./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label47.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label47.c -s /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 263f5bcc0dd18a6a1141604b5838ae66dccd2a0e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 10:07:28,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:07:28,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:07:28,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:07:28,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:07:28,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:07:28,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:07:28,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:07:28,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:07:28,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:07:28,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:07:28,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:07:28,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:07:28,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:07:28,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:07:28,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:07:28,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:07:28,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:07:28,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:07:28,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:07:28,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:07:28,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:07:28,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:07:28,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:07:28,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:07:28,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:07:28,897 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:07:28,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:07:28,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:07:28,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:07:28,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:07:28,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:07:28,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:07:28,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:07:28,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:07:28,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:07:28,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:07:28,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:07:28,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:07:28,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:07:28,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:07:28,902 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 10:07:28,912 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:07:28,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:07:28,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:07:28,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:07:28,913 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:07:28,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:07:28,913 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:07:28,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:07:28,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:07:28,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:07:28,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:07:28,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:07:28,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:07:28,914 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:07:28,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:07:28,914 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:07:28,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:07:28,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:07:28,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:07:28,915 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:07:28,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:07:28,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:07:28,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:07:28,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:07:28,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:07:28,916 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:07:28,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:07:28,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:07:28,916 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:07:28,916 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 263f5bcc0dd18a6a1141604b5838ae66dccd2a0e [2019-12-07 10:07:29,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:07:29,023 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:07:29,026 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:07:29,027 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:07:29,027 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:07:29,027 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label47.c [2019-12-07 10:07:29,064 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/bin/uautomizer/data/74fe2b714/ade898f3a28c414385ea8a275281f83b/FLAG8f0adc4c7 [2019-12-07 10:07:29,612 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:07:29,612 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/sv-benchmarks/c/eca-rers2012/Problem14_label47.c [2019-12-07 10:07:29,622 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/bin/uautomizer/data/74fe2b714/ade898f3a28c414385ea8a275281f83b/FLAG8f0adc4c7 [2019-12-07 10:07:30,053 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/bin/uautomizer/data/74fe2b714/ade898f3a28c414385ea8a275281f83b [2019-12-07 10:07:30,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:07:30,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:07:30,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:07:30,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:07:30,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:07:30,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:30" (1/1) ... [2019-12-07 10:07:30,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4562956c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30, skipping insertion in model container [2019-12-07 10:07:30,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:30" (1/1) ... [2019-12-07 10:07:30,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:07:30,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:07:30,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:07:30,378 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:07:30,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:07:30,459 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:07:30,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30 WrapperNode [2019-12-07 10:07:30,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:07:30,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:07:30,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:07:30,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:07:30,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (1/1) ... [2019-12-07 10:07:30,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (1/1) ... [2019-12-07 10:07:30,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:07:30,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:07:30,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:07:30,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:07:30,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (1/1) ... [2019-12-07 10:07:30,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (1/1) ... [2019-12-07 10:07:30,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (1/1) ... [2019-12-07 10:07:30,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (1/1) ... [2019-12-07 10:07:30,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (1/1) ... [2019-12-07 10:07:30,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (1/1) ... [2019-12-07 10:07:30,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (1/1) ... [2019-12-07 10:07:30,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:07:30,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:07:30,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:07:30,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:07:30,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:07:30,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:07:30,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:07:31,422 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:07:31,422 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 10:07:31,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:31 BoogieIcfgContainer [2019-12-07 10:07:31,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:07:31,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:07:31,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:07:31,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:07:31,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:07:30" (1/3) ... [2019-12-07 10:07:31,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e86e948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:31, skipping insertion in model container [2019-12-07 10:07:31,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:30" (2/3) ... [2019-12-07 10:07:31,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e86e948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:31, skipping insertion in model container [2019-12-07 10:07:31,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:31" (3/3) ... [2019-12-07 10:07:31,429 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label47.c [2019-12-07 10:07:31,436 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:07:31,441 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 10:07:31,449 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 10:07:31,468 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:07:31,468 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:07:31,468 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:07:31,469 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:07:31,469 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:07:31,469 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:07:31,469 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:07:31,469 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:07:31,485 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2019-12-07 10:07:31,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 10:07:31,490 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:31,491 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:31,491 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:31,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:31,496 INFO L82 PathProgramCache]: Analyzing trace with hash 2113343065, now seen corresponding path program 1 times [2019-12-07 10:07:31,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:31,502 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426610881] [2019-12-07 10:07:31,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:31,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:31,662 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426610881] [2019-12-07 10:07:31,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:31,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:07:31,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700160878] [2019-12-07 10:07:31,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:07:31,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:31,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:07:31,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:07:31,684 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 4 states. [2019-12-07 10:07:32,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:32,666 INFO L93 Difference]: Finished difference Result 850 states and 1558 transitions. [2019-12-07 10:07:32,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:07:32,668 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2019-12-07 10:07:32,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:32,680 INFO L225 Difference]: With dead ends: 850 [2019-12-07 10:07:32,681 INFO L226 Difference]: Without dead ends: 538 [2019-12-07 10:07:32,684 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:07:32,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-07 10:07:32,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-07 10:07:32,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-07 10:07:32,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 796 transitions. [2019-12-07 10:07:32,733 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 796 transitions. Word has length 33 [2019-12-07 10:07:32,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:32,733 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 796 transitions. [2019-12-07 10:07:32,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:07:32,734 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 796 transitions. [2019-12-07 10:07:32,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-12-07 10:07:32,737 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:32,737 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:32,737 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:32,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:32,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1915270461, now seen corresponding path program 1 times [2019-12-07 10:07:32,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:32,738 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458392040] [2019-12-07 10:07:32,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:32,840 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:07:32,841 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458392040] [2019-12-07 10:07:32,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:32,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:07:32,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468928524] [2019-12-07 10:07:32,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:07:32,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:32,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:07:32,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:07:32,844 INFO L87 Difference]: Start difference. First operand 538 states and 796 transitions. Second operand 4 states. [2019-12-07 10:07:33,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:33,570 INFO L93 Difference]: Finished difference Result 2142 states and 3176 transitions. [2019-12-07 10:07:33,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:07:33,571 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 108 [2019-12-07 10:07:33,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:33,577 INFO L225 Difference]: With dead ends: 2142 [2019-12-07 10:07:33,577 INFO L226 Difference]: Without dead ends: 1606 [2019-12-07 10:07:33,579 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:07:33,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2019-12-07 10:07:33,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2019-12-07 10:07:33,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2019-12-07 10:07:33,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1939 transitions. [2019-12-07 10:07:33,607 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1939 transitions. Word has length 108 [2019-12-07 10:07:33,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:33,608 INFO L462 AbstractCegarLoop]: Abstraction has 1428 states and 1939 transitions. [2019-12-07 10:07:33,608 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:07:33,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1939 transitions. [2019-12-07 10:07:33,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-12-07 10:07:33,611 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:33,612 INFO L410 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:33,612 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:33,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:33,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1105444071, now seen corresponding path program 1 times [2019-12-07 10:07:33,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:33,613 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209709739] [2019-12-07 10:07:33,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:33,712 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-12-07 10:07:33,712 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209709739] [2019-12-07 10:07:33,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:33,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 10:07:33,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765061183] [2019-12-07 10:07:33,713 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:07:33,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:33,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:07:33,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:07:33,713 INFO L87 Difference]: Start difference. First operand 1428 states and 1939 transitions. Second operand 4 states. [2019-12-07 10:07:34,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:34,566 INFO L93 Difference]: Finished difference Result 4634 states and 6198 transitions. [2019-12-07 10:07:34,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:07:34,566 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 209 [2019-12-07 10:07:34,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:34,578 INFO L225 Difference]: With dead ends: 4634 [2019-12-07 10:07:34,578 INFO L226 Difference]: Without dead ends: 3208 [2019-12-07 10:07:34,580 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:07:34,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2019-12-07 10:07:34,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2019-12-07 10:07:34,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-12-07 10:07:34,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3806 transitions. [2019-12-07 10:07:34,625 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3806 transitions. Word has length 209 [2019-12-07 10:07:34,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:34,626 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3806 transitions. [2019-12-07 10:07:34,626 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:07:34,626 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3806 transitions. [2019-12-07 10:07:34,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-12-07 10:07:34,628 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:34,628 INFO L410 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, 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, 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] [2019-12-07 10:07:34,628 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:34,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:34,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1622285307, now seen corresponding path program 1 times [2019-12-07 10:07:34,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:34,629 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467987136] [2019-12-07 10:07:34,629 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 134 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 10:07:34,806 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467987136] [2019-12-07 10:07:34,806 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863433044] [2019-12-07 10:07:34,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 10:07:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:34,866 INFO L264 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:07:34,873 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:07:34,920 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-12-07 10:07:34,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 10:07:34,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2019-12-07 10:07:34,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117362901] [2019-12-07 10:07:34,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:07:34,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:34,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:07:34,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:07:34,921 INFO L87 Difference]: Start difference. First operand 3030 states and 3806 transitions. Second operand 3 states. [2019-12-07 10:07:35,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:35,486 INFO L93 Difference]: Finished difference Result 5880 states and 7426 transitions. [2019-12-07 10:07:35,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:07:35,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2019-12-07 10:07:35,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:35,497 INFO L225 Difference]: With dead ends: 5880 [2019-12-07 10:07:35,497 INFO L226 Difference]: Without dead ends: 3030 [2019-12-07 10:07:35,500 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 220 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:07:35,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2019-12-07 10:07:35,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2019-12-07 10:07:35,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-12-07 10:07:35,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3661 transitions. [2019-12-07 10:07:35,544 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3661 transitions. Word has length 221 [2019-12-07 10:07:35,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:35,545 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3661 transitions. [2019-12-07 10:07:35,545 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:07:35,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3661 transitions. [2019-12-07 10:07:35,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2019-12-07 10:07:35,549 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:35,549 INFO L410 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, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:35,749 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 10:07:35,750 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:35,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:35,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1634422510, now seen corresponding path program 1 times [2019-12-07 10:07:35,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:35,750 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063209112] [2019-12-07 10:07:35,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:35,941 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 238 proven. 4 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-12-07 10:07:35,942 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063209112] [2019-12-07 10:07:35,942 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967248641] [2019-12-07 10:07:35,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/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 [2019-12-07 10:07:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:36,014 INFO L264 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:07:36,019 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:07:36,085 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2019-12-07 10:07:36,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 10:07:36,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2019-12-07 10:07:36,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777678749] [2019-12-07 10:07:36,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:07:36,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:36,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:07:36,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:07:36,087 INFO L87 Difference]: Start difference. First operand 3030 states and 3661 transitions. Second operand 3 states. [2019-12-07 10:07:36,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:36,561 INFO L93 Difference]: Finished difference Result 6770 states and 8231 transitions. [2019-12-07 10:07:36,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:07:36,561 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 297 [2019-12-07 10:07:36,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:36,574 INFO L225 Difference]: With dead ends: 6770 [2019-12-07 10:07:36,574 INFO L226 Difference]: Without dead ends: 3742 [2019-12-07 10:07:36,577 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 296 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:07:36,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2019-12-07 10:07:36,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3030. [2019-12-07 10:07:36,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-12-07 10:07:36,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3621 transitions. [2019-12-07 10:07:36,623 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3621 transitions. Word has length 297 [2019-12-07 10:07:36,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:36,624 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3621 transitions. [2019-12-07 10:07:36,624 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:07:36,624 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3621 transitions. [2019-12-07 10:07:36,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2019-12-07 10:07:36,628 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:36,628 INFO L410 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, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:36,829 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 10:07:36,829 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:36,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:36,829 INFO L82 PathProgramCache]: Analyzing trace with hash 578704993, now seen corresponding path program 1 times [2019-12-07 10:07:36,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:36,830 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191538162] [2019-12-07 10:07:36,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:37,046 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 242 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2019-12-07 10:07:37,047 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191538162] [2019-12-07 10:07:37,047 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67387483] [2019-12-07 10:07:37,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/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 [2019-12-07 10:07:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:37,117 INFO L264 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 10:07:37,121 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:07:37,221 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2019-12-07 10:07:37,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 10:07:37,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-12-07 10:07:37,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588712307] [2019-12-07 10:07:37,222 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:07:37,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:37,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:07:37,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:07:37,222 INFO L87 Difference]: Start difference. First operand 3030 states and 3621 transitions. Second operand 4 states. [2019-12-07 10:07:37,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:37,764 INFO L93 Difference]: Finished difference Result 6087 states and 7269 transitions. [2019-12-07 10:07:37,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:07:37,764 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 328 [2019-12-07 10:07:37,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:37,775 INFO L225 Difference]: With dead ends: 6087 [2019-12-07 10:07:37,775 INFO L226 Difference]: Without dead ends: 3208 [2019-12-07 10:07:37,777 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 327 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:07:37,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2019-12-07 10:07:37,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2019-12-07 10:07:37,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-12-07 10:07:37,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3281 transitions. [2019-12-07 10:07:37,815 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3281 transitions. Word has length 328 [2019-12-07 10:07:37,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:37,815 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3281 transitions. [2019-12-07 10:07:37,815 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:07:37,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3281 transitions. [2019-12-07 10:07:37,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2019-12-07 10:07:37,823 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:37,823 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:38,024 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 10:07:38,025 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:38,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:38,026 INFO L82 PathProgramCache]: Analyzing trace with hash 199018323, now seen corresponding path program 1 times [2019-12-07 10:07:38,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:38,027 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384172845] [2019-12-07 10:07:38,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:38,531 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 412 proven. 65 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2019-12-07 10:07:38,531 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384172845] [2019-12-07 10:07:38,531 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91956155] [2019-12-07 10:07:38,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/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 [2019-12-07 10:07:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:38,611 INFO L264 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 10:07:38,616 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:07:38,903 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 490 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2019-12-07 10:07:38,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 10:07:38,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2019-12-07 10:07:38,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953062179] [2019-12-07 10:07:38,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 10:07:38,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:38,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 10:07:38,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2019-12-07 10:07:38,905 INFO L87 Difference]: Start difference. First operand 3030 states and 3281 transitions. Second operand 7 states. [2019-12-07 10:07:39,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:39,426 INFO L93 Difference]: Finished difference Result 6108 states and 6615 transitions. [2019-12-07 10:07:39,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 10:07:39,426 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 423 [2019-12-07 10:07:39,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:39,437 INFO L225 Difference]: With dead ends: 6108 [2019-12-07 10:07:39,437 INFO L226 Difference]: Without dead ends: 3208 [2019-12-07 10:07:39,438 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 418 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2019-12-07 10:07:39,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2019-12-07 10:07:39,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2019-12-07 10:07:39,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-12-07 10:07:39,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3226 transitions. [2019-12-07 10:07:39,487 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3226 transitions. Word has length 423 [2019-12-07 10:07:39,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:39,488 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3226 transitions. [2019-12-07 10:07:39,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 10:07:39,488 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3226 transitions. [2019-12-07 10:07:39,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2019-12-07 10:07:39,502 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:39,502 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2019-12-07 10:07:39,703 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 10:07:39,704 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:39,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:39,705 INFO L82 PathProgramCache]: Analyzing trace with hash -2051042170, now seen corresponding path program 1 times [2019-12-07 10:07:39,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:39,706 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264423421] [2019-12-07 10:07:39,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:40,396 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 608 proven. 4 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2019-12-07 10:07:40,397 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264423421] [2019-12-07 10:07:40,397 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685209787] [2019-12-07 10:07:40,397 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/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 [2019-12-07 10:07:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:40,502 INFO L264 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 10:07:40,506 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:07:40,523 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 10:07:40,843 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 589 proven. 23 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2019-12-07 10:07:40,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 10:07:40,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2019-12-07 10:07:40,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642887722] [2019-12-07 10:07:40,845 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 10:07:40,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:40,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 10:07:40,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-12-07 10:07:40,845 INFO L87 Difference]: Start difference. First operand 3030 states and 3226 transitions. Second operand 8 states. [2019-12-07 10:07:41,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:41,878 INFO L93 Difference]: Finished difference Result 6284 states and 6683 transitions. [2019-12-07 10:07:41,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 10:07:41,878 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 550 [2019-12-07 10:07:41,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:41,891 INFO L225 Difference]: With dead ends: 6284 [2019-12-07 10:07:41,891 INFO L226 Difference]: Without dead ends: 3434 [2019-12-07 10:07:41,893 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 548 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2019-12-07 10:07:41,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2019-12-07 10:07:41,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3030. [2019-12-07 10:07:41,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-12-07 10:07:41,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3224 transitions. [2019-12-07 10:07:41,934 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3224 transitions. Word has length 550 [2019-12-07 10:07:41,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:41,934 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3224 transitions. [2019-12-07 10:07:41,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 10:07:41,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3224 transitions. [2019-12-07 10:07:41,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 769 [2019-12-07 10:07:41,942 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:41,942 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:42,143 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 10:07:42,144 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:42,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:42,145 INFO L82 PathProgramCache]: Analyzing trace with hash -289671534, now seen corresponding path program 1 times [2019-12-07 10:07:42,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:42,146 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574474528] [2019-12-07 10:07:42,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:43,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 1322 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2019-12-07 10:07:43,263 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574474528] [2019-12-07 10:07:43,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:07:43,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 10:07:43,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605083895] [2019-12-07 10:07:43,265 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 10:07:43,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:43,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 10:07:43,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-12-07 10:07:43,266 INFO L87 Difference]: Start difference. First operand 3030 states and 3224 transitions. Second operand 8 states. [2019-12-07 10:07:44,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:44,082 INFO L93 Difference]: Finished difference Result 5886 states and 6273 transitions. [2019-12-07 10:07:44,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 10:07:44,082 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 768 [2019-12-07 10:07:44,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:44,092 INFO L225 Difference]: With dead ends: 5886 [2019-12-07 10:07:44,092 INFO L226 Difference]: Without dead ends: 3036 [2019-12-07 10:07:44,094 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2019-12-07 10:07:44,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3036 states. [2019-12-07 10:07:44,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3036 to 3030. [2019-12-07 10:07:44,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2019-12-07 10:07:44,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3219 transitions. [2019-12-07 10:07:44,125 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3219 transitions. Word has length 768 [2019-12-07 10:07:44,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:44,126 INFO L462 AbstractCegarLoop]: Abstraction has 3030 states and 3219 transitions. [2019-12-07 10:07:44,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 10:07:44,127 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3219 transitions. [2019-12-07 10:07:44,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2019-12-07 10:07:44,133 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:44,134 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-12-07 10:07:44,134 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:44,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:44,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1021218381, now seen corresponding path program 1 times [2019-12-07 10:07:44,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:44,135 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868637387] [2019-12-07 10:07:44,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:44,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1831 backedges. 1331 proven. 155 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2019-12-07 10:07:44,655 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868637387] [2019-12-07 10:07:44,655 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520309763] [2019-12-07 10:07:44,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 10:07:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:44,781 INFO L264 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:07:44,787 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:07:45,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1831 backedges. 716 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2019-12-07 10:07:45,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 10:07:45,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-12-07 10:07:45,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289461301] [2019-12-07 10:07:45,121 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:07:45,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:45,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:07:45,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:07:45,121 INFO L87 Difference]: Start difference. First operand 3030 states and 3219 transitions. Second operand 3 states. [2019-12-07 10:07:45,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:45,448 INFO L93 Difference]: Finished difference Result 6770 states and 7221 transitions. [2019-12-07 10:07:45,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:07:45,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 794 [2019-12-07 10:07:45,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:45,460 INFO L225 Difference]: With dead ends: 6770 [2019-12-07 10:07:45,460 INFO L226 Difference]: Without dead ends: 3920 [2019-12-07 10:07:45,462 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 799 GetRequests, 795 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:07:45,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2019-12-07 10:07:45,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3386. [2019-12-07 10:07:45,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2019-12-07 10:07:45,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3613 transitions. [2019-12-07 10:07:45,490 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3613 transitions. Word has length 794 [2019-12-07 10:07:45,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:45,491 INFO L462 AbstractCegarLoop]: Abstraction has 3386 states and 3613 transitions. [2019-12-07 10:07:45,491 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:07:45,491 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3613 transitions. [2019-12-07 10:07:45,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 859 [2019-12-07 10:07:45,497 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:45,497 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:07:45,698 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 10:07:45,699 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:45,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:45,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1649677907, now seen corresponding path program 1 times [2019-12-07 10:07:45,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:45,701 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822964386] [2019-12-07 10:07:45,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:46,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 1449 proven. 155 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2019-12-07 10:07:46,311 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822964386] [2019-12-07 10:07:46,311 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292563744] [2019-12-07 10:07:46,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 10:07:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:07:46,439 INFO L264 TraceCheckSpWp]: Trace formula consists of 1035 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:07:46,445 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:07:46,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 1764 trivial. 0 not checked. [2019-12-07 10:07:46,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 10:07:46,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2019-12-07 10:07:46,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520632432] [2019-12-07 10:07:46,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:07:46,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:07:46,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:07:46,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:07:46,820 INFO L87 Difference]: Start difference. First operand 3386 states and 3613 transitions. Second operand 3 states. [2019-12-07 10:07:47,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:07:47,161 INFO L93 Difference]: Finished difference Result 7124 states and 7626 transitions. [2019-12-07 10:07:47,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:07:47,162 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 858 [2019-12-07 10:07:47,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:07:47,163 INFO L225 Difference]: With dead ends: 7124 [2019-12-07 10:07:47,163 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 10:07:47,166 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 863 GetRequests, 859 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:07:47,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 10:07:47,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 10:07:47,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 10:07:47,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 10:07:47,166 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 858 [2019-12-07 10:07:47,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:07:47,167 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:07:47,167 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:07:47,167 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 10:07:47,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 10:07:47,367 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 10:07:47,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 10:07:47,654 INFO L246 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2019-12-07 10:07:47,655 INFO L246 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2019-12-07 10:07:47,655 INFO L246 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,655 INFO L246 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,655 INFO L246 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,655 INFO L246 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2019-12-07 10:07:47,655 INFO L246 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2019-12-07 10:07:47,655 INFO L246 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2019-12-07 10:07:47,655 INFO L246 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2019-12-07 10:07:47,655 INFO L246 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2019-12-07 10:07:47,655 INFO L246 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2019-12-07 10:07:47,655 INFO L246 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2019-12-07 10:07:47,655 INFO L246 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2019-12-07 10:07:47,655 INFO L246 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,655 INFO L246 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,655 INFO L246 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,655 INFO L246 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2019-12-07 10:07:47,655 INFO L246 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2019-12-07 10:07:47,655 INFO L246 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2019-12-07 10:07:47,655 INFO L246 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,656 INFO L246 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2019-12-07 10:07:47,657 INFO L246 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2019-12-07 10:07:47,657 INFO L246 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2019-12-07 10:07:47,657 INFO L246 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2019-12-07 10:07:47,657 INFO L246 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2019-12-07 10:07:47,657 INFO L246 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2019-12-07 10:07:47,657 INFO L246 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2019-12-07 10:07:47,657 INFO L246 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,657 INFO L246 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,657 INFO L246 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,657 INFO L246 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2019-12-07 10:07:47,657 INFO L246 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2019-12-07 10:07:47,657 INFO L246 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2019-12-07 10:07:47,657 INFO L246 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2019-12-07 10:07:47,657 INFO L246 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2019-12-07 10:07:47,657 INFO L246 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2019-12-07 10:07:47,657 INFO L246 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2019-12-07 10:07:47,657 INFO L246 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2019-12-07 10:07:47,657 INFO L246 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2019-12-07 10:07:47,657 INFO L246 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2019-12-07 10:07:47,658 INFO L246 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2019-12-07 10:07:47,659 INFO L246 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2019-12-07 10:07:47,660 INFO L246 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2019-12-07 10:07:47,660 INFO L246 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2019-12-07 10:07:47,660 INFO L246 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,660 INFO L246 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,660 INFO L246 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,660 INFO L246 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2019-12-07 10:07:47,660 INFO L246 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2019-12-07 10:07:47,660 INFO L246 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2019-12-07 10:07:47,660 INFO L246 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2019-12-07 10:07:47,660 INFO L246 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2019-12-07 10:07:47,660 INFO L246 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2019-12-07 10:07:47,660 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 10:07:47,660 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2019-12-07 10:07:47,660 INFO L246 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2019-12-07 10:07:47,660 INFO L246 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2019-12-07 10:07:47,660 INFO L246 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,660 INFO L246 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,660 INFO L246 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,660 INFO L246 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,661 INFO L246 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,662 INFO L246 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2019-12-07 10:07:47,662 INFO L246 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2019-12-07 10:07:47,662 INFO L246 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2019-12-07 10:07:47,662 INFO L246 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2019-12-07 10:07:47,662 INFO L246 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2019-12-07 10:07:47,662 INFO L246 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2019-12-07 10:07:47,662 INFO L246 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2019-12-07 10:07:47,662 INFO L246 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2019-12-07 10:07:47,662 INFO L246 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,662 INFO L246 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,662 INFO L246 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2019-12-07 10:07:47,662 INFO L246 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2019-12-07 10:07:47,662 INFO L246 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2019-12-07 10:07:47,662 INFO L246 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2019-12-07 10:07:47,662 INFO L246 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2019-12-07 10:07:47,662 INFO L246 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2019-12-07 10:07:47,662 INFO L246 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,662 INFO L246 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,663 INFO L242 CegarLoopResult]: At program point L871(lines 20 872) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (<= ~a15~0 6) (and (not (= 5 ULTIMATE.start_calculate_output_~input)) (= ~a15~0 8) .cse0 (< 0 (+ ~a12~0 43))) (and (not (= ~a21~0 9)) .cse0) (and (< 11 ~a12~0) .cse0))) [2019-12-07 10:07:47,663 INFO L246 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2019-12-07 10:07:47,663 INFO L246 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2019-12-07 10:07:47,663 INFO L246 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2019-12-07 10:07:47,663 INFO L246 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2019-12-07 10:07:47,663 INFO L246 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2019-12-07 10:07:47,663 INFO L246 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2019-12-07 10:07:47,663 INFO L246 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2019-12-07 10:07:47,663 INFO L246 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2019-12-07 10:07:47,663 INFO L246 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,663 INFO L246 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,663 INFO L249 CegarLoopResult]: At program point L874(lines 874 890) the Hoare annotation is: true [2019-12-07 10:07:47,663 INFO L246 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2019-12-07 10:07:47,663 INFO L246 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2019-12-07 10:07:47,663 INFO L246 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2019-12-07 10:07:47,663 INFO L246 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2019-12-07 10:07:47,663 INFO L246 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2019-12-07 10:07:47,663 INFO L246 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2019-12-07 10:07:47,663 INFO L246 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2019-12-07 10:07:47,664 INFO L246 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,664 INFO L246 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,664 INFO L246 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2019-12-07 10:07:47,664 INFO L246 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2019-12-07 10:07:47,664 INFO L246 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2019-12-07 10:07:47,664 INFO L246 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2019-12-07 10:07:47,664 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 10:07:47,664 INFO L246 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2019-12-07 10:07:47,664 INFO L246 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2019-12-07 10:07:47,664 INFO L246 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,664 INFO L246 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,664 INFO L246 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2019-12-07 10:07:47,664 INFO L246 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,664 INFO L246 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2019-12-07 10:07:47,664 INFO L242 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (<= ~a15~0 6) (and (not (= 5 ULTIMATE.start_calculate_output_~input)) (= ~a15~0 8) .cse0 (< 0 (+ ~a12~0 43))) (and (not (= ~a21~0 9)) .cse0) (and (< 11 ~a12~0) .cse0))) [2019-12-07 10:07:47,664 INFO L246 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2019-12-07 10:07:47,664 INFO L246 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2019-12-07 10:07:47,664 INFO L246 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2019-12-07 10:07:47,664 INFO L246 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,665 INFO L246 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2019-12-07 10:07:47,666 INFO L246 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2019-12-07 10:07:47,666 INFO L246 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2019-12-07 10:07:47,666 INFO L246 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2019-12-07 10:07:47,666 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 10:07:47,666 INFO L246 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2019-12-07 10:07:47,666 INFO L246 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2019-12-07 10:07:47,666 INFO L246 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2019-12-07 10:07:47,666 INFO L246 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2019-12-07 10:07:47,666 INFO L246 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,666 INFO L246 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,666 INFO L246 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,666 INFO L246 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2019-12-07 10:07:47,666 INFO L246 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2019-12-07 10:07:47,666 INFO L246 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2019-12-07 10:07:47,666 INFO L246 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2019-12-07 10:07:47,666 INFO L246 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2019-12-07 10:07:47,666 INFO L246 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2019-12-07 10:07:47,667 INFO L246 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2019-12-07 10:07:47,667 INFO L246 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2019-12-07 10:07:47,667 INFO L246 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2019-12-07 10:07:47,667 INFO L246 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,667 INFO L246 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,667 INFO L246 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 10:07:47,667 INFO L246 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2019-12-07 10:07:47,667 INFO L246 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2019-12-07 10:07:47,667 INFO L246 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2019-12-07 10:07:47,667 INFO L246 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2019-12-07 10:07:47,667 INFO L246 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2019-12-07 10:07:47,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:07:47 BoogieIcfgContainer [2019-12-07 10:07:47,683 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:07:47,684 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:07:47,684 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:07:47,684 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:07:47,684 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:31" (3/4) ... [2019-12-07 10:07:47,687 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 10:07:47,709 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 10:07:47,711 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 10:07:47,814 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_aa8aac52-71cb-4837-92aa-f2bb474dd8ee/bin/uautomizer/witness.graphml [2019-12-07 10:07:47,814 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:07:47,816 INFO L168 Benchmark]: Toolchain (without parser) took 17759.27 ms. Allocated memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: 1.2 GB). Free memory was 937.0 MB in the beginning and 1.6 GB in the end (delta: -709.4 MB). Peak memory consumption was 484.4 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:47,816 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:07:47,817 INFO L168 Benchmark]: CACSL2BoogieTranslator took 402.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.6 MB). Free memory was 937.0 MB in the beginning and 1.0 GB in the end (delta: -109.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:47,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:47,818 INFO L168 Benchmark]: Boogie Preprocessor took 64.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:47,818 INFO L168 Benchmark]: RCFGBuilder took 836.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 895.0 MB in the end (delta: 130.1 MB). Peak memory consumption was 130.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:47,818 INFO L168 Benchmark]: TraceAbstraction took 16259.11 ms. Allocated memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: 1.1 GB). Free memory was 895.0 MB in the beginning and 1.7 GB in the end (delta: -788.3 MB). Peak memory consumption was 327.9 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:47,819 INFO L168 Benchmark]: Witness Printer took 130.77 ms. Allocated memory is still 2.2 GB. Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 36.8 MB). Peak memory consumption was 36.8 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:47,820 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 402.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.6 MB). Free memory was 937.0 MB in the beginning and 1.0 GB in the end (delta: -109.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 836.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 895.0 MB in the end (delta: 130.1 MB). Peak memory consumption was 130.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16259.11 ms. Allocated memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: 1.1 GB). Free memory was 895.0 MB in the beginning and 1.7 GB in the end (delta: -788.3 MB). Peak memory consumption was 327.9 MB. Max. memory is 11.5 GB. * Witness Printer took 130.77 ms. Allocated memory is still 2.2 GB. Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 36.8 MB). Peak memory consumption was 36.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 103]: 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: 880]: Loop Invariant Derived loop invariant: ((a15 <= 6 || (((!(5 == input) && a15 == 8) && a24 == 1) && 0 < a12 + 43)) || (!(a21 == 9) && a24 == 1)) || (11 < a12 && a24 == 1) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((a15 <= 6 || (((!(5 == input) && a15 == 8) && a24 == 1) && 0 < a12 + 43)) || (!(a21 == 9) && a24 == 1)) || (11 < a12 && a24 == 1) - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Result: SAFE, OverallTime: 15.9s, OverallIterations: 11, TraceHistogramMax: 7, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 1088 SDtfs, 3085 SDslu, 124 SDs, 0 SdLazy, 8860 SolverSat, 1342 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3525 GetRequests, 3467 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3386occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 2368 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 56 NumberOfFragments, 71 HoareAnnotationTreeSize, 3 FomulaSimplifications, 7018 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 840 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 8060 NumberOfCodeBlocks, 8060 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 8042 ConstructedInterpolants, 0 QuantifiedInterpolants, 14399456 SizeOfPredicates, 15 NumberOfNonLiveVariables, 4382 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 18 InterpolantComputations, 10 PerfectInterpolantSequences, 13601/14015 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...