./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label41.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label41.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b4d92197dfffdd027bb5d3ff3dbfa8e4eded7a5 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 14:57:02,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 14:57:02,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 14:57:02,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 14:57:02,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 14:57:02,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 14:57:02,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 14:57:02,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 14:57:02,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 14:57:02,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 14:57:02,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 14:57:02,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 14:57:02,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 14:57:02,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 14:57:02,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 14:57:02,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 14:57:02,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 14:57:02,487 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 14:57:02,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 14:57:02,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 14:57:02,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 14:57:02,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 14:57:02,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 14:57:02,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 14:57:02,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 14:57:02,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 14:57:02,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 14:57:02,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 14:57:02,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 14:57:02,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 14:57:02,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 14:57:02,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 14:57:02,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 14:57:02,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 14:57:02,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 14:57:02,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 14:57:02,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 14:57:02,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 14:57:02,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 14:57:02,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 14:57:02,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 14:57:02,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 14:57:02,587 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 14:57:02,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 14:57:02,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 14:57:02,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 14:57:02,591 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 14:57:02,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 14:57:02,595 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 14:57:02,595 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 14:57:02,595 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 14:57:02,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 14:57:02,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 14:57:02,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 14:57:02,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 14:57:02,598 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 14:57:02,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 14:57:02,598 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 14:57:02,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 14:57:02,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 14:57:02,599 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 14:57:02,600 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 14:57:02,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 14:57:02,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 14:57:02,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 14:57:02,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 14:57:02,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 14:57:02,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 14:57:02,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 14:57:02,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 14:57:02,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 14:57:02,602 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b4d92197dfffdd027bb5d3ff3dbfa8e4eded7a5 [2020-12-01 14:57:02,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 14:57:02,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 14:57:02,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 14:57:02,965 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 14:57:02,966 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 14:57:02,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem02_label41.c [2020-12-01 14:57:03,088 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer/data/da5b4819b/4f040fc471a34cb1b0c81b6e0fc9893f/FLAG2cd6f7856 [2020-12-01 14:57:03,668 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 14:57:03,669 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/sv-benchmarks/c/eca-rers2012/Problem02_label41.c [2020-12-01 14:57:03,683 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer/data/da5b4819b/4f040fc471a34cb1b0c81b6e0fc9893f/FLAG2cd6f7856 [2020-12-01 14:57:03,938 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer/data/da5b4819b/4f040fc471a34cb1b0c81b6e0fc9893f [2020-12-01 14:57:03,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 14:57:03,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 14:57:03,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 14:57:03,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 14:57:03,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 14:57:03,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:57:03" (1/1) ... [2020-12-01 14:57:03,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55563875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:03, skipping insertion in model container [2020-12-01 14:57:03,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:57:03" (1/1) ... [2020-12-01 14:57:03,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 14:57:04,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 14:57:04,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:57:04,448 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 14:57:04,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:57:04,619 INFO L208 MainTranslator]: Completed translation [2020-12-01 14:57:04,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:04 WrapperNode [2020-12-01 14:57:04,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 14:57:04,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 14:57:04,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 14:57:04,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 14:57:04,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:04" (1/1) ... [2020-12-01 14:57:04,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:04" (1/1) ... [2020-12-01 14:57:04,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 14:57:04,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 14:57:04,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 14:57:04,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 14:57:04,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:04" (1/1) ... [2020-12-01 14:57:04,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:04" (1/1) ... [2020-12-01 14:57:04,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:04" (1/1) ... [2020-12-01 14:57:04,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:04" (1/1) ... [2020-12-01 14:57:04,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:04" (1/1) ... [2020-12-01 14:57:04,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:04" (1/1) ... [2020-12-01 14:57:04,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:04" (1/1) ... [2020-12-01 14:57:04,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 14:57:04,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 14:57:04,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 14:57:04,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 14:57:04,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 14:57:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 14:57:04,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 14:57:04,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 14:57:04,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 14:57:06,544 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 14:57:06,544 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 14:57:06,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:57:06 BoogieIcfgContainer [2020-12-01 14:57:06,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 14:57:06,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 14:57:06,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 14:57:06,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 14:57:06,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 02:57:03" (1/3) ... [2020-12-01 14:57:06,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67a2bded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:57:06, skipping insertion in model container [2020-12-01 14:57:06,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:57:04" (2/3) ... [2020-12-01 14:57:06,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67a2bded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:57:06, skipping insertion in model container [2020-12-01 14:57:06,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:57:06" (3/3) ... [2020-12-01 14:57:06,555 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label41.c [2020-12-01 14:57:06,583 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 14:57:06,587 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 14:57:06,599 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 14:57:06,664 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 14:57:06,665 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 14:57:06,665 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 14:57:06,665 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 14:57:06,665 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 14:57:06,665 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 14:57:06,666 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 14:57:06,666 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 14:57:06,702 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2020-12-01 14:57:06,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-01 14:57:06,712 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:57:06,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:57:06,713 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:57:06,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:57:06,719 INFO L82 PathProgramCache]: Analyzing trace with hash 372621549, now seen corresponding path program 1 times [2020-12-01 14:57:06,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:57:06,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114393772] [2020-12-01 14:57:06,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:57:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:07,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:57:07,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114393772] [2020-12-01 14:57:07,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:57:07,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 14:57:07,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063081457] [2020-12-01 14:57:07,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:57:07,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:57:07,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:57:07,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:57:07,228 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 3 states. [2020-12-01 14:57:08,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:57:08,398 INFO L93 Difference]: Finished difference Result 640 states and 1083 transitions. [2020-12-01 14:57:08,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:57:08,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-12-01 14:57:08,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:57:08,417 INFO L225 Difference]: With dead ends: 640 [2020-12-01 14:57:08,417 INFO L226 Difference]: Without dead ends: 318 [2020-12-01 14:57:08,428 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:57:08,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-12-01 14:57:08,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 313. [2020-12-01 14:57:08,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-12-01 14:57:08,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 459 transitions. [2020-12-01 14:57:08,508 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 459 transitions. Word has length 90 [2020-12-01 14:57:08,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:57:08,509 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 459 transitions. [2020-12-01 14:57:08,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:57:08,510 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 459 transitions. [2020-12-01 14:57:08,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-01 14:57:08,518 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:57:08,518 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-01 14:57:08,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 14:57:08,519 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:57:08,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:57:08,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1103465114, now seen corresponding path program 1 times [2020-12-01 14:57:08,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:57:08,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443772932] [2020-12-01 14:57:08,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:57:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:08,628 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:57:08,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443772932] [2020-12-01 14:57:08,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:57:08,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 14:57:08,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240358811] [2020-12-01 14:57:08,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:57:08,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:57:08,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:57:08,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:57:08,632 INFO L87 Difference]: Start difference. First operand 313 states and 459 transitions. Second operand 3 states. [2020-12-01 14:57:09,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:57:09,197 INFO L93 Difference]: Finished difference Result 910 states and 1341 transitions. [2020-12-01 14:57:09,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:57:09,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2020-12-01 14:57:09,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:57:09,203 INFO L225 Difference]: With dead ends: 910 [2020-12-01 14:57:09,203 INFO L226 Difference]: Without dead ends: 599 [2020-12-01 14:57:09,206 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:57:09,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-12-01 14:57:09,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 596. [2020-12-01 14:57:09,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-12-01 14:57:09,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 772 transitions. [2020-12-01 14:57:09,240 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 772 transitions. Word has length 94 [2020-12-01 14:57:09,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:57:09,241 INFO L481 AbstractCegarLoop]: Abstraction has 596 states and 772 transitions. [2020-12-01 14:57:09,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:57:09,241 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 772 transitions. [2020-12-01 14:57:09,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-01 14:57:09,264 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:57:09,264 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:57:09,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 14:57:09,265 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:57:09,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:57:09,266 INFO L82 PathProgramCache]: Analyzing trace with hash 941217127, now seen corresponding path program 1 times [2020-12-01 14:57:09,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:57:09,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650761169] [2020-12-01 14:57:09,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:57:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:09,414 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:57:09,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650761169] [2020-12-01 14:57:09,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117563397] [2020-12-01 14:57:09,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 14:57:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:09,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 14:57:09,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:57:09,649 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-01 14:57:09,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 14:57:09,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-01 14:57:09,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081235161] [2020-12-01 14:57:09,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:57:09,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:57:09,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:57:09,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:57:09,653 INFO L87 Difference]: Start difference. First operand 596 states and 772 transitions. Second operand 3 states. [2020-12-01 14:57:10,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:57:10,354 INFO L93 Difference]: Finished difference Result 1476 states and 1965 transitions. [2020-12-01 14:57:10,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:57:10,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2020-12-01 14:57:10,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:57:10,364 INFO L225 Difference]: With dead ends: 1476 [2020-12-01 14:57:10,372 INFO L226 Difference]: Without dead ends: 882 [2020-12-01 14:57:10,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:57:10,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2020-12-01 14:57:10,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 881. [2020-12-01 14:57:10,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2020-12-01 14:57:10,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1147 transitions. [2020-12-01 14:57:10,427 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1147 transitions. Word has length 99 [2020-12-01 14:57:10,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:57:10,431 INFO L481 AbstractCegarLoop]: Abstraction has 881 states and 1147 transitions. [2020-12-01 14:57:10,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:57:10,431 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1147 transitions. [2020-12-01 14:57:10,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-01 14:57:10,443 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:57:10,443 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:57:10,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-01 14:57:10,655 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:57:10,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:57:10,656 INFO L82 PathProgramCache]: Analyzing trace with hash 741827353, now seen corresponding path program 1 times [2020-12-01 14:57:10,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:57:10,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016246994] [2020-12-01 14:57:10,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:57:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:10,794 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-12-01 14:57:10,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016246994] [2020-12-01 14:57:10,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125523420] [2020-12-01 14:57:10,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 14:57:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:10,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 14:57:10,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:57:11,032 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-01 14:57:11,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 14:57:11,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-01 14:57:11,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078712159] [2020-12-01 14:57:11,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:57:11,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:57:11,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:57:11,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:57:11,036 INFO L87 Difference]: Start difference. First operand 881 states and 1147 transitions. Second operand 3 states. [2020-12-01 14:57:11,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:57:11,674 INFO L93 Difference]: Finished difference Result 2040 states and 2662 transitions. [2020-12-01 14:57:11,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:57:11,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-12-01 14:57:11,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:57:11,684 INFO L225 Difference]: With dead ends: 2040 [2020-12-01 14:57:11,698 INFO L226 Difference]: Without dead ends: 1161 [2020-12-01 14:57:11,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:57:11,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2020-12-01 14:57:11,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1160. [2020-12-01 14:57:11,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1160 states. [2020-12-01 14:57:11,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1435 transitions. [2020-12-01 14:57:11,763 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1435 transitions. Word has length 115 [2020-12-01 14:57:11,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:57:11,763 INFO L481 AbstractCegarLoop]: Abstraction has 1160 states and 1435 transitions. [2020-12-01 14:57:11,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:57:11,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1435 transitions. [2020-12-01 14:57:11,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-01 14:57:11,766 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:57:11,767 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:57:11,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 14:57:11,995 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:57:11,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:57:11,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1699088414, now seen corresponding path program 1 times [2020-12-01 14:57:11,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:57:11,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624076001] [2020-12-01 14:57:11,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:57:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:12,114 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:57:12,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624076001] [2020-12-01 14:57:12,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:57:12,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:57:12,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961041630] [2020-12-01 14:57:12,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:57:12,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:57:12,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:57:12,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:57:12,122 INFO L87 Difference]: Start difference. First operand 1160 states and 1435 transitions. Second operand 3 states. [2020-12-01 14:57:12,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:57:12,828 INFO L93 Difference]: Finished difference Result 2601 states and 3243 transitions. [2020-12-01 14:57:12,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:57:12,829 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-12-01 14:57:12,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:57:12,838 INFO L225 Difference]: With dead ends: 2601 [2020-12-01 14:57:12,838 INFO L226 Difference]: Without dead ends: 1443 [2020-12-01 14:57:12,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:57:12,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2020-12-01 14:57:12,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1440. [2020-12-01 14:57:12,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1440 states. [2020-12-01 14:57:12,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 1740 transitions. [2020-12-01 14:57:12,887 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 1740 transitions. Word has length 115 [2020-12-01 14:57:12,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:57:12,888 INFO L481 AbstractCegarLoop]: Abstraction has 1440 states and 1740 transitions. [2020-12-01 14:57:12,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:57:12,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 1740 transitions. [2020-12-01 14:57:12,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-12-01 14:57:12,892 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:57:12,893 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:57:12,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-01 14:57:12,894 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:57:12,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:57:12,895 INFO L82 PathProgramCache]: Analyzing trace with hash -439949385, now seen corresponding path program 1 times [2020-12-01 14:57:12,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:57:12,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942712437] [2020-12-01 14:57:12,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:57:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:12,994 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:57:12,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942712437] [2020-12-01 14:57:12,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:57:12,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 14:57:12,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280756333] [2020-12-01 14:57:12,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:57:12,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:57:13,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:57:13,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:57:13,001 INFO L87 Difference]: Start difference. First operand 1440 states and 1740 transitions. Second operand 3 states. [2020-12-01 14:57:13,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:57:13,620 INFO L93 Difference]: Finished difference Result 3997 states and 4858 transitions. [2020-12-01 14:57:13,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:57:13,621 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2020-12-01 14:57:13,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:57:13,638 INFO L225 Difference]: With dead ends: 3997 [2020-12-01 14:57:13,639 INFO L226 Difference]: Without dead ends: 2559 [2020-12-01 14:57:13,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:57:13,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2020-12-01 14:57:13,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2559. [2020-12-01 14:57:13,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2559 states. [2020-12-01 14:57:13,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2559 states to 2559 states and 3014 transitions. [2020-12-01 14:57:13,710 INFO L78 Accepts]: Start accepts. Automaton has 2559 states and 3014 transitions. Word has length 118 [2020-12-01 14:57:13,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:57:13,713 INFO L481 AbstractCegarLoop]: Abstraction has 2559 states and 3014 transitions. [2020-12-01 14:57:13,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:57:13,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2559 states and 3014 transitions. [2020-12-01 14:57:13,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-12-01 14:57:13,718 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:57:13,719 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-12-01 14:57:13,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-01 14:57:13,719 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:57:13,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:57:13,721 INFO L82 PathProgramCache]: Analyzing trace with hash -596947260, now seen corresponding path program 1 times [2020-12-01 14:57:13,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:57:13,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960323080] [2020-12-01 14:57:13,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:57:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:13,812 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:57:13,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960323080] [2020-12-01 14:57:13,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:57:13,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:57:13,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751893512] [2020-12-01 14:57:13,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:57:13,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:57:13,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:57:13,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:57:13,816 INFO L87 Difference]: Start difference. First operand 2559 states and 3014 transitions. Second operand 3 states. [2020-12-01 14:57:14,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:57:14,339 INFO L93 Difference]: Finished difference Result 5115 states and 6026 transitions. [2020-12-01 14:57:14,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:57:14,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2020-12-01 14:57:14,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:57:14,357 INFO L225 Difference]: With dead ends: 5115 [2020-12-01 14:57:14,358 INFO L226 Difference]: Without dead ends: 2558 [2020-12-01 14:57:14,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:57:14,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2020-12-01 14:57:14,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 2553. [2020-12-01 14:57:14,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2553 states. [2020-12-01 14:57:14,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2553 states to 2553 states and 2919 transitions. [2020-12-01 14:57:14,439 INFO L78 Accepts]: Start accepts. Automaton has 2553 states and 2919 transitions. Word has length 123 [2020-12-01 14:57:14,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:57:14,439 INFO L481 AbstractCegarLoop]: Abstraction has 2553 states and 2919 transitions. [2020-12-01 14:57:14,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:57:14,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2553 states and 2919 transitions. [2020-12-01 14:57:14,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-12-01 14:57:14,445 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:57:14,446 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:57:14,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-01 14:57:14,446 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:57:14,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:57:14,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1138152211, now seen corresponding path program 1 times [2020-12-01 14:57:14,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:57:14,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295438729] [2020-12-01 14:57:14,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:57:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:14,532 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:57:14,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295438729] [2020-12-01 14:57:14,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:57:14,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 14:57:14,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181843489] [2020-12-01 14:57:14,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:57:14,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:57:14,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:57:14,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:57:14,535 INFO L87 Difference]: Start difference. First operand 2553 states and 2919 transitions. Second operand 3 states. [2020-12-01 14:57:15,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:57:15,126 INFO L93 Difference]: Finished difference Result 6798 states and 7801 transitions. [2020-12-01 14:57:15,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:57:15,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2020-12-01 14:57:15,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:57:15,149 INFO L225 Difference]: With dead ends: 6798 [2020-12-01 14:57:15,150 INFO L226 Difference]: Without dead ends: 4247 [2020-12-01 14:57:15,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:57:15,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4247 states. [2020-12-01 14:57:15,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4247 to 4246. [2020-12-01 14:57:15,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4246 states. [2020-12-01 14:57:15,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4246 states to 4246 states and 4789 transitions. [2020-12-01 14:57:15,267 INFO L78 Accepts]: Start accepts. Automaton has 4246 states and 4789 transitions. Word has length 123 [2020-12-01 14:57:15,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:57:15,268 INFO L481 AbstractCegarLoop]: Abstraction has 4246 states and 4789 transitions. [2020-12-01 14:57:15,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:57:15,268 INFO L276 IsEmpty]: Start isEmpty. Operand 4246 states and 4789 transitions. [2020-12-01 14:57:15,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-12-01 14:57:15,275 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:57:15,275 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:57:15,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-01 14:57:15,276 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:57:15,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:57:15,277 INFO L82 PathProgramCache]: Analyzing trace with hash 83537242, now seen corresponding path program 1 times [2020-12-01 14:57:15,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:57:15,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886273634] [2020-12-01 14:57:15,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:57:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:15,408 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-12-01 14:57:15,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886273634] [2020-12-01 14:57:15,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790676054] [2020-12-01 14:57:15,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 14:57:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:15,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 14:57:15,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:57:15,679 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-01 14:57:15,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 14:57:15,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-12-01 14:57:15,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486728064] [2020-12-01 14:57:15,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:57:15,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:57:15,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:57:15,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:57:15,682 INFO L87 Difference]: Start difference. First operand 4246 states and 4789 transitions. Second operand 3 states. [2020-12-01 14:57:16,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:57:16,036 INFO L93 Difference]: Finished difference Result 7777 states and 8777 transitions. [2020-12-01 14:57:16,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:57:16,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-12-01 14:57:16,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:57:16,056 INFO L225 Difference]: With dead ends: 7777 [2020-12-01 14:57:16,057 INFO L226 Difference]: Without dead ends: 3391 [2020-12-01 14:57:16,063 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:57:16,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3391 states. [2020-12-01 14:57:16,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3391 to 3391. [2020-12-01 14:57:16,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3391 states. [2020-12-01 14:57:16,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3391 states to 3391 states and 3746 transitions. [2020-12-01 14:57:16,149 INFO L78 Accepts]: Start accepts. Automaton has 3391 states and 3746 transitions. Word has length 142 [2020-12-01 14:57:16,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:57:16,150 INFO L481 AbstractCegarLoop]: Abstraction has 3391 states and 3746 transitions. [2020-12-01 14:57:16,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:57:16,150 INFO L276 IsEmpty]: Start isEmpty. Operand 3391 states and 3746 transitions. [2020-12-01 14:57:16,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-12-01 14:57:16,156 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:57:16,157 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-12-01 14:57:16,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 14:57:16,383 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:57:16,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:57:16,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1389352424, now seen corresponding path program 1 times [2020-12-01 14:57:16,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:57:16,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510101806] [2020-12-01 14:57:16,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:57:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:16,475 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-12-01 14:57:16,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510101806] [2020-12-01 14:57:16,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:57:16,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:57:16,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352544591] [2020-12-01 14:57:16,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:57:16,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:57:16,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:57:16,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:57:16,479 INFO L87 Difference]: Start difference. First operand 3391 states and 3746 transitions. Second operand 3 states. [2020-12-01 14:57:17,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:57:17,052 INFO L93 Difference]: Finished difference Result 6355 states and 7051 transitions. [2020-12-01 14:57:17,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:57:17,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-12-01 14:57:17,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:57:17,073 INFO L225 Difference]: With dead ends: 6355 [2020-12-01 14:57:17,073 INFO L226 Difference]: Without dead ends: 3106 [2020-12-01 14:57:17,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:57:17,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2020-12-01 14:57:17,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 3106. [2020-12-01 14:57:17,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3106 states. [2020-12-01 14:57:17,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3106 states to 3106 states and 3420 transitions. [2020-12-01 14:57:17,194 INFO L78 Accepts]: Start accepts. Automaton has 3106 states and 3420 transitions. Word has length 147 [2020-12-01 14:57:17,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:57:17,194 INFO L481 AbstractCegarLoop]: Abstraction has 3106 states and 3420 transitions. [2020-12-01 14:57:17,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:57:17,194 INFO L276 IsEmpty]: Start isEmpty. Operand 3106 states and 3420 transitions. [2020-12-01 14:57:17,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-12-01 14:57:17,201 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:57:17,201 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:57:17,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-01 14:57:17,202 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:57:17,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:57:17,202 INFO L82 PathProgramCache]: Analyzing trace with hash -91914518, now seen corresponding path program 1 times [2020-12-01 14:57:17,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:57:17,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591771297] [2020-12-01 14:57:17,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:57:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:17,301 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-12-01 14:57:17,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591771297] [2020-12-01 14:57:17,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:57:17,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:57:17,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438072238] [2020-12-01 14:57:17,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:57:17,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:57:17,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:57:17,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:57:17,306 INFO L87 Difference]: Start difference. First operand 3106 states and 3420 transitions. Second operand 3 states. [2020-12-01 14:57:17,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:57:17,851 INFO L93 Difference]: Finished difference Result 6348 states and 7005 transitions. [2020-12-01 14:57:17,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:57:17,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-12-01 14:57:17,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:57:17,865 INFO L225 Difference]: With dead ends: 6348 [2020-12-01 14:57:17,865 INFO L226 Difference]: Without dead ends: 2679 [2020-12-01 14:57:17,870 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:57:17,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2679 states. [2020-12-01 14:57:17,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2679 to 2679. [2020-12-01 14:57:17,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2679 states. [2020-12-01 14:57:17,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2679 states to 2679 states and 2911 transitions. [2020-12-01 14:57:17,976 INFO L78 Accepts]: Start accepts. Automaton has 2679 states and 2911 transitions. Word has length 158 [2020-12-01 14:57:17,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:57:17,976 INFO L481 AbstractCegarLoop]: Abstraction has 2679 states and 2911 transitions. [2020-12-01 14:57:17,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:57:17,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2679 states and 2911 transitions. [2020-12-01 14:57:17,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-12-01 14:57:17,986 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:57:17,986 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2020-12-01 14:57:17,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-01 14:57:17,987 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:57:17,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:57:17,987 INFO L82 PathProgramCache]: Analyzing trace with hash -285629746, now seen corresponding path program 1 times [2020-12-01 14:57:17,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:57:17,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106402171] [2020-12-01 14:57:17,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:57:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:18,087 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2020-12-01 14:57:18,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106402171] [2020-12-01 14:57:18,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297522037] [2020-12-01 14:57:18,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 14:57:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:18,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 14:57:18,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:57:18,399 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-12-01 14:57:18,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 14:57:18,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-01 14:57:18,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127543894] [2020-12-01 14:57:18,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:57:18,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:57:18,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:57:18,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:57:18,402 INFO L87 Difference]: Start difference. First operand 2679 states and 2911 transitions. Second operand 3 states. [2020-12-01 14:57:18,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:57:18,912 INFO L93 Difference]: Finished difference Result 5778 states and 6308 transitions. [2020-12-01 14:57:18,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:57:18,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2020-12-01 14:57:18,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:57:18,928 INFO L225 Difference]: With dead ends: 5778 [2020-12-01 14:57:18,928 INFO L226 Difference]: Without dead ends: 2961 [2020-12-01 14:57:18,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:57:18,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2020-12-01 14:57:18,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 2959. [2020-12-01 14:57:18,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2959 states. [2020-12-01 14:57:19,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2959 states to 2959 states and 3199 transitions. [2020-12-01 14:57:19,002 INFO L78 Accepts]: Start accepts. Automaton has 2959 states and 3199 transitions. Word has length 182 [2020-12-01 14:57:19,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:57:19,002 INFO L481 AbstractCegarLoop]: Abstraction has 2959 states and 3199 transitions. [2020-12-01 14:57:19,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:57:19,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2959 states and 3199 transitions. [2020-12-01 14:57:19,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-12-01 14:57:19,011 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:57:19,011 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-12-01 14:57:19,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 14:57:19,238 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:57:19,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:57:19,238 INFO L82 PathProgramCache]: Analyzing trace with hash 828237284, now seen corresponding path program 1 times [2020-12-01 14:57:19,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:57:19,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285703829] [2020-12-01 14:57:19,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:57:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:19,349 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2020-12-01 14:57:19,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285703829] [2020-12-01 14:57:19,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617839571] [2020-12-01 14:57:19,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 14:57:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:57:19,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 14:57:19,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:57:19,655 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-12-01 14:57:19,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 14:57:19,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-01 14:57:19,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548787085] [2020-12-01 14:57:19,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:57:19,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:57:19,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:57:19,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:57:19,659 INFO L87 Difference]: Start difference. First operand 2959 states and 3199 transitions. Second operand 3 states. [2020-12-01 14:57:20,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:57:20,132 INFO L93 Difference]: Finished difference Result 5350 states and 5792 transitions. [2020-12-01 14:57:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:57:20,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2020-12-01 14:57:20,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:57:20,133 INFO L225 Difference]: With dead ends: 5350 [2020-12-01 14:57:20,133 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 14:57:20,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:57:20,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 14:57:20,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 14:57:20,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 14:57:20,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 14:57:20,140 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 207 [2020-12-01 14:57:20,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:57:20,140 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 14:57:20,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:57:20,141 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 14:57:20,141 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 14:57:20,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-01 14:57:20,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 14:57:20,608 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2020-12-01 14:57:20,783 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2020-12-01 14:57:20,787 INFO L262 CegarLoopResult]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,787 INFO L262 CegarLoopResult]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,787 INFO L262 CegarLoopResult]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,788 INFO L262 CegarLoopResult]: For program point L301(lines 301 423) no Hoare annotation was computed. [2020-12-01 14:57:20,788 INFO L262 CegarLoopResult]: For program point L235(lines 235 423) no Hoare annotation was computed. [2020-12-01 14:57:20,788 INFO L262 CegarLoopResult]: For program point L169(lines 169 423) no Hoare annotation was computed. [2020-12-01 14:57:20,788 INFO L262 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-12-01 14:57:20,788 INFO L262 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-12-01 14:57:20,788 INFO L262 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-12-01 14:57:20,789 INFO L262 CegarLoopResult]: For program point L303(lines 303 423) no Hoare annotation was computed. [2020-12-01 14:57:20,789 INFO L262 CegarLoopResult]: For program point L105(lines 105 423) no Hoare annotation was computed. [2020-12-01 14:57:20,789 INFO L262 CegarLoopResult]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,789 INFO L262 CegarLoopResult]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,789 INFO L262 CegarLoopResult]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,789 INFO L262 CegarLoopResult]: For program point L40(lines 40 423) no Hoare annotation was computed. [2020-12-01 14:57:20,790 INFO L262 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-12-01 14:57:20,790 INFO L262 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-12-01 14:57:20,790 INFO L262 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-12-01 14:57:20,790 INFO L262 CegarLoopResult]: For program point L371(lines 371 423) no Hoare annotation was computed. [2020-12-01 14:57:20,790 INFO L262 CegarLoopResult]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,790 INFO L262 CegarLoopResult]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,791 INFO L262 CegarLoopResult]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,791 INFO L262 CegarLoopResult]: For program point L307(lines 307 423) no Hoare annotation was computed. [2020-12-01 14:57:20,791 INFO L262 CegarLoopResult]: For program point L175(lines 175 423) no Hoare annotation was computed. [2020-12-01 14:57:20,791 INFO L262 CegarLoopResult]: For program point L109(lines 109 423) no Hoare annotation was computed. [2020-12-01 14:57:20,791 INFO L262 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-12-01 14:57:20,791 INFO L262 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-12-01 14:57:20,792 INFO L262 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-12-01 14:57:20,792 INFO L262 CegarLoopResult]: For program point L308(lines 308 317) no Hoare annotation was computed. [2020-12-01 14:57:20,792 INFO L262 CegarLoopResult]: For program point L242(lines 242 423) no Hoare annotation was computed. [2020-12-01 14:57:20,792 INFO L262 CegarLoopResult]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2020-12-01 14:57:20,792 INFO L262 CegarLoopResult]: For program point L45(lines 45 423) no Hoare annotation was computed. [2020-12-01 14:57:20,792 INFO L262 CegarLoopResult]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,792 INFO L262 CegarLoopResult]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,793 INFO L262 CegarLoopResult]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,793 INFO L262 CegarLoopResult]: For program point L244(lines 244 423) no Hoare annotation was computed. [2020-12-01 14:57:20,793 INFO L262 CegarLoopResult]: For program point L575(line 575) no Hoare annotation was computed. [2020-12-01 14:57:20,793 INFO L262 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-12-01 14:57:20,793 INFO L262 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-12-01 14:57:20,793 INFO L262 CegarLoopResult]: For program point L179(lines 179 423) no Hoare annotation was computed. [2020-12-01 14:57:20,794 INFO L262 CegarLoopResult]: For program point L378(lines 378 423) no Hoare annotation was computed. [2020-12-01 14:57:20,794 INFO L262 CegarLoopResult]: For program point L48(lines 48 423) no Hoare annotation was computed. [2020-12-01 14:57:20,794 INFO L262 CegarLoopResult]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,794 INFO L262 CegarLoopResult]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,794 INFO L262 CegarLoopResult]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,794 INFO L262 CegarLoopResult]: For program point L247(lines 247 423) no Hoare annotation was computed. [2020-12-01 14:57:20,795 INFO L262 CegarLoopResult]: For program point L578(line 578) no Hoare annotation was computed. [2020-12-01 14:57:20,795 INFO L262 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-12-01 14:57:20,795 INFO L262 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-12-01 14:57:20,795 INFO L262 CegarLoopResult]: For program point L248(lines 248 256) no Hoare annotation was computed. [2020-12-01 14:57:20,795 INFO L262 CegarLoopResult]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2020-12-01 14:57:20,795 INFO L262 CegarLoopResult]: For program point L116(lines 116 423) no Hoare annotation was computed. [2020-12-01 14:57:20,795 INFO L262 CegarLoopResult]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,796 INFO L262 CegarLoopResult]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,796 INFO L262 CegarLoopResult]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,796 INFO L262 CegarLoopResult]: For program point L52(lines 52 423) no Hoare annotation was computed. [2020-12-01 14:57:20,796 INFO L262 CegarLoopResult]: For program point L581(line 581) no Hoare annotation was computed. [2020-12-01 14:57:20,796 INFO L262 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-12-01 14:57:20,796 INFO L262 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-12-01 14:57:20,797 INFO L262 CegarLoopResult]: For program point L185(lines 185 423) no Hoare annotation was computed. [2020-12-01 14:57:20,797 INFO L262 CegarLoopResult]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,797 INFO L262 CegarLoopResult]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,797 INFO L262 CegarLoopResult]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,797 INFO L262 CegarLoopResult]: For program point L385(lines 385 423) no Hoare annotation was computed. [2020-12-01 14:57:20,797 INFO L262 CegarLoopResult]: For program point L319(lines 319 423) no Hoare annotation was computed. [2020-12-01 14:57:20,798 INFO L262 CegarLoopResult]: For program point L584(line 584) no Hoare annotation was computed. [2020-12-01 14:57:20,798 INFO L262 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-12-01 14:57:20,798 INFO L262 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-12-01 14:57:20,798 INFO L262 CegarLoopResult]: For program point L189(lines 189 423) no Hoare annotation was computed. [2020-12-01 14:57:20,798 INFO L262 CegarLoopResult]: For program point L123(lines 123 423) no Hoare annotation was computed. [2020-12-01 14:57:20,798 INFO L262 CegarLoopResult]: For program point L57(lines 57 423) no Hoare annotation was computed. [2020-12-01 14:57:20,798 INFO L262 CegarLoopResult]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,799 INFO L262 CegarLoopResult]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,799 INFO L262 CegarLoopResult]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,799 INFO L262 CegarLoopResult]: For program point L388(lines 388 423) no Hoare annotation was computed. [2020-12-01 14:57:20,799 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 14:57:20,799 INFO L262 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-12-01 14:57:20,799 INFO L262 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-12-01 14:57:20,800 INFO L262 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-12-01 14:57:20,800 INFO L262 CegarLoopResult]: For program point L390(lines 390 423) no Hoare annotation was computed. [2020-12-01 14:57:20,800 INFO L262 CegarLoopResult]: For program point L324(lines 324 423) no Hoare annotation was computed. [2020-12-01 14:57:20,800 INFO L262 CegarLoopResult]: For program point L258(lines 258 423) no Hoare annotation was computed. [2020-12-01 14:57:20,800 INFO L262 CegarLoopResult]: For program point L60(lines 60 423) no Hoare annotation was computed. [2020-12-01 14:57:20,800 INFO L262 CegarLoopResult]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,801 INFO L262 CegarLoopResult]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,801 INFO L262 CegarLoopResult]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,801 INFO L262 CegarLoopResult]: For program point L391(lines 391 397) no Hoare annotation was computed. [2020-12-01 14:57:20,801 INFO L262 CegarLoopResult]: For program point L325(lines 325 336) no Hoare annotation was computed. [2020-12-01 14:57:20,801 INFO L262 CegarLoopResult]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2020-12-01 14:57:20,801 INFO L262 CegarLoopResult]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2020-12-01 14:57:20,801 INFO L262 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-12-01 14:57:20,802 INFO L262 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-12-01 14:57:20,802 INFO L262 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-12-01 14:57:20,802 INFO L262 CegarLoopResult]: For program point L195(lines 195 423) no Hoare annotation was computed. [2020-12-01 14:57:20,802 INFO L262 CegarLoopResult]: For program point L129(lines 129 423) no Hoare annotation was computed. [2020-12-01 14:57:20,802 INFO L262 CegarLoopResult]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,802 INFO L262 CegarLoopResult]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,803 INFO L262 CegarLoopResult]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,803 INFO L262 CegarLoopResult]: For program point L64(lines 64 423) no Hoare annotation was computed. [2020-12-01 14:57:20,803 INFO L262 CegarLoopResult]: For program point L593(line 593) no Hoare annotation was computed. [2020-12-01 14:57:20,803 INFO L262 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-12-01 14:57:20,803 INFO L262 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-12-01 14:57:20,803 INFO L262 CegarLoopResult]: For program point L263(lines 263 423) no Hoare annotation was computed. [2020-12-01 14:57:20,804 INFO L262 CegarLoopResult]: For program point L197(lines 197 423) no Hoare annotation was computed. [2020-12-01 14:57:20,804 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 14:57:20,804 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-01 14:57:20,804 INFO L262 CegarLoopResult]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,805 INFO L262 CegarLoopResult]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,805 INFO L262 CegarLoopResult]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,805 INFO L262 CegarLoopResult]: For program point L199(lines 199 423) no Hoare annotation was computed. [2020-12-01 14:57:20,805 INFO L262 CegarLoopResult]: For program point L133(lines 133 423) no Hoare annotation was computed. [2020-12-01 14:57:20,805 INFO L262 CegarLoopResult]: For program point L596(line 596) no Hoare annotation was computed. [2020-12-01 14:57:20,805 INFO L262 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-12-01 14:57:20,806 INFO L262 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-12-01 14:57:20,806 INFO L262 CegarLoopResult]: For program point L399(lines 399 423) no Hoare annotation was computed. [2020-12-01 14:57:20,806 INFO L262 CegarLoopResult]: For program point L201(lines 201 423) no Hoare annotation was computed. [2020-12-01 14:57:20,806 INFO L262 CegarLoopResult]: For program point L69(lines 69 423) no Hoare annotation was computed. [2020-12-01 14:57:20,806 INFO L262 CegarLoopResult]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,807 INFO L262 CegarLoopResult]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,807 INFO L262 CegarLoopResult]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,807 INFO L262 CegarLoopResult]: For program point L599(line 599) no Hoare annotation was computed. [2020-12-01 14:57:20,807 INFO L262 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-12-01 14:57:20,807 INFO L262 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-12-01 14:57:20,807 INFO L262 CegarLoopResult]: For program point L269(lines 269 423) no Hoare annotation was computed. [2020-12-01 14:57:20,808 INFO L262 CegarLoopResult]: For program point L204(lines 204 423) no Hoare annotation was computed. [2020-12-01 14:57:20,808 INFO L262 CegarLoopResult]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,808 INFO L262 CegarLoopResult]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,808 INFO L262 CegarLoopResult]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,808 INFO L262 CegarLoopResult]: For program point L271(lines 271 423) no Hoare annotation was computed. [2020-12-01 14:57:20,808 INFO L262 CegarLoopResult]: For program point L602(line 602) no Hoare annotation was computed. [2020-12-01 14:57:20,809 INFO L262 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-12-01 14:57:20,809 INFO L262 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-12-01 14:57:20,809 INFO L262 CegarLoopResult]: For program point L404(lines 404 423) no Hoare annotation was computed. [2020-12-01 14:57:20,809 INFO L262 CegarLoopResult]: For program point L338(lines 338 423) no Hoare annotation was computed. [2020-12-01 14:57:20,809 INFO L262 CegarLoopResult]: For program point L272(lines 272 284) no Hoare annotation was computed. [2020-12-01 14:57:20,809 INFO L262 CegarLoopResult]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2020-12-01 14:57:20,810 INFO L262 CegarLoopResult]: For program point L140(lines 140 423) no Hoare annotation was computed. [2020-12-01 14:57:20,810 INFO L262 CegarLoopResult]: For program point L75(lines 75 423) no Hoare annotation was computed. [2020-12-01 14:57:20,810 INFO L262 CegarLoopResult]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2020-12-01 14:57:20,810 INFO L262 CegarLoopResult]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,810 INFO L262 CegarLoopResult]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,810 INFO L262 CegarLoopResult]: For program point L208(lines 208 423) no Hoare annotation was computed. [2020-12-01 14:57:20,811 INFO L262 CegarLoopResult]: For program point L605(line 605) no Hoare annotation was computed. [2020-12-01 14:57:20,811 INFO L262 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-12-01 14:57:20,811 INFO L262 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-12-01 14:57:20,811 INFO L262 CegarLoopResult]: For program point L341(lines 341 423) no Hoare annotation was computed. [2020-12-01 14:57:20,811 INFO L262 CegarLoopResult]: For program point L408(lines 408 423) no Hoare annotation was computed. [2020-12-01 14:57:20,811 INFO L262 CegarLoopResult]: For program point L342(lines 342 345) no Hoare annotation was computed. [2020-12-01 14:57:20,811 INFO L262 CegarLoopResult]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2020-12-01 14:57:20,812 INFO L262 CegarLoopResult]: For program point L144(lines 144 423) no Hoare annotation was computed. [2020-12-01 14:57:20,812 INFO L262 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-01 14:57:20,814 INFO L258 CegarLoopResult]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse6 (<= ~a17~0 7)) (.cse5 (<= ~a28~0 9)) (.cse0 (= ~a19~0 1)) (.cse9 (= ~a25~0 0)) (.cse2 (<= ~a28~0 7)) (.cse10 (<= ~a19~0 0)) (.cse4 (<= 9 ~a28~0)) (.cse1 (= ~a25~0 1)) (.cse8 (= ~a11~0 0)) (.cse3 (<= ~a17~0 8)) (.cse7 (<= ~a28~0 10))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse5 .cse6) (and .cse4 .cse0 .cse1 .cse3 .cse7) (and .cse0 .cse1 .cse8 .cse3) (and .cse4 .cse9 .cse6 .cse7) (and .cse10 .cse9 .cse5 .cse3) (and .cse4 .cse0 .cse9 .cse3 .cse7) (and .cse0 .cse9 .cse8 .cse2 .cse3) (and .cse10 .cse4 .cse1 .cse8 .cse3 .cse7))) [2020-12-01 14:57:20,814 INFO L262 CegarLoopResult]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,814 INFO L262 CegarLoopResult]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,815 INFO L262 CegarLoopResult]: For program point L79(lines 79 423) no Hoare annotation was computed. [2020-12-01 14:57:20,815 INFO L262 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-12-01 14:57:20,815 INFO L262 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-12-01 14:57:20,815 INFO L262 CegarLoopResult]: For program point L212(lines 212 423) no Hoare annotation was computed. [2020-12-01 14:57:20,815 INFO L262 CegarLoopResult]: For program point L213(lines 213 220) no Hoare annotation was computed. [2020-12-01 14:57:20,815 INFO L262 CegarLoopResult]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2020-12-01 14:57:20,816 INFO L265 CegarLoopResult]: At program point L610(lines 610 627) the Hoare annotation is: true [2020-12-01 14:57:20,816 INFO L262 CegarLoopResult]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,816 INFO L262 CegarLoopResult]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,816 INFO L262 CegarLoopResult]: For program point L412(lines 412 423) no Hoare annotation was computed. [2020-12-01 14:57:20,816 INFO L262 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-12-01 14:57:20,816 INFO L262 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-12-01 14:57:20,817 INFO L262 CegarLoopResult]: For program point L347(lines 347 423) no Hoare annotation was computed. [2020-12-01 14:57:20,817 INFO L262 CegarLoopResult]: For program point L149(lines 149 423) no Hoare annotation was computed. [2020-12-01 14:57:20,817 INFO L262 CegarLoopResult]: For program point L414(lines 414 423) no Hoare annotation was computed. [2020-12-01 14:57:20,817 INFO L262 CegarLoopResult]: For program point L348(lines 348 357) no Hoare annotation was computed. [2020-12-01 14:57:20,817 INFO L262 CegarLoopResult]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2020-12-01 14:57:20,817 INFO L262 CegarLoopResult]: For program point L84(lines 84 423) no Hoare annotation was computed. [2020-12-01 14:57:20,818 INFO L262 CegarLoopResult]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,818 INFO L262 CegarLoopResult]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,818 INFO L262 CegarLoopResult]: For program point L85(lines 85 90) no Hoare annotation was computed. [2020-12-01 14:57:20,818 INFO L262 CegarLoopResult]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2020-12-01 14:57:20,818 INFO L262 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-12-01 14:57:20,818 INFO L262 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-12-01 14:57:20,818 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 14:57:20,819 INFO L262 CegarLoopResult]: For program point L417(lines 417 423) no Hoare annotation was computed. [2020-12-01 14:57:20,819 INFO L262 CegarLoopResult]: For program point L153(lines 153 423) no Hoare annotation was computed. [2020-12-01 14:57:20,819 INFO L258 CegarLoopResult]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse6 (<= ~a17~0 7)) (.cse5 (<= ~a28~0 9)) (.cse0 (= ~a19~0 1)) (.cse9 (= ~a25~0 0)) (.cse2 (<= ~a28~0 7)) (.cse10 (<= ~a19~0 0)) (.cse4 (<= 9 ~a28~0)) (.cse1 (= ~a25~0 1)) (.cse8 (= ~a11~0 0)) (.cse3 (<= ~a17~0 8)) (.cse7 (<= ~a28~0 10))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse5 .cse6) (and .cse4 .cse0 .cse1 .cse3 .cse7) (and .cse0 .cse1 .cse8 .cse3) (and .cse4 .cse9 .cse6 .cse7) (and .cse10 .cse9 .cse5 .cse3) (and .cse4 .cse0 .cse9 .cse3 .cse7) (and .cse0 .cse9 .cse8 .cse2 .cse3) (and .cse10 .cse4 .cse1 .cse8 .cse3 .cse7))) [2020-12-01 14:57:20,819 INFO L262 CegarLoopResult]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,820 INFO L262 CegarLoopResult]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,820 INFO L262 CegarLoopResult]: For program point L286(lines 286 423) no Hoare annotation was computed. [2020-12-01 14:57:20,820 INFO L262 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-12-01 14:57:20,820 INFO L262 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-12-01 14:57:20,820 INFO L262 CegarLoopResult]: For program point L419(lines 419 423) no Hoare annotation was computed. [2020-12-01 14:57:20,820 INFO L262 CegarLoopResult]: For program point L222(lines 222 423) no Hoare annotation was computed. [2020-12-01 14:57:20,820 INFO L262 CegarLoopResult]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,821 INFO L262 CegarLoopResult]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,821 INFO L262 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-12-01 14:57:20,821 INFO L262 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-12-01 14:57:20,821 INFO L262 CegarLoopResult]: For program point L290(lines 290 423) no Hoare annotation was computed. [2020-12-01 14:57:20,821 INFO L262 CegarLoopResult]: For program point L158(lines 158 423) no Hoare annotation was computed. [2020-12-01 14:57:20,821 INFO L262 CegarLoopResult]: For program point L92(lines 92 423) no Hoare annotation was computed. [2020-12-01 14:57:20,822 INFO L262 CegarLoopResult]: For program point L621(line 621) no Hoare annotation was computed. [2020-12-01 14:57:20,822 INFO L262 CegarLoopResult]: For program point L225(lines 225 423) no Hoare annotation was computed. [2020-12-01 14:57:20,822 INFO L262 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2020-12-01 14:57:20,822 INFO L262 CegarLoopResult]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2020-12-01 14:57:20,822 INFO L262 CegarLoopResult]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,822 INFO L262 CegarLoopResult]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,822 INFO L262 CegarLoopResult]: For program point L424(lines 424 426) no Hoare annotation was computed. [2020-12-01 14:57:20,823 INFO L262 CegarLoopResult]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,823 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 14:57:20,823 INFO L262 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-12-01 14:57:20,823 INFO L262 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-12-01 14:57:20,823 INFO L262 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-12-01 14:57:20,823 INFO L262 CegarLoopResult]: For program point L359(lines 359 423) no Hoare annotation was computed. [2020-12-01 14:57:20,824 INFO L262 CegarLoopResult]: For program point L293(lines 293 423) no Hoare annotation was computed. [2020-12-01 14:57:20,824 INFO L262 CegarLoopResult]: For program point L228(lines 228 423) no Hoare annotation was computed. [2020-12-01 14:57:20,824 INFO L262 CegarLoopResult]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,824 INFO L262 CegarLoopResult]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,824 INFO L262 CegarLoopResult]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,824 INFO L262 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-12-01 14:57:20,825 INFO L262 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-12-01 14:57:20,825 INFO L262 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-12-01 14:57:20,825 INFO L262 CegarLoopResult]: For program point L296(lines 296 423) no Hoare annotation was computed. [2020-12-01 14:57:20,825 INFO L262 CegarLoopResult]: For program point L164(lines 164 423) no Hoare annotation was computed. [2020-12-01 14:57:20,825 INFO L262 CegarLoopResult]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,825 INFO L262 CegarLoopResult]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,825 INFO L262 CegarLoopResult]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2020-12-01 14:57:20,826 INFO L262 CegarLoopResult]: For program point L364(lines 364 423) no Hoare annotation was computed. [2020-12-01 14:57:20,826 INFO L262 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-12-01 14:57:20,826 INFO L262 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-12-01 14:57:20,826 INFO L262 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-12-01 14:57:20,826 INFO L262 CegarLoopResult]: For program point L233(lines 233 423) no Hoare annotation was computed. [2020-12-01 14:57:20,826 INFO L262 CegarLoopResult]: For program point L101(lines 101 423) no Hoare annotation was computed. [2020-12-01 14:57:20,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 02:57:20 BoogieIcfgContainer [2020-12-01 14:57:20,879 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 14:57:20,880 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 14:57:20,880 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 14:57:20,880 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 14:57:20,881 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:57:06" (3/4) ... [2020-12-01 14:57:20,885 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 14:57:20,923 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-01 14:57:20,925 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 14:57:20,927 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 14:57:20,929 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 14:57:21,111 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2617bb89-f92d-45ff-9286-465172bc0c17/bin/uautomizer/witness.graphml [2020-12-01 14:57:21,111 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 14:57:21,112 INFO L168 Benchmark]: Toolchain (without parser) took 17169.56 ms. Allocated memory was 86.0 MB in the beginning and 415.2 MB in the end (delta: 329.3 MB). Free memory was 53.3 MB in the beginning and 166.0 MB in the end (delta: -112.7 MB). Peak memory consumption was 216.0 MB. Max. memory is 16.1 GB. [2020-12-01 14:57:21,113 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory was 45.4 MB in the beginning and 45.4 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:57:21,114 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.08 ms. Allocated memory is still 86.0 MB. Free memory was 52.9 MB in the beginning and 48.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 14:57:21,114 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.02 ms. Allocated memory is still 86.0 MB. Free memory was 48.2 MB in the beginning and 42.9 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 14:57:21,115 INFO L168 Benchmark]: Boogie Preprocessor took 74.05 ms. Allocated memory is still 86.0 MB. Free memory was 42.9 MB in the beginning and 38.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 14:57:21,116 INFO L168 Benchmark]: RCFGBuilder took 1724.26 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 38.4 MB in the beginning and 70.1 MB in the end (delta: -31.7 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2020-12-01 14:57:21,116 INFO L168 Benchmark]: TraceAbstraction took 14331.17 ms. Allocated memory was 104.9 MB in the beginning and 415.2 MB in the end (delta: 310.4 MB). Free memory was 69.3 MB in the beginning and 179.6 MB in the end (delta: -110.3 MB). Peak memory consumption was 198.7 MB. Max. memory is 16.1 GB. [2020-12-01 14:57:21,117 INFO L168 Benchmark]: Witness Printer took 231.16 ms. Allocated memory is still 415.2 MB. Free memory was 179.6 MB in the beginning and 166.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 14:57:21,119 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory was 45.4 MB in the beginning and 45.4 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 672.08 ms. Allocated memory is still 86.0 MB. Free memory was 52.9 MB in the beginning and 48.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 125.02 ms. Allocated memory is still 86.0 MB. Free memory was 48.2 MB in the beginning and 42.9 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.05 ms. Allocated memory is still 86.0 MB. Free memory was 42.9 MB in the beginning and 38.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1724.26 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 38.4 MB in the beginning and 70.1 MB in the end (delta: -31.7 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14331.17 ms. Allocated memory was 104.9 MB in the beginning and 415.2 MB in the end (delta: 310.4 MB). Free memory was 69.3 MB in the beginning and 179.6 MB in the end (delta: -110.3 MB). Peak memory consumption was 198.7 MB. Max. memory is 16.1 GB. * Witness Printer took 231.16 ms. Allocated memory is still 415.2 MB. Free memory was 179.6 MB in the beginning and 166.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: ((((((((((a19 == 1 && a25 == 1) && a28 <= 7) && a17 <= 8) || (((9 <= a28 && a25 == 1) && a28 <= 9) && a17 <= 7)) || ((((9 <= a28 && a19 == 1) && a25 == 1) && a17 <= 8) && a28 <= 10)) || (((a19 == 1 && a25 == 1) && a11 == 0) && a17 <= 8)) || (((9 <= a28 && a25 == 0) && a17 <= 7) && a28 <= 10)) || (((a19 <= 0 && a25 == 0) && a28 <= 9) && a17 <= 8)) || ((((9 <= a28 && a19 == 1) && a25 == 0) && a17 <= 8) && a28 <= 10)) || ((((a19 == 1 && a25 == 0) && a11 == 0) && a28 <= 7) && a17 <= 8)) || (((((a19 <= 0 && 9 <= a28) && a25 == 1) && a11 == 0) && a17 <= 8) && a28 <= 10) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((((((a19 == 1 && a25 == 1) && a28 <= 7) && a17 <= 8) || (((9 <= a28 && a25 == 1) && a28 <= 9) && a17 <= 7)) || ((((9 <= a28 && a19 == 1) && a25 == 1) && a17 <= 8) && a28 <= 10)) || (((a19 == 1 && a25 == 1) && a11 == 0) && a17 <= 8)) || (((9 <= a28 && a25 == 0) && a17 <= 7) && a28 <= 10)) || (((a19 <= 0 && a25 == 0) && a28 <= 9) && a17 <= 8)) || ((((9 <= a28 && a19 == 1) && a25 == 0) && a17 <= 8) && a28 <= 10)) || ((((a19 == 1 && a25 == 0) && a11 == 0) && a28 <= 7) && a17 <= 8)) || (((((a19 <= 0 && 9 <= a28) && a25 == 1) && a11 == 0) && a17 <= 8) && a28 <= 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.7s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1647 SDtfs, 1704 SDslu, 186 SDs, 0 SdLazy, 4579 SolverSat, 680 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 775 GetRequests, 752 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4246occurred 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: 0.8s AutomataMinimizationTime, 13 MinimizatonAttempts, 21 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 57 NumberOfFragments, 267 HoareAnnotationTreeSize, 3 FomulaSimplifications, 606 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 142 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 2458 NumberOfCodeBlocks, 2458 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2440 ConstructedInterpolants, 0 QuantifiedInterpolants, 529666 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1634 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 18 InterpolantComputations, 13 PerfectInterpolantSequences, 1306/1321 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...