./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label31.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label31.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/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 5dd4c4a8834c6f526493b06f6bf2b3c1eba582a5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:34:52,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:34:52,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:34:52,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:34:52,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:34:52,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:34:52,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:34:52,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:34:52,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:34:52,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:34:52,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:34:52,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:34:52,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:34:52,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:34:52,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:34:52,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:34:52,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:34:52,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:34:52,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:34:52,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:34:52,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:34:52,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:34:52,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:34:52,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:34:52,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:34:52,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:34:52,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:34:52,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:34:52,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:34:52,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:34:52,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:34:52,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:34:52,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:34:52,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:34:52,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:34:52,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:34:52,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:34:52,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:34:52,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:34:52,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:34:52,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:34:52,606 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 23:34:52,627 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:34:52,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:34:52,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:34:52,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:34:52,629 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:34:52,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:34:52,629 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:34:52,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:34:52,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:34:52,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:34:52,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:34:52,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:34:52,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:34:52,631 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:34:52,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:34:52,631 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:34:52,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:34:52,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:34:52,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:34:52,632 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:34:52,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:34:52,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:34:52,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:34:52,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:34:52,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:34:52,633 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:34:52,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:34:52,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:34:52,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:34:52,634 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_f312a0ef-d424-44af-8728-19bd6797f0fd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5dd4c4a8834c6f526493b06f6bf2b3c1eba582a5 [2020-11-29 23:34:52,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:34:52,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:34:52,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:34:52,952 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:34:52,953 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:34:52,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem02_label31.c [2020-11-29 23:34:53,042 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/bin/uautomizer/data/300871cbb/c9703dfdd78d483f95f56a2e66edf019/FLAGe69e8e10a [2020-11-29 23:34:53,561 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:34:53,561 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/sv-benchmarks/c/eca-rers2012/Problem02_label31.c [2020-11-29 23:34:53,577 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/bin/uautomizer/data/300871cbb/c9703dfdd78d483f95f56a2e66edf019/FLAGe69e8e10a [2020-11-29 23:34:53,846 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/bin/uautomizer/data/300871cbb/c9703dfdd78d483f95f56a2e66edf019 [2020-11-29 23:34:53,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:34:53,850 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:34:53,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:34:53,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:34:53,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:34:53,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:34:53" (1/1) ... [2020-11-29 23:34:53,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@280d7681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:53, skipping insertion in model container [2020-11-29 23:34:53,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:34:53" (1/1) ... [2020-11-29 23:34:53,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:34:53,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:34:54,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:34:54,342 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:34:54,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:34:54,548 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:34:54,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:54 WrapperNode [2020-11-29 23:34:54,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:34:54,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:34:54,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:34:54,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:34:54,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:54" (1/1) ... [2020-11-29 23:34:54,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:54" (1/1) ... [2020-11-29 23:34:54,645 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:34:54,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:34:54,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:34:54,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:34:54,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:54" (1/1) ... [2020-11-29 23:34:54,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:54" (1/1) ... [2020-11-29 23:34:54,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:54" (1/1) ... [2020-11-29 23:34:54,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:54" (1/1) ... [2020-11-29 23:34:54,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:54" (1/1) ... [2020-11-29 23:34:54,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:54" (1/1) ... [2020-11-29 23:34:54,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:54" (1/1) ... [2020-11-29 23:34:54,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:34:54,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:34:54,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:34:54,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:34:54,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:34:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:34:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:34:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:34:54,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:34:56,183 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:34:56,183 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 23:34:56,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:34:56 BoogieIcfgContainer [2020-11-29 23:34:56,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:34:56,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:34:56,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:34:56,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:34:56,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:34:53" (1/3) ... [2020-11-29 23:34:56,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665de0f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:34:56, skipping insertion in model container [2020-11-29 23:34:56,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:54" (2/3) ... [2020-11-29 23:34:56,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665de0f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:34:56, skipping insertion in model container [2020-11-29 23:34:56,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:34:56" (3/3) ... [2020-11-29 23:34:56,197 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label31.c [2020-11-29 23:34:56,207 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:34:56,212 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 23:34:56,221 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 23:34:56,259 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:34:56,262 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:34:56,262 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:34:56,262 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:34:56,262 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:34:56,267 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:34:56,268 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:34:56,268 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:34:56,301 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2020-11-29 23:34:56,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-11-29 23:34:56,323 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:34:56,324 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:34:56,324 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:34:56,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:56,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1691815701, now seen corresponding path program 1 times [2020-11-29 23:34:56,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:56,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081607809] [2020-11-29 23:34:56,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:34:56,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:34:56,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081607809] [2020-11-29 23:34:56,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:34:56,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:34:56,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661937330] [2020-11-29 23:34:56,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:34:56,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:34:56,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:34:56,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:34:56,883 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 3 states. [2020-11-29 23:34:57,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:34:57,904 INFO L93 Difference]: Finished difference Result 640 states and 1083 transitions. [2020-11-29 23:34:57,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:34:57,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-11-29 23:34:57,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:34:57,932 INFO L225 Difference]: With dead ends: 640 [2020-11-29 23:34:57,932 INFO L226 Difference]: Without dead ends: 318 [2020-11-29 23:34:57,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:34:57,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-11-29 23:34:57,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 313. [2020-11-29 23:34:57,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-11-29 23:34:57,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 459 transitions. [2020-11-29 23:34:57,996 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 459 transitions. Word has length 116 [2020-11-29 23:34:57,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:34:57,997 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 459 transitions. [2020-11-29 23:34:57,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:34:57,997 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 459 transitions. [2020-11-29 23:34:58,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-11-29 23:34:58,001 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:34:58,001 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:34:58,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 23:34:58,001 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:34:58,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:58,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1919554942, now seen corresponding path program 1 times [2020-11-29 23:34:58,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:58,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16032764] [2020-11-29 23:34:58,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:34:58,099 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:34:58,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16032764] [2020-11-29 23:34:58,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:34:58,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:34:58,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429535109] [2020-11-29 23:34:58,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:34:58,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:34:58,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:34:58,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:34:58,103 INFO L87 Difference]: Start difference. First operand 313 states and 459 transitions. Second operand 3 states. [2020-11-29 23:34:58,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:34:58,769 INFO L93 Difference]: Finished difference Result 910 states and 1341 transitions. [2020-11-29 23:34:58,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:34:58,770 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-11-29 23:34:58,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:34:58,774 INFO L225 Difference]: With dead ends: 910 [2020-11-29 23:34:58,774 INFO L226 Difference]: Without dead ends: 599 [2020-11-29 23:34:58,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:34:58,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-11-29 23:34:58,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 596. [2020-11-29 23:34:58,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-11-29 23:34:58,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 772 transitions. [2020-11-29 23:34:58,817 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 772 transitions. Word has length 120 [2020-11-29 23:34:58,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:34:58,817 INFO L481 AbstractCegarLoop]: Abstraction has 596 states and 772 transitions. [2020-11-29 23:34:58,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:34:58,818 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 772 transitions. [2020-11-29 23:34:58,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-11-29 23:34:58,823 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:34:58,824 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:34:58,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 23:34:58,824 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:34:58,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:58,825 INFO L82 PathProgramCache]: Analyzing trace with hash -676585713, now seen corresponding path program 1 times [2020-11-29 23:34:58,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:58,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987231180] [2020-11-29 23:34:58,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:34:58,961 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:34:58,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987231180] [2020-11-29 23:34:58,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998707976] [2020-11-29 23:34:58,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:34:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:34:59,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:34:59,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:34:59,266 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-29 23:34:59,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:34:59,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-11-29 23:34:59,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392024262] [2020-11-29 23:34:59,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:34:59,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:34:59,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:34:59,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:34:59,269 INFO L87 Difference]: Start difference. First operand 596 states and 772 transitions. Second operand 3 states. [2020-11-29 23:34:59,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:34:59,970 INFO L93 Difference]: Finished difference Result 1611 states and 2114 transitions. [2020-11-29 23:34:59,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:34:59,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-11-29 23:34:59,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:34:59,982 INFO L225 Difference]: With dead ends: 1611 [2020-11-29 23:34:59,988 INFO L226 Difference]: Without dead ends: 1017 [2020-11-29 23:34:59,992 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:34:59,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2020-11-29 23:35:00,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 737. [2020-11-29 23:35:00,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 737 states. [2020-11-29 23:35:00,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 987 transitions. [2020-11-29 23:35:00,048 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 987 transitions. Word has length 125 [2020-11-29 23:35:00,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:00,049 INFO L481 AbstractCegarLoop]: Abstraction has 737 states and 987 transitions. [2020-11-29 23:35:00,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:00,051 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 987 transitions. [2020-11-29 23:35:00,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-11-29 23:35:00,056 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:00,057 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:00,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-29 23:35:00,271 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:00,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:00,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1847269421, now seen corresponding path program 1 times [2020-11-29 23:35:00,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:00,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803687155] [2020-11-29 23:35:00,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:00,368 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:00,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803687155] [2020-11-29 23:35:00,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:00,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:35:00,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45815251] [2020-11-29 23:35:00,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:00,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:00,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:00,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:35:00,375 INFO L87 Difference]: Start difference. First operand 737 states and 987 transitions. Second operand 3 states. [2020-11-29 23:35:00,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:00,725 INFO L93 Difference]: Finished difference Result 1458 states and 1954 transitions. [2020-11-29 23:35:00,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:00,725 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-11-29 23:35:00,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:00,729 INFO L225 Difference]: With dead ends: 1458 [2020-11-29 23:35:00,729 INFO L226 Difference]: Without dead ends: 723 [2020-11-29 23:35:00,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:35:00,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2020-11-29 23:35:00,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 723. [2020-11-29 23:35:00,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2020-11-29 23:35:00,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 914 transitions. [2020-11-29 23:35:00,753 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 914 transitions. Word has length 127 [2020-11-29 23:35:00,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:00,755 INFO L481 AbstractCegarLoop]: Abstraction has 723 states and 914 transitions. [2020-11-29 23:35:00,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:00,755 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 914 transitions. [2020-11-29 23:35:00,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-11-29 23:35:00,758 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:00,758 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:00,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 23:35:00,772 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:00,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:00,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1033298513, now seen corresponding path program 1 times [2020-11-29 23:35:00,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:00,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015847805] [2020-11-29 23:35:00,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:00,852 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 23:35:00,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015847805] [2020-11-29 23:35:00,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:00,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:35:00,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244984836] [2020-11-29 23:35:00,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:00,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:00,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:00,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:35:00,859 INFO L87 Difference]: Start difference. First operand 723 states and 914 transitions. Second operand 3 states. [2020-11-29 23:35:01,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:01,461 INFO L93 Difference]: Finished difference Result 1585 states and 2062 transitions. [2020-11-29 23:35:01,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:01,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-11-29 23:35:01,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:01,467 INFO L225 Difference]: With dead ends: 1585 [2020-11-29 23:35:01,467 INFO L226 Difference]: Without dead ends: 1004 [2020-11-29 23:35:01,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:35:01,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2020-11-29 23:35:01,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 1004. [2020-11-29 23:35:01,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1004 states. [2020-11-29 23:35:01,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1245 transitions. [2020-11-29 23:35:01,506 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1245 transitions. Word has length 147 [2020-11-29 23:35:01,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:01,507 INFO L481 AbstractCegarLoop]: Abstraction has 1004 states and 1245 transitions. [2020-11-29 23:35:01,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:01,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1245 transitions. [2020-11-29 23:35:01,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-29 23:35:01,511 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:01,511 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:01,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 23:35:01,512 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:01,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:01,512 INFO L82 PathProgramCache]: Analyzing trace with hash 665192385, now seen corresponding path program 1 times [2020-11-29 23:35:01,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:01,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955491077] [2020-11-29 23:35:01,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:01,624 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-11-29 23:35:01,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955491077] [2020-11-29 23:35:01,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351703554] [2020-11-29 23:35:01,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:35:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:01,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:35:01,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:01,810 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-29 23:35:01,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:35:01,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-29 23:35:01,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250534370] [2020-11-29 23:35:01,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:01,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:01,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:01,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:35:01,817 INFO L87 Difference]: Start difference. First operand 1004 states and 1245 transitions. Second operand 3 states. [2020-11-29 23:35:02,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:02,358 INFO L93 Difference]: Finished difference Result 2427 states and 3069 transitions. [2020-11-29 23:35:02,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:02,360 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-11-29 23:35:02,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:02,369 INFO L225 Difference]: With dead ends: 2427 [2020-11-29 23:35:02,369 INFO L226 Difference]: Without dead ends: 1565 [2020-11-29 23:35:02,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:35:02,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2020-11-29 23:35:02,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1565. [2020-11-29 23:35:02,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1565 states. [2020-11-29 23:35:02,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 1871 transitions. [2020-11-29 23:35:02,407 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 1871 transitions. Word has length 169 [2020-11-29 23:35:02,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:02,410 INFO L481 AbstractCegarLoop]: Abstraction has 1565 states and 1871 transitions. [2020-11-29 23:35:02,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:02,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 1871 transitions. [2020-11-29 23:35:02,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-11-29 23:35:02,415 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:02,415 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:02,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:35:02,642 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:02,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:02,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1042199781, now seen corresponding path program 1 times [2020-11-29 23:35:02,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:02,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241954478] [2020-11-29 23:35:02,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:02,814 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-11-29 23:35:02,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241954478] [2020-11-29 23:35:02,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:02,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 23:35:02,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347705983] [2020-11-29 23:35:02,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 23:35:02,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:02,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:35:02,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:35:02,817 INFO L87 Difference]: Start difference. First operand 1565 states and 1871 transitions. Second operand 5 states. [2020-11-29 23:35:03,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:03,817 INFO L93 Difference]: Finished difference Result 3730 states and 4422 transitions. [2020-11-29 23:35:03,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 23:35:03,819 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 171 [2020-11-29 23:35:03,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:03,828 INFO L225 Difference]: With dead ends: 3730 [2020-11-29 23:35:03,829 INFO L226 Difference]: Without dead ends: 2021 [2020-11-29 23:35:03,831 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:35:03,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2021 states. [2020-11-29 23:35:03,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2021 to 1565. [2020-11-29 23:35:03,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1565 states. [2020-11-29 23:35:03,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 1787 transitions. [2020-11-29 23:35:03,871 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 1787 transitions. Word has length 171 [2020-11-29 23:35:03,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:03,871 INFO L481 AbstractCegarLoop]: Abstraction has 1565 states and 1787 transitions. [2020-11-29 23:35:03,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 23:35:03,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 1787 transitions. [2020-11-29 23:35:03,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-11-29 23:35:03,876 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:03,876 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:03,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 23:35:03,877 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:03,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:03,877 INFO L82 PathProgramCache]: Analyzing trace with hash -850237989, now seen corresponding path program 1 times [2020-11-29 23:35:03,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:03,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312163715] [2020-11-29 23:35:03,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:04,067 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 64 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-11-29 23:35:04,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312163715] [2020-11-29 23:35:04,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069961411] [2020-11-29 23:35:04,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:35:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:04,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:35:04,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:04,257 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-11-29 23:35:04,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:35:04,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 23:35:04,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541147141] [2020-11-29 23:35:04,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:04,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:04,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:04,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:35:04,264 INFO L87 Difference]: Start difference. First operand 1565 states and 1787 transitions. Second operand 3 states. [2020-11-29 23:35:04,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:04,902 INFO L93 Difference]: Finished difference Result 3409 states and 3955 transitions. [2020-11-29 23:35:04,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:04,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2020-11-29 23:35:04,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:04,914 INFO L225 Difference]: With dead ends: 3409 [2020-11-29 23:35:04,914 INFO L226 Difference]: Without dead ends: 1986 [2020-11-29 23:35:04,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:35:04,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2020-11-29 23:35:04,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1846. [2020-11-29 23:35:04,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1846 states. [2020-11-29 23:35:04,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 2086 transitions. [2020-11-29 23:35:04,962 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 2086 transitions. Word has length 175 [2020-11-29 23:35:04,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:04,962 INFO L481 AbstractCegarLoop]: Abstraction has 1846 states and 2086 transitions. [2020-11-29 23:35:04,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:04,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 2086 transitions. [2020-11-29 23:35:04,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-11-29 23:35:04,967 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:04,968 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:05,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:35:05,195 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:05,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:05,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1711805663, now seen corresponding path program 1 times [2020-11-29 23:35:05,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:05,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892999139] [2020-11-29 23:35:05,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:05,364 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 87 proven. 8 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-11-29 23:35:05,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892999139] [2020-11-29 23:35:05,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848659044] [2020-11-29 23:35:05,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:35:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:05,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:35:05,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:05,543 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-11-29 23:35:05,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:35:05,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 23:35:05,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537270677] [2020-11-29 23:35:05,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:05,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:05,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:05,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:35:05,546 INFO L87 Difference]: Start difference. First operand 1846 states and 2086 transitions. Second operand 3 states. [2020-11-29 23:35:06,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:06,107 INFO L93 Difference]: Finished difference Result 3970 states and 4552 transitions. [2020-11-29 23:35:06,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:06,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-11-29 23:35:06,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:06,119 INFO L225 Difference]: With dead ends: 3970 [2020-11-29 23:35:06,119 INFO L226 Difference]: Without dead ends: 2266 [2020-11-29 23:35:06,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:35:06,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2266 states. [2020-11-29 23:35:06,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2266 to 2264. [2020-11-29 23:35:06,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2264 states. [2020-11-29 23:35:06,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2264 states to 2264 states and 2552 transitions. [2020-11-29 23:35:06,174 INFO L78 Accepts]: Start accepts. Automaton has 2264 states and 2552 transitions. Word has length 192 [2020-11-29 23:35:06,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:06,174 INFO L481 AbstractCegarLoop]: Abstraction has 2264 states and 2552 transitions. [2020-11-29 23:35:06,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:06,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2264 states and 2552 transitions. [2020-11-29 23:35:06,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-11-29 23:35:06,181 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:06,181 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:06,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:35:06,394 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:06,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:06,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1513632239, now seen corresponding path program 1 times [2020-11-29 23:35:06,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:06,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344623594] [2020-11-29 23:35:06,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:06,548 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-11-29 23:35:06,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344623594] [2020-11-29 23:35:06,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:06,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:35:06,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983217656] [2020-11-29 23:35:06,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:06,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:06,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:06,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:35:06,550 INFO L87 Difference]: Start difference. First operand 2264 states and 2552 transitions. Second operand 3 states. [2020-11-29 23:35:07,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:07,047 INFO L93 Difference]: Finished difference Result 5083 states and 5675 transitions. [2020-11-29 23:35:07,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:07,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-11-29 23:35:07,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:07,061 INFO L225 Difference]: With dead ends: 5083 [2020-11-29 23:35:07,061 INFO L226 Difference]: Without dead ends: 2961 [2020-11-29 23:35:07,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:35:07,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2020-11-29 23:35:07,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1981. [2020-11-29 23:35:07,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1981 states. [2020-11-29 23:35:07,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 2210 transitions. [2020-11-29 23:35:07,140 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 2210 transitions. Word has length 214 [2020-11-29 23:35:07,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:07,140 INFO L481 AbstractCegarLoop]: Abstraction has 1981 states and 2210 transitions. [2020-11-29 23:35:07,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:07,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 2210 transitions. [2020-11-29 23:35:07,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-11-29 23:35:07,147 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:07,147 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:07,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 23:35:07,148 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:07,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:07,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1147979716, now seen corresponding path program 1 times [2020-11-29 23:35:07,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:07,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265871933] [2020-11-29 23:35:07,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:07,465 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 68 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:07,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265871933] [2020-11-29 23:35:07,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236156905] [2020-11-29 23:35:07,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/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 [2020-11-29 23:35:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:07,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:35:07,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:07,638 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-11-29 23:35:07,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:35:07,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-29 23:35:07,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832994435] [2020-11-29 23:35:07,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:35:07,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:07,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:35:07,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:35:07,640 INFO L87 Difference]: Start difference. First operand 1981 states and 2210 transitions. Second operand 3 states. [2020-11-29 23:35:08,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:08,109 INFO L93 Difference]: Finished difference Result 3819 states and 4274 transitions. [2020-11-29 23:35:08,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:35:08,109 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-11-29 23:35:08,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:08,110 INFO L225 Difference]: With dead ends: 3819 [2020-11-29 23:35:08,110 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 23:35:08,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:35:08,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 23:35:08,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 23:35:08,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 23:35:08,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 23:35:08,114 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 214 [2020-11-29 23:35:08,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:08,115 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:35:08,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:35:08,115 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:35:08,115 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 23:35:08,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-11-29 23:35:08,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 23:35:08,576 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2020-11-29 23:35:08,700 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 26 [2020-11-29 23:35:08,704 INFO L274 CegarLoopResult]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,704 INFO L274 CegarLoopResult]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,704 INFO L274 CegarLoopResult]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,704 INFO L274 CegarLoopResult]: For program point L301(lines 301 423) no Hoare annotation was computed. [2020-11-29 23:35:08,705 INFO L274 CegarLoopResult]: For program point L235(lines 235 423) no Hoare annotation was computed. [2020-11-29 23:35:08,705 INFO L274 CegarLoopResult]: For program point L169(lines 169 423) no Hoare annotation was computed. [2020-11-29 23:35:08,705 INFO L274 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-11-29 23:35:08,705 INFO L274 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-11-29 23:35:08,705 INFO L274 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-11-29 23:35:08,705 INFO L274 CegarLoopResult]: For program point L303(lines 303 423) no Hoare annotation was computed. [2020-11-29 23:35:08,705 INFO L274 CegarLoopResult]: For program point L105(lines 105 423) no Hoare annotation was computed. [2020-11-29 23:35:08,705 INFO L274 CegarLoopResult]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,705 INFO L274 CegarLoopResult]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,705 INFO L274 CegarLoopResult]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,705 INFO L274 CegarLoopResult]: For program point L40(lines 40 423) no Hoare annotation was computed. [2020-11-29 23:35:08,706 INFO L274 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-11-29 23:35:08,706 INFO L274 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-11-29 23:35:08,706 INFO L274 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-11-29 23:35:08,706 INFO L274 CegarLoopResult]: For program point L371(lines 371 423) no Hoare annotation was computed. [2020-11-29 23:35:08,706 INFO L274 CegarLoopResult]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,706 INFO L274 CegarLoopResult]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,711 INFO L274 CegarLoopResult]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,711 INFO L274 CegarLoopResult]: For program point L307(lines 307 423) no Hoare annotation was computed. [2020-11-29 23:35:08,711 INFO L274 CegarLoopResult]: For program point L175(lines 175 423) no Hoare annotation was computed. [2020-11-29 23:35:08,712 INFO L274 CegarLoopResult]: For program point L109(lines 109 423) no Hoare annotation was computed. [2020-11-29 23:35:08,712 INFO L274 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-11-29 23:35:08,712 INFO L274 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-11-29 23:35:08,712 INFO L274 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-11-29 23:35:08,712 INFO L274 CegarLoopResult]: For program point L308(lines 308 317) no Hoare annotation was computed. [2020-11-29 23:35:08,712 INFO L274 CegarLoopResult]: For program point L242(lines 242 423) no Hoare annotation was computed. [2020-11-29 23:35:08,712 INFO L274 CegarLoopResult]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2020-11-29 23:35:08,712 INFO L274 CegarLoopResult]: For program point L45(lines 45 423) no Hoare annotation was computed. [2020-11-29 23:35:08,712 INFO L274 CegarLoopResult]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,712 INFO L274 CegarLoopResult]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,712 INFO L274 CegarLoopResult]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,712 INFO L274 CegarLoopResult]: For program point L244(lines 244 423) no Hoare annotation was computed. [2020-11-29 23:35:08,713 INFO L274 CegarLoopResult]: For program point L575(line 575) no Hoare annotation was computed. [2020-11-29 23:35:08,713 INFO L274 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-11-29 23:35:08,713 INFO L274 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-11-29 23:35:08,713 INFO L274 CegarLoopResult]: For program point L179(lines 179 423) no Hoare annotation was computed. [2020-11-29 23:35:08,713 INFO L274 CegarLoopResult]: For program point L378(lines 378 423) no Hoare annotation was computed. [2020-11-29 23:35:08,713 INFO L274 CegarLoopResult]: For program point L48(lines 48 423) no Hoare annotation was computed. [2020-11-29 23:35:08,713 INFO L274 CegarLoopResult]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,713 INFO L274 CegarLoopResult]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,713 INFO L274 CegarLoopResult]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,713 INFO L274 CegarLoopResult]: For program point L247(lines 247 423) no Hoare annotation was computed. [2020-11-29 23:35:08,713 INFO L274 CegarLoopResult]: For program point L578(line 578) no Hoare annotation was computed. [2020-11-29 23:35:08,713 INFO L274 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-11-29 23:35:08,714 INFO L274 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-11-29 23:35:08,714 INFO L274 CegarLoopResult]: For program point L248(lines 248 256) no Hoare annotation was computed. [2020-11-29 23:35:08,714 INFO L274 CegarLoopResult]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2020-11-29 23:35:08,714 INFO L274 CegarLoopResult]: For program point L116(lines 116 423) no Hoare annotation was computed. [2020-11-29 23:35:08,714 INFO L274 CegarLoopResult]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,714 INFO L274 CegarLoopResult]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,714 INFO L274 CegarLoopResult]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,714 INFO L274 CegarLoopResult]: For program point L52(lines 52 423) no Hoare annotation was computed. [2020-11-29 23:35:08,714 INFO L274 CegarLoopResult]: For program point L581(line 581) no Hoare annotation was computed. [2020-11-29 23:35:08,714 INFO L274 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-11-29 23:35:08,714 INFO L274 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-11-29 23:35:08,715 INFO L274 CegarLoopResult]: For program point L185(lines 185 423) no Hoare annotation was computed. [2020-11-29 23:35:08,715 INFO L274 CegarLoopResult]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,715 INFO L274 CegarLoopResult]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,715 INFO L274 CegarLoopResult]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,715 INFO L274 CegarLoopResult]: For program point L385(lines 385 423) no Hoare annotation was computed. [2020-11-29 23:35:08,715 INFO L274 CegarLoopResult]: For program point L319(lines 319 423) no Hoare annotation was computed. [2020-11-29 23:35:08,715 INFO L274 CegarLoopResult]: For program point L584(line 584) no Hoare annotation was computed. [2020-11-29 23:35:08,715 INFO L274 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-11-29 23:35:08,715 INFO L274 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-11-29 23:35:08,715 INFO L274 CegarLoopResult]: For program point L189(lines 189 423) no Hoare annotation was computed. [2020-11-29 23:35:08,715 INFO L274 CegarLoopResult]: For program point L123(lines 123 423) no Hoare annotation was computed. [2020-11-29 23:35:08,715 INFO L274 CegarLoopResult]: For program point L57(lines 57 423) no Hoare annotation was computed. [2020-11-29 23:35:08,716 INFO L274 CegarLoopResult]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,716 INFO L274 CegarLoopResult]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,716 INFO L274 CegarLoopResult]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,716 INFO L274 CegarLoopResult]: For program point L388(lines 388 423) no Hoare annotation was computed. [2020-11-29 23:35:08,716 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 23:35:08,716 INFO L274 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-11-29 23:35:08,716 INFO L274 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-11-29 23:35:08,716 INFO L274 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-11-29 23:35:08,716 INFO L274 CegarLoopResult]: For program point L390(lines 390 423) no Hoare annotation was computed. [2020-11-29 23:35:08,716 INFO L274 CegarLoopResult]: For program point L324(lines 324 423) no Hoare annotation was computed. [2020-11-29 23:35:08,716 INFO L274 CegarLoopResult]: For program point L258(lines 258 423) no Hoare annotation was computed. [2020-11-29 23:35:08,716 INFO L274 CegarLoopResult]: For program point L60(lines 60 423) no Hoare annotation was computed. [2020-11-29 23:35:08,717 INFO L274 CegarLoopResult]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,718 INFO L274 CegarLoopResult]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,718 INFO L274 CegarLoopResult]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,718 INFO L274 CegarLoopResult]: For program point L391(lines 391 397) no Hoare annotation was computed. [2020-11-29 23:35:08,718 INFO L274 CegarLoopResult]: For program point L325(lines 325 336) no Hoare annotation was computed. [2020-11-29 23:35:08,718 INFO L274 CegarLoopResult]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2020-11-29 23:35:08,718 INFO L274 CegarLoopResult]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2020-11-29 23:35:08,718 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-11-29 23:35:08,718 INFO L274 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-11-29 23:35:08,718 INFO L274 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-11-29 23:35:08,718 INFO L274 CegarLoopResult]: For program point L195(lines 195 423) no Hoare annotation was computed. [2020-11-29 23:35:08,718 INFO L274 CegarLoopResult]: For program point L129(lines 129 423) no Hoare annotation was computed. [2020-11-29 23:35:08,718 INFO L274 CegarLoopResult]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,719 INFO L274 CegarLoopResult]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,719 INFO L274 CegarLoopResult]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,719 INFO L274 CegarLoopResult]: For program point L64(lines 64 423) no Hoare annotation was computed. [2020-11-29 23:35:08,719 INFO L274 CegarLoopResult]: For program point L593(line 593) no Hoare annotation was computed. [2020-11-29 23:35:08,719 INFO L274 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-11-29 23:35:08,719 INFO L274 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-11-29 23:35:08,719 INFO L274 CegarLoopResult]: For program point L263(lines 263 423) no Hoare annotation was computed. [2020-11-29 23:35:08,719 INFO L274 CegarLoopResult]: For program point L197(lines 197 423) no Hoare annotation was computed. [2020-11-29 23:35:08,719 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 23:35:08,719 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 23:35:08,719 INFO L274 CegarLoopResult]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,720 INFO L274 CegarLoopResult]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,720 INFO L274 CegarLoopResult]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,720 INFO L274 CegarLoopResult]: For program point L199(lines 199 423) no Hoare annotation was computed. [2020-11-29 23:35:08,720 INFO L274 CegarLoopResult]: For program point L133(lines 133 423) no Hoare annotation was computed. [2020-11-29 23:35:08,720 INFO L274 CegarLoopResult]: For program point L596(line 596) no Hoare annotation was computed. [2020-11-29 23:35:08,720 INFO L274 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-11-29 23:35:08,720 INFO L274 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-11-29 23:35:08,720 INFO L274 CegarLoopResult]: For program point L399(lines 399 423) no Hoare annotation was computed. [2020-11-29 23:35:08,720 INFO L274 CegarLoopResult]: For program point L201(lines 201 423) no Hoare annotation was computed. [2020-11-29 23:35:08,720 INFO L274 CegarLoopResult]: For program point L69(lines 69 423) no Hoare annotation was computed. [2020-11-29 23:35:08,720 INFO L274 CegarLoopResult]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,720 INFO L274 CegarLoopResult]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,721 INFO L274 CegarLoopResult]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,721 INFO L274 CegarLoopResult]: For program point L599(line 599) no Hoare annotation was computed. [2020-11-29 23:35:08,721 INFO L274 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-11-29 23:35:08,721 INFO L274 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-11-29 23:35:08,722 INFO L274 CegarLoopResult]: For program point L269(lines 269 423) no Hoare annotation was computed. [2020-11-29 23:35:08,722 INFO L274 CegarLoopResult]: For program point L204(lines 204 423) no Hoare annotation was computed. [2020-11-29 23:35:08,722 INFO L274 CegarLoopResult]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,722 INFO L274 CegarLoopResult]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,722 INFO L274 CegarLoopResult]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,722 INFO L274 CegarLoopResult]: For program point L271(lines 271 423) no Hoare annotation was computed. [2020-11-29 23:35:08,722 INFO L274 CegarLoopResult]: For program point L602(line 602) no Hoare annotation was computed. [2020-11-29 23:35:08,722 INFO L274 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-11-29 23:35:08,722 INFO L274 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-11-29 23:35:08,722 INFO L274 CegarLoopResult]: For program point L404(lines 404 423) no Hoare annotation was computed. [2020-11-29 23:35:08,722 INFO L274 CegarLoopResult]: For program point L338(lines 338 423) no Hoare annotation was computed. [2020-11-29 23:35:08,723 INFO L274 CegarLoopResult]: For program point L272(lines 272 284) no Hoare annotation was computed. [2020-11-29 23:35:08,723 INFO L274 CegarLoopResult]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2020-11-29 23:35:08,723 INFO L274 CegarLoopResult]: For program point L140(lines 140 423) no Hoare annotation was computed. [2020-11-29 23:35:08,723 INFO L274 CegarLoopResult]: For program point L75(lines 75 423) no Hoare annotation was computed. [2020-11-29 23:35:08,723 INFO L274 CegarLoopResult]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2020-11-29 23:35:08,723 INFO L274 CegarLoopResult]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,723 INFO L274 CegarLoopResult]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,723 INFO L274 CegarLoopResult]: For program point L208(lines 208 423) no Hoare annotation was computed. [2020-11-29 23:35:08,723 INFO L274 CegarLoopResult]: For program point L605(line 605) no Hoare annotation was computed. [2020-11-29 23:35:08,723 INFO L274 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-11-29 23:35:08,723 INFO L274 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-11-29 23:35:08,723 INFO L274 CegarLoopResult]: For program point L341(lines 341 423) no Hoare annotation was computed. [2020-11-29 23:35:08,724 INFO L274 CegarLoopResult]: For program point L408(lines 408 423) no Hoare annotation was computed. [2020-11-29 23:35:08,724 INFO L274 CegarLoopResult]: For program point L342(lines 342 345) no Hoare annotation was computed. [2020-11-29 23:35:08,724 INFO L274 CegarLoopResult]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2020-11-29 23:35:08,724 INFO L274 CegarLoopResult]: For program point L144(lines 144 423) no Hoare annotation was computed. [2020-11-29 23:35:08,724 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 23:35:08,725 INFO L270 CegarLoopResult]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse3 (= ~a19~0 1)) (.cse2 (not (= ~a11~0 1))) (.cse1 (= ~a25~0 0)) (.cse5 (<= 8 ~a17~0)) (.cse0 (<= ~a17~0 8)) (.cse4 (<= ~a28~0 7))) (or (and (<= 9 ~a28~0) .cse0) (and .cse1 .cse2 .cse0) (and (= ~a25~0 ~a11~0) .cse3 .cse0 .cse4) (and .cse3 .cse5 .cse2 .cse0) (and .cse1 .cse4 .cse0) (and .cse5 .cse0 .cse4))) [2020-11-29 23:35:08,726 INFO L274 CegarLoopResult]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,726 INFO L274 CegarLoopResult]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,726 INFO L274 CegarLoopResult]: For program point L79(lines 79 423) no Hoare annotation was computed. [2020-11-29 23:35:08,726 INFO L274 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-11-29 23:35:08,726 INFO L274 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-11-29 23:35:08,726 INFO L274 CegarLoopResult]: For program point L212(lines 212 423) no Hoare annotation was computed. [2020-11-29 23:35:08,726 INFO L274 CegarLoopResult]: For program point L213(lines 213 220) no Hoare annotation was computed. [2020-11-29 23:35:08,726 INFO L274 CegarLoopResult]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2020-11-29 23:35:08,726 INFO L277 CegarLoopResult]: At program point L610(lines 610 627) the Hoare annotation is: true [2020-11-29 23:35:08,726 INFO L274 CegarLoopResult]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,726 INFO L274 CegarLoopResult]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,727 INFO L274 CegarLoopResult]: For program point L412(lines 412 423) no Hoare annotation was computed. [2020-11-29 23:35:08,727 INFO L274 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-11-29 23:35:08,727 INFO L274 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-11-29 23:35:08,727 INFO L274 CegarLoopResult]: For program point L347(lines 347 423) no Hoare annotation was computed. [2020-11-29 23:35:08,727 INFO L274 CegarLoopResult]: For program point L149(lines 149 423) no Hoare annotation was computed. [2020-11-29 23:35:08,727 INFO L274 CegarLoopResult]: For program point L414(lines 414 423) no Hoare annotation was computed. [2020-11-29 23:35:08,727 INFO L274 CegarLoopResult]: For program point L348(lines 348 357) no Hoare annotation was computed. [2020-11-29 23:35:08,727 INFO L274 CegarLoopResult]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2020-11-29 23:35:08,727 INFO L274 CegarLoopResult]: For program point L84(lines 84 423) no Hoare annotation was computed. [2020-11-29 23:35:08,727 INFO L274 CegarLoopResult]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,728 INFO L274 CegarLoopResult]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,728 INFO L274 CegarLoopResult]: For program point L85(lines 85 90) no Hoare annotation was computed. [2020-11-29 23:35:08,728 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2020-11-29 23:35:08,728 INFO L274 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-11-29 23:35:08,728 INFO L274 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-11-29 23:35:08,728 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 23:35:08,728 INFO L274 CegarLoopResult]: For program point L417(lines 417 423) no Hoare annotation was computed. [2020-11-29 23:35:08,729 INFO L274 CegarLoopResult]: For program point L153(lines 153 423) no Hoare annotation was computed. [2020-11-29 23:35:08,729 INFO L270 CegarLoopResult]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse3 (= ~a19~0 1)) (.cse2 (not (= ~a11~0 1))) (.cse1 (= ~a25~0 0)) (.cse5 (<= 8 ~a17~0)) (.cse0 (<= ~a17~0 8)) (.cse4 (<= ~a28~0 7))) (or (and (<= 9 ~a28~0) .cse0) (and .cse1 .cse2 .cse0) (and (= ~a25~0 ~a11~0) .cse3 .cse0 .cse4) (and .cse3 .cse5 .cse2 .cse0) (and .cse1 .cse4 .cse0) (and .cse5 .cse0 .cse4))) [2020-11-29 23:35:08,729 INFO L274 CegarLoopResult]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,729 INFO L274 CegarLoopResult]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,729 INFO L274 CegarLoopResult]: For program point L286(lines 286 423) no Hoare annotation was computed. [2020-11-29 23:35:08,729 INFO L274 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-11-29 23:35:08,730 INFO L274 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-11-29 23:35:08,730 INFO L274 CegarLoopResult]: For program point L419(lines 419 423) no Hoare annotation was computed. [2020-11-29 23:35:08,730 INFO L274 CegarLoopResult]: For program point L222(lines 222 423) no Hoare annotation was computed. [2020-11-29 23:35:08,730 INFO L274 CegarLoopResult]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,730 INFO L274 CegarLoopResult]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,730 INFO L274 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-11-29 23:35:08,730 INFO L274 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-11-29 23:35:08,730 INFO L274 CegarLoopResult]: For program point L290(lines 290 423) no Hoare annotation was computed. [2020-11-29 23:35:08,730 INFO L274 CegarLoopResult]: For program point L158(lines 158 423) no Hoare annotation was computed. [2020-11-29 23:35:08,730 INFO L274 CegarLoopResult]: For program point L92(lines 92 423) no Hoare annotation was computed. [2020-11-29 23:35:08,730 INFO L274 CegarLoopResult]: For program point L621(line 621) no Hoare annotation was computed. [2020-11-29 23:35:08,730 INFO L274 CegarLoopResult]: For program point L225(lines 225 423) no Hoare annotation was computed. [2020-11-29 23:35:08,731 INFO L274 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2020-11-29 23:35:08,731 INFO L274 CegarLoopResult]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2020-11-29 23:35:08,731 INFO L274 CegarLoopResult]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,731 INFO L274 CegarLoopResult]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,731 INFO L274 CegarLoopResult]: For program point L424(lines 424 426) no Hoare annotation was computed. [2020-11-29 23:35:08,731 INFO L274 CegarLoopResult]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,731 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 23:35:08,732 INFO L274 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-11-29 23:35:08,732 INFO L274 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-11-29 23:35:08,732 INFO L274 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-11-29 23:35:08,732 INFO L274 CegarLoopResult]: For program point L359(lines 359 423) no Hoare annotation was computed. [2020-11-29 23:35:08,732 INFO L274 CegarLoopResult]: For program point L293(lines 293 423) no Hoare annotation was computed. [2020-11-29 23:35:08,732 INFO L274 CegarLoopResult]: For program point L228(lines 228 423) no Hoare annotation was computed. [2020-11-29 23:35:08,732 INFO L274 CegarLoopResult]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,732 INFO L274 CegarLoopResult]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,733 INFO L274 CegarLoopResult]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,733 INFO L274 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-11-29 23:35:08,733 INFO L274 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-11-29 23:35:08,733 INFO L274 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-11-29 23:35:08,733 INFO L274 CegarLoopResult]: For program point L296(lines 296 423) no Hoare annotation was computed. [2020-11-29 23:35:08,734 INFO L274 CegarLoopResult]: For program point L164(lines 164 423) no Hoare annotation was computed. [2020-11-29 23:35:08,734 INFO L274 CegarLoopResult]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,734 INFO L274 CegarLoopResult]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,734 INFO L274 CegarLoopResult]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2020-11-29 23:35:08,734 INFO L274 CegarLoopResult]: For program point L364(lines 364 423) no Hoare annotation was computed. [2020-11-29 23:35:08,734 INFO L274 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-11-29 23:35:08,734 INFO L274 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-11-29 23:35:08,735 INFO L274 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-11-29 23:35:08,735 INFO L274 CegarLoopResult]: For program point L233(lines 233 423) no Hoare annotation was computed. [2020-11-29 23:35:08,735 INFO L274 CegarLoopResult]: For program point L101(lines 101 423) no Hoare annotation was computed. [2020-11-29 23:35:08,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:35:08 BoogieIcfgContainer [2020-11-29 23:35:08,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:35:08,775 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:35:08,775 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:35:08,775 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:35:08,776 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:34:56" (3/4) ... [2020-11-29 23:35:08,780 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 23:35:08,812 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 23:35:08,814 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 23:35:08,815 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:35:08,816 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:35:08,988 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f312a0ef-d424-44af-8728-19bd6797f0fd/bin/uautomizer/witness.graphml [2020-11-29 23:35:08,988 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:35:08,990 INFO L168 Benchmark]: Toolchain (without parser) took 15139.11 ms. Allocated memory was 109.1 MB in the beginning and 364.9 MB in the end (delta: 255.9 MB). Free memory was 75.6 MB in the beginning and 127.8 MB in the end (delta: -52.2 MB). Peak memory consumption was 203.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:08,990 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 79.7 MB. Free memory was 50.8 MB in the beginning and 50.8 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:35:08,990 INFO L168 Benchmark]: CACSL2BoogieTranslator took 697.76 ms. Allocated memory is still 109.1 MB. Free memory was 75.6 MB in the beginning and 69.7 MB in the end (delta: 5.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:08,991 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.11 ms. Allocated memory is still 109.1 MB. Free memory was 69.7 MB in the beginning and 64.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:08,991 INFO L168 Benchmark]: Boogie Preprocessor took 61.53 ms. Allocated memory is still 109.1 MB. Free memory was 64.2 MB in the beginning and 60.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:08,991 INFO L168 Benchmark]: RCFGBuilder took 1477.66 ms. Allocated memory is still 109.1 MB. Free memory was 60.1 MB in the beginning and 42.5 MB in the end (delta: 17.6 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:08,992 INFO L168 Benchmark]: TraceAbstraction took 12587.90 ms. Allocated memory was 109.1 MB in the beginning and 364.9 MB in the end (delta: 255.9 MB). Free memory was 41.9 MB in the beginning and 143.7 MB in the end (delta: -101.8 MB). Peak memory consumption was 154.0 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:08,993 INFO L168 Benchmark]: Witness Printer took 213.66 ms. Allocated memory is still 364.9 MB. Free memory was 143.7 MB in the beginning and 127.8 MB in the end (delta: 15.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:08,995 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 79.7 MB. Free memory was 50.8 MB in the beginning and 50.8 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 697.76 ms. Allocated memory is still 109.1 MB. Free memory was 75.6 MB in the beginning and 69.7 MB in the end (delta: 5.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.11 ms. Allocated memory is still 109.1 MB. Free memory was 69.7 MB in the beginning and 64.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.53 ms. Allocated memory is still 109.1 MB. Free memory was 64.2 MB in the beginning and 60.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1477.66 ms. Allocated memory is still 109.1 MB. Free memory was 60.1 MB in the beginning and 42.5 MB in the end (delta: 17.6 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12587.90 ms. Allocated memory was 109.1 MB in the beginning and 364.9 MB in the end (delta: 255.9 MB). Free memory was 41.9 MB in the beginning and 143.7 MB in the end (delta: -101.8 MB). Peak memory consumption was 154.0 MB. Max. memory is 16.1 GB. * Witness Printer took 213.66 ms. Allocated memory is still 364.9 MB. Free memory was 143.7 MB in the beginning and 127.8 MB in the end (delta: 15.9 MB). Peak memory consumption was 16.8 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: (((((9 <= a28 && a17 <= 8) || ((a25 == 0 && !(a11 == 1)) && a17 <= 8)) || (((a25 == a11 && a19 == 1) && a17 <= 8) && a28 <= 7)) || (((a19 == 1 && 8 <= a17) && !(a11 == 1)) && a17 <= 8)) || ((a25 == 0 && a28 <= 7) && a17 <= 8)) || ((8 <= a17 && a17 <= 8) && a28 <= 7) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((9 <= a28 && a17 <= 8) || ((a25 == 0 && !(a11 == 1)) && a17 <= 8)) || (((a25 == a11 && a19 == 1) && a17 <= 8) && a28 <= 7)) || (((a19 == 1 && 8 <= a17) && !(a11 == 1)) && a17 <= 8)) || ((a25 == 0 && a28 <= 7) && a17 <= 8)) || ((8 <= a17 && a17 <= 8) && a28 <= 7) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.0s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 907 SDtfs, 1611 SDslu, 154 SDs, 0 SdLazy, 4186 SolverSat, 722 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 905 GetRequests, 877 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2264occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 1866 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 41 NumberOfFragments, 133 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2392 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 268 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 2645 NumberOfCodeBlocks, 2645 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2629 ConstructedInterpolants, 0 QuantifiedInterpolants, 1290978 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1695 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 1178/1258 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...