00:46:50,904 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-11-30 00:46:50,904 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-11-30 00:46:50,904 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-11-30 00:46:50,904 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-11-30 00:46:50,904 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-11-30 00:46:50,904 INFO L274 CegarLoopResult]: For program point L94(lines 94 400) no Hoare annotation was computed. [2020-11-30 00:46:50,905 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:46:50,905 INFO L274 CegarLoopResult]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,905 INFO L274 CegarLoopResult]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,905 INFO L274 CegarLoopResult]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,905 INFO L274 CegarLoopResult]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,905 INFO L274 CegarLoopResult]: For program point L392(lines 392 400) no Hoare annotation was computed. [2020-11-30 00:46:50,906 INFO L274 CegarLoopResult]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,906 INFO L274 CegarLoopResult]: For program point L326(lines 326 400) no Hoare annotation was computed. [2020-11-30 00:46:50,906 INFO L274 CegarLoopResult]: For program point L260(lines 260 400) no Hoare annotation was computed. [2020-11-30 00:46:50,906 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-11-30 00:46:50,906 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-11-30 00:46:50,906 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-11-30 00:46:50,907 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-11-30 00:46:50,907 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-11-30 00:46:50,907 INFO L274 CegarLoopResult]: For program point L228(lines 228 400) no Hoare annotation was computed. [2020-11-30 00:46:50,908 INFO L274 CegarLoopResult]: For program point L162(lines 162 400) no Hoare annotation was computed. [2020-11-30 00:46:50,908 INFO L274 CegarLoopResult]: For program point L129(lines 129 400) no Hoare annotation was computed. [2020-11-30 00:46:50,908 INFO L274 CegarLoopResult]: For program point L328(lines 328 400) no Hoare annotation was computed. [2020-11-30 00:46:50,908 INFO L274 CegarLoopResult]: For program point L196(lines 196 400) no Hoare annotation was computed. [2020-11-30 00:46:50,909 INFO L274 CegarLoopResult]: For program point L64(lines 64 400) no Hoare annotation was computed. [2020-11-30 00:46:50,909 INFO L274 CegarLoopResult]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,909 INFO L270 CegarLoopResult]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 0)) (.cse1 (<= ~a20~0 0)) (.cse2 (<= ~a8~0 14)) (.cse4 (<= ~a16~0 5)) (.cse5 (= ~a21~0 1)) (.cse3 (= ~a20~0 1)) (.cse6 (= ~a17~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse0 .cse3) (and .cse2 .cse4 .cse1) (and .cse5 .cse6 .cse1) (and .cse2 .cse4 (<= ~a21~0 0)) (and .cse5 (= ~a12~0 8) .cse3 (= ~a7~0 0) .cse6))) [2020-11-30 00:46:50,909 INFO L274 CegarLoopResult]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,910 INFO L274 CegarLoopResult]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,910 INFO L274 CegarLoopResult]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,910 INFO L274 CegarLoopResult]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,910 INFO L274 CegarLoopResult]: For program point L296(lines 296 400) no Hoare annotation was computed. [2020-11-30 00:46:50,910 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:46:50,910 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 00:46:50,911 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-11-30 00:46:50,911 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-11-30 00:46:50,911 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-11-30 00:46:50,911 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-11-30 00:46:50,911 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-11-30 00:46:50,911 INFO L274 CegarLoopResult]: For program point L363(lines 363 400) no Hoare annotation was computed. [2020-11-30 00:46:50,912 INFO L274 CegarLoopResult]: For program point L199(lines 199 400) no Hoare annotation was computed. [2020-11-30 00:46:50,912 INFO L274 CegarLoopResult]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,912 INFO L274 CegarLoopResult]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,912 INFO L274 CegarLoopResult]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,912 INFO L274 CegarLoopResult]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,912 INFO L274 CegarLoopResult]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2020-11-30 00:46:50,913 INFO L274 CegarLoopResult]: For program point L365(lines 365 400) no Hoare annotation was computed. [2020-11-30 00:46:50,913 INFO L274 CegarLoopResult]: For program point L266(lines 266 400) no Hoare annotation was computed. [2020-11-30 00:46:50,913 INFO L274 CegarLoopResult]: For program point L233(lines 233 400) no Hoare annotation was computed. [2020-11-30 00:46:50,913 INFO L274 CegarLoopResult]: For program point L134(lines 134 400) no Hoare annotation was computed. [2020-11-30 00:46:50,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:46:50 BoogieIcfgContainer [2020-11-30 00:46:50,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:46:50,956 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:46:50,956 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:46:50,956 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:46:50,957 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:46:37" (3/4) ... [2020-11-30 00:46:50,960 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:46:50,996 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 00:46:50,998 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:46:51,000 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:46:51,002 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:46:51,211 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4d7e6608-7dc6-4567-919b-940006f078ba/bin/uautomizer/witness.graphml [2020-11-30 00:46:51,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:46:51,212 INFO L168 Benchmark]: Toolchain (without parser) took 17385.59 ms. Allocated memory was 90.2 MB in the beginning and 295.7 MB in the end (delta: 205.5 MB). Free memory was 56.0 MB in the beginning and 125.5 MB in the end (delta: -69.5 MB). Peak memory consumption was 134.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:51,213 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 90.2 MB. Free memory was 63.0 MB in the beginning and 63.0 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:46:51,213 INFO L168 Benchmark]: CACSL2BoogieTranslator took 969.21 ms. Allocated memory is still 90.2 MB. Free memory was 55.8 MB in the beginning and 51.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:51,214 INFO L168 Benchmark]: Boogie Procedure Inliner took 149.20 ms. Allocated memory is still 90.2 MB. Free memory was 51.4 MB in the beginning and 45.8 MB in the end (delta: 5.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:51,214 INFO L168 Benchmark]: Boogie Preprocessor took 133.02 ms. Allocated memory is still 90.2 MB. Free memory was 45.8 MB in the beginning and 41.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:51,215 INFO L168 Benchmark]: RCFGBuilder took 2138.77 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 41.2 MB in the beginning and 86.8 MB in the end (delta: -45.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:51,216 INFO L168 Benchmark]: TraceAbstraction took 13726.05 ms. Allocated memory was 115.3 MB in the beginning and 295.7 MB in the end (delta: 180.4 MB). Free memory was 86.0 MB in the beginning and 140.2 MB in the end (delta: -54.2 MB). Peak memory consumption was 127.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:51,216 INFO L168 Benchmark]: Witness Printer took 255.50 ms. Allocated memory is still 295.7 MB. Free memory was 140.2 MB in the beginning and 125.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:51,219 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 90.2 MB. Free memory was 63.0 MB in the beginning and 63.0 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 969.21 ms. Allocated memory is still 90.2 MB. Free memory was 55.8 MB in the beginning and 51.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 149.20 ms. Allocated memory is still 90.2 MB. Free memory was 51.4 MB in the beginning and 45.8 MB in the end (delta: 5.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 133.02 ms. Allocated memory is still 90.2 MB. Free memory was 45.8 MB in the beginning and 41.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2138.77 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 41.2 MB in the beginning and 86.8 MB in the end (delta: -45.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13726.05 ms. Allocated memory was 115.3 MB in the beginning and 295.7 MB in the end (delta: 180.4 MB). Free memory was 86.0 MB in the beginning and 140.2 MB in the end (delta: -54.2 MB). Peak memory consumption was 127.8 MB. Max. memory is 16.1 GB. * Witness Printer took 255.50 ms. Allocated memory is still 295.7 MB. Free memory was 140.2 MB in the beginning and 125.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 12.6 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: ((((((a17 <= 0 && a20 <= 0) || (a8 <= 14 && a20 == 1)) || (a17 <= 0 && a20 == 1)) || ((a8 <= 14 && a16 <= 5) && a20 <= 0)) || ((a21 == 1 && a17 == 1) && a20 <= 0)) || ((a8 <= 14 && a16 <= 5) && a21 <= 0)) || ((((a21 == 1 && a12 == 8) && a20 == 1) && a7 == 0) && a17 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: ((((((a17 <= 0 && a20 <= 0) || (a8 <= 14 && a20 == 1)) || (a17 <= 0 && a20 == 1)) || ((a8 <= 14 && a16 <= 5) && a20 <= 0)) || ((a21 == 1 && a17 == 1) && a20 <= 0)) || ((a8 <= 14 && a16 <= 5) && a21 <= 0)) || ((((a21 == 1 && a12 == 8) && a20 == 1) && a7 == 0) && a17 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.0s, OverallIterations: 9, TraceHistogramMax: 6, AutomataDifference: 8.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 889 SDtfs, 791 SDslu, 54 SDs, 0 SdLazy, 3205 SolverSat, 444 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 598 GetRequests, 580 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1838occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 917 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 41 NumberOfFragments, 137 HoareAnnotationTreeSize, 3 FomulaSimplifications, 684 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 62 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1698 NumberOfCodeBlocks, 1698 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1685 ConstructedInterpolants, 0 QuantifiedInterpolants, 647139 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1365 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 766/778 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...