./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label07.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f428802ac72f1d2a0fe821ea4740cdcba55def6a ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:01:09,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:01:09,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:01:09,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:01:09,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:01:09,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:01:09,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:01:09,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:01:09,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:01:09,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:01:09,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:01:09,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:01:09,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:01:09,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:01:09,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:01:09,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:01:09,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:01:09,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:01:09,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:01:09,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:01:09,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:01:09,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:01:09,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:01:09,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:01:09,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:01:09,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:01:09,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:01:09,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:01:09,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:01:09,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:01:09,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:01:09,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:01:09,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:01:09,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:01:09,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:01:09,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:01:09,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:01:09,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:01:09,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:01:09,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:01:09,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:01:09,623 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:01:09,664 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:01:09,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:01:09,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:01:09,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:01:09,667 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:01:09,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:01:09,668 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:01:09,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:01:09,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:01:09,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:01:09,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:01:09,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:01:09,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:01:09,671 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:01:09,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:01:09,671 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:01:09,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:01:09,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:01:09,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:01:09,672 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:01:09,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:01:09,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:01:09,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:01:09,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:01:09,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:01:09,674 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:01:09,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:01:09,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:01:09,675 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:01:09,675 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f428802ac72f1d2a0fe821ea4740cdcba55def6a [2020-11-28 03:01:09,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:01:10,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:01:10,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:01:10,021 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:01:10,022 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:01:10,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem10_label07.c [2020-11-28 03:01:10,121 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/bin/uautomizer/data/dfe05bbb5/7bbffb6c48c042fd913e2a08c4780af5/FLAG559181658 [2020-11-28 03:01:10,746 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:01:10,746 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/sv-benchmarks/c/eca-rers2012/Problem10_label07.c [2020-11-28 03:01:10,761 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/bin/uautomizer/data/dfe05bbb5/7bbffb6c48c042fd913e2a08c4780af5/FLAG559181658 [2020-11-28 03:01:10,993 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/bin/uautomizer/data/dfe05bbb5/7bbffb6c48c042fd913e2a08c4780af5 [2020-11-28 03:01:10,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:01:10,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:01:11,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:11,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:01:11,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:01:11,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:10" (1/1) ... [2020-11-28 03:01:11,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62e4a4cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:11, skipping insertion in model container [2020-11-28 03:01:11,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:10" (1/1) ... [2020-11-28 03:01:11,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:01:11,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:01:11,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:11,594 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:01:11,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:11,813 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:01:11,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:11 WrapperNode [2020-11-28 03:01:11,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:11,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:01:11,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:01:11,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:01:11,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:11" (1/1) ... [2020-11-28 03:01:11,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:11" (1/1) ... [2020-11-28 03:01:11,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:01:11,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:01:11,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:01:11,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:01:11,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:11" (1/1) ... [2020-11-28 03:01:11,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:11" (1/1) ... [2020-11-28 03:01:11,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:11" (1/1) ... [2020-11-28 03:01:11,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:11" (1/1) ... [2020-11-28 03:01:12,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:11" (1/1) ... [2020-11-28 03:01:12,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:11" (1/1) ... [2020-11-28 03:01:12,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:11" (1/1) ... [2020-11-28 03:01:12,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:01:12,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:01:12,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:01:12,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:01:12,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:01:12,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:01:12,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:01:12,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:01:12,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:01:14,200 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:01:14,200 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:01:14,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:14 BoogieIcfgContainer [2020-11-28 03:01:14,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:01:14,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:01:14,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:01:14,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:01:14,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:01:10" (1/3) ... [2020-11-28 03:01:14,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303cd6bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:01:14, skipping insertion in model container [2020-11-28 03:01:14,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:11" (2/3) ... [2020-11-28 03:01:14,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303cd6bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:01:14, skipping insertion in model container [2020-11-28 03:01:14,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:14" (3/3) ... [2020-11-28 03:01:14,216 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label07.c [2020-11-28 03:01:14,243 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:01:14,249 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:01:14,263 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:01:14,314 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:01:14,314 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:01:14,314 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:01:14,315 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:01:14,315 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:01:14,315 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:01:14,315 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:01:14,316 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:01:14,344 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-11-28 03:01:14,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-28 03:01:14,357 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:14,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:14,359 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:14,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:14,368 INFO L82 PathProgramCache]: Analyzing trace with hash -2068820151, now seen corresponding path program 1 times [2020-11-28 03:01:14,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:14,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072228717] [2020-11-28 03:01:14,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:14,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:01:14,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072228717] [2020-11-28 03:01:14,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:14,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:01:14,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836250024] [2020-11-28 03:01:14,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:01:14,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:14,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:01:14,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:01:14,822 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-11-28 03:01:16,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:16,626 INFO L93 Difference]: Finished difference Result 568 states and 982 transitions. [2020-11-28 03:01:16,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:01:16,628 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-11-28 03:01:16,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:16,657 INFO L225 Difference]: With dead ends: 568 [2020-11-28 03:01:16,660 INFO L226 Difference]: Without dead ends: 282 [2020-11-28 03:01:16,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:01:16,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-11-28 03:01:16,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-11-28 03:01:16,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-11-28 03:01:16,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2020-11-28 03:01:16,744 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 45 [2020-11-28 03:01:16,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:16,744 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2020-11-28 03:01:16,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:01:16,744 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2020-11-28 03:01:16,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-11-28 03:01:16,749 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:16,750 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-28 03:01:16,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:01:16,750 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:16,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:16,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1775270330, now seen corresponding path program 1 times [2020-11-28 03:01:16,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:16,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973590170] [2020-11-28 03:01:16,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:17,027 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:01:17,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973590170] [2020-11-28 03:01:17,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850900210] [2020-11-28 03:01:17,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:01:17,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:17,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:01:17,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:01:17,296 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-11-28 03:01:17,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:01:17,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-11-28 03:01:17,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015462538] [2020-11-28 03:01:17,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:01:17,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:17,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:01:17,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:01:17,312 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand 3 states. [2020-11-28 03:01:18,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:18,213 INFO L93 Difference]: Finished difference Result 562 states and 862 transitions. [2020-11-28 03:01:18,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:01:18,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-11-28 03:01:18,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:18,219 INFO L225 Difference]: With dead ends: 562 [2020-11-28 03:01:18,219 INFO L226 Difference]: Without dead ends: 560 [2020-11-28 03:01:18,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:01:18,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-11-28 03:01:18,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 282. [2020-11-28 03:01:18,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-11-28 03:01:18,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2020-11-28 03:01:18,263 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 111 [2020-11-28 03:01:18,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:18,265 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2020-11-28 03:01:18,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:01:18,265 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2020-11-28 03:01:18,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-11-28 03:01:18,275 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:18,276 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-28 03:01:18,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-28 03:01:18,490 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:18,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:18,490 INFO L82 PathProgramCache]: Analyzing trace with hash 623839905, now seen corresponding path program 1 times [2020-11-28 03:01:18,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:18,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836744524] [2020-11-28 03:01:18,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:18,648 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:01:18,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836744524] [2020-11-28 03:01:18,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:18,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:01:18,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483553195] [2020-11-28 03:01:18,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:01:18,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:18,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:01:18,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:01:18,651 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand 3 states. [2020-11-28 03:01:19,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:19,450 INFO L93 Difference]: Finished difference Result 701 states and 1076 transitions. [2020-11-28 03:01:19,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:01:19,451 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2020-11-28 03:01:19,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:19,455 INFO L225 Difference]: With dead ends: 701 [2020-11-28 03:01:19,455 INFO L226 Difference]: Without dead ends: 421 [2020-11-28 03:01:19,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:01:19,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-11-28 03:01:19,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2020-11-28 03:01:19,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-11-28 03:01:19,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 596 transitions. [2020-11-28 03:01:19,482 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 596 transitions. Word has length 114 [2020-11-28 03:01:19,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:19,484 INFO L481 AbstractCegarLoop]: Abstraction has 421 states and 596 transitions. [2020-11-28 03:01:19,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:01:19,489 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 596 transitions. [2020-11-28 03:01:19,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-11-28 03:01:19,493 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:19,493 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-28 03:01:19,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:01:19,494 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:19,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:19,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1358004824, now seen corresponding path program 1 times [2020-11-28 03:01:19,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:19,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279340124] [2020-11-28 03:01:19,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:19,764 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:01:19,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279340124] [2020-11-28 03:01:19,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:19,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:01:19,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582164402] [2020-11-28 03:01:19,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:01:19,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:19,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:01:19,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:01:19,772 INFO L87 Difference]: Start difference. First operand 421 states and 596 transitions. Second operand 4 states. [2020-11-28 03:01:20,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:20,691 INFO L93 Difference]: Finished difference Result 990 states and 1390 transitions. [2020-11-28 03:01:20,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:01:20,692 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 123 [2020-11-28 03:01:20,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:20,695 INFO L225 Difference]: With dead ends: 990 [2020-11-28 03:01:20,696 INFO L226 Difference]: Without dead ends: 571 [2020-11-28 03:01:20,697 INFO L677 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 [2020-11-28 03:01:20,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2020-11-28 03:01:20,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 560. [2020-11-28 03:01:20,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-11-28 03:01:20,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 740 transitions. [2020-11-28 03:01:20,715 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 740 transitions. Word has length 123 [2020-11-28 03:01:20,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:20,715 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 740 transitions. [2020-11-28 03:01:20,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:01:20,716 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 740 transitions. [2020-11-28 03:01:20,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-11-28 03:01:20,719 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:20,719 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:20,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:01:20,720 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:20,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:20,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1673786615, now seen corresponding path program 1 times [2020-11-28 03:01:20,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:20,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588828092] [2020-11-28 03:01:20,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:20,871 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:01:20,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588828092] [2020-11-28 03:01:20,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:20,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:01:20,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198670351] [2020-11-28 03:01:20,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:01:20,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:20,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:01:20,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:01:20,874 INFO L87 Difference]: Start difference. First operand 560 states and 740 transitions. Second operand 3 states. [2020-11-28 03:01:21,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:21,587 INFO L93 Difference]: Finished difference Result 1257 states and 1713 transitions. [2020-11-28 03:01:21,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:01:21,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-11-28 03:01:21,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:21,593 INFO L225 Difference]: With dead ends: 1257 [2020-11-28 03:01:21,593 INFO L226 Difference]: Without dead ends: 838 [2020-11-28 03:01:21,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:01:21,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-11-28 03:01:21,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2020-11-28 03:01:21,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-11-28 03:01:21,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1039 transitions. [2020-11-28 03:01:21,619 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1039 transitions. Word has length 189 [2020-11-28 03:01:21,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:21,620 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1039 transitions. [2020-11-28 03:01:21,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:01:21,620 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1039 transitions. [2020-11-28 03:01:21,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-11-28 03:01:21,624 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:21,624 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:21,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:01:21,624 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:21,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:21,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1619231775, now seen corresponding path program 1 times [2020-11-28 03:01:21,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:21,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786169501] [2020-11-28 03:01:21,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:22,020 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:01:22,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786169501] [2020-11-28 03:01:22,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:22,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:01:22,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695392316] [2020-11-28 03:01:22,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:01:22,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:22,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:01:22,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:01:22,024 INFO L87 Difference]: Start difference. First operand 838 states and 1039 transitions. Second operand 7 states. [2020-11-28 03:01:22,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:22,810 INFO L93 Difference]: Finished difference Result 1590 states and 1987 transitions. [2020-11-28 03:01:22,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:01:22,810 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-11-28 03:01:22,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:22,816 INFO L225 Difference]: With dead ends: 1590 [2020-11-28 03:01:22,816 INFO L226 Difference]: Without dead ends: 838 [2020-11-28 03:01:22,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:01:22,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-11-28 03:01:22,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2020-11-28 03:01:22,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-11-28 03:01:22,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1035 transitions. [2020-11-28 03:01:22,843 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1035 transitions. Word has length 198 [2020-11-28 03:01:22,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:22,844 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1035 transitions. [2020-11-28 03:01:22,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:01:22,844 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1035 transitions. [2020-11-28 03:01:22,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-11-28 03:01:22,848 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:22,848 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:22,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:01:22,852 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:22,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:22,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1553961657, now seen corresponding path program 1 times [2020-11-28 03:01:22,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:22,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976184602] [2020-11-28 03:01:22,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:23,036 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:01:23,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976184602] [2020-11-28 03:01:23,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:23,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:01:23,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205061399] [2020-11-28 03:01:23,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:01:23,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:23,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:01:23,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:01:23,041 INFO L87 Difference]: Start difference. First operand 838 states and 1035 transitions. Second operand 3 states. [2020-11-28 03:01:23,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:23,843 INFO L93 Difference]: Finished difference Result 1952 states and 2515 transitions. [2020-11-28 03:01:23,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:01:23,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-11-28 03:01:23,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:23,851 INFO L225 Difference]: With dead ends: 1952 [2020-11-28 03:01:23,851 INFO L226 Difference]: Without dead ends: 1255 [2020-11-28 03:01:23,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:01:23,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-11-28 03:01:23,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1116. [2020-11-28 03:01:23,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-11-28 03:01:23,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1363 transitions. [2020-11-28 03:01:23,882 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1363 transitions. Word has length 234 [2020-11-28 03:01:23,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:23,883 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1363 transitions. [2020-11-28 03:01:23,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:01:23,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1363 transitions. [2020-11-28 03:01:23,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-11-28 03:01:23,888 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:23,889 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-28 03:01:23,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:01:23,889 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:23,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:23,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1934752960, now seen corresponding path program 1 times [2020-11-28 03:01:23,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:23,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670683526] [2020-11-28 03:01:23,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:23,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:24,332 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 33 proven. 52 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-11-28 03:01:24,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670683526] [2020-11-28 03:01:24,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522937380] [2020-11-28 03:01:24,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:01:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:24,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:01:24,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:01:24,593 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-11-28 03:01:24,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:01:24,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-28 03:01:24,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527965040] [2020-11-28 03:01:24,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:01:24,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:24,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:01:24,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:01:24,597 INFO L87 Difference]: Start difference. First operand 1116 states and 1363 transitions. Second operand 3 states. [2020-11-28 03:01:25,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:25,343 INFO L93 Difference]: Finished difference Result 1674 states and 2006 transitions. [2020-11-28 03:01:25,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:01:25,344 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 288 [2020-11-28 03:01:25,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:25,355 INFO L225 Difference]: With dead ends: 1674 [2020-11-28 03:01:25,355 INFO L226 Difference]: Without dead ends: 1672 [2020-11-28 03:01:25,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:01:25,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2020-11-28 03:01:25,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1116. [2020-11-28 03:01:25,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-11-28 03:01:25,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1363 transitions. [2020-11-28 03:01:25,394 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1363 transitions. Word has length 288 [2020-11-28 03:01:25,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:25,395 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1363 transitions. [2020-11-28 03:01:25,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:01:25,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1363 transitions. [2020-11-28 03:01:25,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-11-28 03:01:25,400 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:25,401 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-28 03:01:25,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:01:25,629 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:25,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:25,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1259614339, now seen corresponding path program 1 times [2020-11-28 03:01:25,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:25,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462966790] [2020-11-28 03:01:25,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:25,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:26,217 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 85 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:01:26,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462966790] [2020-11-28 03:01:26,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16014111] [2020-11-28 03:01:26,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:01:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:26,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:01:26,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:01:26,470 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-11-28 03:01:26,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:01:26,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-28 03:01:26,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678192337] [2020-11-28 03:01:26,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:01:26,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:26,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:01:26,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:01:26,473 INFO L87 Difference]: Start difference. First operand 1116 states and 1363 transitions. Second operand 3 states. [2020-11-28 03:01:27,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:27,233 INFO L93 Difference]: Finished difference Result 2369 states and 2958 transitions. [2020-11-28 03:01:27,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:01:27,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 290 [2020-11-28 03:01:27,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:27,246 INFO L225 Difference]: With dead ends: 2369 [2020-11-28 03:01:27,246 INFO L226 Difference]: Without dead ends: 1394 [2020-11-28 03:01:27,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 289 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:01:27,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-11-28 03:01:27,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2020-11-28 03:01:27,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-11-28 03:01:27,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1527 transitions. [2020-11-28 03:01:27,286 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1527 transitions. Word has length 290 [2020-11-28 03:01:27,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:27,286 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1527 transitions. [2020-11-28 03:01:27,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:01:27,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1527 transitions. [2020-11-28 03:01:27,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-11-28 03:01:27,293 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:27,294 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:01:27,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:01:27,513 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:27,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:27,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1842225074, now seen corresponding path program 1 times [2020-11-28 03:01:27,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:27,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409813341] [2020-11-28 03:01:27,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:27,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:27,772 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 306 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-11-28 03:01:27,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409813341] [2020-11-28 03:01:27,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:27,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:01:27,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800885772] [2020-11-28 03:01:27,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:01:27,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:27,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:01:27,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:01:27,775 INFO L87 Difference]: Start difference. First operand 1255 states and 1527 transitions. Second operand 3 states. [2020-11-28 03:01:28,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:28,466 INFO L93 Difference]: Finished difference Result 3064 states and 3738 transitions. [2020-11-28 03:01:28,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:01:28,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 340 [2020-11-28 03:01:28,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:28,476 INFO L225 Difference]: With dead ends: 3064 [2020-11-28 03:01:28,476 INFO L226 Difference]: Without dead ends: 1950 [2020-11-28 03:01:28,478 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:01:28,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2020-11-28 03:01:28,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1950. [2020-11-28 03:01:28,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1950 states. [2020-11-28 03:01:28,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 2297 transitions. [2020-11-28 03:01:28,529 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 2297 transitions. Word has length 340 [2020-11-28 03:01:28,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:28,530 INFO L481 AbstractCegarLoop]: Abstraction has 1950 states and 2297 transitions. [2020-11-28 03:01:28,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:01:28,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 2297 transitions. [2020-11-28 03:01:28,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2020-11-28 03:01:28,539 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:28,539 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-28 03:01:28,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:01:28,539 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:28,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:28,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1758769876, now seen corresponding path program 1 times [2020-11-28 03:01:28,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:28,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839508752] [2020-11-28 03:01:28,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:28,789 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-11-28 03:01:28,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839508752] [2020-11-28 03:01:28,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:28,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:01:28,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768545118] [2020-11-28 03:01:28,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:01:28,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:28,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:01:28,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:01:28,792 INFO L87 Difference]: Start difference. First operand 1950 states and 2297 transitions. Second operand 3 states. [2020-11-28 03:01:29,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:29,497 INFO L93 Difference]: Finished difference Result 2091 states and 2462 transitions. [2020-11-28 03:01:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:01:29,498 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 353 [2020-11-28 03:01:29,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:29,508 INFO L225 Difference]: With dead ends: 2091 [2020-11-28 03:01:29,508 INFO L226 Difference]: Without dead ends: 2089 [2020-11-28 03:01:29,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:01:29,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2020-11-28 03:01:29,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1811. [2020-11-28 03:01:29,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1811 states. [2020-11-28 03:01:29,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2147 transitions. [2020-11-28 03:01:29,552 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2147 transitions. Word has length 353 [2020-11-28 03:01:29,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:29,553 INFO L481 AbstractCegarLoop]: Abstraction has 1811 states and 2147 transitions. [2020-11-28 03:01:29,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:01:29,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2147 transitions. [2020-11-28 03:01:29,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2020-11-28 03:01:29,562 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:29,563 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-28 03:01:29,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:01:29,563 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:29,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:29,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1095651397, now seen corresponding path program 1 times [2020-11-28 03:01:29,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:29,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134946042] [2020-11-28 03:01:29,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:30,026 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 17 proven. 111 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-11-28 03:01:30,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134946042] [2020-11-28 03:01:30,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832210733] [2020-11-28 03:01:30,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:01:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:30,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:01:30,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:01:30,294 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-11-28 03:01:30,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:01:30,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-11-28 03:01:30,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328904858] [2020-11-28 03:01:30,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:01:30,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:01:30,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:01:30,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:01:30,296 INFO L87 Difference]: Start difference. First operand 1811 states and 2147 transitions. Second operand 3 states. [2020-11-28 03:01:31,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:31,125 INFO L93 Difference]: Finished difference Result 3479 states and 4148 transitions. [2020-11-28 03:01:31,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:01:31,125 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 359 [2020-11-28 03:01:31,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:31,126 INFO L225 Difference]: With dead ends: 3479 [2020-11-28 03:01:31,127 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:01:31,131 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:01:31,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:01:31,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:01:31,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:01:31,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:01:31,132 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 359 [2020-11-28 03:01:31,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:31,132 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:01:31,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:01:31,132 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:01:31,132 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:01:31,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:01:31,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:01:31,613 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 22 [2020-11-28 03:01:31,757 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 22 [2020-11-28 03:01:31,761 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-11-28 03:01:31,761 INFO L274 CegarLoopResult]: For program point L564(lines 564 582) no Hoare annotation was computed. [2020-11-28 03:01:31,761 INFO L274 CegarLoopResult]: For program point L333(lines 333 582) no Hoare annotation was computed. [2020-11-28 03:01:31,761 INFO L274 CegarLoopResult]: For program point L367(lines 367 582) no Hoare annotation was computed. [2020-11-28 03:01:31,761 INFO L274 CegarLoopResult]: For program point L301(lines 301 582) no Hoare annotation was computed. [2020-11-28 03:01:31,761 INFO L274 CegarLoopResult]: For program point L235(lines 235 582) no Hoare annotation was computed. [2020-11-28 03:01:31,761 INFO L274 CegarLoopResult]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,761 INFO L274 CegarLoopResult]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,761 INFO L274 CegarLoopResult]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,761 INFO L274 CegarLoopResult]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,761 INFO L274 CegarLoopResult]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,761 INFO L274 CegarLoopResult]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,762 INFO L274 CegarLoopResult]: For program point L533(lines 533 582) no Hoare annotation was computed. [2020-11-28 03:01:31,762 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-11-28 03:01:31,762 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-11-28 03:01:31,762 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-11-28 03:01:31,762 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-11-28 03:01:31,762 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-11-28 03:01:31,762 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-11-28 03:01:31,762 INFO L274 CegarLoopResult]: For program point L567(lines 567 582) no Hoare annotation was computed. [2020-11-28 03:01:31,762 INFO L274 CegarLoopResult]: For program point L435(lines 435 582) no Hoare annotation was computed. [2020-11-28 03:01:31,762 INFO L274 CegarLoopResult]: For program point L336(lines 336 582) no Hoare annotation was computed. [2020-11-28 03:01:31,762 INFO L274 CegarLoopResult]: For program point L270(lines 270 582) no Hoare annotation was computed. [2020-11-28 03:01:31,762 INFO L274 CegarLoopResult]: For program point L403(lines 403 582) no Hoare annotation was computed. [2020-11-28 03:01:31,762 INFO L274 CegarLoopResult]: For program point L370(lines 370 582) no Hoare annotation was computed. [2020-11-28 03:01:31,762 INFO L274 CegarLoopResult]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,762 INFO L274 CegarLoopResult]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,763 INFO L274 CegarLoopResult]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,763 INFO L274 CegarLoopResult]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,763 INFO L274 CegarLoopResult]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,763 INFO L274 CegarLoopResult]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,763 INFO L274 CegarLoopResult]: For program point L536(lines 536 582) no Hoare annotation was computed. [2020-11-28 03:01:31,763 INFO L274 CegarLoopResult]: For program point L503(lines 503 582) no Hoare annotation was computed. [2020-11-28 03:01:31,763 INFO L274 CegarLoopResult]: For program point L470(lines 470 582) no Hoare annotation was computed. [2020-11-28 03:01:31,763 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-11-28 03:01:31,763 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-11-28 03:01:31,763 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-11-28 03:01:31,763 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-11-28 03:01:31,763 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-11-28 03:01:31,763 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-11-28 03:01:31,763 INFO L274 CegarLoopResult]: For program point L339(lines 339 582) no Hoare annotation was computed. [2020-11-28 03:01:31,763 INFO L274 CegarLoopResult]: For program point L306(lines 306 582) no Hoare annotation was computed. [2020-11-28 03:01:31,763 INFO L274 CegarLoopResult]: For program point L241(lines 241 582) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L539(lines 539 582) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L440(lines 440 582) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L275(lines 275 582) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L573(lines 573 582) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L408(lines 408 582) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L375(lines 375 582) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 03:01:31,764 INFO L274 CegarLoopResult]: For program point L475(lines 475 582) no Hoare annotation was computed. [2020-11-28 03:01:31,765 INFO L274 CegarLoopResult]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,765 INFO L274 CegarLoopResult]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,765 INFO L274 CegarLoopResult]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,765 INFO L274 CegarLoopResult]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,765 INFO L274 CegarLoopResult]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,765 INFO L274 CegarLoopResult]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,765 INFO L274 CegarLoopResult]: For program point L509(lines 509 582) no Hoare annotation was computed. [2020-11-28 03:01:31,765 INFO L274 CegarLoopResult]: For program point L311(lines 311 582) no Hoare annotation was computed. [2020-11-28 03:01:31,765 INFO L274 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-11-28 03:01:31,765 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-11-28 03:01:31,765 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-11-28 03:01:31,765 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-11-28 03:01:31,765 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-11-28 03:01:31,765 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-11-28 03:01:31,765 INFO L274 CegarLoopResult]: For program point L345(lines 345 582) no Hoare annotation was computed. [2020-11-28 03:01:31,765 INFO L274 CegarLoopResult]: For program point L246(lines 246 582) no Hoare annotation was computed. [2020-11-28 03:01:31,765 INFO L274 CegarLoopResult]: For program point L544(lines 544 582) no Hoare annotation was computed. [2020-11-28 03:01:31,765 INFO L274 CegarLoopResult]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,765 INFO L274 CegarLoopResult]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L446(lines 446 582) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L413(lines 413 582) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L380(lines 380 582) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L281(lines 281 582) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L579(lines 579 582) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L249(lines 249 582) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L514(lines 514 582) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L481(lines 481 582) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L316(lines 316 582) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,766 INFO L274 CegarLoopResult]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,767 INFO L274 CegarLoopResult]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,767 INFO L274 CegarLoopResult]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,767 INFO L274 CegarLoopResult]: For program point L350(lines 350 582) no Hoare annotation was computed. [2020-11-28 03:01:31,767 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:01:31,767 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-11-28 03:01:31,767 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-11-28 03:01:31,767 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-11-28 03:01:31,767 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-11-28 03:01:31,767 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-11-28 03:01:31,767 INFO L270 CegarLoopResult]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 9)) (.cse0 (= 14 ~a4~0)) (.cse2 (<= 7 ~a19~0)) (.cse1 (= ~a12~0 0))) (or (and (<= ~a10~0 0) .cse0 .cse1) (and .cse0 .cse2 .cse1 .cse3) (and (<= 3 ~a10~0) .cse0 .cse1 .cse3) (and (= ~a10~0 1) .cse0 .cse2 .cse1))) [2020-11-28 03:01:31,767 INFO L274 CegarLoopResult]: For program point L550(lines 550 582) no Hoare annotation was computed. [2020-11-28 03:01:31,767 INFO L274 CegarLoopResult]: For program point L418(lines 418 582) no Hoare annotation was computed. [2020-11-28 03:01:31,767 INFO L274 CegarLoopResult]: For program point L385(lines 385 582) no Hoare annotation was computed. [2020-11-28 03:01:31,767 INFO L274 CegarLoopResult]: For program point L220(lines 220 582) no Hoare annotation was computed. [2020-11-28 03:01:31,767 INFO L274 CegarLoopResult]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,768 INFO L274 CegarLoopResult]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,768 INFO L274 CegarLoopResult]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,768 INFO L274 CegarLoopResult]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,768 INFO L274 CegarLoopResult]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,768 INFO L274 CegarLoopResult]: For program point L452(lines 452 582) no Hoare annotation was computed. [2020-11-28 03:01:31,768 INFO L274 CegarLoopResult]: For program point L287(lines 287 582) no Hoare annotation was computed. [2020-11-28 03:01:31,768 INFO L274 CegarLoopResult]: For program point L254(lines 254 582) no Hoare annotation was computed. [2020-11-28 03:01:31,768 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-11-28 03:01:31,768 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-11-28 03:01:31,768 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-11-28 03:01:31,768 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-11-28 03:01:31,768 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-11-28 03:01:31,768 INFO L274 CegarLoopResult]: For program point L519(lines 519 582) no Hoare annotation was computed. [2020-11-28 03:01:31,768 INFO L274 CegarLoopResult]: For program point L486(lines 486 582) no Hoare annotation was computed. [2020-11-28 03:01:31,768 INFO L277 CegarLoopResult]: At program point L586(lines 586 602) the Hoare annotation is: true [2020-11-28 03:01:31,768 INFO L274 CegarLoopResult]: For program point L388(lines 388 582) no Hoare annotation was computed. [2020-11-28 03:01:31,768 INFO L274 CegarLoopResult]: For program point L355(lines 355 582) no Hoare annotation was computed. [2020-11-28 03:01:31,768 INFO L274 CegarLoopResult]: For program point L322(lines 322 582) no Hoare annotation was computed. [2020-11-28 03:01:31,768 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:01:31,768 INFO L274 CegarLoopResult]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,769 INFO L274 CegarLoopResult]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,769 INFO L274 CegarLoopResult]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,769 INFO L274 CegarLoopResult]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,769 INFO L274 CegarLoopResult]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,769 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-11-28 03:01:31,769 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-11-28 03:01:31,773 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-11-28 03:01:31,773 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-11-28 03:01:31,774 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-11-28 03:01:31,774 INFO L274 CegarLoopResult]: For program point L555(lines 555 582) no Hoare annotation was computed. [2020-11-28 03:01:31,774 INFO L274 CegarLoopResult]: For program point L225(lines 225 582) no Hoare annotation was computed. [2020-11-28 03:01:31,774 INFO L274 CegarLoopResult]: For program point L424(lines 424 582) no Hoare annotation was computed. [2020-11-28 03:01:31,774 INFO L274 CegarLoopResult]: For program point L259(lines 259 582) no Hoare annotation was computed. [2020-11-28 03:01:31,774 INFO L274 CegarLoopResult]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,774 INFO L274 CegarLoopResult]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,789 INFO L274 CegarLoopResult]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,789 INFO L274 CegarLoopResult]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,789 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:01:31,790 INFO L274 CegarLoopResult]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,790 INFO L274 CegarLoopResult]: For program point L524(lines 524 582) no Hoare annotation was computed. [2020-11-28 03:01:31,790 INFO L274 CegarLoopResult]: For program point L491(lines 491 582) no Hoare annotation was computed. [2020-11-28 03:01:31,790 INFO L274 CegarLoopResult]: For program point L458(lines 458 582) no Hoare annotation was computed. [2020-11-28 03:01:31,790 INFO L274 CegarLoopResult]: For program point L293(lines 293 582) no Hoare annotation was computed. [2020-11-28 03:01:31,790 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-11-28 03:01:31,790 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-11-28 03:01:31,791 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-11-28 03:01:31,791 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-11-28 03:01:31,791 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-11-28 03:01:31,791 INFO L274 CegarLoopResult]: For program point L558(lines 558 582) no Hoare annotation was computed. [2020-11-28 03:01:31,791 INFO L274 CegarLoopResult]: For program point L393(lines 393 582) no Hoare annotation was computed. [2020-11-28 03:01:31,791 INFO L274 CegarLoopResult]: For program point L327(lines 327 582) no Hoare annotation was computed. [2020-11-28 03:01:31,792 INFO L270 CegarLoopResult]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 9)) (.cse0 (= 14 ~a4~0)) (.cse2 (<= 7 ~a19~0)) (.cse1 (= ~a12~0 0))) (or (and (<= ~a10~0 0) .cse0 .cse1) (and .cse0 .cse2 .cse1 .cse3) (and (<= 3 ~a10~0) .cse0 .cse1 .cse3) (and (= ~a10~0 1) .cse0 .cse2 .cse1))) [2020-11-28 03:01:31,792 INFO L274 CegarLoopResult]: For program point L361(lines 361 582) no Hoare annotation was computed. [2020-11-28 03:01:31,792 INFO L274 CegarLoopResult]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,792 INFO L274 CegarLoopResult]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,792 INFO L274 CegarLoopResult]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,792 INFO L274 CegarLoopResult]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,792 INFO L274 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-11-28 03:01:31,793 INFO L274 CegarLoopResult]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,793 INFO L274 CegarLoopResult]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,793 INFO L274 CegarLoopResult]: For program point L527(lines 527 582) no Hoare annotation was computed. [2020-11-28 03:01:31,793 INFO L274 CegarLoopResult]: For program point L296(lines 296 582) no Hoare annotation was computed. [2020-11-28 03:01:31,793 INFO L274 CegarLoopResult]: For program point L230(lines 230 582) no Hoare annotation was computed. [2020-11-28 03:01:31,793 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-11-28 03:01:31,793 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-11-28 03:01:31,793 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-11-28 03:01:31,794 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-11-28 03:01:31,794 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-11-28 03:01:31,794 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-11-28 03:01:31,794 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:01:31,794 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-28 03:01:31,794 INFO L274 CegarLoopResult]: For program point L429(lines 429 582) no Hoare annotation was computed. [2020-11-28 03:01:31,794 INFO L274 CegarLoopResult]: For program point L330(lines 330 582) no Hoare annotation was computed. [2020-11-28 03:01:31,795 INFO L274 CegarLoopResult]: For program point L264(lines 264 582) no Hoare annotation was computed. [2020-11-28 03:01:31,795 INFO L274 CegarLoopResult]: For program point L364(lines 364 582) no Hoare annotation was computed. [2020-11-28 03:01:31,795 INFO L274 CegarLoopResult]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,795 INFO L274 CegarLoopResult]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,795 INFO L274 CegarLoopResult]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,795 INFO L274 CegarLoopResult]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,795 INFO L274 CegarLoopResult]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,796 INFO L274 CegarLoopResult]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2020-11-28 03:01:31,796 INFO L274 CegarLoopResult]: For program point L497(lines 497 582) no Hoare annotation was computed. [2020-11-28 03:01:31,796 INFO L274 CegarLoopResult]: For program point L464(lines 464 582) no Hoare annotation was computed. [2020-11-28 03:01:31,796 INFO L274 CegarLoopResult]: For program point L398(lines 398 582) no Hoare annotation was computed. [2020-11-28 03:01:31,796 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-11-28 03:01:31,796 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-11-28 03:01:31,796 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-11-28 03:01:31,797 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-11-28 03:01:31,797 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-11-28 03:01:31,797 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-11-28 03:01:31,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:01:31 BoogieIcfgContainer [2020-11-28 03:01:31,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:01:31,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:01:31,837 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:01:31,837 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:01:31,838 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:14" (3/4) ... [2020-11-28 03:01:31,840 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:01:31,869 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 03:01:31,870 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:01:31,872 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:01:31,873 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:01:32,042 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d2f92610-745f-4179-873b-af6b3715f91c/bin/uautomizer/witness.graphml [2020-11-28 03:01:32,042 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:01:32,043 INFO L168 Benchmark]: Toolchain (without parser) took 21043.74 ms. Allocated memory was 100.7 MB in the beginning and 461.4 MB in the end (delta: 360.7 MB). Free memory was 72.7 MB in the beginning and 421.9 MB in the end (delta: -349.2 MB). Peak memory consumption was 279.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:32,043 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 100.7 MB. Free memory is still 58.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:01:32,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 810.62 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 72.5 MB in the beginning and 92.6 MB in the end (delta: -20.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:32,044 INFO L168 Benchmark]: Boogie Procedure Inliner took 156.68 ms. Allocated memory is still 132.1 MB. Free memory was 92.6 MB in the beginning and 84.7 MB in the end (delta: 7.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:32,044 INFO L168 Benchmark]: Boogie Preprocessor took 99.39 ms. Allocated memory is still 132.1 MB. Free memory was 84.7 MB in the beginning and 79.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:32,045 INFO L168 Benchmark]: RCFGBuilder took 2131.97 ms. Allocated memory is still 132.1 MB. Free memory was 79.1 MB in the beginning and 55.7 MB in the end (delta: 23.4 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:32,045 INFO L168 Benchmark]: TraceAbstraction took 17629.07 ms. Allocated memory was 132.1 MB in the beginning and 461.4 MB in the end (delta: 329.3 MB). Free memory was 55.7 MB in the beginning and 166.6 MB in the end (delta: -110.8 MB). Peak memory consumption was 219.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:32,046 INFO L168 Benchmark]: Witness Printer took 205.32 ms. Allocated memory is still 461.4 MB. Free memory was 165.5 MB in the beginning and 421.9 MB in the end (delta: -256.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:32,048 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 100.7 MB. Free memory is still 58.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 810.62 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 72.5 MB in the beginning and 92.6 MB in the end (delta: -20.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 156.68 ms. Allocated memory is still 132.1 MB. Free memory was 92.6 MB in the beginning and 84.7 MB in the end (delta: 7.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 99.39 ms. Allocated memory is still 132.1 MB. Free memory was 84.7 MB in the beginning and 79.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2131.97 ms. Allocated memory is still 132.1 MB. Free memory was 79.1 MB in the beginning and 55.7 MB in the end (delta: 23.4 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17629.07 ms. Allocated memory was 132.1 MB in the beginning and 461.4 MB in the end (delta: 329.3 MB). Free memory was 55.7 MB in the beginning and 166.6 MB in the end (delta: -110.8 MB). Peak memory consumption was 219.0 MB. Max. memory is 16.1 GB. * Witness Printer took 205.32 ms. Allocated memory is still 461.4 MB. Free memory was 165.5 MB in the beginning and 421.9 MB in the end (delta: -256.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((((a10 <= 0 && 14 == a4) && a12 == 0) || (((14 == a4 && 7 <= a19) && a12 == 0) && a19 <= 9)) || (((3 <= a10 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((a10 == 1 && 14 == a4) && 7 <= a19) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((a10 <= 0 && 14 == a4) && a12 == 0) || (((14 == a4 && 7 <= a19) && a12 == 0) && a19 <= 9)) || (((3 <= a10 && 14 == a4) && a12 == 0) && a19 <= 9)) || (((a10 == 1 && 14 == a4) && 7 <= a19) && a12 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.0s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 10.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1044 SDtfs, 1378 SDslu, 62 SDs, 0 SdLazy, 4662 SolverSat, 835 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1086 GetRequests, 1056 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1950occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 1401 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 33 NumberOfFragments, 101 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2058 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 620 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 3692 NumberOfCodeBlocks, 3692 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3676 ConstructedInterpolants, 0 QuantifiedInterpolants, 4016256 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1523 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 2678/2997 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...