./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label08.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_0fea4648-e843-465c-8a07-585a8ef7ed9b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0fea4648-e843-465c-8a07-585a8ef7ed9b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0fea4648-e843-465c-8a07-585a8ef7ed9b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0fea4648-e843-465c-8a07-585a8ef7ed9b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label08.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0fea4648-e843-465c-8a07-585a8ef7ed9b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0fea4648-e843-465c-8a07-585a8ef7ed9b/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 16d1e07abe3d8baa61b9a8d494202a7664f873bb ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:00:14,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:00:14,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:00:14,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:00:14,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:00:14,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:00:14,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:00:14,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:00:14,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:00:14,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:00:14,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:00:14,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:00:14,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:00:14,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:00:14,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:00:14,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:00:14,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:00:14,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:00:14,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:00:14,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:00:14,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:00:14,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:00:14,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:00:14,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:00:14,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:00:14,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:00:14,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:00:14,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:00:14,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:00:14,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:00:14,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:00:14,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:00:14,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:00:14,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:00:14,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:00:14,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:00:14,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:00:14,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:00:14,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:00:14,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:00:14,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:00:14,083 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0fea4648-e843-465c-8a07-585a8ef7ed9b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 14:00:14,093 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:00:14,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:00:14,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:00:14,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:00:14,094 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:00:14,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:00:14,094 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:00:14,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:00:14,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:00:14,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:00:14,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:00:14,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:00:14,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:00:14,095 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:00:14,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:00:14,095 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:00:14,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:00:14,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:00:14,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:00:14,096 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:00:14,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:00:14,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:00:14,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:00:14,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:00:14,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:00:14,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:00:14,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:00:14,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:00:14,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:00:14,097 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_0fea4648-e843-465c-8a07-585a8ef7ed9b/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 -> 16d1e07abe3d8baa61b9a8d494202a7664f873bb [2019-12-07 14:00:14,197 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:00:14,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:00:14,208 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:00:14,209 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:00:14,209 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:00:14,210 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0fea4648-e843-465c-8a07-585a8ef7ed9b/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label08.c [2019-12-07 14:00:14,249 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0fea4648-e843-465c-8a07-585a8ef7ed9b/bin/uautomizer/data/d5a6516e0/7a6c924bfece4563a3c634a0bd4fc559/FLAGe2499e2b7 [2019-12-07 14:00:14,633 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:00:14,633 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0fea4648-e843-465c-8a07-585a8ef7ed9b/sv-benchmarks/c/eca-rers2012/Problem01_label08.c [2019-12-07 14:00:14,643 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0fea4648-e843-465c-8a07-585a8ef7ed9b/bin/uautomizer/data/d5a6516e0/7a6c924bfece4563a3c634a0bd4fc559/FLAGe2499e2b7 [2019-12-07 14:00:14,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0fea4648-e843-465c-8a07-585a8ef7ed9b/bin/uautomizer/data/d5a6516e0/7a6c924bfece4563a3c634a0bd4fc559 [2019-12-07 14:00:14,657 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:00:14,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:00:14,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:00:14,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:00:14,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:00:14,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:00:14" (1/1) ... [2019-12-07 14:00:14,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52b02f39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:00:14, skipping insertion in model container [2019-12-07 14:00:14,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:00:14" (1/1) ... [2019-12-07 14:00:14,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:00:14,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:00:14,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:00:14,958 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:00:15,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:00:15,038 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:00:15,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:00:15 WrapperNode [2019-12-07 14:00:15,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:00:15,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:00:15,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:00:15,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:00:15,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:00:15" (1/1) ... [2019-12-07 14:00:15,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:00:15" (1/1) ... [2019-12-07 14:00:15,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:00:15,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:00:15,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:00:15,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:00:15,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:00:15" (1/1) ... [2019-12-07 14:00:15,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:00:15" (1/1) ... [2019-12-07 14:00:15,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:00:15" (1/1) ... [2019-12-07 14:00:15,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:00:15" (1/1) ... [2019-12-07 14:00:15,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:00:15" (1/1) ... [2019-12-07 14:00:15,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:00:15" (1/1) ... [2019-12-07 14:00:15,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:00:15" (1/1) ... [2019-12-07 14:00:15,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:00:15,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:00:15,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:00:15,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:00:15,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:00:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0fea4648-e843-465c-8a07-585a8ef7ed9b/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 14:00:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:00:15,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:00:15,807 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:00:15,807 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 14:00:15,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:00:15 BoogieIcfgContainer [2019-12-07 14:00:15,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:00:15,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:00:15,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:00:15,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:00:15,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:00:14" (1/3) ... [2019-12-07 14:00:15,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efacc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:00:15, skipping insertion in model container [2019-12-07 14:00:15,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:00:15" (2/3) ... [2019-12-07 14:00:15,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efacc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:00:15, skipping insertion in model container [2019-12-07 14:00:15,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:00:15" (3/3) ... [2019-12-07 14:00:15,813 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label08.c [2019-12-07 14:00:15,819 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:00:15,824 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 14:00:15,831 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 14:00:15,849 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:00:15,849 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:00:15,849 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:00:15,849 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:00:15,849 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:00:15,849 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:00:15,849 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:00:15,849 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:00:15,864 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-12-07 14:00:15,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-12-07 14:00:15,873 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:00:15,873 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:00:15,874 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:00:15,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:00:15,878 INFO L82 PathProgramCache]: Analyzing trace with hash -439667690, now seen corresponding path program 1 times [2019-12-07 14:00:15,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:00:15,884 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687590773] [2019-12-07 14:00:15,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:00:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:00:16,134 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 14:00:16,135 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687590773] [2019-12-07 14:00:16,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:00:16,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:00:16,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025796439] [2019-12-07 14:00:16,142 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:00:16,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:00:16,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:00:16,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:00:16,156 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2019-12-07 14:00:16,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:00:16,666 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2019-12-07 14:00:16,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:00:16,667 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2019-12-07 14:00:16,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:00:16,677 INFO L225 Difference]: With dead ends: 528 [2019-12-07 14:00:16,677 INFO L226 Difference]: Without dead ends: 266 [2019-12-07 14:00:16,680 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:00:16,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2019-12-07 14:00:16,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2019-12-07 14:00:16,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2019-12-07 14:00:16,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 374 transitions. [2019-12-07 14:00:16,717 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 374 transitions. Word has length 113 [2019-12-07 14:00:16,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:00:16,718 INFO L462 AbstractCegarLoop]: Abstraction has 266 states and 374 transitions. [2019-12-07 14:00:16,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:00:16,718 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 374 transitions. [2019-12-07 14:00:16,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-12-07 14:00:16,720 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:00:16,720 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:00:16,720 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:00:16,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:00:16,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1141355742, now seen corresponding path program 1 times [2019-12-07 14:00:16,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:00:16,721 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884989916] [2019-12-07 14:00:16,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:00:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:00:16,847 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 14:00:16,848 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884989916] [2019-12-07 14:00:16,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:00:16,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:00:16,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344099220] [2019-12-07 14:00:16,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:00:16,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:00:16,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:00:16,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:00:16,851 INFO L87 Difference]: Start difference. First operand 266 states and 374 transitions. Second operand 4 states. [2019-12-07 14:00:17,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:00:17,322 INFO L93 Difference]: Finished difference Result 1054 states and 1488 transitions. [2019-12-07 14:00:17,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:00:17,323 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2019-12-07 14:00:17,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:00:17,328 INFO L225 Difference]: With dead ends: 1054 [2019-12-07 14:00:17,328 INFO L226 Difference]: Without dead ends: 790 [2019-12-07 14:00:17,329 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 14:00:17,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-12-07 14:00:17,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 528. [2019-12-07 14:00:17,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2019-12-07 14:00:17,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 708 transitions. [2019-12-07 14:00:17,352 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 708 transitions. Word has length 117 [2019-12-07 14:00:17,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:00:17,352 INFO L462 AbstractCegarLoop]: Abstraction has 528 states and 708 transitions. [2019-12-07 14:00:17,352 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:00:17,352 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 708 transitions. [2019-12-07 14:00:17,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-12-07 14:00:17,354 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:00:17,355 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:00:17,355 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:00:17,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:00:17,355 INFO L82 PathProgramCache]: Analyzing trace with hash -935067032, now seen corresponding path program 1 times [2019-12-07 14:00:17,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:00:17,355 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512512498] [2019-12-07 14:00:17,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:00:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:00:17,408 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-12-07 14:00:17,408 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512512498] [2019-12-07 14:00:17,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:00:17,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:00:17,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142489313] [2019-12-07 14:00:17,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:00:17,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:00:17,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:00:17,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:00:17,409 INFO L87 Difference]: Start difference. First operand 528 states and 708 transitions. Second operand 3 states. [2019-12-07 14:00:17,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:00:17,704 INFO L93 Difference]: Finished difference Result 1316 states and 1785 transitions. [2019-12-07 14:00:17,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:00:17,704 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2019-12-07 14:00:17,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:00:17,708 INFO L225 Difference]: With dead ends: 1316 [2019-12-07 14:00:17,708 INFO L226 Difference]: Without dead ends: 790 [2019-12-07 14:00:17,709 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:00:17,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-12-07 14:00:17,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 659. [2019-12-07 14:00:17,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2019-12-07 14:00:17,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 888 transitions. [2019-12-07 14:00:17,722 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 888 transitions. Word has length 147 [2019-12-07 14:00:17,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:00:17,723 INFO L462 AbstractCegarLoop]: Abstraction has 659 states and 888 transitions. [2019-12-07 14:00:17,723 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:00:17,723 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 888 transitions. [2019-12-07 14:00:17,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-12-07 14:00:17,724 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:00:17,725 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:00:17,725 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:00:17,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:00:17,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1615405790, now seen corresponding path program 1 times [2019-12-07 14:00:17,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:00:17,725 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241376159] [2019-12-07 14:00:17,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:00:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:00:17,816 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-12-07 14:00:17,816 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241376159] [2019-12-07 14:00:17,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:00:17,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:00:17,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965435901] [2019-12-07 14:00:17,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:00:17,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:00:17,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:00:17,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:00:17,818 INFO L87 Difference]: Start difference. First operand 659 states and 888 transitions. Second operand 4 states. [2019-12-07 14:00:18,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:00:18,212 INFO L93 Difference]: Finished difference Result 1449 states and 1931 transitions. [2019-12-07 14:00:18,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:00:18,213 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 151 [2019-12-07 14:00:18,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:00:18,216 INFO L225 Difference]: With dead ends: 1449 [2019-12-07 14:00:18,216 INFO L226 Difference]: Without dead ends: 792 [2019-12-07 14:00:18,217 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:00:18,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2019-12-07 14:00:18,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 790. [2019-12-07 14:00:18,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-12-07 14:00:18,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1025 transitions. [2019-12-07 14:00:18,229 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1025 transitions. Word has length 151 [2019-12-07 14:00:18,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:00:18,230 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 1025 transitions. [2019-12-07 14:00:18,230 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:00:18,230 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1025 transitions. [2019-12-07 14:00:18,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-12-07 14:00:18,231 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:00:18,232 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:00:18,232 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:00:18,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:00:18,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1243165274, now seen corresponding path program 1 times [2019-12-07 14:00:18,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:00:18,232 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954172120] [2019-12-07 14:00:18,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:00:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:00:18,269 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-12-07 14:00:18,269 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954172120] [2019-12-07 14:00:18,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:00:18,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:00:18,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013784625] [2019-12-07 14:00:18,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:00:18,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:00:18,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:00:18,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:00:18,271 INFO L87 Difference]: Start difference. First operand 790 states and 1025 transitions. Second operand 3 states. [2019-12-07 14:00:18,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:00:18,626 INFO L93 Difference]: Finished difference Result 1709 states and 2245 transitions. [2019-12-07 14:00:18,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:00:18,627 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-12-07 14:00:18,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:00:18,631 INFO L225 Difference]: With dead ends: 1709 [2019-12-07 14:00:18,631 INFO L226 Difference]: Without dead ends: 1052 [2019-12-07 14:00:18,632 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:00:18,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2019-12-07 14:00:18,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052. [2019-12-07 14:00:18,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2019-12-07 14:00:18,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1323 transitions. [2019-12-07 14:00:18,651 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1323 transitions. Word has length 155 [2019-12-07 14:00:18,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:00:18,651 INFO L462 AbstractCegarLoop]: Abstraction has 1052 states and 1323 transitions. [2019-12-07 14:00:18,651 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:00:18,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1323 transitions. [2019-12-07 14:00:18,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-12-07 14:00:18,653 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:00:18,654 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:00:18,654 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:00:18,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:00:18,654 INFO L82 PathProgramCache]: Analyzing trace with hash 626276872, now seen corresponding path program 1 times [2019-12-07 14:00:18,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:00:18,654 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093511733] [2019-12-07 14:00:18,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:00:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:00:18,696 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-12-07 14:00:18,697 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093511733] [2019-12-07 14:00:18,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:00:18,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 14:00:18,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296728160] [2019-12-07 14:00:18,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:00:18,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:00:18,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:00:18,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:00:18,698 INFO L87 Difference]: Start difference. First operand 1052 states and 1323 transitions. Second operand 4 states. [2019-12-07 14:00:19,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:00:19,251 INFO L93 Difference]: Finished difference Result 3150 states and 3974 transitions. [2019-12-07 14:00:19,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:00:19,252 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 164 [2019-12-07 14:00:19,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:00:19,264 INFO L225 Difference]: With dead ends: 3150 [2019-12-07 14:00:19,264 INFO L226 Difference]: Without dead ends: 2231 [2019-12-07 14:00:19,266 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 14:00:19,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2019-12-07 14:00:19,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1576. [2019-12-07 14:00:19,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2019-12-07 14:00:19,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1943 transitions. [2019-12-07 14:00:19,306 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1943 transitions. Word has length 164 [2019-12-07 14:00:19,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:00:19,306 INFO L462 AbstractCegarLoop]: Abstraction has 1576 states and 1943 transitions. [2019-12-07 14:00:19,306 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:00:19,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1943 transitions. [2019-12-07 14:00:19,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-12-07 14:00:19,311 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:00:19,311 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:00:19,311 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:00:19,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:00:19,312 INFO L82 PathProgramCache]: Analyzing trace with hash 375824388, now seen corresponding path program 1 times [2019-12-07 14:00:19,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:00:19,312 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228839612] [2019-12-07 14:00:19,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:00:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:00:19,384 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-12-07 14:00:19,384 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228839612] [2019-12-07 14:00:19,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:00:19,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 14:00:19,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604497335] [2019-12-07 14:00:19,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:00:19,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:00:19,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:00:19,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:00:19,386 INFO L87 Difference]: Start difference. First operand 1576 states and 1943 transitions. Second operand 5 states. [2019-12-07 14:00:20,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:00:20,042 INFO L93 Difference]: Finished difference Result 3543 states and 4355 transitions. [2019-12-07 14:00:20,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 14:00:20,042 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 188 [2019-12-07 14:00:20,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:00:20,052 INFO L225 Difference]: With dead ends: 3543 [2019-12-07 14:00:20,052 INFO L226 Difference]: Without dead ends: 2100 [2019-12-07 14:00:20,055 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:00:20,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2019-12-07 14:00:20,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1838. [2019-12-07 14:00:20,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2019-12-07 14:00:20,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2216 transitions. [2019-12-07 14:00:20,094 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2216 transitions. Word has length 188 [2019-12-07 14:00:20,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:00:20,094 INFO L462 AbstractCegarLoop]: Abstraction has 1838 states and 2216 transitions. [2019-12-07 14:00:20,094 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:00:20,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2216 transitions. [2019-12-07 14:00:20,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-12-07 14:00:20,099 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:00:20,100 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:00:20,100 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:00:20,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:00:20,100 INFO L82 PathProgramCache]: Analyzing trace with hash -2072693678, now seen corresponding path program 1 times [2019-12-07 14:00:20,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:00:20,101 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301917774] [2019-12-07 14:00:20,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:00:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:00:20,173 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-12-07 14:00:20,173 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301917774] [2019-12-07 14:00:20,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:00:20,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 14:00:20,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498930075] [2019-12-07 14:00:20,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:00:20,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:00:20,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:00:20,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:00:20,175 INFO L87 Difference]: Start difference. First operand 1838 states and 2216 transitions. Second operand 4 states. [2019-12-07 14:00:20,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:00:20,656 INFO L93 Difference]: Finished difference Result 4591 states and 5491 transitions. [2019-12-07 14:00:20,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:00:20,656 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 203 [2019-12-07 14:00:20,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:00:20,663 INFO L225 Difference]: With dead ends: 4591 [2019-12-07 14:00:20,663 INFO L226 Difference]: Without dead ends: 2231 [2019-12-07 14:00:20,665 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 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 14:00:20,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2019-12-07 14:00:20,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1707. [2019-12-07 14:00:20,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2019-12-07 14:00:20,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1847 transitions. [2019-12-07 14:00:20,687 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1847 transitions. Word has length 203 [2019-12-07 14:00:20,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:00:20,687 INFO L462 AbstractCegarLoop]: Abstraction has 1707 states and 1847 transitions. [2019-12-07 14:00:20,688 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:00:20,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1847 transitions. [2019-12-07 14:00:20,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-12-07 14:00:20,691 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:00:20,691 INFO L410 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:00:20,691 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:00:20,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:00:20,691 INFO L82 PathProgramCache]: Analyzing trace with hash -230297452, now seen corresponding path program 1 times [2019-12-07 14:00:20,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:00:20,692 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303661464] [2019-12-07 14:00:20,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:00:20,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:00:20,844 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2019-12-07 14:00:20,845 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303661464] [2019-12-07 14:00:20,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:00:20,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:00:20,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661010459] [2019-12-07 14:00:20,845 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:00:20,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:00:20,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:00:20,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:00:20,846 INFO L87 Difference]: Start difference. First operand 1707 states and 1847 transitions. Second operand 3 states. [2019-12-07 14:00:21,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:00:21,071 INFO L93 Difference]: Finished difference Result 2100 states and 2283 transitions. [2019-12-07 14:00:21,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:00:21,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2019-12-07 14:00:21,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:00:21,073 INFO L225 Difference]: With dead ends: 2100 [2019-12-07 14:00:21,073 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 14:00:21,074 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:00:21,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 14:00:21,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 14:00:21,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 14:00:21,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 14:00:21,075 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 217 [2019-12-07 14:00:21,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:00:21,075 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:00:21,075 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:00:21,075 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 14:00:21,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 14:00:21,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 14:00:21,302 INFO L246 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-12-07 14:00:21,302 INFO L246 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-12-07 14:00:21,302 INFO L246 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,302 INFO L246 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,302 INFO L246 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,302 INFO L246 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,302 INFO L246 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,302 INFO L246 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,302 INFO L246 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-12-07 14:00:21,303 INFO L246 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-12-07 14:00:21,303 INFO L246 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2019-12-07 14:00:21,303 INFO L246 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2019-12-07 14:00:21,303 INFO L246 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2019-12-07 14:00:21,303 INFO L246 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2019-12-07 14:00:21,303 INFO L246 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2019-12-07 14:00:21,303 INFO L246 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2019-12-07 14:00:21,303 INFO L246 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-12-07 14:00:21,303 INFO L246 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-12-07 14:00:21,303 INFO L246 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,303 INFO L246 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,303 INFO L246 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,304 INFO L246 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,304 INFO L246 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,304 INFO L246 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,304 INFO L246 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-12-07 14:00:21,304 INFO L246 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-12-07 14:00:21,304 INFO L246 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2019-12-07 14:00:21,304 INFO L246 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2019-12-07 14:00:21,304 INFO L246 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2019-12-07 14:00:21,304 INFO L246 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2019-12-07 14:00:21,304 INFO L246 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2019-12-07 14:00:21,305 INFO L246 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2019-12-07 14:00:21,305 INFO L246 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-12-07 14:00:21,305 INFO L246 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-12-07 14:00:21,305 INFO L246 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-12-07 14:00:21,305 INFO L246 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-12-07 14:00:21,305 INFO L246 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-12-07 14:00:21,305 INFO L246 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-12-07 14:00:21,305 INFO L246 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2019-12-07 14:00:21,305 INFO L246 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,305 INFO L246 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,306 INFO L246 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,306 INFO L246 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,306 INFO L246 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,306 INFO L246 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-12-07 14:00:21,306 INFO L246 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-12-07 14:00:21,306 INFO L246 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2019-12-07 14:00:21,306 INFO L246 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2019-12-07 14:00:21,306 INFO L246 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2019-12-07 14:00:21,306 INFO L246 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2019-12-07 14:00:21,306 INFO L246 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2019-12-07 14:00:21,307 INFO L246 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2019-12-07 14:00:21,307 INFO L246 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-12-07 14:00:21,307 INFO L242 CegarLoopResult]: At program point L574(lines 30 575) the Hoare annotation is: (let ((.cse0 (= 13 ~a8~0))) (let ((.cse4 (not .cse0)) (.cse5 (not (= ~a16~0 6))) (.cse2 (not (= 1 ~a7~0))) (.cse3 (= ~a21~0 1)) (.cse1 (= ~a20~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4) (and .cse5 .cse3 .cse4) (and .cse0 .cse5 (= ~a17~0 1)) (and .cse5 .cse2 .cse3) (and (not (= 15 ~a8~0)) .cse3 .cse1)))) [2019-12-07 14:00:21,307 INFO L246 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,307 INFO L246 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,307 INFO L246 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,307 INFO L246 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,308 INFO L246 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,308 INFO L246 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-12-07 14:00:21,308 INFO L246 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2019-12-07 14:00:21,308 INFO L246 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2019-12-07 14:00:21,308 INFO L246 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2019-12-07 14:00:21,308 INFO L246 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2019-12-07 14:00:21,308 INFO L246 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2019-12-07 14:00:21,308 INFO L246 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-12-07 14:00:21,308 INFO L246 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-12-07 14:00:21,308 INFO L246 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-12-07 14:00:21,308 INFO L246 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-12-07 14:00:21,308 INFO L246 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-12-07 14:00:21,308 INFO L246 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-12-07 14:00:21,308 INFO L246 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-12-07 14:00:21,308 INFO L249 CegarLoopResult]: At program point L577(lines 577 594) the Hoare annotation is: true [2019-12-07 14:00:21,308 INFO L246 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,309 INFO L246 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,309 INFO L246 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,309 INFO L246 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,309 INFO L246 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,309 INFO L246 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-12-07 14:00:21,309 INFO L246 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-12-07 14:00:21,309 INFO L246 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-12-07 14:00:21,309 INFO L246 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2019-12-07 14:00:21,309 INFO L246 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2019-12-07 14:00:21,309 INFO L246 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2019-12-07 14:00:21,309 INFO L246 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2019-12-07 14:00:21,309 INFO L246 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2019-12-07 14:00:21,309 INFO L246 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-12-07 14:00:21,309 INFO L246 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,309 INFO L246 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,309 INFO L246 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,309 INFO L246 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,310 INFO L246 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-12-07 14:00:21,310 INFO L246 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,310 INFO L246 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-12-07 14:00:21,310 INFO L246 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-12-07 14:00:21,310 INFO L246 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2019-12-07 14:00:21,310 INFO L246 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2019-12-07 14:00:21,310 INFO L246 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2019-12-07 14:00:21,310 INFO L246 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2019-12-07 14:00:21,310 INFO L246 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2019-12-07 14:00:21,310 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 14:00:21,311 INFO L246 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-12-07 14:00:21,311 INFO L246 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-12-07 14:00:21,311 INFO L246 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-12-07 14:00:21,311 INFO L246 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-12-07 14:00:21,311 INFO L246 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-12-07 14:00:21,311 INFO L246 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-12-07 14:00:21,311 INFO L246 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,311 INFO L242 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= 13 ~a8~0))) (let ((.cse4 (not .cse0)) (.cse5 (not (= ~a16~0 6))) (.cse2 (not (= 1 ~a7~0))) (.cse3 (= ~a21~0 1)) (.cse1 (= ~a20~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4) (and .cse5 .cse3 .cse4) (and .cse0 .cse5 (= ~a17~0 1)) (and .cse5 .cse2 .cse3) (and (not (= 15 ~a8~0)) .cse3 .cse1)))) [2019-12-07 14:00:21,311 INFO L246 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,312 INFO L246 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,312 INFO L246 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,312 INFO L246 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,312 INFO L246 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-12-07 14:00:21,312 INFO L246 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2019-12-07 14:00:21,312 INFO L246 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2019-12-07 14:00:21,312 INFO L246 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2019-12-07 14:00:21,312 INFO L246 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2019-12-07 14:00:21,312 INFO L246 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2019-12-07 14:00:21,312 INFO L246 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-12-07 14:00:21,312 INFO L246 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-12-07 14:00:21,313 INFO L246 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,313 INFO L246 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,313 INFO L246 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,313 INFO L246 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,313 INFO L246 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,313 INFO L246 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-12-07 14:00:21,313 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 14:00:21,313 INFO L246 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-12-07 14:00:21,313 INFO L246 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-12-07 14:00:21,313 INFO L246 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-12-07 14:00:21,313 INFO L246 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2019-12-07 14:00:21,313 INFO L246 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2019-12-07 14:00:21,313 INFO L246 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2019-12-07 14:00:21,313 INFO L246 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2019-12-07 14:00:21,313 INFO L246 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2019-12-07 14:00:21,313 INFO L246 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-12-07 14:00:21,313 INFO L246 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2019-12-07 14:00:21,313 INFO L246 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-12-07 14:00:21,313 INFO L246 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,314 INFO L246 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,314 INFO L246 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,314 INFO L246 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,314 INFO L246 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2019-12-07 14:00:21,314 INFO L246 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,314 INFO L246 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,314 INFO L246 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-12-07 14:00:21,314 INFO L246 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-12-07 14:00:21,314 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 14:00:21,314 INFO L246 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2019-12-07 14:00:21,314 INFO L246 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2019-12-07 14:00:21,314 INFO L246 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2019-12-07 14:00:21,314 INFO L246 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2019-12-07 14:00:21,314 INFO L246 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2019-12-07 14:00:21,314 INFO L246 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2019-12-07 14:00:21,314 INFO L246 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-12-07 14:00:21,314 INFO L246 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-12-07 14:00:21,315 INFO L246 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-12-07 14:00:21,315 INFO L246 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-12-07 14:00:21,315 INFO L246 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,315 INFO L246 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,315 INFO L246 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,315 INFO L246 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,315 INFO L246 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,315 INFO L246 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-12-07 14:00:21,315 INFO L246 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,315 INFO L246 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-12-07 14:00:21,315 INFO L246 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-12-07 14:00:21,315 INFO L246 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2019-12-07 14:00:21,316 INFO L246 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2019-12-07 14:00:21,316 INFO L246 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2019-12-07 14:00:21,316 INFO L246 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2019-12-07 14:00:21,316 INFO L246 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2019-12-07 14:00:21,316 INFO L246 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2019-12-07 14:00:21,316 INFO L246 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-12-07 14:00:21,316 INFO L246 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-12-07 14:00:21,316 INFO L246 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-12-07 14:00:21,316 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 14:00:21,316 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 515) no Hoare annotation was computed. [2019-12-07 14:00:21,316 INFO L246 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-12-07 14:00:21,316 INFO L246 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-12-07 14:00:21,316 INFO L246 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-12-07 14:00:21,317 INFO L246 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,317 INFO L246 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,317 INFO L246 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,317 INFO L246 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,317 INFO L246 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,317 INFO L246 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2019-12-07 14:00:21,317 INFO L246 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-12-07 14:00:21,317 INFO L246 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2019-12-07 14:00:21,317 INFO L246 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2019-12-07 14:00:21,317 INFO L246 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2019-12-07 14:00:21,317 INFO L246 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2019-12-07 14:00:21,317 INFO L246 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2019-12-07 14:00:21,317 INFO L246 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2019-12-07 14:00:21,317 INFO L246 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-12-07 14:00:21,317 INFO L246 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-12-07 14:00:21,317 INFO L246 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-12-07 14:00:21,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:00:21 BoogieIcfgContainer [2019-12-07 14:00:21,335 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:00:21,335 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:00:21,335 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:00:21,335 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:00:21,336 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:00:15" (3/4) ... [2019-12-07 14:00:21,338 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 14:00:21,355 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 14:00:21,356 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 14:00:21,453 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0fea4648-e843-465c-8a07-585a8ef7ed9b/bin/uautomizer/witness.graphml [2019-12-07 14:00:21,453 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:00:21,455 INFO L168 Benchmark]: Toolchain (without parser) took 6795.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 220.7 MB). Free memory was 938.2 MB in the beginning and 1.0 GB in the end (delta: -76.2 MB). Peak memory consumption was 144.5 MB. Max. memory is 11.5 GB. [2019-12-07 14:00:21,455 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 957.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:00:21,455 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -142.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:00:21,455 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:00:21,456 INFO L168 Benchmark]: Boogie Preprocessor took 49.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:00:21,456 INFO L168 Benchmark]: RCFGBuilder took 663.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 962.2 MB in the end (delta: 107.9 MB). Peak memory consumption was 107.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:00:21,456 INFO L168 Benchmark]: TraceAbstraction took 5526.00 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 115.3 MB). Free memory was 961.2 MB in the beginning and 1.0 GB in the end (delta: -70.8 MB). Peak memory consumption was 44.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:00:21,456 INFO L168 Benchmark]: Witness Printer took 118.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-12-07 14:00:21,458 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 957.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 379.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -142.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 663.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 962.2 MB in the end (delta: 107.9 MB). Peak memory consumption was 107.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5526.00 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 115.3 MB). Free memory was 961.2 MB in the beginning and 1.0 GB in the end (delta: -70.8 MB). Peak memory consumption was 44.6 MB. Max. memory is 11.5 GB. * Witness Printer took 118.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 515]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((13 == a8 && a20 == 1) || ((!(1 == a7) && a21 == 1) && !(13 == a8))) || ((!(a16 == 6) && a21 == 1) && !(13 == a8))) || ((13 == a8 && !(a16 == 6)) && a17 == 1)) || ((!(a16 == 6) && !(1 == a7)) && a21 == 1)) || ((!(15 == a8) && a21 == 1) && a20 == 1) - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((13 == a8 && a20 == 1) || ((!(1 == a7) && a21 == 1) && !(13 == a8))) || ((!(a16 == 6) && a21 == 1) && !(13 == a8))) || ((13 == a8 && !(a16 == 6)) && a17 == 1)) || ((!(a16 == 6) && !(1 == a7)) && a21 == 1)) || ((!(15 == a8) && a21 == 1) && a20 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Result: SAFE, OverallTime: 5.2s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 520 SDtfs, 1863 SDslu, 85 SDs, 0 SdLazy, 4383 SolverSat, 719 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1838occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 1836 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 45 NumberOfFragments, 133 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3010 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 358 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 1455 NumberOfCodeBlocks, 1455 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1446 ConstructedInterpolants, 0 QuantifiedInterpolants, 543858 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 640/640 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...