./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3e6d281b-8768-4c79-8819-ea28399bddd5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3e6d281b-8768-4c79-8819-ea28399bddd5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3e6d281b-8768-4c79-8819-ea28399bddd5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3e6d281b-8768-4c79-8819-ea28399bddd5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label00.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3e6d281b-8768-4c79-8819-ea28399bddd5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3e6d281b-8768-4c79-8819-ea28399bddd5/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 785a7f7444547118219ac2dc565afc7f15fbca51 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 03:00:42,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:00:42,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:00:42,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:00:42,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:00:42,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:00:42,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:00:42,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:00:42,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:00:42,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:00:42,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:00:42,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:00:42,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:00:42,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:00:42,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:00:42,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:00:42,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:00:42,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:00:42,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:00:42,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:00:42,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:00:42,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:00:42,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:00:42,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:00:42,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:00:42,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:00:42,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:00:42,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:00:42,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:00:42,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:00:42,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:00:42,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:00:42,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:00:42,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:00:42,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:00:42,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:00:42,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:00:42,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:00:42,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:00:42,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:00:42,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:00:42,413 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3e6d281b-8768-4c79-8819-ea28399bddd5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 03:00:42,445 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:00:42,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:00:42,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:00:42,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:00:42,459 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 03:00:42,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:00:42,459 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 03:00:42,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:00:42,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 03:00:42,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:00:42,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 03:00:42,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 03:00:42,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 03:00:42,461 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 03:00:42,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:00:42,462 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:00:42,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 03:00:42,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:00:42,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 03:00:42,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 03:00:42,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 03:00:42,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 03:00:42,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:00:42,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 03:00:42,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 03:00:42,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 03:00:42,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 03:00:42,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 03:00:42,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_3e6d281b-8768-4c79-8819-ea28399bddd5/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(__VERIFIER_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 -> 785a7f7444547118219ac2dc565afc7f15fbca51 [2019-11-20 03:00:42,671 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:00:42,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:00:42,694 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:00:42,696 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:00:42,696 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:00:42,697 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3e6d281b-8768-4c79-8819-ea28399bddd5/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label00.c [2019-11-20 03:00:42,773 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3e6d281b-8768-4c79-8819-ea28399bddd5/bin/uautomizer/data/1d3245224/3a764bb439d040969346a8ee80f8cb04/FLAG750cf6952 [2019-11-20 03:00:43,358 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:00:43,359 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3e6d281b-8768-4c79-8819-ea28399bddd5/sv-benchmarks/c/eca-rers2012/Problem01_label00.c [2019-11-20 03:00:43,373 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3e6d281b-8768-4c79-8819-ea28399bddd5/bin/uautomizer/data/1d3245224/3a764bb439d040969346a8ee80f8cb04/FLAG750cf6952 [2019-11-20 03:00:43,697 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3e6d281b-8768-4c79-8819-ea28399bddd5/bin/uautomizer/data/1d3245224/3a764bb439d040969346a8ee80f8cb04 [2019-11-20 03:00:43,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:00:43,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:00:43,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:00:43,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:00:43,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:00:43,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:00:43" (1/1) ... [2019-11-20 03:00:43,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54b1aaef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:43, skipping insertion in model container [2019-11-20 03:00:43,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:00:43" (1/1) ... [2019-11-20 03:00:43,731 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:00:43,801 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:00:44,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:00:44,349 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:00:44,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:00:44,514 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:00:44,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:44 WrapperNode [2019-11-20 03:00:44,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:00:44,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:00:44,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:00:44,517 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:00:44,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:44" (1/1) ... [2019-11-20 03:00:44,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:44" (1/1) ... [2019-11-20 03:00:44,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:00:44,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:00:44,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:00:44,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:00:44,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:44" (1/1) ... [2019-11-20 03:00:44,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:44" (1/1) ... [2019-11-20 03:00:44,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:44" (1/1) ... [2019-11-20 03:00:44,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:44" (1/1) ... [2019-11-20 03:00:44,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:44" (1/1) ... [2019-11-20 03:00:44,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:44" (1/1) ... [2019-11-20 03:00:44,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:44" (1/1) ... [2019-11-20 03:00:44,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:00:44,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:00:44,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:00:44,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:00:44,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e6d281b-8768-4c79-8819-ea28399bddd5/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 [2019-11-20 03:00:44,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:00:44,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:00:46,550 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:00:46,550 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 03:00:46,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:00:46 BoogieIcfgContainer [2019-11-20 03:00:46,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:00:46,554 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 03:00:46,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 03:00:46,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 03:00:46,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 03:00:43" (1/3) ... [2019-11-20 03:00:46,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cafada1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:00:46, skipping insertion in model container [2019-11-20 03:00:46,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:00:44" (2/3) ... [2019-11-20 03:00:46,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cafada1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:00:46, skipping insertion in model container [2019-11-20 03:00:46,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:00:46" (3/3) ... [2019-11-20 03:00:46,561 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label00.c [2019-11-20 03:00:46,575 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 03:00:46,584 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 03:00:46,596 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 03:00:46,639 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 03:00:46,639 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 03:00:46,640 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 03:00:46,640 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 03:00:46,640 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 03:00:46,641 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 03:00:46,641 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 03:00:46,642 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 03:00:46,672 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-11-20 03:00:46,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-11-20 03:00:46,693 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:46,694 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:46,695 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:00:46,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:46,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1766677921, now seen corresponding path program 1 times [2019-11-20 03:00:46,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:00:46,713 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072361480] [2019-11-20 03:00:46,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:00:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:47,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:00:47,300 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072361480] [2019-11-20 03:00:47,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:47,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 03:00:47,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127155489] [2019-11-20 03:00:47,311 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 03:00:47,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:00:47,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 03:00:47,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 03:00:47,328 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 4 states. [2019-11-20 03:00:49,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:49,065 INFO L93 Difference]: Finished difference Result 662 states and 1178 transitions. [2019-11-20 03:00:49,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 03:00:49,068 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 108 [2019-11-20 03:00:49,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:49,094 INFO L225 Difference]: With dead ends: 662 [2019-11-20 03:00:49,095 INFO L226 Difference]: Without dead ends: 397 [2019-11-20 03:00:49,099 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 03:00:49,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-11-20 03:00:49,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 266. [2019-11-20 03:00:49,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2019-11-20 03:00:49,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2019-11-20 03:00:49,170 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 108 [2019-11-20 03:00:49,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:49,171 INFO L462 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2019-11-20 03:00:49,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 03:00:49,171 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2019-11-20 03:00:49,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-11-20 03:00:49,174 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:49,175 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:49,175 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:00:49,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:49,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1731030898, now seen corresponding path program 1 times [2019-11-20 03:00:49,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:00:49,176 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137398185] [2019-11-20 03:00:49,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:00:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:49,286 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:00:49,287 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137398185] [2019-11-20 03:00:49,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:49,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 03:00:49,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902073826] [2019-11-20 03:00:49,289 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 03:00:49,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:00:49,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 03:00:49,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 03:00:49,291 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand 4 states. [2019-11-20 03:00:50,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:50,290 INFO L93 Difference]: Finished difference Result 1054 states and 1512 transitions. [2019-11-20 03:00:50,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 03:00:50,291 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 114 [2019-11-20 03:00:50,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:50,299 INFO L225 Difference]: With dead ends: 1054 [2019-11-20 03:00:50,299 INFO L226 Difference]: Without dead ends: 790 [2019-11-20 03:00:50,301 INFO L630 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 [2019-11-20 03:00:50,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-11-20 03:00:50,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-11-20 03:00:50,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-11-20 03:00:50,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1068 transitions. [2019-11-20 03:00:50,413 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1068 transitions. Word has length 114 [2019-11-20 03:00:50,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:50,413 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 1068 transitions. [2019-11-20 03:00:50,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 03:00:50,414 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1068 transitions. [2019-11-20 03:00:50,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-11-20 03:00:50,420 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:50,420 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:50,421 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:00:50,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:50,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1128519054, now seen corresponding path program 1 times [2019-11-20 03:00:50,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:00:50,422 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818128819] [2019-11-20 03:00:50,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:00:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:50,697 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:00:50,697 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818128819] [2019-11-20 03:00:50,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:50,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 03:00:50,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649565360] [2019-11-20 03:00:50,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 03:00:50,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:00:50,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 03:00:50,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 03:00:50,700 INFO L87 Difference]: Start difference. First operand 790 states and 1068 transitions. Second operand 4 states. [2019-11-20 03:00:51,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:51,551 INFO L93 Difference]: Finished difference Result 1578 states and 2134 transitions. [2019-11-20 03:00:51,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 03:00:51,554 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 115 [2019-11-20 03:00:51,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:51,560 INFO L225 Difference]: With dead ends: 1578 [2019-11-20 03:00:51,560 INFO L226 Difference]: Without dead ends: 790 [2019-11-20 03:00:51,562 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 03:00:51,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-11-20 03:00:51,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-11-20 03:00:51,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-11-20 03:00:51,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 994 transitions. [2019-11-20 03:00:51,587 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 994 transitions. Word has length 115 [2019-11-20 03:00:51,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:51,588 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 994 transitions. [2019-11-20 03:00:51,588 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 03:00:51,588 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 994 transitions. [2019-11-20 03:00:51,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-11-20 03:00:51,592 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:51,594 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:51,594 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:00:51,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:51,595 INFO L82 PathProgramCache]: Analyzing trace with hash -544120587, now seen corresponding path program 1 times [2019-11-20 03:00:51,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:00:51,596 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091366236] [2019-11-20 03:00:51,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:00:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:51,681 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-20 03:00:51,681 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091366236] [2019-11-20 03:00:51,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:51,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 03:00:51,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461595214] [2019-11-20 03:00:51,683 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 03:00:51,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:00:51,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 03:00:51,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:00:51,684 INFO L87 Difference]: Start difference. First operand 790 states and 994 transitions. Second operand 3 states. [2019-11-20 03:00:52,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:52,231 INFO L93 Difference]: Finished difference Result 2233 states and 2809 transitions. [2019-11-20 03:00:52,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 03:00:52,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-11-20 03:00:52,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:52,242 INFO L225 Difference]: With dead ends: 2233 [2019-11-20 03:00:52,243 INFO L226 Difference]: Without dead ends: 1445 [2019-11-20 03:00:52,245 INFO L630 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 [2019-11-20 03:00:52,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2019-11-20 03:00:52,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1183. [2019-11-20 03:00:52,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1183 states. [2019-11-20 03:00:52,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1429 transitions. [2019-11-20 03:00:52,302 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1429 transitions. Word has length 126 [2019-11-20 03:00:52,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:52,302 INFO L462 AbstractCegarLoop]: Abstraction has 1183 states and 1429 transitions. [2019-11-20 03:00:52,303 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 03:00:52,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1429 transitions. [2019-11-20 03:00:52,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-11-20 03:00:52,310 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:52,310 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:52,310 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:00:52,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:52,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1267766409, now seen corresponding path program 1 times [2019-11-20 03:00:52,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:00:52,312 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218535456] [2019-11-20 03:00:52,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:00:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:52,542 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-20 03:00:52,543 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218535456] [2019-11-20 03:00:52,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:52,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 03:00:52,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663964982] [2019-11-20 03:00:52,545 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 03:00:52,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:00:52,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 03:00:52,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 03:00:52,546 INFO L87 Difference]: Start difference. First operand 1183 states and 1429 transitions. Second operand 4 states. [2019-11-20 03:00:53,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:53,330 INFO L93 Difference]: Finished difference Result 2500 states and 3010 transitions. [2019-11-20 03:00:53,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 03:00:53,331 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 134 [2019-11-20 03:00:53,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:53,340 INFO L225 Difference]: With dead ends: 2500 [2019-11-20 03:00:53,340 INFO L226 Difference]: Without dead ends: 1319 [2019-11-20 03:00:53,344 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:00:53,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2019-11-20 03:00:53,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1314. [2019-11-20 03:00:53,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2019-11-20 03:00:53,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1566 transitions. [2019-11-20 03:00:53,385 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1566 transitions. Word has length 134 [2019-11-20 03:00:53,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:53,387 INFO L462 AbstractCegarLoop]: Abstraction has 1314 states and 1566 transitions. [2019-11-20 03:00:53,387 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 03:00:53,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1566 transitions. [2019-11-20 03:00:53,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-11-20 03:00:53,391 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:53,391 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:53,391 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:00:53,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:53,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1620959425, now seen corresponding path program 1 times [2019-11-20 03:00:53,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:00:53,392 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769037720] [2019-11-20 03:00:53,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:00:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:53,491 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-20 03:00:53,491 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769037720] [2019-11-20 03:00:53,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:53,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 03:00:53,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439593707] [2019-11-20 03:00:53,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 03:00:53,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:00:53,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:00:53,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:00:53,494 INFO L87 Difference]: Start difference. First operand 1314 states and 1566 transitions. Second operand 5 states. [2019-11-20 03:00:54,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:54,825 INFO L93 Difference]: Finished difference Result 2626 states and 3160 transitions. [2019-11-20 03:00:54,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 03:00:54,826 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2019-11-20 03:00:54,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:54,835 INFO L225 Difference]: With dead ends: 2626 [2019-11-20 03:00:54,835 INFO L226 Difference]: Without dead ends: 1445 [2019-11-20 03:00:54,837 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:00:54,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2019-11-20 03:00:54,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1445. [2019-11-20 03:00:54,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2019-11-20 03:00:54,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1691 transitions. [2019-11-20 03:00:54,882 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1691 transitions. Word has length 138 [2019-11-20 03:00:54,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:54,884 INFO L462 AbstractCegarLoop]: Abstraction has 1445 states and 1691 transitions. [2019-11-20 03:00:54,884 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 03:00:54,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1691 transitions. [2019-11-20 03:00:54,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-11-20 03:00:54,888 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:54,888 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:54,888 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:00:54,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:54,893 INFO L82 PathProgramCache]: Analyzing trace with hash -633054500, now seen corresponding path program 1 times [2019-11-20 03:00:54,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:00:54,894 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475756379] [2019-11-20 03:00:54,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:00:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:54,970 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-20 03:00:54,971 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475756379] [2019-11-20 03:00:54,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:54,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 03:00:54,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97218025] [2019-11-20 03:00:54,972 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 03:00:54,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:00:54,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 03:00:54,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:00:54,982 INFO L87 Difference]: Start difference. First operand 1445 states and 1691 transitions. Second operand 3 states. [2019-11-20 03:00:55,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:55,608 INFO L93 Difference]: Finished difference Result 3281 states and 3857 transitions. [2019-11-20 03:00:55,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 03:00:55,609 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2019-11-20 03:00:55,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:55,619 INFO L225 Difference]: With dead ends: 3281 [2019-11-20 03:00:55,619 INFO L226 Difference]: Without dead ends: 1707 [2019-11-20 03:00:55,622 INFO L630 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 [2019-11-20 03:00:55,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2019-11-20 03:00:55,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1445. [2019-11-20 03:00:55,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2019-11-20 03:00:55,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1559 transitions. [2019-11-20 03:00:55,658 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1559 transitions. Word has length 141 [2019-11-20 03:00:55,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:55,659 INFO L462 AbstractCegarLoop]: Abstraction has 1445 states and 1559 transitions. [2019-11-20 03:00:55,659 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 03:00:55,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1559 transitions. [2019-11-20 03:00:55,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-11-20 03:00:55,664 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:55,664 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:00:55,664 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:00:55,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:55,665 INFO L82 PathProgramCache]: Analyzing trace with hash 728477792, now seen corresponding path program 1 times [2019-11-20 03:00:55,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:00:55,665 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865482959] [2019-11-20 03:00:55,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:00:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:55,760 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-20 03:00:55,760 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865482959] [2019-11-20 03:00:55,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:00:55,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 03:00:55,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715424753] [2019-11-20 03:00:55,762 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 03:00:55,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:00:55,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 03:00:55,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:00:55,763 INFO L87 Difference]: Start difference. First operand 1445 states and 1559 transitions. Second operand 3 states. [2019-11-20 03:00:56,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:56,295 INFO L93 Difference]: Finished difference Result 3543 states and 3847 transitions. [2019-11-20 03:00:56,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 03:00:56,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2019-11-20 03:00:56,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:56,308 INFO L225 Difference]: With dead ends: 3543 [2019-11-20 03:00:56,308 INFO L226 Difference]: Without dead ends: 2231 [2019-11-20 03:00:56,311 INFO L630 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 [2019-11-20 03:00:56,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2019-11-20 03:00:56,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1838. [2019-11-20 03:00:56,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2019-11-20 03:00:56,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 1972 transitions. [2019-11-20 03:00:56,356 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 1972 transitions. Word has length 156 [2019-11-20 03:00:56,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:56,357 INFO L462 AbstractCegarLoop]: Abstraction has 1838 states and 1972 transitions. [2019-11-20 03:00:56,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 03:00:56,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 1972 transitions. [2019-11-20 03:00:56,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-11-20 03:00:56,362 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:00:56,362 INFO L410 BasicCegarLoop]: trace histogram [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, 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] [2019-11-20 03:00:56,363 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 03:00:56,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:00:56,363 INFO L82 PathProgramCache]: Analyzing trace with hash -519802284, now seen corresponding path program 1 times [2019-11-20 03:00:56,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:00:56,364 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205069991] [2019-11-20 03:00:56,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:00:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:56,595 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 97 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 03:00:56,596 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205069991] [2019-11-20 03:00:56,600 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711832279] [2019-11-20 03:00:56,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3e6d281b-8768-4c79-8819-ea28399bddd5/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 [2019-11-20 03:00:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:00:56,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 03:00:56,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:00:56,878 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-11-20 03:00:56,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 03:00:56,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2019-11-20 03:00:56,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122343477] [2019-11-20 03:00:56,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 03:00:56,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:00:56,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 03:00:56,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-20 03:00:56,881 INFO L87 Difference]: Start difference. First operand 1838 states and 1972 transitions. Second operand 3 states. [2019-11-20 03:00:57,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:00:57,399 INFO L93 Difference]: Finished difference Result 1969 states and 2119 transitions. [2019-11-20 03:00:57,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 03:00:57,399 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2019-11-20 03:00:57,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:00:57,400 INFO L225 Difference]: With dead ends: 1969 [2019-11-20 03:00:57,400 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 03:00:57,403 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-20 03:00:57,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 03:00:57,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 03:00:57,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 03:00:57,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 03:00:57,404 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 185 [2019-11-20 03:00:57,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:00:57,404 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 03:00:57,405 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 03:00:57,405 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 03:00:57,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 03:00:57,605 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 03:00:57,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 03:00:57,808 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 23 [2019-11-20 03:00:57,904 INFO L444 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-11-20 03:00:57,904 INFO L444 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-11-20 03:00:57,904 INFO L444 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,904 INFO L444 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,904 INFO L444 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,904 INFO L444 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,904 INFO L444 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,905 INFO L444 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,905 INFO L444 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-11-20 03:00:57,905 INFO L444 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-11-20 03:00:57,905 INFO L444 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2019-11-20 03:00:57,905 INFO L444 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2019-11-20 03:00:57,905 INFO L444 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2019-11-20 03:00:57,905 INFO L444 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2019-11-20 03:00:57,905 INFO L444 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2019-11-20 03:00:57,905 INFO L444 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2019-11-20 03:00:57,905 INFO L444 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-11-20 03:00:57,906 INFO L444 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-11-20 03:00:57,906 INFO L444 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,906 INFO L444 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,906 INFO L444 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,906 INFO L444 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,906 INFO L444 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,906 INFO L444 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,906 INFO L444 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-11-20 03:00:57,906 INFO L444 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-11-20 03:00:57,907 INFO L444 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2019-11-20 03:00:57,907 INFO L444 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2019-11-20 03:00:57,907 INFO L444 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2019-11-20 03:00:57,907 INFO L444 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2019-11-20 03:00:57,907 INFO L444 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2019-11-20 03:00:57,907 INFO L444 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2019-11-20 03:00:57,907 INFO L444 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-11-20 03:00:57,907 INFO L444 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-11-20 03:00:57,907 INFO L444 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-11-20 03:00:57,907 INFO L444 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-11-20 03:00:57,908 INFO L444 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-11-20 03:00:57,908 INFO L444 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-11-20 03:00:57,908 INFO L444 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2019-11-20 03:00:57,908 INFO L444 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,908 INFO L444 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,908 INFO L444 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,908 INFO L444 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,908 INFO L444 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,908 INFO L444 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-11-20 03:00:57,908 INFO L444 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-11-20 03:00:57,909 INFO L444 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2019-11-20 03:00:57,909 INFO L444 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2019-11-20 03:00:57,909 INFO L444 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2019-11-20 03:00:57,909 INFO L444 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2019-11-20 03:00:57,909 INFO L444 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2019-11-20 03:00:57,909 INFO L444 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2019-11-20 03:00:57,909 INFO L444 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-11-20 03:00:57,910 INFO L440 ceAbstractionStarter]: At program point L574(lines 30 575) the Hoare annotation is: (let ((.cse0 (= 1 ~a7~0)) (.cse2 (= ~a17~0 1)) (.cse1 (not (= ~a16~0 5)))) (or (= ~a16~0 4) (and .cse0 .cse1) (and .cse0 (<= ~a21~0 0) .cse2) (and .cse2 (= ~a21~0 1) .cse1) (not (= ~a8~0 13)))) [2019-11-20 03:00:57,910 INFO L444 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,910 INFO L444 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,910 INFO L444 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,910 INFO L444 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,910 INFO L444 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,910 INFO L444 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-11-20 03:00:57,910 INFO L444 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2019-11-20 03:00:57,919 INFO L444 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2019-11-20 03:00:57,919 INFO L444 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2019-11-20 03:00:57,919 INFO L444 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2019-11-20 03:00:57,919 INFO L444 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2019-11-20 03:00:57,920 INFO L444 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-11-20 03:00:57,920 INFO L444 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-11-20 03:00:57,920 INFO L444 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-11-20 03:00:57,920 INFO L444 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-11-20 03:00:57,920 INFO L444 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-11-20 03:00:57,920 INFO L444 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-11-20 03:00:57,921 INFO L444 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-11-20 03:00:57,921 INFO L447 ceAbstractionStarter]: At program point L577(lines 577 594) the Hoare annotation is: true [2019-11-20 03:00:57,921 INFO L444 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,921 INFO L444 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,921 INFO L444 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,921 INFO L444 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,922 INFO L444 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,922 INFO L444 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-11-20 03:00:57,922 INFO L444 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-11-20 03:00:57,922 INFO L444 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-11-20 03:00:57,922 INFO L444 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2019-11-20 03:00:57,923 INFO L444 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2019-11-20 03:00:57,923 INFO L444 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2019-11-20 03:00:57,923 INFO L444 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2019-11-20 03:00:57,923 INFO L444 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2019-11-20 03:00:57,923 INFO L444 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-11-20 03:00:57,923 INFO L444 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,924 INFO L444 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,924 INFO L444 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,924 INFO L444 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,924 INFO L444 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-11-20 03:00:57,924 INFO L444 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,924 INFO L444 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-11-20 03:00:57,925 INFO L444 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-11-20 03:00:57,925 INFO L444 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2019-11-20 03:00:57,925 INFO L444 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2019-11-20 03:00:57,925 INFO L444 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2019-11-20 03:00:57,925 INFO L444 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2019-11-20 03:00:57,925 INFO L444 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2019-11-20 03:00:57,926 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 03:00:57,926 INFO L444 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-11-20 03:00:57,926 INFO L444 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-11-20 03:00:57,926 INFO L444 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-11-20 03:00:57,926 INFO L444 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-11-20 03:00:57,926 INFO L444 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-11-20 03:00:57,927 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-11-20 03:00:57,927 INFO L444 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,928 INFO L440 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= 1 ~a7~0)) (.cse2 (= ~a17~0 1)) (.cse1 (not (= ~a16~0 5)))) (or (= ~a16~0 4) (and .cse0 .cse1) (and .cse0 (<= ~a21~0 0) .cse2) (and .cse2 (= ~a21~0 1) .cse1) (not (= ~a8~0 13)))) [2019-11-20 03:00:57,929 INFO L444 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,929 INFO L444 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,929 INFO L444 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,929 INFO L444 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,929 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-11-20 03:00:57,930 INFO L444 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2019-11-20 03:00:57,930 INFO L444 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2019-11-20 03:00:57,930 INFO L444 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2019-11-20 03:00:57,930 INFO L444 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2019-11-20 03:00:57,931 INFO L444 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2019-11-20 03:00:57,931 INFO L444 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-11-20 03:00:57,934 INFO L444 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-11-20 03:00:57,934 INFO L444 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,934 INFO L444 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,935 INFO L444 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,935 INFO L444 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,935 INFO L444 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,935 INFO L444 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-11-20 03:00:57,935 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 03:00:57,936 INFO L444 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-11-20 03:00:57,936 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-11-20 03:00:57,936 INFO L444 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-11-20 03:00:57,936 INFO L444 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2019-11-20 03:00:57,936 INFO L444 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2019-11-20 03:00:57,936 INFO L444 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2019-11-20 03:00:57,937 INFO L444 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2019-11-20 03:00:57,937 INFO L444 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2019-11-20 03:00:57,937 INFO L444 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-11-20 03:00:57,937 INFO L444 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-11-20 03:00:57,937 INFO L444 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-11-20 03:00:57,938 INFO L444 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,938 INFO L444 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,938 INFO L444 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,938 INFO L444 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,938 INFO L444 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2019-11-20 03:00:57,938 INFO L444 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,939 INFO L444 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,939 INFO L444 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-11-20 03:00:57,939 INFO L444 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-11-20 03:00:57,939 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 03:00:57,939 INFO L444 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2019-11-20 03:00:57,940 INFO L444 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2019-11-20 03:00:57,940 INFO L444 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2019-11-20 03:00:57,940 INFO L444 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2019-11-20 03:00:57,940 INFO L444 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2019-11-20 03:00:57,940 INFO L444 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2019-11-20 03:00:57,940 INFO L444 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-11-20 03:00:57,941 INFO L444 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-11-20 03:00:57,941 INFO L444 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-11-20 03:00:57,941 INFO L444 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-11-20 03:00:57,941 INFO L444 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,941 INFO L444 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,942 INFO L444 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,942 INFO L444 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,942 INFO L444 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,942 INFO L444 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-11-20 03:00:57,942 INFO L444 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,942 INFO L444 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-11-20 03:00:57,943 INFO L444 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-11-20 03:00:57,943 INFO L444 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2019-11-20 03:00:57,943 INFO L444 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2019-11-20 03:00:57,943 INFO L444 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2019-11-20 03:00:57,943 INFO L444 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2019-11-20 03:00:57,944 INFO L444 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2019-11-20 03:00:57,944 INFO L444 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2019-11-20 03:00:57,944 INFO L444 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-11-20 03:00:57,944 INFO L444 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-11-20 03:00:57,944 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-11-20 03:00:57,944 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 03:00:57,945 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 500) no Hoare annotation was computed. [2019-11-20 03:00:57,945 INFO L444 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-11-20 03:00:57,945 INFO L444 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-11-20 03:00:57,945 INFO L444 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-11-20 03:00:57,945 INFO L444 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,946 INFO L444 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,946 INFO L444 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,946 INFO L444 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,946 INFO L444 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,946 INFO L444 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2019-11-20 03:00:57,946 INFO L444 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-11-20 03:00:57,947 INFO L444 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2019-11-20 03:00:57,947 INFO L444 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2019-11-20 03:00:57,947 INFO L444 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2019-11-20 03:00:57,947 INFO L444 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2019-11-20 03:00:57,947 INFO L444 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2019-11-20 03:00:57,947 INFO L444 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2019-11-20 03:00:57,948 INFO L444 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-11-20 03:00:57,948 INFO L444 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-11-20 03:00:57,948 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-11-20 03:00:57,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 03:00:57 BoogieIcfgContainer [2019-11-20 03:00:57,982 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 03:00:57,983 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:00:57,983 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:00:57,983 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:00:57,984 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:00:46" (3/4) ... [2019-11-20 03:00:57,987 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 03:00:58,024 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 03:00:58,033 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 03:00:58,222 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3e6d281b-8768-4c79-8819-ea28399bddd5/bin/uautomizer/witness.graphml [2019-11-20 03:00:58,222 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:00:58,224 INFO L168 Benchmark]: Toolchain (without parser) took 14522.56 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 284.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -133.5 MB). Peak memory consumption was 151.2 MB. Max. memory is 11.5 GB. [2019-11-20 03:00:58,224 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:00:58,225 INFO L168 Benchmark]: CACSL2BoogieTranslator took 808.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -198.8 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-11-20 03:00:58,225 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:00:58,226 INFO L168 Benchmark]: Boogie Preprocessor took 117.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:00:58,226 INFO L168 Benchmark]: RCFGBuilder took 1787.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 109.2 MB). Peak memory consumption was 109.2 MB. Max. memory is 11.5 GB. [2019-11-20 03:00:58,227 INFO L168 Benchmark]: TraceAbstraction took 11428.82 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 112.7 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -73.1 MB). Peak memory consumption was 39.7 MB. Max. memory is 11.5 GB. [2019-11-20 03:00:58,227 INFO L168 Benchmark]: Witness Printer took 239.99 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:00:58,230 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 808.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -198.8 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 130.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 117.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1787.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 109.2 MB). Peak memory consumption was 109.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11428.82 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 112.7 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -73.1 MB). Peak memory consumption was 39.7 MB. Max. memory is 11.5 GB. * Witness Printer took 239.99 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 500]: 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: 30]: Loop Invariant Derived loop invariant: (((a16 == 4 || (1 == a7 && !(a16 == 5))) || ((1 == a7 && a21 <= 0) && a17 == 1)) || ((a17 == 1 && a21 == 1) && !(a16 == 5))) || !(a8 == 13) - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((a16 == 4 || (1 == a7 && !(a16 == 5))) || ((1 == a7 && a21 <= 0) && a17 == 1)) || ((a17 == 1 && a21 == 1) && !(a16 == 5))) || !(a8 == 13) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Result: SAFE, OverallTime: 11.3s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 830 SDtfs, 1953 SDslu, 93 SDs, 0 SdLazy, 4427 SolverSat, 786 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 218 GetRequests, 196 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1838occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 1053 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 40 NumberOfFragments, 75 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1208 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 116 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1402 NumberOfCodeBlocks, 1402 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1392 ConstructedInterpolants, 0 QuantifiedInterpolants, 487642 SizeOfPredicates, 1 NumberOfNonLiveVariables, 329 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 450/477 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...