./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label31.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_b09864ed-25c3-4404-a189-d54b1d54fd93/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b09864ed-25c3-4404-a189-d54b1d54fd93/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b09864ed-25c3-4404-a189-d54b1d54fd93/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b09864ed-25c3-4404-a189-d54b1d54fd93/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label31.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b09864ed-25c3-4404-a189-d54b1d54fd93/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b09864ed-25c3-4404-a189-d54b1d54fd93/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 ffbd3334bfb572bc600748249cc65ef190a2061b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:59:50,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:59:50,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:59:50,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:59:50,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:59:50,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:59:50,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:59:50,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:59:50,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:59:50,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:59:50,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:59:50,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:59:50,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:59:50,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:59:50,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:59:50,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:59:50,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:59:50,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:59:50,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:59:50,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:59:50,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:59:50,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:59:50,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:59:50,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:59:50,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:59:50,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:59:50,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:59:50,336 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:59:50,336 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:59:50,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:59:50,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:59:50,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:59:50,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:59:50,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:59:50,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:59:50,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:59:50,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:59:50,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:59:50,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:59:50,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:59:50,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:59:50,359 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b09864ed-25c3-4404-a189-d54b1d54fd93/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:59:50,401 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:59:50,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:59:50,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:59:50,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:59:50,404 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:59:50,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:59:50,405 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:59:50,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:59:50,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:59:50,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:59:50,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:59:50,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:59:50,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:59:50,408 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:59:50,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:59:50,408 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:59:50,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:59:50,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:59:50,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:59:50,410 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:59:50,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:59:50,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:59:50,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:59:50,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:59:50,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:59:50,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:59:50,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:59:50,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:59:50,412 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:59:50,412 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_b09864ed-25c3-4404-a189-d54b1d54fd93/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b09864ed-25c3-4404-a189-d54b1d54fd93/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffbd3334bfb572bc600748249cc65ef190a2061b [2020-11-28 02:59:50,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:59:50,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:59:50,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:59:50,763 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:59:50,765 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:59:50,766 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b09864ed-25c3-4404-a189-d54b1d54fd93/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label31.c [2020-11-28 02:59:50,858 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b09864ed-25c3-4404-a189-d54b1d54fd93/bin/uautomizer/data/159fa8862/69d714edf91247f287fdb5fc97fcb9bd/FLAGa80f5cd85 [2020-11-28 02:59:51,499 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:59:51,500 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b09864ed-25c3-4404-a189-d54b1d54fd93/sv-benchmarks/c/eca-rers2012/Problem01_label31.c [2020-11-28 02:59:51,521 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b09864ed-25c3-4404-a189-d54b1d54fd93/bin/uautomizer/data/159fa8862/69d714edf91247f287fdb5fc97fcb9bd/FLAGa80f5cd85 [2020-11-28 02:59:51,723 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b09864ed-25c3-4404-a189-d54b1d54fd93/bin/uautomizer/data/159fa8862/69d714edf91247f287fdb5fc97fcb9bd [2020-11-28 02:59:51,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:59:51,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:59:51,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:59:51,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:59:51,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:59:51,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:51" (1/1) ... [2020-11-28 02:59:51,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43d3f082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:51, skipping insertion in model container [2020-11-28 02:59:51,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:51" (1/1) ... [2020-11-28 02:59:51,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:59:51,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:59:52,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:59:52,311 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:59:52,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:59:52,446 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:59:52,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:52 WrapperNode [2020-11-28 02:59:52,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:59:52,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:59:52,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:59:52,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:59:52,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:52" (1/1) ... [2020-11-28 02:59:52,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:52" (1/1) ... [2020-11-28 02:59:52,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:59:52,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:59:52,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:59:52,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:59:52,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:52" (1/1) ... [2020-11-28 02:59:52,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:52" (1/1) ... [2020-11-28 02:59:52,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:52" (1/1) ... [2020-11-28 02:59:52,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:52" (1/1) ... [2020-11-28 02:59:52,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:52" (1/1) ... [2020-11-28 02:59:52,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:52" (1/1) ... [2020-11-28 02:59:52,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:52" (1/1) ... [2020-11-28 02:59:52,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:59:52,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:59:52,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:59:52,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:59:52,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b09864ed-25c3-4404-a189-d54b1d54fd93/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 [2020-11-28 02:59:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:59:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:59:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:59:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:59:54,146 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:59:54,146 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 02:59:54,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:54 BoogieIcfgContainer [2020-11-28 02:59:54,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:59:54,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:59:54,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:59:54,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:59:54,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:59:51" (1/3) ... [2020-11-28 02:59:54,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592cc205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:54, skipping insertion in model container [2020-11-28 02:59:54,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:52" (2/3) ... [2020-11-28 02:59:54,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592cc205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:54, skipping insertion in model container [2020-11-28 02:59:54,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:54" (3/3) ... [2020-11-28 02:59:54,160 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label31.c [2020-11-28 02:59:54,175 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:59:54,179 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 02:59:54,191 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 02:59:54,228 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:59:54,229 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:59:54,229 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:59:54,229 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:59:54,229 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:59:54,229 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:59:54,229 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:59:54,230 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:59:54,251 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-11-28 02:59:54,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-11-28 02:59:54,268 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:54,269 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] [2020-11-28 02:59:54,269 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:54,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:54,276 INFO L82 PathProgramCache]: Analyzing trace with hash 779606815, now seen corresponding path program 1 times [2020-11-28 02:59:54,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:54,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074456455] [2020-11-28 02:59:54,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:54,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:54,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:54,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074456455] [2020-11-28 02:59:54,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:54,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:59:54,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047482136] [2020-11-28 02:59:54,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:59:54,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:54,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:59:54,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:59:54,828 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-11-28 02:59:55,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:55,889 INFO L93 Difference]: Finished difference Result 529 states and 916 transitions. [2020-11-28 02:59:55,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:59:55,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2020-11-28 02:59:55,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:55,908 INFO L225 Difference]: With dead ends: 529 [2020-11-28 02:59:55,912 INFO L226 Difference]: Without dead ends: 266 [2020-11-28 02:59:55,921 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 [2020-11-28 02:59:55,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-28 02:59:56,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-11-28 02:59:56,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-28 02:59:56,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 392 transitions. [2020-11-28 02:59:56,020 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 392 transitions. Word has length 92 [2020-11-28 02:59:56,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:56,022 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 392 transitions. [2020-11-28 02:59:56,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:59:56,023 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 392 transitions. [2020-11-28 02:59:56,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-11-28 02:59:56,036 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:56,036 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:56,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:59:56,037 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:56,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:56,040 INFO L82 PathProgramCache]: Analyzing trace with hash -101775751, now seen corresponding path program 1 times [2020-11-28 02:59:56,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:56,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204098349] [2020-11-28 02:59:56,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:56,142 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:56,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204098349] [2020-11-28 02:59:56,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:56,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:59:56,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799658213] [2020-11-28 02:59:56,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:59:56,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:56,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:59:56,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:59:56,150 INFO L87 Difference]: Start difference. First operand 266 states and 392 transitions. Second operand 3 states. [2020-11-28 02:59:56,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:56,870 INFO L93 Difference]: Finished difference Result 792 states and 1171 transitions. [2020-11-28 02:59:56,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:59:56,870 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2020-11-28 02:59:56,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:56,874 INFO L225 Difference]: With dead ends: 792 [2020-11-28 02:59:56,874 INFO L226 Difference]: Without dead ends: 528 [2020-11-28 02:59:56,875 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 [2020-11-28 02:59:56,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-11-28 02:59:56,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2020-11-28 02:59:56,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-11-28 02:59:56,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 745 transitions. [2020-11-28 02:59:56,924 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 745 transitions. Word has length 97 [2020-11-28 02:59:56,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:56,924 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 745 transitions. [2020-11-28 02:59:56,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:59:56,925 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 745 transitions. [2020-11-28 02:59:56,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-11-28 02:59:56,928 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:56,928 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:56,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 02:59:56,929 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:56,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:56,929 INFO L82 PathProgramCache]: Analyzing trace with hash -492072032, now seen corresponding path program 1 times [2020-11-28 02:59:56,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:56,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877233521] [2020-11-28 02:59:56,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:57,046 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:57,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877233521] [2020-11-28 02:59:57,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:57,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:59:57,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635373689] [2020-11-28 02:59:57,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:59:57,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:57,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:59:57,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:59:57,049 INFO L87 Difference]: Start difference. First operand 528 states and 745 transitions. Second operand 3 states. [2020-11-28 02:59:57,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:57,698 INFO L93 Difference]: Finished difference Result 1447 states and 2032 transitions. [2020-11-28 02:59:57,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:59:57,699 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-11-28 02:59:57,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:57,704 INFO L225 Difference]: With dead ends: 1447 [2020-11-28 02:59:57,704 INFO L226 Difference]: Without dead ends: 921 [2020-11-28 02:59:57,706 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 [2020-11-28 02:59:57,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-11-28 02:59:57,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 790. [2020-11-28 02:59:57,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2020-11-28 02:59:57,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1043 transitions. [2020-11-28 02:59:57,749 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1043 transitions. Word has length 107 [2020-11-28 02:59:57,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:57,751 INFO L481 AbstractCegarLoop]: Abstraction has 790 states and 1043 transitions. [2020-11-28 02:59:57,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:59:57,752 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1043 transitions. [2020-11-28 02:59:57,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-11-28 02:59:57,759 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:57,759 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:57,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 02:59:57,760 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:57,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:57,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1125093710, now seen corresponding path program 1 times [2020-11-28 02:59:57,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:57,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799497864] [2020-11-28 02:59:57,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:57,865 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-28 02:59:57,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799497864] [2020-11-28 02:59:57,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:57,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:59:57,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979558784] [2020-11-28 02:59:57,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:59:57,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:57,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:59:57,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:59:57,869 INFO L87 Difference]: Start difference. First operand 790 states and 1043 transitions. Second operand 3 states. [2020-11-28 02:59:58,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:58,542 INFO L93 Difference]: Finished difference Result 1840 states and 2437 transitions. [2020-11-28 02:59:58,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:59:58,543 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2020-11-28 02:59:58,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:58,550 INFO L225 Difference]: With dead ends: 1840 [2020-11-28 02:59:58,550 INFO L226 Difference]: Without dead ends: 1052 [2020-11-28 02:59:58,552 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 [2020-11-28 02:59:58,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2020-11-28 02:59:58,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 921. [2020-11-28 02:59:58,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-11-28 02:59:58,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1186 transitions. [2020-11-28 02:59:58,582 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1186 transitions. Word has length 108 [2020-11-28 02:59:58,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:58,583 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1186 transitions. [2020-11-28 02:59:58,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:59:58,583 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1186 transitions. [2020-11-28 02:59:58,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-11-28 02:59:58,585 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:58,586 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:58,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 02:59:58,586 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:58,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:58,587 INFO L82 PathProgramCache]: Analyzing trace with hash 947749128, now seen corresponding path program 1 times [2020-11-28 02:59:58,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:58,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217715792] [2020-11-28 02:59:58,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:58,728 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-28 02:59:58,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217715792] [2020-11-28 02:59:58,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:58,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:59:58,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289051069] [2020-11-28 02:59:58,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:59:58,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:58,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:59:58,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:59:58,731 INFO L87 Difference]: Start difference. First operand 921 states and 1186 transitions. Second operand 3 states. [2020-11-28 02:59:59,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:59,398 INFO L93 Difference]: Finished difference Result 2102 states and 2723 transitions. [2020-11-28 02:59:59,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:59:59,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2020-11-28 02:59:59,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:59,406 INFO L225 Difference]: With dead ends: 2102 [2020-11-28 02:59:59,406 INFO L226 Difference]: Without dead ends: 1183 [2020-11-28 02:59:59,408 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 [2020-11-28 02:59:59,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2020-11-28 02:59:59,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2020-11-28 02:59:59,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1183 states. [2020-11-28 02:59:59,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1491 transitions. [2020-11-28 02:59:59,449 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1491 transitions. Word has length 112 [2020-11-28 02:59:59,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:59,449 INFO L481 AbstractCegarLoop]: Abstraction has 1183 states and 1491 transitions. [2020-11-28 02:59:59,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:59:59,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1491 transitions. [2020-11-28 02:59:59,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-11-28 02:59:59,453 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:59,453 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:59,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 02:59:59,454 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:59:59,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:59,454 INFO L82 PathProgramCache]: Analyzing trace with hash 728399346, now seen corresponding path program 1 times [2020-11-28 02:59:59,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:59,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111416113] [2020-11-28 02:59:59,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:59,639 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-11-28 02:59:59,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111416113] [2020-11-28 02:59:59,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:59,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:59:59,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614625563] [2020-11-28 02:59:59,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:59:59,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:59,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:59:59,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:59:59,645 INFO L87 Difference]: Start difference. First operand 1183 states and 1491 transitions. Second operand 4 states. [2020-11-28 03:00:00,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:00,674 INFO L93 Difference]: Finished difference Result 2888 states and 3612 transitions. [2020-11-28 03:00:00,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:00:00,674 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 141 [2020-11-28 03:00:00,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:00,683 INFO L225 Difference]: With dead ends: 2888 [2020-11-28 03:00:00,684 INFO L226 Difference]: Without dead ends: 1707 [2020-11-28 03:00:00,686 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 [2020-11-28 03:00:00,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2020-11-28 03:00:00,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1576. [2020-11-28 03:00:00,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2020-11-28 03:00:00,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1950 transitions. [2020-11-28 03:00:00,739 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1950 transitions. Word has length 141 [2020-11-28 03:00:00,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:00,744 INFO L481 AbstractCegarLoop]: Abstraction has 1576 states and 1950 transitions. [2020-11-28 03:00:00,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:00:00,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1950 transitions. [2020-11-28 03:00:00,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-11-28 03:00:00,748 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:00,749 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:00:00,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:00:00,749 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:00:00,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:00,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1160222521, now seen corresponding path program 1 times [2020-11-28 03:00:00,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:00,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683470227] [2020-11-28 03:00:00,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:00,901 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-28 03:00:00,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683470227] [2020-11-28 03:00:00,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714120425] [2020-11-28 03:00:00,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b09864ed-25c3-4404-a189-d54b1d54fd93/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 [2020-11-28 03:00:01,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:01,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:00:01,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:00:01,301 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-28 03:00:01,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:00:01,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-28 03:00:01,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621853722] [2020-11-28 03:00:01,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:00:01,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:01,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:00:01,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:00:01,305 INFO L87 Difference]: Start difference. First operand 1576 states and 1950 transitions. Second operand 3 states. [2020-11-28 03:00:02,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:02,054 INFO L93 Difference]: Finished difference Result 2495 states and 3032 transitions. [2020-11-28 03:00:02,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:00:02,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-11-28 03:00:02,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:02,070 INFO L225 Difference]: With dead ends: 2495 [2020-11-28 03:00:02,070 INFO L226 Difference]: Without dead ends: 2493 [2020-11-28 03:00:02,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:00:02,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2020-11-28 03:00:02,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2493. [2020-11-28 03:00:02,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2493 states. [2020-11-28 03:00:02,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2493 states to 2493 states and 3029 transitions. [2020-11-28 03:00:02,139 INFO L78 Accepts]: Start accepts. Automaton has 2493 states and 3029 transitions. Word has length 158 [2020-11-28 03:00:02,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:02,141 INFO L481 AbstractCegarLoop]: Abstraction has 2493 states and 3029 transitions. [2020-11-28 03:00:02,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:00:02,141 INFO L276 IsEmpty]: Start isEmpty. Operand 2493 states and 3029 transitions. [2020-11-28 03:00:02,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-28 03:00:02,147 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:02,147 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:00:02,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-11-28 03:00:02,364 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:00:02,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:02,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1677620763, now seen corresponding path program 1 times [2020-11-28 03:00:02,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:02,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156859988] [2020-11-28 03:00:02,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:02,475 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-11-28 03:00:02,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156859988] [2020-11-28 03:00:02,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:02,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:00:02,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33796514] [2020-11-28 03:00:02,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:00:02,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:02,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:00:02,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:00:02,478 INFO L87 Difference]: Start difference. First operand 2493 states and 3029 transitions. Second operand 3 states. [2020-11-28 03:00:03,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:03,275 INFO L93 Difference]: Finished difference Result 5639 states and 6837 transitions. [2020-11-28 03:00:03,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:00:03,276 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2020-11-28 03:00:03,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:03,293 INFO L225 Difference]: With dead ends: 5639 [2020-11-28 03:00:03,294 INFO L226 Difference]: Without dead ends: 2886 [2020-11-28 03:00:03,298 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 [2020-11-28 03:00:03,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2020-11-28 03:00:03,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2886. [2020-11-28 03:00:03,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2886 states. [2020-11-28 03:00:03,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3202 transitions. [2020-11-28 03:00:03,373 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3202 transitions. Word has length 183 [2020-11-28 03:00:03,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:03,373 INFO L481 AbstractCegarLoop]: Abstraction has 2886 states and 3202 transitions. [2020-11-28 03:00:03,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:00:03,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3202 transitions. [2020-11-28 03:00:03,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-11-28 03:00:03,381 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:03,382 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-28 03:00:03,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:00:03,382 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:00:03,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:03,383 INFO L82 PathProgramCache]: Analyzing trace with hash 603538606, now seen corresponding path program 1 times [2020-11-28 03:00:03,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:03,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925116391] [2020-11-28 03:00:03,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:03,529 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 143 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-11-28 03:00:03,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925116391] [2020-11-28 03:00:03,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929433767] [2020-11-28 03:00:03,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b09864ed-25c3-4404-a189-d54b1d54fd93/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 [2020-11-28 03:00:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:03,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:00:03,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:00:03,735 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-11-28 03:00:03,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:00:03,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-28 03:00:03,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819256482] [2020-11-28 03:00:03,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:00:03,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:03,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:00:03,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:00:03,738 INFO L87 Difference]: Start difference. First operand 2886 states and 3202 transitions. Second operand 3 states. [2020-11-28 03:00:04,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:04,362 INFO L93 Difference]: Finished difference Result 5770 states and 6402 transitions. [2020-11-28 03:00:04,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:00:04,363 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2020-11-28 03:00:04,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:04,379 INFO L225 Difference]: With dead ends: 5770 [2020-11-28 03:00:04,379 INFO L226 Difference]: Without dead ends: 2886 [2020-11-28 03:00:04,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:00:04,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2020-11-28 03:00:04,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2755. [2020-11-28 03:00:04,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2755 states. [2020-11-28 03:00:04,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3016 transitions. [2020-11-28 03:00:04,447 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3016 transitions. Word has length 197 [2020-11-28 03:00:04,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:04,447 INFO L481 AbstractCegarLoop]: Abstraction has 2755 states and 3016 transitions. [2020-11-28 03:00:04,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:00:04,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3016 transitions. [2020-11-28 03:00:04,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-11-28 03:00:04,455 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:04,456 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-28 03:00:04,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:00:04,675 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:00:04,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:04,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1530705844, now seen corresponding path program 1 times [2020-11-28 03:00:04,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:04,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549313575] [2020-11-28 03:00:04,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:04,823 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 161 proven. 6 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-11-28 03:00:04,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549313575] [2020-11-28 03:00:04,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003028448] [2020-11-28 03:00:04,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b09864ed-25c3-4404-a189-d54b1d54fd93/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 [2020-11-28 03:00:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:04,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:00:04,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:00:05,039 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-11-28 03:00:05,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:00:05,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-28 03:00:05,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172630387] [2020-11-28 03:00:05,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:00:05,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:05,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:00:05,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:00:05,043 INFO L87 Difference]: Start difference. First operand 2755 states and 3016 transitions. Second operand 3 states. [2020-11-28 03:00:05,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:05,860 INFO L93 Difference]: Finished difference Result 5508 states and 6030 transitions. [2020-11-28 03:00:05,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:00:05,861 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 216 [2020-11-28 03:00:05,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:05,877 INFO L225 Difference]: With dead ends: 5508 [2020-11-28 03:00:05,877 INFO L226 Difference]: Without dead ends: 2755 [2020-11-28 03:00:05,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:00:05,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2020-11-28 03:00:05,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2755. [2020-11-28 03:00:05,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2755 states. [2020-11-28 03:00:05,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 2994 transitions. [2020-11-28 03:00:05,955 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 2994 transitions. Word has length 216 [2020-11-28 03:00:05,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:05,955 INFO L481 AbstractCegarLoop]: Abstraction has 2755 states and 2994 transitions. [2020-11-28 03:00:05,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:00:05,956 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 2994 transitions. [2020-11-28 03:00:05,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-11-28 03:00:05,963 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:05,963 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-28 03:00:06,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-28 03:00:06,190 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:00:06,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:06,190 INFO L82 PathProgramCache]: Analyzing trace with hash 248237854, now seen corresponding path program 1 times [2020-11-28 03:00:06,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:06,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903505659] [2020-11-28 03:00:06,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:06,325 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 166 proven. 6 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-11-28 03:00:06,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903505659] [2020-11-28 03:00:06,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628640654] [2020-11-28 03:00:06,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b09864ed-25c3-4404-a189-d54b1d54fd93/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 [2020-11-28 03:00:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:06,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:00:06,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:00:06,547 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-11-28 03:00:06,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:00:06,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-28 03:00:06,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369943616] [2020-11-28 03:00:06,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:00:06,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:06,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:00:06,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:00:06,550 INFO L87 Difference]: Start difference. First operand 2755 states and 2994 transitions. Second operand 3 states. [2020-11-28 03:00:07,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:07,085 INFO L93 Difference]: Finished difference Result 5639 states and 6133 transitions. [2020-11-28 03:00:07,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:00:07,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2020-11-28 03:00:07,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:07,101 INFO L225 Difference]: With dead ends: 5639 [2020-11-28 03:00:07,102 INFO L226 Difference]: Without dead ends: 2886 [2020-11-28 03:00:07,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:00:07,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2020-11-28 03:00:07,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2886. [2020-11-28 03:00:07,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2886 states. [2020-11-28 03:00:07,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3110 transitions. [2020-11-28 03:00:07,168 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3110 transitions. Word has length 221 [2020-11-28 03:00:07,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:07,169 INFO L481 AbstractCegarLoop]: Abstraction has 2886 states and 3110 transitions. [2020-11-28 03:00:07,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:00:07,169 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3110 transitions. [2020-11-28 03:00:07,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-11-28 03:00:07,178 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:07,178 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-11-28 03:00:07,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:00:07,406 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:00:07,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:07,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1809591839, now seen corresponding path program 1 times [2020-11-28 03:00:07,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:07,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105240325] [2020-11-28 03:00:07,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:07,609 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2020-11-28 03:00:07,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105240325] [2020-11-28 03:00:07,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:07,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:00:07,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174539880] [2020-11-28 03:00:07,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:00:07,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:07,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:00:07,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:00:07,612 INFO L87 Difference]: Start difference. First operand 2886 states and 3110 transitions. Second operand 4 states. [2020-11-28 03:00:08,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:08,511 INFO L93 Difference]: Finished difference Result 6163 states and 6628 transitions. [2020-11-28 03:00:08,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:00:08,512 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 278 [2020-11-28 03:00:08,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:08,528 INFO L225 Difference]: With dead ends: 6163 [2020-11-28 03:00:08,528 INFO L226 Difference]: Without dead ends: 3279 [2020-11-28 03:00:08,532 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 [2020-11-28 03:00:08,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2020-11-28 03:00:08,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 2886. [2020-11-28 03:00:08,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2886 states. [2020-11-28 03:00:08,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3090 transitions. [2020-11-28 03:00:08,607 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3090 transitions. Word has length 278 [2020-11-28 03:00:08,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:08,607 INFO L481 AbstractCegarLoop]: Abstraction has 2886 states and 3090 transitions. [2020-11-28 03:00:08,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:00:08,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3090 transitions. [2020-11-28 03:00:08,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-11-28 03:00:08,618 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:08,618 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:00:08,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:00:08,619 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:00:08,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:08,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1184758200, now seen corresponding path program 1 times [2020-11-28 03:00:08,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:08,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689876785] [2020-11-28 03:00:08,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:08,864 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 526 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2020-11-28 03:00:08,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689876785] [2020-11-28 03:00:08,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:08,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:00:08,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668600907] [2020-11-28 03:00:08,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:00:08,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:08,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:00:08,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:00:08,867 INFO L87 Difference]: Start difference. First operand 2886 states and 3090 transitions. Second operand 3 states. [2020-11-28 03:00:09,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:09,470 INFO L93 Difference]: Finished difference Result 6687 states and 7152 transitions. [2020-11-28 03:00:09,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:00:09,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 343 [2020-11-28 03:00:09,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:09,485 INFO L225 Difference]: With dead ends: 6687 [2020-11-28 03:00:09,485 INFO L226 Difference]: Without dead ends: 2886 [2020-11-28 03:00:09,490 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 [2020-11-28 03:00:09,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2020-11-28 03:00:09,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2886. [2020-11-28 03:00:09,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2886 states. [2020-11-28 03:00:09,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3053 transitions. [2020-11-28 03:00:09,548 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3053 transitions. Word has length 343 [2020-11-28 03:00:09,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:09,548 INFO L481 AbstractCegarLoop]: Abstraction has 2886 states and 3053 transitions. [2020-11-28 03:00:09,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:00:09,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3053 transitions. [2020-11-28 03:00:09,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2020-11-28 03:00:09,559 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:00:09,560 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:00:09,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-28 03:00:09,560 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:00:09,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:00:09,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1239829015, now seen corresponding path program 1 times [2020-11-28 03:00:09,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:00:09,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053862768] [2020-11-28 03:00:09,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:00:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:00:09,763 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 556 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-11-28 03:00:09,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053862768] [2020-11-28 03:00:09,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:00:09,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:00:09,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71281577] [2020-11-28 03:00:09,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:00:09,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:00:09,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:00:09,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:00:09,766 INFO L87 Difference]: Start difference. First operand 2886 states and 3053 transitions. Second operand 3 states. [2020-11-28 03:00:10,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:00:10,323 INFO L93 Difference]: Finished difference Result 4851 states and 5142 transitions. [2020-11-28 03:00:10,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:00:10,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 355 [2020-11-28 03:00:10,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:00:10,325 INFO L225 Difference]: With dead ends: 4851 [2020-11-28 03:00:10,325 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:00:10,329 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 [2020-11-28 03:00:10,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:00:10,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:00:10,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:00:10,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:00:10,330 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 355 [2020-11-28 03:00:10,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:00:10,330 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:00:10,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:00:10,330 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:00:10,331 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:00:10,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-28 03:00:10,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:00:10,582 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 30 [2020-11-28 03:00:10,784 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 30 [2020-11-28 03:00:10,787 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-11-28 03:00:10,787 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-11-28 03:00:10,787 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-11-28 03:00:10,787 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-11-28 03:00:10,788 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-11-28 03:00:10,788 INFO L274 CegarLoopResult]: For program point L102(lines 102 400) no Hoare annotation was computed. [2020-11-28 03:00:10,788 INFO L274 CegarLoopResult]: For program point L598(line 598) no Hoare annotation was computed. [2020-11-28 03:00:10,788 INFO L274 CegarLoopResult]: For program point L334(lines 334 400) no Hoare annotation was computed. [2020-11-28 03:00:10,788 INFO L274 CegarLoopResult]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,788 INFO L274 CegarLoopResult]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,788 INFO L274 CegarLoopResult]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,788 INFO L274 CegarLoopResult]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,788 INFO L274 CegarLoopResult]: For program point L401(lines 401 403) no Hoare annotation was computed. [2020-11-28 03:00:10,788 INFO L274 CegarLoopResult]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,789 INFO L274 CegarLoopResult]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,789 INFO L274 CegarLoopResult]: For program point L302(lines 302 400) no Hoare annotation was computed. [2020-11-28 03:00:10,789 INFO L274 CegarLoopResult]: For program point L170(lines 170 400) no Hoare annotation was computed. [2020-11-28 03:00:10,789 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-11-28 03:00:10,789 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-11-28 03:00:10,791 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-11-28 03:00:10,791 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-11-28 03:00:10,792 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-11-28 03:00:10,792 INFO L274 CegarLoopResult]: For program point L402(line 402) no Hoare annotation was computed. [2020-11-28 03:00:10,792 INFO L274 CegarLoopResult]: For program point L204(lines 204 400) no Hoare annotation was computed. [2020-11-28 03:00:10,792 INFO L274 CegarLoopResult]: For program point L72(lines 72 400) no Hoare annotation was computed. [2020-11-28 03:00:10,792 INFO L274 CegarLoopResult]: For program point L271(lines 271 400) no Hoare annotation was computed. [2020-11-28 03:00:10,792 INFO L274 CegarLoopResult]: For program point L139(lines 139 400) no Hoare annotation was computed. [2020-11-28 03:00:10,792 INFO L274 CegarLoopResult]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,793 INFO L274 CegarLoopResult]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,793 INFO L274 CegarLoopResult]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,793 INFO L274 CegarLoopResult]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,793 INFO L274 CegarLoopResult]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,793 INFO L274 CegarLoopResult]: For program point L371(lines 371 400) no Hoare annotation was computed. [2020-11-28 03:00:10,793 INFO L274 CegarLoopResult]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,794 INFO L274 CegarLoopResult]: For program point L107(lines 107 400) no Hoare annotation was computed. [2020-11-28 03:00:10,794 INFO L274 CegarLoopResult]: For program point L41(lines 41 400) no Hoare annotation was computed. [2020-11-28 03:00:10,794 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-11-28 03:00:10,794 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-11-28 03:00:10,794 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-11-28 03:00:10,794 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-11-28 03:00:10,794 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-11-28 03:00:10,795 INFO L274 CegarLoopResult]: For program point L405(line 405) no Hoare annotation was computed. [2020-11-28 03:00:10,795 INFO L274 CegarLoopResult]: For program point L339(lines 339 400) no Hoare annotation was computed. [2020-11-28 03:00:10,795 INFO L274 CegarLoopResult]: For program point L207(lines 207 400) no Hoare annotation was computed. [2020-11-28 03:00:10,795 INFO L274 CegarLoopResult]: For program point L75(lines 75 400) no Hoare annotation was computed. [2020-11-28 03:00:10,795 INFO L274 CegarLoopResult]: For program point L373(lines 373 400) no Hoare annotation was computed. [2020-11-28 03:00:10,795 INFO L274 CegarLoopResult]: For program point L241(lines 241 400) no Hoare annotation was computed. [2020-11-28 03:00:10,795 INFO L274 CegarLoopResult]: For program point L175(lines 175 400) no Hoare annotation was computed. [2020-11-28 03:00:10,796 INFO L274 CegarLoopResult]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,796 INFO L274 CegarLoopResult]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,796 INFO L274 CegarLoopResult]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,796 INFO L274 CegarLoopResult]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,796 INFO L274 CegarLoopResult]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,796 INFO L274 CegarLoopResult]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,797 INFO L274 CegarLoopResult]: For program point L275(lines 275 400) no Hoare annotation was computed. [2020-11-28 03:00:10,797 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-11-28 03:00:10,797 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-11-28 03:00:10,797 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-11-28 03:00:10,797 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-11-28 03:00:10,797 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-11-28 03:00:10,797 INFO L274 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2020-11-28 03:00:10,798 INFO L274 CegarLoopResult]: For program point L375(lines 375 400) no Hoare annotation was computed. [2020-11-28 03:00:10,798 INFO L274 CegarLoopResult]: For program point L309(lines 309 400) no Hoare annotation was computed. [2020-11-28 03:00:10,798 INFO L274 CegarLoopResult]: For program point L45(lines 45 400) no Hoare annotation was computed. [2020-11-28 03:00:10,798 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 03:00:10,798 INFO L274 CegarLoopResult]: For program point L343(lines 343 400) no Hoare annotation was computed. [2020-11-28 03:00:10,798 INFO L274 CegarLoopResult]: For program point L112(lines 112 400) no Hoare annotation was computed. [2020-11-28 03:00:10,798 INFO L274 CegarLoopResult]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,799 INFO L274 CegarLoopResult]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,799 INFO L274 CegarLoopResult]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,799 INFO L274 CegarLoopResult]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,799 INFO L274 CegarLoopResult]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,799 INFO L274 CegarLoopResult]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,799 INFO L274 CegarLoopResult]: For program point L278(lines 278 400) no Hoare annotation was computed. [2020-11-28 03:00:10,799 INFO L274 CegarLoopResult]: For program point L146(lines 146 400) no Hoare annotation was computed. [2020-11-28 03:00:10,801 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-11-28 03:00:10,801 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-11-28 03:00:10,801 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-11-28 03:00:10,802 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-11-28 03:00:10,802 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-11-28 03:00:10,802 INFO L274 CegarLoopResult]: For program point L411(line 411) no Hoare annotation was computed. [2020-11-28 03:00:10,802 INFO L274 CegarLoopResult]: For program point L213(lines 213 400) no Hoare annotation was computed. [2020-11-28 03:00:10,802 INFO L274 CegarLoopResult]: For program point L82(lines 82 400) no Hoare annotation was computed. [2020-11-28 03:00:10,803 INFO L274 CegarLoopResult]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,803 INFO L274 CegarLoopResult]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,803 INFO L274 CegarLoopResult]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,803 INFO L274 CegarLoopResult]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,804 INFO L274 CegarLoopResult]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,804 INFO L274 CegarLoopResult]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,804 INFO L274 CegarLoopResult]: For program point L347(lines 347 400) no Hoare annotation was computed. [2020-11-28 03:00:10,804 INFO L274 CegarLoopResult]: For program point L248(lines 248 400) no Hoare annotation was computed. [2020-11-28 03:00:10,804 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-11-28 03:00:10,804 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-11-28 03:00:10,804 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-11-28 03:00:10,805 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-11-28 03:00:10,805 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-11-28 03:00:10,805 INFO L274 CegarLoopResult]: For program point L414(line 414) no Hoare annotation was computed. [2020-11-28 03:00:10,805 INFO L274 CegarLoopResult]: For program point L183(lines 183 400) no Hoare annotation was computed. [2020-11-28 03:00:10,805 INFO L274 CegarLoopResult]: For program point L150(lines 150 400) no Hoare annotation was computed. [2020-11-28 03:00:10,805 INFO L274 CegarLoopResult]: For program point L382(lines 382 400) no Hoare annotation was computed. [2020-11-28 03:00:10,805 INFO L274 CegarLoopResult]: For program point L316(lines 316 400) no Hoare annotation was computed. [2020-11-28 03:00:10,806 INFO L274 CegarLoopResult]: For program point L283(lines 283 400) no Hoare annotation was computed. [2020-11-28 03:00:10,806 INFO L274 CegarLoopResult]: For program point L118(lines 118 400) no Hoare annotation was computed. [2020-11-28 03:00:10,807 INFO L274 CegarLoopResult]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2020-11-28 03:00:10,807 INFO L274 CegarLoopResult]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,808 INFO L274 CegarLoopResult]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,808 INFO L274 CegarLoopResult]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,809 INFO L274 CegarLoopResult]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,809 INFO L274 CegarLoopResult]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,809 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:00:10,810 INFO L274 CegarLoopResult]: For program point L218(lines 218 400) no Hoare annotation was computed. [2020-11-28 03:00:10,810 INFO L274 CegarLoopResult]: For program point L53(lines 53 400) no Hoare annotation was computed. [2020-11-28 03:00:10,810 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-11-28 03:00:10,810 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-11-28 03:00:10,810 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-11-28 03:00:10,810 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-11-28 03:00:10,811 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-11-28 03:00:10,811 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-11-28 03:00:10,811 INFO L274 CegarLoopResult]: For program point L154(lines 154 400) no Hoare annotation was computed. [2020-11-28 03:00:10,813 INFO L270 CegarLoopResult]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse3 (= ~a20~0 1)) (.cse4 (<= ~a7~0 0)) (.cse0 (<= ~a8~0 14)) (.cse2 (= ~a21~0 1)) (.cse1 (= ~a7~0 1)) (.cse6 (<= ~a16~0 5)) (.cse5 (<= ~a20~0 0))) (or (and .cse0 .cse1 (<= ~a21~0 0)) (and .cse2 .cse0 .cse3 (<= 5 ~a16~0)) (and .cse2 (<= ~a16~0 4) .cse3 (= ~a17~0 1)) (and .cse2 .cse4 .cse3) (and .cse2 .cse4 .cse5) (and .cse0 .cse2 .cse6 .cse5) (and .cse2 .cse1 .cse6 .cse5))) [2020-11-28 03:00:10,813 INFO L274 CegarLoopResult]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,813 INFO L274 CegarLoopResult]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,813 INFO L274 CegarLoopResult]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,814 INFO L274 CegarLoopResult]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,814 INFO L274 CegarLoopResult]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,814 INFO L274 CegarLoopResult]: For program point L188(lines 188 400) no Hoare annotation was computed. [2020-11-28 03:00:10,814 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-11-28 03:00:10,814 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-11-28 03:00:10,814 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-11-28 03:00:10,814 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-11-28 03:00:10,815 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-11-28 03:00:10,815 INFO L274 CegarLoopResult]: For program point L387(lines 387 400) no Hoare annotation was computed. [2020-11-28 03:00:10,815 INFO L274 CegarLoopResult]: For program point L288(lines 288 400) no Hoare annotation was computed. [2020-11-28 03:00:10,815 INFO L274 CegarLoopResult]: For program point L255(lines 255 400) no Hoare annotation was computed. [2020-11-28 03:00:10,815 INFO L274 CegarLoopResult]: For program point L90(lines 90 400) no Hoare annotation was computed. [2020-11-28 03:00:10,815 INFO L274 CegarLoopResult]: For program point L355(lines 355 400) no Hoare annotation was computed. [2020-11-28 03:00:10,815 INFO L274 CegarLoopResult]: For program point L322(lines 322 400) no Hoare annotation was computed. [2020-11-28 03:00:10,816 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:00:10,816 INFO L274 CegarLoopResult]: For program point L124(lines 124 400) no Hoare annotation was computed. [2020-11-28 03:00:10,816 INFO L277 CegarLoopResult]: At program point L587(lines 587 604) the Hoare annotation is: true [2020-11-28 03:00:10,816 INFO L274 CegarLoopResult]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,816 INFO L274 CegarLoopResult]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,816 INFO L274 CegarLoopResult]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,816 INFO L274 CegarLoopResult]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,817 INFO L274 CegarLoopResult]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,817 INFO L274 CegarLoopResult]: For program point L224(lines 224 400) no Hoare annotation was computed. [2020-11-28 03:00:10,817 INFO L274 CegarLoopResult]: For program point L158(lines 158 400) no Hoare annotation was computed. [2020-11-28 03:00:10,817 INFO L274 CegarLoopResult]: For program point L59(lines 59 400) no Hoare annotation was computed. [2020-11-28 03:00:10,817 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-11-28 03:00:10,817 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-11-28 03:00:10,817 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-11-28 03:00:10,818 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-11-28 03:00:10,818 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-11-28 03:00:10,818 INFO L274 CegarLoopResult]: For program point L94(lines 94 400) no Hoare annotation was computed. [2020-11-28 03:00:10,818 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:00:10,818 INFO L274 CegarLoopResult]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,818 INFO L274 CegarLoopResult]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,818 INFO L274 CegarLoopResult]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,819 INFO L274 CegarLoopResult]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,819 INFO L274 CegarLoopResult]: For program point L392(lines 392 400) no Hoare annotation was computed. [2020-11-28 03:00:10,819 INFO L274 CegarLoopResult]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,819 INFO L274 CegarLoopResult]: For program point L326(lines 326 400) no Hoare annotation was computed. [2020-11-28 03:00:10,819 INFO L274 CegarLoopResult]: For program point L260(lines 260 400) no Hoare annotation was computed. [2020-11-28 03:00:10,819 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-11-28 03:00:10,819 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-11-28 03:00:10,820 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-11-28 03:00:10,820 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-11-28 03:00:10,820 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-11-28 03:00:10,820 INFO L274 CegarLoopResult]: For program point L228(lines 228 400) no Hoare annotation was computed. [2020-11-28 03:00:10,820 INFO L274 CegarLoopResult]: For program point L162(lines 162 400) no Hoare annotation was computed. [2020-11-28 03:00:10,820 INFO L274 CegarLoopResult]: For program point L129(lines 129 400) no Hoare annotation was computed. [2020-11-28 03:00:10,820 INFO L274 CegarLoopResult]: For program point L328(lines 328 400) no Hoare annotation was computed. [2020-11-28 03:00:10,820 INFO L274 CegarLoopResult]: For program point L196(lines 196 400) no Hoare annotation was computed. [2020-11-28 03:00:10,821 INFO L274 CegarLoopResult]: For program point L64(lines 64 400) no Hoare annotation was computed. [2020-11-28 03:00:10,821 INFO L274 CegarLoopResult]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,821 INFO L270 CegarLoopResult]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse3 (= ~a20~0 1)) (.cse4 (<= ~a7~0 0)) (.cse0 (<= ~a8~0 14)) (.cse2 (= ~a21~0 1)) (.cse1 (= ~a7~0 1)) (.cse6 (<= ~a16~0 5)) (.cse5 (<= ~a20~0 0))) (or (and .cse0 .cse1 (<= ~a21~0 0)) (and .cse2 .cse0 .cse3 (<= 5 ~a16~0)) (and .cse2 (<= ~a16~0 4) .cse3 (= ~a17~0 1)) (and .cse2 .cse4 .cse3) (and .cse2 .cse4 .cse5) (and .cse0 .cse2 .cse6 .cse5) (and .cse2 .cse1 .cse6 .cse5))) [2020-11-28 03:00:10,821 INFO L274 CegarLoopResult]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,821 INFO L274 CegarLoopResult]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,822 INFO L274 CegarLoopResult]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,822 INFO L274 CegarLoopResult]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,822 INFO L274 CegarLoopResult]: For program point L296(lines 296 400) no Hoare annotation was computed. [2020-11-28 03:00:10,822 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:00:10,822 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-28 03:00:10,822 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-11-28 03:00:10,822 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-11-28 03:00:10,823 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-11-28 03:00:10,823 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-11-28 03:00:10,823 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-11-28 03:00:10,823 INFO L274 CegarLoopResult]: For program point L363(lines 363 400) no Hoare annotation was computed. [2020-11-28 03:00:10,823 INFO L274 CegarLoopResult]: For program point L199(lines 199 400) no Hoare annotation was computed. [2020-11-28 03:00:10,823 INFO L274 CegarLoopResult]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,823 INFO L274 CegarLoopResult]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,824 INFO L274 CegarLoopResult]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,824 INFO L274 CegarLoopResult]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,824 INFO L274 CegarLoopResult]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2020-11-28 03:00:10,824 INFO L274 CegarLoopResult]: For program point L365(lines 365 400) no Hoare annotation was computed. [2020-11-28 03:00:10,824 INFO L274 CegarLoopResult]: For program point L266(lines 266 400) no Hoare annotation was computed. [2020-11-28 03:00:10,824 INFO L274 CegarLoopResult]: For program point L233(lines 233 400) no Hoare annotation was computed. [2020-11-28 03:00:10,824 INFO L274 CegarLoopResult]: For program point L134(lines 134 400) no Hoare annotation was computed. [2020-11-28 03:00:10,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:00:10 BoogieIcfgContainer [2020-11-28 03:00:10,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:00:10,864 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:00:10,864 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:00:10,877 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:00:10,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:54" (3/4) ... [2020-11-28 03:00:10,881 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:00:10,905 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 03:00:10,913 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:00:10,915 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:00:10,916 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:00:11,084 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b09864ed-25c3-4404-a189-d54b1d54fd93/bin/uautomizer/witness.graphml [2020-11-28 03:00:11,084 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:00:11,085 INFO L168 Benchmark]: Toolchain (without parser) took 19358.68 ms. Allocated memory was 92.3 MB in the beginning and 373.3 MB in the end (delta: 281.0 MB). Free memory was 60.6 MB in the beginning and 240.9 MB in the end (delta: -180.3 MB). Peak memory consumption was 101.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:11,086 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory was 50.6 MB in the beginning and 50.6 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:00:11,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.72 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 60.3 MB in the beginning and 95.1 MB in the end (delta: -34.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:11,087 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.06 ms. Allocated memory is still 134.2 MB. Free memory was 94.3 MB in the beginning and 88.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:11,087 INFO L168 Benchmark]: Boogie Preprocessor took 83.38 ms. Allocated memory is still 134.2 MB. Free memory was 88.8 MB in the beginning and 84.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:11,087 INFO L168 Benchmark]: RCFGBuilder took 1539.03 ms. Allocated memory is still 134.2 MB. Free memory was 84.7 MB in the beginning and 101.4 MB in the end (delta: -16.7 MB). Peak memory consumption was 62.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:11,088 INFO L168 Benchmark]: TraceAbstraction took 16711.25 ms. Allocated memory was 134.2 MB in the beginning and 373.3 MB in the end (delta: 239.1 MB). Free memory was 101.4 MB in the beginning and 255.6 MB in the end (delta: -154.2 MB). Peak memory consumption was 84.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:11,088 INFO L168 Benchmark]: Witness Printer took 220.65 ms. Allocated memory is still 373.3 MB. Free memory was 255.6 MB in the beginning and 240.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:00:11,091 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory was 50.6 MB in the beginning and 50.6 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 718.72 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 60.3 MB in the beginning and 95.1 MB in the end (delta: -34.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.06 ms. Allocated memory is still 134.2 MB. Free memory was 94.3 MB in the beginning and 88.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.38 ms. Allocated memory is still 134.2 MB. Free memory was 88.8 MB in the beginning and 84.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1539.03 ms. Allocated memory is still 134.2 MB. Free memory was 84.7 MB in the beginning and 101.4 MB in the end (delta: -16.7 MB). Peak memory consumption was 62.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16711.25 ms. Allocated memory was 134.2 MB in the beginning and 373.3 MB in the end (delta: 239.1 MB). Free memory was 101.4 MB in the beginning and 255.6 MB in the end (delta: -154.2 MB). Peak memory consumption was 84.8 MB. Max. memory is 16.1 GB. * Witness Printer took 220.65 ms. Allocated memory is still 373.3 MB. Free memory was 255.6 MB in the beginning and 240.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((a8 <= 14 && a7 == 1) && a21 <= 0) || (((a21 == 1 && a8 <= 14) && a20 == 1) && 5 <= a16)) || (((a21 == 1 && a16 <= 4) && a20 == 1) && a17 == 1)) || ((a21 == 1 && a7 <= 0) && a20 == 1)) || ((a21 == 1 && a7 <= 0) && a20 <= 0)) || (((a8 <= 14 && a21 == 1) && a16 <= 5) && a20 <= 0)) || (((a21 == 1 && a7 == 1) && a16 <= 5) && a20 <= 0) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((((((a8 <= 14 && a7 == 1) && a21 <= 0) || (((a21 == 1 && a8 <= 14) && a20 == 1) && 5 <= a16)) || (((a21 == 1 && a16 <= 4) && a20 == 1) && a17 == 1)) || ((a21 == 1 && a7 <= 0) && a20 == 1)) || ((a21 == 1 && a7 <= 0) && a20 <= 0)) || (((a8 <= 14 && a21 == 1) && a16 <= 5) && a20 <= 0)) || (((a21 == 1 && a7 == 1) && a16 <= 5) && a20 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.1s, OverallIterations: 14, TraceHistogramMax: 9, AutomataDifference: 10.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1207 SDtfs, 2010 SDslu, 80 SDs, 0 SdLazy, 4806 SolverSat, 793 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 829 GetRequests, 801 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2886occurred 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: 0.7s AutomataMinimizationTime, 14 MinimizatonAttempts, 917 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 55 NumberOfFragments, 167 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1644 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 190 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 3400 NumberOfCodeBlocks, 3400 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3382 ConstructedInterpolants, 0 QuantifiedInterpolants, 1281362 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1701 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 18 InterpolantComputations, 14 PerfectInterpolantSequences, 3835/3859 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...