./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label28.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label28.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/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 1b815902b6076f117270384fcf6c6d0e52ac3ebb .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:54:12,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:54:12,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:54:12,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:54:12,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:54:12,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:54:12,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:54:12,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:54:12,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:54:12,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:54:12,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:54:12,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:54:12,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:54:12,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:54:12,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:54:12,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:54:12,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:54:12,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:54:12,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:54:12,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:54:12,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:54:12,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:54:12,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:54:12,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:54:12,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:54:12,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:54:12,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:54:12,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:54:12,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:54:12,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:54:12,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:54:12,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:54:12,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:54:12,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:54:12,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:54:12,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:54:12,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:54:12,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:54:12,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:54:12,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:54:12,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:54:12,246 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:54:12,288 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:54:12,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:54:12,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:54:12,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:54:12,297 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:54:12,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:54:12,298 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:54:12,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:54:12,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:54:12,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:54:12,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:54:12,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:54:12,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:54:12,301 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:54:12,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:54:12,302 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:54:12,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:54:12,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:54:12,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:54:12,303 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:54:12,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:54:12,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:54:12,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:54:12,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:54:12,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:54:12,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:54:12,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:54:12,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:54:12,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:54:12,307 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_c955dd0a-c720-45de-925e-addb6dbdae31/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b815902b6076f117270384fcf6c6d0e52ac3ebb [2020-12-01 15:54:12,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:54:12,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:54:12,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:54:12,661 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:54:12,662 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:54:12,663 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem11_label28.c [2020-12-01 15:54:12,763 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/data/984b29254/d5c200eb0fa149b6a6f106ee16d45467/FLAG85a2d073b [2020-12-01 15:54:13,501 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:54:13,502 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/sv-benchmarks/c/eca-rers2012/Problem11_label28.c [2020-12-01 15:54:13,532 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/data/984b29254/d5c200eb0fa149b6a6f106ee16d45467/FLAG85a2d073b [2020-12-01 15:54:13,679 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/data/984b29254/d5c200eb0fa149b6a6f106ee16d45467 [2020-12-01 15:54:13,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:54:13,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:54:13,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:54:13,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:54:13,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:54:13,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:54:13" (1/1) ... [2020-12-01 15:54:13,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@86dc191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:13, skipping insertion in model container [2020-12-01 15:54:13,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:54:13" (1/1) ... [2020-12-01 15:54:13,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:54:13,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:54:14,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:54:14,457 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:54:14,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:54:14,658 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:54:14,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:14 WrapperNode [2020-12-01 15:54:14,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:54:14,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:54:14,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:54:14,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:54:14,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:14" (1/1) ... [2020-12-01 15:54:14,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:14" (1/1) ... [2020-12-01 15:54:14,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:54:14,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:54:14,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:54:14,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:54:14,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:14" (1/1) ... [2020-12-01 15:54:14,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:14" (1/1) ... [2020-12-01 15:54:14,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:14" (1/1) ... [2020-12-01 15:54:14,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:14" (1/1) ... [2020-12-01 15:54:15,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:14" (1/1) ... [2020-12-01 15:54:15,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:14" (1/1) ... [2020-12-01 15:54:15,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:14" (1/1) ... [2020-12-01 15:54:15,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:54:15,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:54:15,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:54:15,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:54:15,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:54:15,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:54:15,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:54:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:54:15,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:54:17,266 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:54:17,267 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 15:54:17,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:54:17 BoogieIcfgContainer [2020-12-01 15:54:17,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:54:17,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:54:17,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:54:17,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:54:17,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:54:13" (1/3) ... [2020-12-01 15:54:17,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f97efd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:54:17, skipping insertion in model container [2020-12-01 15:54:17,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:54:14" (2/3) ... [2020-12-01 15:54:17,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f97efd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:54:17, skipping insertion in model container [2020-12-01 15:54:17,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:54:17" (3/3) ... [2020-12-01 15:54:17,282 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label28.c [2020-12-01 15:54:17,302 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:54:17,306 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:54:17,318 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:54:17,368 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:54:17,368 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:54:17,368 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:54:17,368 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:54:17,368 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:54:17,369 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:54:17,369 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:54:17,369 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:54:17,402 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-12-01 15:54:17,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-01 15:54:17,413 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:54:17,414 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:17,414 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:54:17,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:17,421 INFO L82 PathProgramCache]: Analyzing trace with hash 563919826, now seen corresponding path program 1 times [2020-12-01 15:54:17,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:17,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223541013] [2020-12-01 15:54:17,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:17,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:54:17,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223541013] [2020-12-01 15:54:17,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:54:17,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:54:17,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119729206] [2020-12-01 15:54:17,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:54:17,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:17,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:54:17,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:17,845 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-12-01 15:54:19,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:19,689 INFO L93 Difference]: Finished difference Result 770 states and 1361 transitions. [2020-12-01 15:54:19,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:54:19,691 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-12-01 15:54:19,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:54:19,731 INFO L225 Difference]: With dead ends: 770 [2020-12-01 15:54:19,731 INFO L226 Difference]: Without dead ends: 422 [2020-12-01 15:54:19,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:19,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-12-01 15:54:19,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 412. [2020-12-01 15:54:19,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-12-01 15:54:19,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 626 transitions. [2020-12-01 15:54:19,847 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 626 transitions. Word has length 48 [2020-12-01 15:54:19,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:54:19,848 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 626 transitions. [2020-12-01 15:54:19,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:54:19,849 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 626 transitions. [2020-12-01 15:54:19,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-12-01 15:54:19,854 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:54:19,854 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, 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] [2020-12-01 15:54:19,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:54:19,855 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:54:19,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:19,856 INFO L82 PathProgramCache]: Analyzing trace with hash 964370735, now seen corresponding path program 1 times [2020-12-01 15:54:19,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:19,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774712878] [2020-12-01 15:54:19,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:20,104 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:54:20,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774712878] [2020-12-01 15:54:20,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:54:20,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:54:20,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534827251] [2020-12-01 15:54:20,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:54:20,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:20,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:54:20,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:20,108 INFO L87 Difference]: Start difference. First operand 412 states and 626 transitions. Second operand 3 states. [2020-12-01 15:54:21,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:21,382 INFO L93 Difference]: Finished difference Result 1199 states and 1829 transitions. [2020-12-01 15:54:21,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:54:21,383 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2020-12-01 15:54:21,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:54:21,390 INFO L225 Difference]: With dead ends: 1199 [2020-12-01 15:54:21,390 INFO L226 Difference]: Without dead ends: 789 [2020-12-01 15:54:21,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:21,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2020-12-01 15:54:21,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 789. [2020-12-01 15:54:21,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2020-12-01 15:54:21,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1083 transitions. [2020-12-01 15:54:21,431 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1083 transitions. Word has length 114 [2020-12-01 15:54:21,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:54:21,432 INFO L481 AbstractCegarLoop]: Abstraction has 789 states and 1083 transitions. [2020-12-01 15:54:21,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:54:21,432 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1083 transitions. [2020-12-01 15:54:21,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-12-01 15:54:21,438 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:54:21,438 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, 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] [2020-12-01 15:54:21,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:54:21,439 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:54:21,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:21,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1674242277, now seen corresponding path program 1 times [2020-12-01 15:54:21,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:21,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492768723] [2020-12-01 15:54:21,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:21,722 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:54:21,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492768723] [2020-12-01 15:54:21,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:54:21,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:54:21,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320727471] [2020-12-01 15:54:21,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:54:21,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:21,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:54:21,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:21,735 INFO L87 Difference]: Start difference. First operand 789 states and 1083 transitions. Second operand 3 states. [2020-12-01 15:54:22,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:22,867 INFO L93 Difference]: Finished difference Result 2314 states and 3181 transitions. [2020-12-01 15:54:22,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:54:22,873 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2020-12-01 15:54:22,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:54:22,884 INFO L225 Difference]: With dead ends: 2314 [2020-12-01 15:54:22,884 INFO L226 Difference]: Without dead ends: 1527 [2020-12-01 15:54:22,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:22,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2020-12-01 15:54:22,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1526. [2020-12-01 15:54:22,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-12-01 15:54:22,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1856 transitions. [2020-12-01 15:54:22,933 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1856 transitions. Word has length 118 [2020-12-01 15:54:22,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:54:22,934 INFO L481 AbstractCegarLoop]: Abstraction has 1526 states and 1856 transitions. [2020-12-01 15:54:22,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:54:22,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1856 transitions. [2020-12-01 15:54:22,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-12-01 15:54:22,939 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:54:22,939 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:22,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:54:22,939 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:54:22,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:22,940 INFO L82 PathProgramCache]: Analyzing trace with hash -132716311, now seen corresponding path program 1 times [2020-12-01 15:54:22,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:22,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455821418] [2020-12-01 15:54:22,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:23,139 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:54:23,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455821418] [2020-12-01 15:54:23,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:54:23,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:54:23,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855311505] [2020-12-01 15:54:23,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:54:23,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:23,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:54:23,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:23,144 INFO L87 Difference]: Start difference. First operand 1526 states and 1856 transitions. Second operand 3 states. [2020-12-01 15:54:24,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:24,420 INFO L93 Difference]: Finished difference Result 3614 states and 4469 transitions. [2020-12-01 15:54:24,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:54:24,421 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2020-12-01 15:54:24,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:54:24,435 INFO L225 Difference]: With dead ends: 3614 [2020-12-01 15:54:24,435 INFO L226 Difference]: Without dead ends: 2274 [2020-12-01 15:54:24,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:24,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2020-12-01 15:54:24,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1897. [2020-12-01 15:54:24,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1897 states. [2020-12-01 15:54:24,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2305 transitions. [2020-12-01 15:54:24,497 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2305 transitions. Word has length 175 [2020-12-01 15:54:24,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:54:24,500 INFO L481 AbstractCegarLoop]: Abstraction has 1897 states and 2305 transitions. [2020-12-01 15:54:24,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:54:24,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2305 transitions. [2020-12-01 15:54:24,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-12-01 15:54:24,510 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:54:24,511 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:24,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 15:54:24,511 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:54:24,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:24,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1360573599, now seen corresponding path program 1 times [2020-12-01 15:54:24,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:24,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630835756] [2020-12-01 15:54:24,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:24,829 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-12-01 15:54:24,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630835756] [2020-12-01 15:54:24,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:54:24,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:54:24,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590694787] [2020-12-01 15:54:24,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:54:24,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:24,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:54:24,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:24,831 INFO L87 Difference]: Start difference. First operand 1897 states and 2305 transitions. Second operand 3 states. [2020-12-01 15:54:26,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:26,269 INFO L93 Difference]: Finished difference Result 4351 states and 5354 transitions. [2020-12-01 15:54:26,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:54:26,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 230 [2020-12-01 15:54:26,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:54:26,285 INFO L225 Difference]: With dead ends: 4351 [2020-12-01 15:54:26,285 INFO L226 Difference]: Without dead ends: 2456 [2020-12-01 15:54:26,288 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:26,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2456 states. [2020-12-01 15:54:26,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2456 to 2265. [2020-12-01 15:54:26,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2265 states. [2020-12-01 15:54:26,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 2751 transitions. [2020-12-01 15:54:26,349 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 2751 transitions. Word has length 230 [2020-12-01 15:54:26,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:54:26,350 INFO L481 AbstractCegarLoop]: Abstraction has 2265 states and 2751 transitions. [2020-12-01 15:54:26,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:54:26,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 2751 transitions. [2020-12-01 15:54:26,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-12-01 15:54:26,356 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:54:26,356 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:26,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-01 15:54:26,357 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:54:26,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:26,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1374226540, now seen corresponding path program 1 times [2020-12-01 15:54:26,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:26,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93772903] [2020-12-01 15:54:26,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:26,722 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:54:26,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93772903] [2020-12-01 15:54:26,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:54:26,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:54:26,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885483552] [2020-12-01 15:54:26,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:54:26,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:26,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:54:26,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:26,728 INFO L87 Difference]: Start difference. First operand 2265 states and 2751 transitions. Second operand 3 states. [2020-12-01 15:54:28,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:28,217 INFO L93 Difference]: Finished difference Result 6017 states and 7428 transitions. [2020-12-01 15:54:28,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:54:28,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 257 [2020-12-01 15:54:28,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:54:28,245 INFO L225 Difference]: With dead ends: 6017 [2020-12-01 15:54:28,245 INFO L226 Difference]: Without dead ends: 3754 [2020-12-01 15:54:28,249 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:28,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3754 states. [2020-12-01 15:54:28,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3754 to 3750. [2020-12-01 15:54:28,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3750 states. [2020-12-01 15:54:28,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3750 states to 3750 states and 4542 transitions. [2020-12-01 15:54:28,391 INFO L78 Accepts]: Start accepts. Automaton has 3750 states and 4542 transitions. Word has length 257 [2020-12-01 15:54:28,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:54:28,392 INFO L481 AbstractCegarLoop]: Abstraction has 3750 states and 4542 transitions. [2020-12-01 15:54:28,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:54:28,392 INFO L276 IsEmpty]: Start isEmpty. Operand 3750 states and 4542 transitions. [2020-12-01 15:54:28,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-12-01 15:54:28,399 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:54:28,400 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:28,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-01 15:54:28,400 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:54:28,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:28,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1410851835, now seen corresponding path program 1 times [2020-12-01 15:54:28,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:28,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345513850] [2020-12-01 15:54:28,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:28,741 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:54:28,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345513850] [2020-12-01 15:54:28,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:54:28,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:54:28,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983279783] [2020-12-01 15:54:28,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:54:28,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:28,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:54:28,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:54:28,744 INFO L87 Difference]: Start difference. First operand 3750 states and 4542 transitions. Second operand 5 states. [2020-12-01 15:54:32,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:32,285 INFO L93 Difference]: Finished difference Result 12303 states and 15293 transitions. [2020-12-01 15:54:32,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:54:32,286 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 267 [2020-12-01 15:54:32,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:54:32,339 INFO L225 Difference]: With dead ends: 12303 [2020-12-01 15:54:32,339 INFO L226 Difference]: Without dead ends: 8555 [2020-12-01 15:54:32,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:54:32,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8555 states. [2020-12-01 15:54:32,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8555 to 8358. [2020-12-01 15:54:32,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8358 states. [2020-12-01 15:54:32,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8358 states to 8358 states and 10067 transitions. [2020-12-01 15:54:32,571 INFO L78 Accepts]: Start accepts. Automaton has 8358 states and 10067 transitions. Word has length 267 [2020-12-01 15:54:32,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:54:32,572 INFO L481 AbstractCegarLoop]: Abstraction has 8358 states and 10067 transitions. [2020-12-01 15:54:32,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:54:32,573 INFO L276 IsEmpty]: Start isEmpty. Operand 8358 states and 10067 transitions. [2020-12-01 15:54:32,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-12-01 15:54:32,583 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:54:32,583 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:32,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-01 15:54:32,584 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:54:32,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:32,584 INFO L82 PathProgramCache]: Analyzing trace with hash 4854146, now seen corresponding path program 1 times [2020-12-01 15:54:32,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:32,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493121709] [2020-12-01 15:54:32,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:32,922 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-12-01 15:54:32,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493121709] [2020-12-01 15:54:32,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:54:32,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:54:32,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206497104] [2020-12-01 15:54:32,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:54:32,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:32,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:54:32,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:32,925 INFO L87 Difference]: Start difference. First operand 8358 states and 10067 transitions. Second operand 3 states. [2020-12-01 15:54:34,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:34,258 INFO L93 Difference]: Finished difference Result 19472 states and 23738 transitions. [2020-12-01 15:54:34,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:54:34,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 278 [2020-12-01 15:54:34,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:54:34,336 INFO L225 Difference]: With dead ends: 19472 [2020-12-01 15:54:34,336 INFO L226 Difference]: Without dead ends: 11484 [2020-12-01 15:54:34,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:34,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11484 states. [2020-12-01 15:54:34,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11484 to 11300. [2020-12-01 15:54:34,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11300 states. [2020-12-01 15:54:34,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11300 states to 11300 states and 13516 transitions. [2020-12-01 15:54:34,657 INFO L78 Accepts]: Start accepts. Automaton has 11300 states and 13516 transitions. Word has length 278 [2020-12-01 15:54:34,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:54:34,658 INFO L481 AbstractCegarLoop]: Abstraction has 11300 states and 13516 transitions. [2020-12-01 15:54:34,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:54:34,658 INFO L276 IsEmpty]: Start isEmpty. Operand 11300 states and 13516 transitions. [2020-12-01 15:54:34,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-12-01 15:54:34,667 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:54:34,668 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:34,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-01 15:54:34,668 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:54:34,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:34,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1645742107, now seen corresponding path program 1 times [2020-12-01 15:54:34,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:34,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674808682] [2020-12-01 15:54:34,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:34,970 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 91 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:54:34,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674808682] [2020-12-01 15:54:34,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763984035] [2020-12-01 15:54:34,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:54:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:35,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:54:35,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:54:35,958 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:54:35,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:54:35,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-12-01 15:54:35,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23009751] [2020-12-01 15:54:35,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:54:35,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:35,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:54:35,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:54:35,961 INFO L87 Difference]: Start difference. First operand 11300 states and 13516 transitions. Second operand 3 states. [2020-12-01 15:54:37,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:37,457 INFO L93 Difference]: Finished difference Result 23538 states and 28257 transitions. [2020-12-01 15:54:37,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:54:37,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 281 [2020-12-01 15:54:37,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:54:37,489 INFO L225 Difference]: With dead ends: 23538 [2020-12-01 15:54:37,489 INFO L226 Difference]: Without dead ends: 12608 [2020-12-01 15:54:37,506 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:54:37,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12608 states. [2020-12-01 15:54:37,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12608 to 12599. [2020-12-01 15:54:37,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12599 states. [2020-12-01 15:54:37,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12599 states to 12599 states and 15024 transitions. [2020-12-01 15:54:37,759 INFO L78 Accepts]: Start accepts. Automaton has 12599 states and 15024 transitions. Word has length 281 [2020-12-01 15:54:37,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:54:37,760 INFO L481 AbstractCegarLoop]: Abstraction has 12599 states and 15024 transitions. [2020-12-01 15:54:37,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:54:37,760 INFO L276 IsEmpty]: Start isEmpty. Operand 12599 states and 15024 transitions. [2020-12-01 15:54:37,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-12-01 15:54:37,771 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:54:37,772 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:38,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-12-01 15:54:38,001 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:54:38,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:38,001 INFO L82 PathProgramCache]: Analyzing trace with hash -161630474, now seen corresponding path program 1 times [2020-12-01 15:54:38,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:38,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161763761] [2020-12-01 15:54:38,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:38,334 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2020-12-01 15:54:38,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161763761] [2020-12-01 15:54:38,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:54:38,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:54:38,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671999957] [2020-12-01 15:54:38,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:54:38,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:38,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:54:38,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:38,340 INFO L87 Difference]: Start difference. First operand 12599 states and 15024 transitions. Second operand 3 states. [2020-12-01 15:54:39,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:39,917 INFO L93 Difference]: Finished difference Result 27404 states and 32946 transitions. [2020-12-01 15:54:39,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:54:39,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 284 [2020-12-01 15:54:39,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:54:39,953 INFO L225 Difference]: With dead ends: 27404 [2020-12-01 15:54:39,953 INFO L226 Difference]: Without dead ends: 15175 [2020-12-01 15:54:39,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:39,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15175 states. [2020-12-01 15:54:40,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15175 to 14807. [2020-12-01 15:54:40,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14807 states. [2020-12-01 15:54:40,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14807 states to 14807 states and 17350 transitions. [2020-12-01 15:54:40,232 INFO L78 Accepts]: Start accepts. Automaton has 14807 states and 17350 transitions. Word has length 284 [2020-12-01 15:54:40,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:54:40,233 INFO L481 AbstractCegarLoop]: Abstraction has 14807 states and 17350 transitions. [2020-12-01 15:54:40,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:54:40,234 INFO L276 IsEmpty]: Start isEmpty. Operand 14807 states and 17350 transitions. [2020-12-01 15:54:40,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-12-01 15:54:40,248 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:54:40,248 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, 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, 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] [2020-12-01 15:54:40,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-01 15:54:40,249 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:54:40,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:40,249 INFO L82 PathProgramCache]: Analyzing trace with hash 2089505423, now seen corresponding path program 1 times [2020-12-01 15:54:40,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:40,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186235704] [2020-12-01 15:54:40,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:40,558 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-12-01 15:54:40,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186235704] [2020-12-01 15:54:40,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:54:40,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:54:40,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588754216] [2020-12-01 15:54:40,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:54:40,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:40,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:54:40,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:40,561 INFO L87 Difference]: Start difference. First operand 14807 states and 17350 transitions. Second operand 3 states. [2020-12-01 15:54:41,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:41,996 INFO L93 Difference]: Finished difference Result 32187 states and 38001 transitions. [2020-12-01 15:54:41,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:54:41,997 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 310 [2020-12-01 15:54:41,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:54:42,035 INFO L225 Difference]: With dead ends: 32187 [2020-12-01 15:54:42,035 INFO L226 Difference]: Without dead ends: 17566 [2020-12-01 15:54:42,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:42,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17566 states. [2020-12-01 15:54:42,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17566 to 16646. [2020-12-01 15:54:42,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16646 states. [2020-12-01 15:54:42,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16646 states to 16646 states and 19387 transitions. [2020-12-01 15:54:42,408 INFO L78 Accepts]: Start accepts. Automaton has 16646 states and 19387 transitions. Word has length 310 [2020-12-01 15:54:42,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:54:42,411 INFO L481 AbstractCegarLoop]: Abstraction has 16646 states and 19387 transitions. [2020-12-01 15:54:42,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:54:42,411 INFO L276 IsEmpty]: Start isEmpty. Operand 16646 states and 19387 transitions. [2020-12-01 15:54:42,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-12-01 15:54:42,432 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:54:42,432 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, 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, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 15:54:42,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-01 15:54:42,433 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:54:42,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:42,433 INFO L82 PathProgramCache]: Analyzing trace with hash 365279471, now seen corresponding path program 1 times [2020-12-01 15:54:42,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:42,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507589116] [2020-12-01 15:54:42,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:42,719 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-12-01 15:54:42,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507589116] [2020-12-01 15:54:42,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:54:42,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:54:42,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252304128] [2020-12-01 15:54:42,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:54:42,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:42,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:54:42,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:42,722 INFO L87 Difference]: Start difference. First operand 16646 states and 19387 transitions. Second operand 3 states. [2020-12-01 15:54:44,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:44,035 INFO L93 Difference]: Finished difference Result 33288 states and 38878 transitions. [2020-12-01 15:54:44,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:54:44,036 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 331 [2020-12-01 15:54:44,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:54:44,075 INFO L225 Difference]: With dead ends: 33288 [2020-12-01 15:54:44,075 INFO L226 Difference]: Without dead ends: 17012 [2020-12-01 15:54:44,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:54:44,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17012 states. [2020-12-01 15:54:44,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17012 to 15538. [2020-12-01 15:54:44,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15538 states. [2020-12-01 15:54:44,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15538 states to 15538 states and 17647 transitions. [2020-12-01 15:54:44,362 INFO L78 Accepts]: Start accepts. Automaton has 15538 states and 17647 transitions. Word has length 331 [2020-12-01 15:54:44,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:54:44,363 INFO L481 AbstractCegarLoop]: Abstraction has 15538 states and 17647 transitions. [2020-12-01 15:54:44,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:54:44,364 INFO L276 IsEmpty]: Start isEmpty. Operand 15538 states and 17647 transitions. [2020-12-01 15:54:44,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-12-01 15:54:44,378 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:54:44,379 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 15:54:44,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-01 15:54:44,379 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:54:44,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:44,380 INFO L82 PathProgramCache]: Analyzing trace with hash -265981948, now seen corresponding path program 1 times [2020-12-01 15:54:44,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:44,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137481164] [2020-12-01 15:54:44,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:44,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:45,189 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 281 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:54:45,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137481164] [2020-12-01 15:54:45,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511817340] [2020-12-01 15:54:45,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:54:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:45,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:54:45,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:54:46,037 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-12-01 15:54:46,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:54:46,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-01 15:54:46,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454026800] [2020-12-01 15:54:46,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:54:46,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:46,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:54:46,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:54:46,041 INFO L87 Difference]: Start difference. First operand 15538 states and 17647 transitions. Second operand 3 states. [2020-12-01 15:54:47,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:47,251 INFO L93 Difference]: Finished difference Result 33107 states and 37582 transitions. [2020-12-01 15:54:47,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:54:47,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 335 [2020-12-01 15:54:47,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:54:47,283 INFO L225 Difference]: With dead ends: 33107 [2020-12-01 15:54:47,284 INFO L226 Difference]: Without dead ends: 17755 [2020-12-01 15:54:47,294 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:54:47,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17755 states. [2020-12-01 15:54:47,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17755 to 16280. [2020-12-01 15:54:47,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16280 states. [2020-12-01 15:54:47,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16280 states to 16280 states and 18429 transitions. [2020-12-01 15:54:47,656 INFO L78 Accepts]: Start accepts. Automaton has 16280 states and 18429 transitions. Word has length 335 [2020-12-01 15:54:47,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:54:47,657 INFO L481 AbstractCegarLoop]: Abstraction has 16280 states and 18429 transitions. [2020-12-01 15:54:47,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:54:47,657 INFO L276 IsEmpty]: Start isEmpty. Operand 16280 states and 18429 transitions. [2020-12-01 15:54:47,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2020-12-01 15:54:47,675 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:54:47,676 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-12-01 15:54:47,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-01 15:54:47,895 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:54:47,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:47,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1477135455, now seen corresponding path program 1 times [2020-12-01 15:54:47,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:47,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031011085] [2020-12-01 15:54:47,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:48,540 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 252 proven. 51 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-12-01 15:54:48,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031011085] [2020-12-01 15:54:48,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659840285] [2020-12-01 15:54:48,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:54:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:48,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:54:48,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:54:49,340 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 332 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-12-01 15:54:49,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:54:49,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-12-01 15:54:49,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693123809] [2020-12-01 15:54:49,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:54:49,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:49,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:54:49,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:54:49,347 INFO L87 Difference]: Start difference. First operand 16280 states and 18429 transitions. Second operand 3 states. [2020-12-01 15:54:50,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:50,402 INFO L93 Difference]: Finished difference Result 33295 states and 37629 transitions. [2020-12-01 15:54:50,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:54:50,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 356 [2020-12-01 15:54:50,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:54:50,431 INFO L225 Difference]: With dead ends: 33295 [2020-12-01 15:54:50,431 INFO L226 Difference]: Without dead ends: 17017 [2020-12-01 15:54:50,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:54:50,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17017 states. [2020-12-01 15:54:50,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17017 to 14992. [2020-12-01 15:54:50,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14992 states. [2020-12-01 15:54:50,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14992 states to 14992 states and 16914 transitions. [2020-12-01 15:54:50,679 INFO L78 Accepts]: Start accepts. Automaton has 14992 states and 16914 transitions. Word has length 356 [2020-12-01 15:54:50,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:54:50,680 INFO L481 AbstractCegarLoop]: Abstraction has 14992 states and 16914 transitions. [2020-12-01 15:54:50,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:54:50,681 INFO L276 IsEmpty]: Start isEmpty. Operand 14992 states and 16914 transitions. [2020-12-01 15:54:50,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2020-12-01 15:54:50,698 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:54:50,699 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:50,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-01 15:54:50,925 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:54:50,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:50,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1230157879, now seen corresponding path program 1 times [2020-12-01 15:54:50,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:50,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892190461] [2020-12-01 15:54:50,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:51,870 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 281 proven. 58 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-12-01 15:54:51,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892190461] [2020-12-01 15:54:51,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601320428] [2020-12-01 15:54:51,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:54:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:52,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:54:52,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:54:52,882 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 202 proven. 137 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-12-01 15:54:52,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:54:52,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2020-12-01 15:54:52,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758582753] [2020-12-01 15:54:52,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-01 15:54:52,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:52,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-01 15:54:52,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:54:52,887 INFO L87 Difference]: Start difference. First operand 14992 states and 16914 transitions. Second operand 9 states. [2020-12-01 15:55:00,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:55:00,998 INFO L93 Difference]: Finished difference Result 38634 states and 43631 transitions. [2020-12-01 15:55:00,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-01 15:55:00,999 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 373 [2020-12-01 15:55:01,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:55:01,042 INFO L225 Difference]: With dead ends: 38634 [2020-12-01 15:55:01,043 INFO L226 Difference]: Without dead ends: 23092 [2020-12-01 15:55:01,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2020-12-01 15:55:01,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23092 states. [2020-12-01 15:55:01,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23092 to 15899. [2020-12-01 15:55:01,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15899 states. [2020-12-01 15:55:01,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15899 states to 15899 states and 17621 transitions. [2020-12-01 15:55:01,567 INFO L78 Accepts]: Start accepts. Automaton has 15899 states and 17621 transitions. Word has length 373 [2020-12-01 15:55:01,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:55:01,568 INFO L481 AbstractCegarLoop]: Abstraction has 15899 states and 17621 transitions. [2020-12-01 15:55:01,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-01 15:55:01,569 INFO L276 IsEmpty]: Start isEmpty. Operand 15899 states and 17621 transitions. [2020-12-01 15:55:01,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2020-12-01 15:55:01,586 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:55:01,587 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:55:01,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:55:01,812 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:55:01,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:01,813 INFO L82 PathProgramCache]: Analyzing trace with hash 642397153, now seen corresponding path program 1 times [2020-12-01 15:55:01,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:01,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984835507] [2020-12-01 15:55:01,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:02,334 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 137 proven. 202 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-12-01 15:55:02,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984835507] [2020-12-01 15:55:02,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264097774] [2020-12-01 15:55:02,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:55:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:02,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:55:02,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:55:03,182 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 391 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-12-01 15:55:03,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:55:03,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-12-01 15:55:03,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482227450] [2020-12-01 15:55:03,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:55:03,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:55:03,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:55:03,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:55:03,186 INFO L87 Difference]: Start difference. First operand 15899 states and 17621 transitions. Second operand 4 states. [2020-12-01 15:55:05,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:55:05,513 INFO L93 Difference]: Finished difference Result 33276 states and 36920 transitions. [2020-12-01 15:55:05,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:55:05,514 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 379 [2020-12-01 15:55:05,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:55:05,545 INFO L225 Difference]: With dead ends: 33276 [2020-12-01 15:55:05,545 INFO L226 Difference]: Without dead ends: 17747 [2020-12-01 15:55:05,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:55:05,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17747 states. [2020-12-01 15:55:05,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17747 to 15901. [2020-12-01 15:55:05,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15901 states. [2020-12-01 15:55:05,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15901 states to 15901 states and 17623 transitions. [2020-12-01 15:55:05,830 INFO L78 Accepts]: Start accepts. Automaton has 15901 states and 17623 transitions. Word has length 379 [2020-12-01 15:55:05,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:55:05,831 INFO L481 AbstractCegarLoop]: Abstraction has 15901 states and 17623 transitions. [2020-12-01 15:55:05,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:55:05,831 INFO L276 IsEmpty]: Start isEmpty. Operand 15901 states and 17623 transitions. [2020-12-01 15:55:05,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2020-12-01 15:55:05,845 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:55:05,845 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:55:06,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-12-01 15:55:06,068 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:55:06,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:06,069 INFO L82 PathProgramCache]: Analyzing trace with hash -657969673, now seen corresponding path program 1 times [2020-12-01 15:55:06,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:06,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495321492] [2020-12-01 15:55:06,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:06,476 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 137 proven. 211 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-01 15:55:06,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495321492] [2020-12-01 15:55:06,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229516710] [2020-12-01 15:55:06,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:55:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:06,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:55:06,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:55:07,398 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 348 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-01 15:55:07,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:55:07,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-12-01 15:55:07,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456224112] [2020-12-01 15:55:07,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:55:07,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:55:07,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:55:07,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:55:07,402 INFO L87 Difference]: Start difference. First operand 15901 states and 17623 transitions. Second operand 3 states. [2020-12-01 15:55:08,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:55:08,968 INFO L93 Difference]: Finished difference Result 34772 states and 38757 transitions. [2020-12-01 15:55:08,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:55:08,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 393 [2020-12-01 15:55:08,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:55:08,995 INFO L225 Difference]: With dead ends: 34772 [2020-12-01 15:55:08,995 INFO L226 Difference]: Without dead ends: 19241 [2020-12-01 15:55:09,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:55:09,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19241 states. [2020-12-01 15:55:09,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19241 to 18864. [2020-12-01 15:55:09,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18864 states. [2020-12-01 15:55:09,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18864 states to 18864 states and 21027 transitions. [2020-12-01 15:55:09,341 INFO L78 Accepts]: Start accepts. Automaton has 18864 states and 21027 transitions. Word has length 393 [2020-12-01 15:55:09,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:55:09,341 INFO L481 AbstractCegarLoop]: Abstraction has 18864 states and 21027 transitions. [2020-12-01 15:55:09,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:55:09,342 INFO L276 IsEmpty]: Start isEmpty. Operand 18864 states and 21027 transitions. [2020-12-01 15:55:09,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2020-12-01 15:55:09,363 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:55:09,364 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:55:09,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-12-01 15:55:09,590 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:55:09,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:09,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1139530464, now seen corresponding path program 1 times [2020-12-01 15:55:09,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:09,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902619726] [2020-12-01 15:55:09,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:10,361 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 137 proven. 229 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2020-12-01 15:55:10,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902619726] [2020-12-01 15:55:10,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274772044] [2020-12-01 15:55:10,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:55:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:10,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-01 15:55:10,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:55:12,062 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 242 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:55:12,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:55:12,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2020-12-01 15:55:12,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648131842] [2020-12-01 15:55:12,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-01 15:55:12,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:55:12,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-01 15:55:12,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:55:12,066 INFO L87 Difference]: Start difference. First operand 18864 states and 21027 transitions. Second operand 9 states. [2020-12-01 15:55:19,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:55:19,446 INFO L93 Difference]: Finished difference Result 51582 states and 57194 transitions. [2020-12-01 15:55:19,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-01 15:55:19,446 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 415 [2020-12-01 15:55:19,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:55:19,478 INFO L225 Difference]: With dead ends: 51582 [2020-12-01 15:55:19,479 INFO L226 Difference]: Without dead ends: 33088 [2020-12-01 15:55:19,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2020-12-01 15:55:19,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33088 states. [2020-12-01 15:55:19,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33088 to 23834. [2020-12-01 15:55:19,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23834 states. [2020-12-01 15:55:19,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23834 states to 23834 states and 26455 transitions. [2020-12-01 15:55:19,909 INFO L78 Accepts]: Start accepts. Automaton has 23834 states and 26455 transitions. Word has length 415 [2020-12-01 15:55:19,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:55:19,909 INFO L481 AbstractCegarLoop]: Abstraction has 23834 states and 26455 transitions. [2020-12-01 15:55:19,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-01 15:55:19,910 INFO L276 IsEmpty]: Start isEmpty. Operand 23834 states and 26455 transitions. [2020-12-01 15:55:19,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2020-12-01 15:55:19,921 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:55:19,922 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:55:20,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-01 15:55:20,124 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:55:20,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:20,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1655352938, now seen corresponding path program 1 times [2020-12-01 15:55:20,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:20,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603752434] [2020-12-01 15:55:20,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:21,180 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 474 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:55:21,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603752434] [2020-12-01 15:55:21,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068730165] [2020-12-01 15:55:21,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:55:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:21,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:55:21,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:55:22,491 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-01 15:55:22,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:55:22,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2020-12-01 15:55:22,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669116621] [2020-12-01 15:55:22,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:55:22,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:55:22,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:55:22,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:55:22,494 INFO L87 Difference]: Start difference. First operand 23834 states and 26455 transitions. Second operand 3 states. [2020-12-01 15:55:23,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:55:23,898 INFO L93 Difference]: Finished difference Result 47669 states and 52943 transitions. [2020-12-01 15:55:23,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:55:23,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 431 [2020-12-01 15:55:23,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:55:23,924 INFO L225 Difference]: With dead ends: 47669 [2020-12-01 15:55:23,924 INFO L226 Difference]: Without dead ends: 24205 [2020-12-01 15:55:23,938 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:55:23,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24205 states. [2020-12-01 15:55:24,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24205 to 24202. [2020-12-01 15:55:24,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24202 states. [2020-12-01 15:55:24,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24202 states to 24202 states and 26826 transitions. [2020-12-01 15:55:24,512 INFO L78 Accepts]: Start accepts. Automaton has 24202 states and 26826 transitions. Word has length 431 [2020-12-01 15:55:24,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:55:24,513 INFO L481 AbstractCegarLoop]: Abstraction has 24202 states and 26826 transitions. [2020-12-01 15:55:24,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:55:24,513 INFO L276 IsEmpty]: Start isEmpty. Operand 24202 states and 26826 transitions. [2020-12-01 15:55:24,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2020-12-01 15:55:24,531 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:55:24,531 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:55:24,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:55:24,757 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:55:24,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:24,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1263001737, now seen corresponding path program 1 times [2020-12-01 15:55:24,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:24,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313734672] [2020-12-01 15:55:24,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:25,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 677 proven. 190 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2020-12-01 15:55:25,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313734672] [2020-12-01 15:55:25,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710304422] [2020-12-01 15:55:25,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:55:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:25,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:55:25,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:55:26,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 831 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2020-12-01 15:55:26,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:55:26,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-01 15:55:26,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939364373] [2020-12-01 15:55:26,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:55:26,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:55:26,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:55:26,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:55:26,577 INFO L87 Difference]: Start difference. First operand 24202 states and 26826 transitions. Second operand 3 states. [2020-12-01 15:55:27,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:55:27,952 INFO L93 Difference]: Finished difference Result 53013 states and 58735 transitions. [2020-12-01 15:55:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:55:27,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 538 [2020-12-01 15:55:27,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:55:27,981 INFO L225 Difference]: With dead ends: 53013 [2020-12-01 15:55:27,982 INFO L226 Difference]: Without dead ends: 29181 [2020-12-01 15:55:27,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:55:28,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29181 states. [2020-12-01 15:55:28,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29181 to 23472. [2020-12-01 15:55:28,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23472 states. [2020-12-01 15:55:28,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23472 states to 23472 states and 25909 transitions. [2020-12-01 15:55:28,287 INFO L78 Accepts]: Start accepts. Automaton has 23472 states and 25909 transitions. Word has length 538 [2020-12-01 15:55:28,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:55:28,287 INFO L481 AbstractCegarLoop]: Abstraction has 23472 states and 25909 transitions. [2020-12-01 15:55:28,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:55:28,288 INFO L276 IsEmpty]: Start isEmpty. Operand 23472 states and 25909 transitions. [2020-12-01 15:55:28,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2020-12-01 15:55:28,307 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:55:28,308 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:55:28,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:55:28,525 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:55:28,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:28,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1250467456, now seen corresponding path program 1 times [2020-12-01 15:55:28,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:28,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004104856] [2020-12-01 15:55:28,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:29,401 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 183 proven. 406 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2020-12-01 15:55:29,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004104856] [2020-12-01 15:55:29,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754732866] [2020-12-01 15:55:29,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:55:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:29,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:55:29,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:55:30,523 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:55:31,271 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 235 proven. 452 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-12-01 15:55:31,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:55:31,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6 [2020-12-01 15:55:31,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081943196] [2020-12-01 15:55:31,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:55:31,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:55:31,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:55:31,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:55:31,274 INFO L87 Difference]: Start difference. First operand 23472 states and 25909 transitions. Second operand 7 states. [2020-12-01 15:55:35,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:55:35,721 INFO L93 Difference]: Finished difference Result 63003 states and 69313 transitions. [2020-12-01 15:55:35,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:55:35,722 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 570 [2020-12-01 15:55:35,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:55:35,763 INFO L225 Difference]: With dead ends: 63003 [2020-12-01 15:55:35,763 INFO L226 Difference]: Without dead ends: 39901 [2020-12-01 15:55:35,775 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 573 GetRequests, 568 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:55:35,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39901 states. [2020-12-01 15:55:36,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39901 to 29382. [2020-12-01 15:55:36,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29382 states. [2020-12-01 15:55:36,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29382 states to 29382 states and 32384 transitions. [2020-12-01 15:55:36,209 INFO L78 Accepts]: Start accepts. Automaton has 29382 states and 32384 transitions. Word has length 570 [2020-12-01 15:55:36,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:55:36,210 INFO L481 AbstractCegarLoop]: Abstraction has 29382 states and 32384 transitions. [2020-12-01 15:55:36,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:55:36,210 INFO L276 IsEmpty]: Start isEmpty. Operand 29382 states and 32384 transitions. [2020-12-01 15:55:36,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2020-12-01 15:55:36,233 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:55:36,233 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:55:36,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:55:36,461 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:55:36,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:36,461 INFO L82 PathProgramCache]: Analyzing trace with hash -51591260, now seen corresponding path program 1 times [2020-12-01 15:55:36,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:36,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236433067] [2020-12-01 15:55:36,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:37,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1203 backedges. 711 proven. 190 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2020-12-01 15:55:37,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236433067] [2020-12-01 15:55:37,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813184576] [2020-12-01 15:55:37,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:55:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:37,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:55:37,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:55:38,355 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:55:38,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1203 backedges. 867 proven. 46 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2020-12-01 15:55:38,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:55:38,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2020-12-01 15:55:38,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666630901] [2020-12-01 15:55:38,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-01 15:55:38,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:55:38,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-01 15:55:38,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:55:38,862 INFO L87 Difference]: Start difference. First operand 29382 states and 32384 transitions. Second operand 10 states. [2020-12-01 15:55:49,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:55:49,938 INFO L93 Difference]: Finished difference Result 79246 states and 87111 transitions. [2020-12-01 15:55:49,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-01 15:55:49,941 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 581 [2020-12-01 15:55:49,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:55:49,992 INFO L225 Difference]: With dead ends: 79246 [2020-12-01 15:55:49,992 INFO L226 Difference]: Without dead ends: 50234 [2020-12-01 15:55:50,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=275, Unknown=0, NotChecked=0, Total=420 [2020-12-01 15:55:50,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50234 states. [2020-12-01 15:55:50,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50234 to 26425. [2020-12-01 15:55:50,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26425 states. [2020-12-01 15:55:50,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26425 states to 26425 states and 29154 transitions. [2020-12-01 15:55:50,434 INFO L78 Accepts]: Start accepts. Automaton has 26425 states and 29154 transitions. Word has length 581 [2020-12-01 15:55:50,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:55:50,434 INFO L481 AbstractCegarLoop]: Abstraction has 26425 states and 29154 transitions. [2020-12-01 15:55:50,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-01 15:55:50,435 INFO L276 IsEmpty]: Start isEmpty. Operand 26425 states and 29154 transitions. [2020-12-01 15:55:50,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2020-12-01 15:55:50,449 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:55:50,450 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 15:55:50,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-12-01 15:55:50,651 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:55:50,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:50,651 INFO L82 PathProgramCache]: Analyzing trace with hash 2117319173, now seen corresponding path program 1 times [2020-12-01 15:55:50,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:50,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761383855] [2020-12-01 15:55:50,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:51,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 896 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2020-12-01 15:55:51,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761383855] [2020-12-01 15:55:51,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:55:51,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:55:51,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528702107] [2020-12-01 15:55:51,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:55:51,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:55:51,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:55:51,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:55:51,195 INFO L87 Difference]: Start difference. First operand 26425 states and 29154 transitions. Second operand 4 states. [2020-12-01 15:55:53,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:55:53,780 INFO L93 Difference]: Finished difference Result 65039 states and 71603 transitions. [2020-12-01 15:55:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:55:53,781 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 584 [2020-12-01 15:55:53,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:55:53,820 INFO L225 Difference]: With dead ends: 65039 [2020-12-01 15:55:53,820 INFO L226 Difference]: Without dead ends: 38062 [2020-12-01 15:55:53,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:55:53,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38062 states. [2020-12-01 15:55:54,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38062 to 29925. [2020-12-01 15:55:54,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29925 states. [2020-12-01 15:55:54,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29925 states to 29925 states and 32873 transitions. [2020-12-01 15:55:54,270 INFO L78 Accepts]: Start accepts. Automaton has 29925 states and 32873 transitions. Word has length 584 [2020-12-01 15:55:54,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:55:54,271 INFO L481 AbstractCegarLoop]: Abstraction has 29925 states and 32873 transitions. [2020-12-01 15:55:54,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:55:54,271 INFO L276 IsEmpty]: Start isEmpty. Operand 29925 states and 32873 transitions. [2020-12-01 15:55:54,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2020-12-01 15:55:54,290 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:55:54,290 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:55:54,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-01 15:55:54,291 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:55:54,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:54,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1304322429, now seen corresponding path program 1 times [2020-12-01 15:55:54,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:54,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781650902] [2020-12-01 15:55:54,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:55,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 895 proven. 150 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2020-12-01 15:55:55,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781650902] [2020-12-01 15:55:55,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559291458] [2020-12-01 15:55:55,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:55:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:56,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:55:56,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:55:56,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 953 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2020-12-01 15:55:56,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:55:56,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2020-12-01 15:55:56,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588219552] [2020-12-01 15:55:56,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:55:56,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:55:56,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:55:56,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:55:56,971 INFO L87 Difference]: Start difference. First operand 29925 states and 32873 transitions. Second operand 3 states. [2020-12-01 15:55:58,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:55:58,383 INFO L93 Difference]: Finished difference Result 58384 states and 64204 transitions. [2020-12-01 15:55:58,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:55:58,384 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 610 [2020-12-01 15:55:58,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:55:58,411 INFO L225 Difference]: With dead ends: 58384 [2020-12-01 15:55:58,411 INFO L226 Difference]: Without dead ends: 29933 [2020-12-01 15:55:58,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 610 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:55:58,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29933 states. [2020-12-01 15:55:58,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29933 to 28447. [2020-12-01 15:55:58,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28447 states. [2020-12-01 15:55:58,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28447 states to 28447 states and 31052 transitions. [2020-12-01 15:55:58,766 INFO L78 Accepts]: Start accepts. Automaton has 28447 states and 31052 transitions. Word has length 610 [2020-12-01 15:55:58,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:55:58,767 INFO L481 AbstractCegarLoop]: Abstraction has 28447 states and 31052 transitions. [2020-12-01 15:55:58,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:55:58,767 INFO L276 IsEmpty]: Start isEmpty. Operand 28447 states and 31052 transitions. [2020-12-01 15:55:58,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2020-12-01 15:55:58,785 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:55:58,786 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:55:58,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-12-01 15:55:58,986 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:55:58,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:58,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1189367545, now seen corresponding path program 1 times [2020-12-01 15:55:58,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:58,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842718063] [2020-12-01 15:55:58,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:59,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 844 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2020-12-01 15:55:59,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842718063] [2020-12-01 15:55:59,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:55:59,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:55:59,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770035506] [2020-12-01 15:55:59,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:55:59,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:55:59,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:55:59,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:55:59,694 INFO L87 Difference]: Start difference. First operand 28447 states and 31052 transitions. Second operand 3 states. [2020-12-01 15:56:01,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:56:01,439 INFO L93 Difference]: Finished difference Result 61320 states and 66934 transitions. [2020-12-01 15:56:01,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:56:01,440 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 626 [2020-12-01 15:56:01,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:56:01,473 INFO L225 Difference]: With dead ends: 61320 [2020-12-01 15:56:01,473 INFO L226 Difference]: Without dead ends: 33427 [2020-12-01 15:56:01,487 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:56:01,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33427 states. [2020-12-01 15:56:01,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33427 to 32488. [2020-12-01 15:56:01,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32488 states. [2020-12-01 15:56:01,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32488 states to 32488 states and 35203 transitions. [2020-12-01 15:56:01,922 INFO L78 Accepts]: Start accepts. Automaton has 32488 states and 35203 transitions. Word has length 626 [2020-12-01 15:56:01,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:56:01,923 INFO L481 AbstractCegarLoop]: Abstraction has 32488 states and 35203 transitions. [2020-12-01 15:56:01,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:56:01,923 INFO L276 IsEmpty]: Start isEmpty. Operand 32488 states and 35203 transitions. [2020-12-01 15:56:01,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2020-12-01 15:56:01,950 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:56:01,951 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 15:56:01,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-01 15:56:01,951 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:56:01,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:01,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1973690697, now seen corresponding path program 1 times [2020-12-01 15:56:01,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:56:01,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639983660] [2020-12-01 15:56:01,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:56:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:03,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1701 backedges. 926 proven. 236 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2020-12-01 15:56:03,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639983660] [2020-12-01 15:56:03,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334076231] [2020-12-01 15:56:03,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:56:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:03,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 929 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:56:03,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:56:05,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1701 backedges. 873 proven. 105 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked. [2020-12-01 15:56:05,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:56:05,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 7 [2020-12-01 15:56:05,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494416173] [2020-12-01 15:56:05,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 15:56:05,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:56:05,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:56:05,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:56:05,301 INFO L87 Difference]: Start difference. First operand 32488 states and 35203 transitions. Second operand 8 states. [2020-12-01 15:56:13,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:56:13,796 INFO L93 Difference]: Finished difference Result 78604 states and 85027 transitions. [2020-12-01 15:56:13,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-01 15:56:13,797 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 690 [2020-12-01 15:56:13,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:56:13,843 INFO L225 Difference]: With dead ends: 78604 [2020-12-01 15:56:13,843 INFO L226 Difference]: Without dead ends: 46670 [2020-12-01 15:56:13,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 689 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-12-01 15:56:13,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46670 states. [2020-12-01 15:56:14,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46670 to 38196. [2020-12-01 15:56:14,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38196 states. [2020-12-01 15:56:14,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38196 states to 38196 states and 41323 transitions. [2020-12-01 15:56:14,622 INFO L78 Accepts]: Start accepts. Automaton has 38196 states and 41323 transitions. Word has length 690 [2020-12-01 15:56:14,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:56:14,623 INFO L481 AbstractCegarLoop]: Abstraction has 38196 states and 41323 transitions. [2020-12-01 15:56:14,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 15:56:14,623 INFO L276 IsEmpty]: Start isEmpty. Operand 38196 states and 41323 transitions. [2020-12-01 15:56:14,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2020-12-01 15:56:14,651 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:56:14,652 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2020-12-01 15:56:14,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-12-01 15:56:14,854 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:56:14,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:14,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1339143212, now seen corresponding path program 1 times [2020-12-01 15:56:14,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:56:14,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81110412] [2020-12-01 15:56:14,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:56:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:15,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1736 backedges. 1274 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2020-12-01 15:56:15,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81110412] [2020-12-01 15:56:15,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:56:15,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:56:15,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438716152] [2020-12-01 15:56:15,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:56:15,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:56:15,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:56:15,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:56:15,511 INFO L87 Difference]: Start difference. First operand 38196 states and 41323 transitions. Second operand 3 states. [2020-12-01 15:56:17,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:56:17,096 INFO L93 Difference]: Finished difference Result 76010 states and 82286 transitions. [2020-12-01 15:56:17,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:56:17,097 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 712 [2020-12-01 15:56:17,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:56:17,150 INFO L225 Difference]: With dead ends: 76010 [2020-12-01 15:56:17,150 INFO L226 Difference]: Without dead ends: 38920 [2020-12-01 15:56:17,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:56:17,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38920 states. [2020-12-01 15:56:17,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38920 to 33759. [2020-12-01 15:56:17,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33759 states. [2020-12-01 15:56:17,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33759 states to 33759 states and 36331 transitions. [2020-12-01 15:56:17,660 INFO L78 Accepts]: Start accepts. Automaton has 33759 states and 36331 transitions. Word has length 712 [2020-12-01 15:56:17,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:56:17,661 INFO L481 AbstractCegarLoop]: Abstraction has 33759 states and 36331 transitions. [2020-12-01 15:56:17,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:56:17,661 INFO L276 IsEmpty]: Start isEmpty. Operand 33759 states and 36331 transitions. [2020-12-01 15:56:17,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2020-12-01 15:56:17,690 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:56:17,691 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:56:17,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-01 15:56:17,691 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:56:17,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:17,691 INFO L82 PathProgramCache]: Analyzing trace with hash -945260305, now seen corresponding path program 1 times [2020-12-01 15:56:17,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:56:17,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810740828] [2020-12-01 15:56:17,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:56:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:19,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1893 backedges. 1274 proven. 64 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2020-12-01 15:56:19,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810740828] [2020-12-01 15:56:19,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400346509] [2020-12-01 15:56:19,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:56:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:19,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:56:19,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:56:21,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1893 backedges. 1111 proven. 0 refuted. 0 times theorem prover too weak. 782 trivial. 0 not checked. [2020-12-01 15:56:21,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:56:21,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-12-01 15:56:21,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811604690] [2020-12-01 15:56:21,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:56:21,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:56:21,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:56:21,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:56:21,327 INFO L87 Difference]: Start difference. First operand 33759 states and 36331 transitions. Second operand 3 states. [2020-12-01 15:56:22,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:56:22,800 INFO L93 Difference]: Finished difference Result 68446 states and 73663 transitions. [2020-12-01 15:56:22,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:56:22,801 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 759 [2020-12-01 15:56:22,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:56:22,835 INFO L225 Difference]: With dead ends: 68446 [2020-12-01 15:56:22,835 INFO L226 Difference]: Without dead ends: 36713 [2020-12-01 15:56:22,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 762 GetRequests, 758 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:56:22,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36713 states. [2020-12-01 15:56:23,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36713 to 34127. [2020-12-01 15:56:23,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34127 states. [2020-12-01 15:56:23,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34127 states to 34127 states and 36739 transitions. [2020-12-01 15:56:23,320 INFO L78 Accepts]: Start accepts. Automaton has 34127 states and 36739 transitions. Word has length 759 [2020-12-01 15:56:23,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:56:23,320 INFO L481 AbstractCegarLoop]: Abstraction has 34127 states and 36739 transitions. [2020-12-01 15:56:23,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:56:23,320 INFO L276 IsEmpty]: Start isEmpty. Operand 34127 states and 36739 transitions. [2020-12-01 15:56:23,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2020-12-01 15:56:23,350 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:56:23,350 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:56:23,566 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:56:23,567 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:56:23,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:23,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1780292514, now seen corresponding path program 1 times [2020-12-01 15:56:23,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:56:23,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839081925] [2020-12-01 15:56:23,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:56:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:24,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 1273 proven. 64 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2020-12-01 15:56:24,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839081925] [2020-12-01 15:56:24,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039409963] [2020-12-01 15:56:24,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:56:25,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:25,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:56:25,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:56:26,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 1337 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2020-12-01 15:56:26,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:56:26,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-12-01 15:56:26,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522302434] [2020-12-01 15:56:26,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:56:26,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:56:26,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:56:26,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:56:26,322 INFO L87 Difference]: Start difference. First operand 34127 states and 36739 transitions. Second operand 3 states. [2020-12-01 15:56:27,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:56:27,882 INFO L93 Difference]: Finished difference Result 68260 states and 73447 transitions. [2020-12-01 15:56:27,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:56:27,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 760 [2020-12-01 15:56:27,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:56:27,921 INFO L225 Difference]: With dead ends: 68260 [2020-12-01 15:56:27,921 INFO L226 Difference]: Without dead ends: 36159 [2020-12-01 15:56:27,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 763 GetRequests, 759 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:56:27,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36159 states. [2020-12-01 15:56:28,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36159 to 33203. [2020-12-01 15:56:28,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33203 states. [2020-12-01 15:56:28,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33203 states to 33203 states and 35680 transitions. [2020-12-01 15:56:28,412 INFO L78 Accepts]: Start accepts. Automaton has 33203 states and 35680 transitions. Word has length 760 [2020-12-01 15:56:28,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:56:28,412 INFO L481 AbstractCegarLoop]: Abstraction has 33203 states and 35680 transitions. [2020-12-01 15:56:28,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:56:28,413 INFO L276 IsEmpty]: Start isEmpty. Operand 33203 states and 35680 transitions. [2020-12-01 15:56:28,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2020-12-01 15:56:28,443 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:56:28,444 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:56:28,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-12-01 15:56:28,649 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:56:28,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:28,649 INFO L82 PathProgramCache]: Analyzing trace with hash 195804253, now seen corresponding path program 1 times [2020-12-01 15:56:28,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:56:28,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572498352] [2020-12-01 15:56:28,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:56:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:29,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2134 backedges. 1427 proven. 0 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2020-12-01 15:56:29,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572498352] [2020-12-01 15:56:29,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:56:29,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:56:29,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451696418] [2020-12-01 15:56:29,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:56:29,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:56:29,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:56:29,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:56:29,421 INFO L87 Difference]: Start difference. First operand 33203 states and 35680 transitions. Second operand 3 states. [2020-12-01 15:56:31,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:56:31,052 INFO L93 Difference]: Finished difference Result 64935 states and 69753 transitions. [2020-12-01 15:56:31,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:56:31,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 785 [2020-12-01 15:56:31,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:56:31,086 INFO L225 Difference]: With dead ends: 64935 [2020-12-01 15:56:31,086 INFO L226 Difference]: Without dead ends: 33758 [2020-12-01 15:56:31,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:56:31,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33758 states. [2020-12-01 15:56:31,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33758 to 30071. [2020-12-01 15:56:31,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30071 states. [2020-12-01 15:56:31,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30071 states to 30071 states and 32277 transitions. [2020-12-01 15:56:31,534 INFO L78 Accepts]: Start accepts. Automaton has 30071 states and 32277 transitions. Word has length 785 [2020-12-01 15:56:31,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:56:31,535 INFO L481 AbstractCegarLoop]: Abstraction has 30071 states and 32277 transitions. [2020-12-01 15:56:31,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:56:31,535 INFO L276 IsEmpty]: Start isEmpty. Operand 30071 states and 32277 transitions. [2020-12-01 15:56:31,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2020-12-01 15:56:31,555 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:56:31,555 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:56:31,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-01 15:56:31,555 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:56:31,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:31,556 INFO L82 PathProgramCache]: Analyzing trace with hash -869548994, now seen corresponding path program 1 times [2020-12-01 15:56:31,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:56:31,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274736958] [2020-12-01 15:56:31,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:56:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:32,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1774 backedges. 1298 proven. 0 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2020-12-01 15:56:32,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274736958] [2020-12-01 15:56:32,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:56:32,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:56:32,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337766493] [2020-12-01 15:56:32,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:56:32,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:56:32,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:56:32,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:56:32,461 INFO L87 Difference]: Start difference. First operand 30071 states and 32277 transitions. Second operand 3 states. [2020-12-01 15:56:33,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:56:33,981 INFO L93 Difference]: Finished difference Result 61069 states and 65598 transitions. [2020-12-01 15:56:33,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:56:33,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 790 [2020-12-01 15:56:33,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:56:34,009 INFO L225 Difference]: With dead ends: 61069 [2020-12-01 15:56:34,009 INFO L226 Difference]: Without dead ends: 31368 [2020-12-01 15:56:34,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:56:34,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31368 states. [2020-12-01 15:56:34,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31368 to 21417. [2020-12-01 15:56:34,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21417 states. [2020-12-01 15:56:34,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21417 states to 21417 states and 22900 transitions. [2020-12-01 15:56:34,323 INFO L78 Accepts]: Start accepts. Automaton has 21417 states and 22900 transitions. Word has length 790 [2020-12-01 15:56:34,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:56:34,323 INFO L481 AbstractCegarLoop]: Abstraction has 21417 states and 22900 transitions. [2020-12-01 15:56:34,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:56:34,323 INFO L276 IsEmpty]: Start isEmpty. Operand 21417 states and 22900 transitions. [2020-12-01 15:56:34,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 854 [2020-12-01 15:56:34,340 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:56:34,341 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:56:34,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-01 15:56:34,341 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:56:34,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:34,342 INFO L82 PathProgramCache]: Analyzing trace with hash -2133250280, now seen corresponding path program 1 times [2020-12-01 15:56:34,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:56:34,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296975713] [2020-12-01 15:56:34,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:56:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:35,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2393 backedges. 1868 proven. 0 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2020-12-01 15:56:35,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296975713] [2020-12-01 15:56:35,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:56:35,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:56:35,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182836043] [2020-12-01 15:56:35,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:56:35,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:56:35,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:56:35,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:56:35,540 INFO L87 Difference]: Start difference. First operand 21417 states and 22900 transitions. Second operand 4 states. [2020-12-01 15:56:38,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:56:38,171 INFO L93 Difference]: Finished difference Result 51138 states and 54594 transitions. [2020-12-01 15:56:38,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:56:38,173 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 853 [2020-12-01 15:56:38,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:56:38,200 INFO L225 Difference]: With dead ends: 51138 [2020-12-01 15:56:38,200 INFO L226 Difference]: Without dead ends: 29539 [2020-12-01 15:56:38,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:56:38,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29539 states. [2020-12-01 15:56:38,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29539 to 23643. [2020-12-01 15:56:38,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23643 states. [2020-12-01 15:56:38,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23643 states to 23643 states and 25218 transitions. [2020-12-01 15:56:38,553 INFO L78 Accepts]: Start accepts. Automaton has 23643 states and 25218 transitions. Word has length 853 [2020-12-01 15:56:38,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:56:38,554 INFO L481 AbstractCegarLoop]: Abstraction has 23643 states and 25218 transitions. [2020-12-01 15:56:38,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:56:38,554 INFO L276 IsEmpty]: Start isEmpty. Operand 23643 states and 25218 transitions. [2020-12-01 15:56:38,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 876 [2020-12-01 15:56:38,571 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:56:38,572 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-12-01 15:56:38,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-01 15:56:38,572 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:56:38,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:38,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1579312298, now seen corresponding path program 1 times [2020-12-01 15:56:38,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:56:38,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958846716] [2020-12-01 15:56:38,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:56:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:39,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2077 backedges. 1329 proven. 204 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-12-01 15:56:39,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958846716] [2020-12-01 15:56:39,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352512552] [2020-12-01 15:56:39,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:56:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:40,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:56:40,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:56:41,270 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:56:42,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2077 backedges. 1381 proven. 250 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2020-12-01 15:56:42,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:56:42,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 7 [2020-12-01 15:56:42,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179370889] [2020-12-01 15:56:42,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:56:42,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:56:42,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:56:42,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:56:42,120 INFO L87 Difference]: Start difference. First operand 23643 states and 25218 transitions. Second operand 7 states. [2020-12-01 15:56:47,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:56:47,474 INFO L93 Difference]: Finished difference Result 34519 states and 36666 transitions. [2020-12-01 15:56:47,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:56:47,476 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 875 [2020-12-01 15:56:47,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:56:47,510 INFO L225 Difference]: With dead ends: 34519 [2020-12-01 15:56:47,510 INFO L226 Difference]: Without dead ends: 34517 [2020-12-01 15:56:47,517 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 879 GetRequests, 873 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:56:47,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34517 states. [2020-12-01 15:56:47,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34517 to 20681. [2020-12-01 15:56:47,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20681 states. [2020-12-01 15:56:48,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20681 states to 20681 states and 22045 transitions. [2020-12-01 15:56:48,032 INFO L78 Accepts]: Start accepts. Automaton has 20681 states and 22045 transitions. Word has length 875 [2020-12-01 15:56:48,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:56:48,033 INFO L481 AbstractCegarLoop]: Abstraction has 20681 states and 22045 transitions. [2020-12-01 15:56:48,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:56:48,033 INFO L276 IsEmpty]: Start isEmpty. Operand 20681 states and 22045 transitions. [2020-12-01 15:56:48,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 916 [2020-12-01 15:56:48,058 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:56:48,058 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:56:48,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:56:48,259 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:56:48,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:48,260 INFO L82 PathProgramCache]: Analyzing trace with hash -716569655, now seen corresponding path program 1 times [2020-12-01 15:56:48,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:56:48,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452015299] [2020-12-01 15:56:48,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:56:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:49,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2928 backedges. 2199 proven. 0 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2020-12-01 15:56:49,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452015299] [2020-12-01 15:56:49,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:56:49,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:56:49,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945009143] [2020-12-01 15:56:49,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:56:49,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:56:49,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:56:49,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:56:49,644 INFO L87 Difference]: Start difference. First operand 20681 states and 22045 transitions. Second operand 4 states. [2020-12-01 15:56:52,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:56:52,123 INFO L93 Difference]: Finished difference Result 45227 states and 48183 transitions. [2020-12-01 15:56:52,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:56:52,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 915 [2020-12-01 15:56:52,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:56:52,146 INFO L225 Difference]: With dead ends: 45227 [2020-12-01 15:56:52,146 INFO L226 Difference]: Without dead ends: 24180 [2020-12-01 15:56:52,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:56:52,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24180 states. [2020-12-01 15:56:52,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24180 to 20129. [2020-12-01 15:56:52,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20129 states. [2020-12-01 15:56:52,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20129 states to 20129 states and 21473 transitions. [2020-12-01 15:56:52,463 INFO L78 Accepts]: Start accepts. Automaton has 20129 states and 21473 transitions. Word has length 915 [2020-12-01 15:56:52,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:56:52,464 INFO L481 AbstractCegarLoop]: Abstraction has 20129 states and 21473 transitions. [2020-12-01 15:56:52,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:56:52,464 INFO L276 IsEmpty]: Start isEmpty. Operand 20129 states and 21473 transitions. [2020-12-01 15:56:52,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1354 [2020-12-01 15:56:52,489 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:56:52,490 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:56:52,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-01 15:56:52,490 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:56:52,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:52,491 INFO L82 PathProgramCache]: Analyzing trace with hash 19003636, now seen corresponding path program 1 times [2020-12-01 15:56:52,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:56:52,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929612300] [2020-12-01 15:56:52,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:56:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:56,239 INFO L134 CoverageAnalysis]: Checked inductivity of 5832 backedges. 3504 proven. 206 refuted. 0 times theorem prover too weak. 2122 trivial. 0 not checked. [2020-12-01 15:56:56,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929612300] [2020-12-01 15:56:56,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35217804] [2020-12-01 15:56:56,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:56:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:56,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 1735 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-01 15:56:56,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:56:58,406 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:56:58,407 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-01 15:56:58,417 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-01 15:57:02,876 INFO L134 CoverageAnalysis]: Checked inductivity of 5832 backedges. 3879 proven. 282 refuted. 0 times theorem prover too weak. 1671 trivial. 0 not checked. [2020-12-01 15:57:02,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:57:02,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 9 [2020-12-01 15:57:02,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513389661] [2020-12-01 15:57:02,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-01 15:57:02,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:57:02,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-01 15:57:02,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:57:02,880 INFO L87 Difference]: Start difference. First operand 20129 states and 21473 transitions. Second operand 10 states. [2020-12-01 15:57:10,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:57:10,431 INFO L93 Difference]: Finished difference Result 40374 states and 43040 transitions. [2020-12-01 15:57:10,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-01 15:57:10,433 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1353 [2020-12-01 15:57:10,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:57:10,449 INFO L225 Difference]: With dead ends: 40374 [2020-12-01 15:57:10,449 INFO L226 Difference]: Without dead ends: 19879 [2020-12-01 15:57:10,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1369 GetRequests, 1348 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2020-12-01 15:57:10,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19879 states. [2020-12-01 15:57:10,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19879 to 16805. [2020-12-01 15:57:10,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16805 states. [2020-12-01 15:57:10,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16805 states to 16805 states and 17847 transitions. [2020-12-01 15:57:10,728 INFO L78 Accepts]: Start accepts. Automaton has 16805 states and 17847 transitions. Word has length 1353 [2020-12-01 15:57:10,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:57:10,729 INFO L481 AbstractCegarLoop]: Abstraction has 16805 states and 17847 transitions. [2020-12-01 15:57:10,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-01 15:57:10,729 INFO L276 IsEmpty]: Start isEmpty. Operand 16805 states and 17847 transitions. [2020-12-01 15:57:10,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1467 [2020-12-01 15:57:10,755 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:57:10,756 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-12-01 15:57:10,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2020-12-01 15:57:10,957 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:57:10,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:10,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1382776590, now seen corresponding path program 1 times [2020-12-01 15:57:10,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:57:10,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430578190] [2020-12-01 15:57:10,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:57:11,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:57:15,574 INFO L134 CoverageAnalysis]: Checked inductivity of 6977 backedges. 4614 proven. 241 refuted. 0 times theorem prover too weak. 2122 trivial. 0 not checked. [2020-12-01 15:57:15,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430578190] [2020-12-01 15:57:15,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068354006] [2020-12-01 15:57:15,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:57:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:57:15,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 1872 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:57:15,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:57:19,386 INFO L134 CoverageAnalysis]: Checked inductivity of 6977 backedges. 4363 proven. 0 refuted. 0 times theorem prover too weak. 2614 trivial. 0 not checked. [2020-12-01 15:57:19,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:57:19,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2020-12-01 15:57:19,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98082048] [2020-12-01 15:57:19,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:57:19,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:57:19,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:57:19,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:57:19,388 INFO L87 Difference]: Start difference. First operand 16805 states and 17847 transitions. Second operand 4 states. [2020-12-01 15:57:21,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:57:21,130 INFO L93 Difference]: Finished difference Result 24376 states and 25787 transitions. [2020-12-01 15:57:21,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:57:21,131 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1466 [2020-12-01 15:57:21,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:57:21,132 INFO L225 Difference]: With dead ends: 24376 [2020-12-01 15:57:21,132 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:57:21,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1471 GetRequests, 1464 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:57:21,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:57:21,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:57:21,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:57:21,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:57:21,139 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1466 [2020-12-01 15:57:21,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:57:21,139 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:57:21,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:57:21,139 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:57:21,139 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:57:21,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2020-12-01 15:57:21,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:57:31,330 WARN L197 SmtUtils]: Spent 9.97 s on a formula simplification. DAG size of input: 1862 DAG size of output: 1505 [2020-12-01 15:57:40,002 WARN L197 SmtUtils]: Spent 8.66 s on a formula simplification. DAG size of input: 1859 DAG size of output: 1505 [2020-12-01 15:58:02,891 WARN L197 SmtUtils]: Spent 22.87 s on a formula simplification. DAG size of input: 1413 DAG size of output: 192 [2020-12-01 15:58:25,833 WARN L197 SmtUtils]: Spent 22.93 s on a formula simplification. DAG size of input: 1413 DAG size of output: 192 [2020-12-01 15:58:25,837 INFO L262 CegarLoopResult]: For program point L498(lines 498 509) no Hoare annotation was computed. [2020-12-01 15:58:25,838 INFO L262 CegarLoopResult]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,838 INFO L262 CegarLoopResult]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2020-12-01 15:58:25,838 INFO L262 CegarLoopResult]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,838 INFO L262 CegarLoopResult]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,838 INFO L262 CegarLoopResult]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,838 INFO L262 CegarLoopResult]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,838 INFO L262 CegarLoopResult]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,838 INFO L262 CegarLoopResult]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,839 INFO L262 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-12-01 15:58:25,839 INFO L262 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-12-01 15:58:25,839 INFO L262 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-12-01 15:58:25,839 INFO L262 CegarLoopResult]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,839 INFO L262 CegarLoopResult]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,839 INFO L262 CegarLoopResult]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,840 INFO L262 CegarLoopResult]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,840 INFO L262 CegarLoopResult]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,840 INFO L262 CegarLoopResult]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,840 INFO L262 CegarLoopResult]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,840 INFO L262 CegarLoopResult]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,840 INFO L262 CegarLoopResult]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,841 INFO L262 CegarLoopResult]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,841 INFO L262 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-12-01 15:58:25,841 INFO L262 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-12-01 15:58:25,841 INFO L262 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-12-01 15:58:25,841 INFO L262 CegarLoopResult]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,841 INFO L262 CegarLoopResult]: For program point L768(lines 768 778) no Hoare annotation was computed. [2020-12-01 15:58:25,841 INFO L262 CegarLoopResult]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2020-12-01 15:58:25,842 INFO L262 CegarLoopResult]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,842 INFO L262 CegarLoopResult]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,842 INFO L262 CegarLoopResult]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,842 INFO L262 CegarLoopResult]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,842 INFO L262 CegarLoopResult]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,842 INFO L262 CegarLoopResult]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,843 INFO L262 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-12-01 15:58:25,843 INFO L262 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-12-01 15:58:25,843 INFO L262 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-12-01 15:58:25,843 INFO L262 CegarLoopResult]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,843 INFO L262 CegarLoopResult]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,843 INFO L262 CegarLoopResult]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,844 INFO L258 CegarLoopResult]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse27 (<= ~a29~0 140)) (.cse0 (<= (+ ~a23~0 43) 0))) (let ((.cse35 (or (< 245 ~a29~0) .cse27 .cse0 (< 138 ~a23~0))) (.cse9 (= ~a3~0 1)) (.cse32 (<= ~a25~0 10)) (.cse2 (<= 312 ~a23~0)) (.cse5 (<= 130 ~a29~0)) (.cse6 (= ~a8~0 15)) (.cse7 (= ~a4~0 1)) (.cse24 (<= ~a29~0 274))) (let ((.cse22 (<= ~a25~0 9)) (.cse14 (<= 10 ~a25~0)) (.cse15 (or (and .cse32 .cse5 .cse6 (<= ~a29~0 220) .cse35 .cse7) (and (or (and .cse32 .cse5 .cse6 .cse7 .cse9) (and .cse32 .cse2 .cse5 .cse6 .cse7)) .cse24))) (.cse12 (<= 142 ~a29~0)) (.cse11 (= ~a25~0 12)) (.cse20 (<= ~a29~0 130))) (let ((.cse10 (< 306 ~a23~0)) (.cse21 (<= ~a23~0 262)) (.cse30 (<= ~a29~0 275)) (.cse19 (= ~a25~0 13)) (.cse1 (or (and .cse20 .cse11 .cse7) (and .cse32 .cse20 .cse7))) (.cse18 (<= ~a29~0 245)) (.cse28 (not .cse7)) (.cse26 (<= 0 (+ ~a23~0 599913))) (.cse31 (<= ~a4~0 0)) (.cse4 (< 140 ~a29~0)) (.cse34 (<= (+ ~a23~0 55) 0)) (.cse17 (or (and .cse2 .cse22 .cse6 .cse24 .cse12 .cse7) (and .cse14 .cse15 .cse12))) (.cse16 (<= 307 ~a23~0)) (.cse8 (<= ~a23~0 599997)) (.cse3 (= ~a25~0 11)) (.cse13 (<= ~a23~0 600000)) (.cse29 (<= 247 ~a29~0)) (.cse25 (< 0 (+ ~a23~0 599778))) (.cse33 (<= 0 (+ ~a23~0 599772))) (.cse23 (<= ~a23~0 312))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and (or (and .cse10 .cse6 .cse11 .cse7 .cse9) (and .cse2 .cse3 .cse5 .cse6 .cse7 .cse9)) .cse12 .cse13) (and (or (and .cse4 .cse14 .cse15 .cse16 .cse9) (and .cse17 .cse9)) .cse18) (and .cse19 .cse20 .cse6 .cse21 .cse7 .cse9) (and (= ~a25~0 9) .cse22 (or (<= ~a23~0 306) (not (= 5 ULTIMATE.start_calculate_output_~input))) .cse23 .cse6 .cse24 .cse25 .cse7 .cse9) (and .cse3 .cse10 .cse5 .cse6 .cse12 .cse7 .cse8 .cse9) (and .cse26 .cse22 .cse27 .cse6 .cse0 .cse9) (and .cse6 .cse24 .cse28 .cse11 .cse0 .cse9 .cse29) (and .cse30 .cse31 .cse6 .cse11 .cse9 .cse29) (and .cse19 .cse6 .cse21 .cse7 (<= 261 ~a29~0) .cse9) (and .cse6 (< 251148 ~a23~0) .cse12 .cse13 .cse18 .cse7 .cse9) (and .cse32 .cse27 .cse14 .cse6 .cse7 .cse9 .cse8) (and .cse30 .cse3 .cse5 .cse6 .cse13 .cse7 .cse9 .cse29) (and .cse32 .cse0 .cse7) (and .cse19 .cse6 .cse0 .cse7 .cse9) (and (<= 10250 ~a29~0) .cse22 .cse6 .cse0 .cse9) (and .cse3 .cse6 (<= 99915 ~a29~0) .cse13 .cse7 .cse9) (and .cse22 .cse1) (and .cse31 .cse33 (not (= 6 ULTIMATE.start_calculate_output_~input)) .cse6 .cse11 (not (= 3 ULTIMATE.start_calculate_output_~input)) .cse18 .cse9 .cse34) (and .cse6 (or (and .cse3 .cse27 .cse28 .cse0) (and .cse31 (= ~a25~0 10) (<= 0 (+ (div (+ (* ~a29~0 (- 1)) (- 28690)) 5) 49)) .cse34)) .cse9) (and .cse26 .cse31 .cse4 .cse6 .cse24 .cse11 .cse9 .cse34) (and (or (and .cse22 .cse23 .cse6 .cse24 .cse25 .cse12 .cse7) (and .cse17 .cse8)) .cse9) (and .cse16 .cse6 (<= 13 ~a25~0) .cse7 .cse8 .cse9) (and .cse3 .cse5 .cse6 .cse7 .cse9 .cse29 (<= (+ ~a23~0 119992) 0)) (and .cse32 .cse6 .cse13 .cse7 .cse9 .cse29) (and .cse22 .cse27 .cse23 .cse6 .cse24 .cse25 .cse7 .cse9) (and .cse33 .cse23 .cse6 .cse11 .cse7 .cse9 .cse35)))))) [2020-12-01 15:58:25,844 INFO L262 CegarLoopResult]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,844 INFO L262 CegarLoopResult]: For program point L705(lines 705 715) no Hoare annotation was computed. [2020-12-01 15:58:25,844 INFO L262 CegarLoopResult]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2020-12-01 15:58:25,845 INFO L262 CegarLoopResult]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,845 INFO L262 CegarLoopResult]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,845 INFO L262 CegarLoopResult]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,845 INFO L262 CegarLoopResult]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,845 INFO L262 CegarLoopResult]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,845 INFO L262 CegarLoopResult]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,845 INFO L262 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-12-01 15:58:25,846 INFO L262 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-12-01 15:58:25,846 INFO L262 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-12-01 15:58:25,846 INFO L265 CegarLoopResult]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2020-12-01 15:58:25,846 INFO L262 CegarLoopResult]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,846 INFO L262 CegarLoopResult]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,846 INFO L262 CegarLoopResult]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,847 INFO L262 CegarLoopResult]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,847 INFO L262 CegarLoopResult]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,847 INFO L262 CegarLoopResult]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,847 INFO L262 CegarLoopResult]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,847 INFO L262 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-12-01 15:58:25,847 INFO L262 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-12-01 15:58:25,847 INFO L262 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-12-01 15:58:25,848 INFO L262 CegarLoopResult]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,848 INFO L262 CegarLoopResult]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,848 INFO L262 CegarLoopResult]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,848 INFO L262 CegarLoopResult]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,848 INFO L262 CegarLoopResult]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,848 INFO L262 CegarLoopResult]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,848 INFO L262 CegarLoopResult]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,849 INFO L262 CegarLoopResult]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,849 INFO L262 CegarLoopResult]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,849 INFO L262 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-12-01 15:58:25,849 INFO L262 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-12-01 15:58:25,849 INFO L262 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-12-01 15:58:25,849 INFO L262 CegarLoopResult]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,850 INFO L258 CegarLoopResult]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse27 (<= ~a29~0 140)) (.cse0 (<= (+ ~a23~0 43) 0))) (let ((.cse35 (or (< 245 ~a29~0) .cse27 .cse0 (< 138 ~a23~0))) (.cse9 (= ~a3~0 1)) (.cse32 (<= ~a25~0 10)) (.cse2 (<= 312 ~a23~0)) (.cse5 (<= 130 ~a29~0)) (.cse6 (= ~a8~0 15)) (.cse7 (= ~a4~0 1)) (.cse24 (<= ~a29~0 274))) (let ((.cse22 (<= ~a25~0 9)) (.cse14 (<= 10 ~a25~0)) (.cse15 (or (and .cse32 .cse5 .cse6 (<= ~a29~0 220) .cse35 .cse7) (and (or (and .cse32 .cse5 .cse6 .cse7 .cse9) (and .cse32 .cse2 .cse5 .cse6 .cse7)) .cse24))) (.cse12 (<= 142 ~a29~0)) (.cse11 (= ~a25~0 12)) (.cse20 (<= ~a29~0 130))) (let ((.cse10 (< 306 ~a23~0)) (.cse21 (<= ~a23~0 262)) (.cse30 (<= ~a29~0 275)) (.cse19 (= ~a25~0 13)) (.cse1 (or (and .cse20 .cse11 .cse7) (and .cse32 .cse20 .cse7))) (.cse18 (<= ~a29~0 245)) (.cse28 (not .cse7)) (.cse26 (<= 0 (+ ~a23~0 599913))) (.cse31 (<= ~a4~0 0)) (.cse4 (< 140 ~a29~0)) (.cse34 (<= (+ ~a23~0 55) 0)) (.cse17 (or (and .cse2 .cse22 .cse6 .cse24 .cse12 .cse7) (and .cse14 .cse15 .cse12))) (.cse16 (<= 307 ~a23~0)) (.cse8 (<= ~a23~0 599997)) (.cse3 (= ~a25~0 11)) (.cse13 (<= ~a23~0 600000)) (.cse29 (<= 247 ~a29~0)) (.cse25 (< 0 (+ ~a23~0 599778))) (.cse33 (<= 0 (+ ~a23~0 599772))) (.cse23 (<= ~a23~0 312))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and (or (and .cse10 .cse6 .cse11 .cse7 .cse9) (and .cse2 .cse3 .cse5 .cse6 .cse7 .cse9)) .cse12 .cse13) (and (or (and .cse4 .cse14 .cse15 .cse16 .cse9) (and .cse17 .cse9)) .cse18) (and .cse19 .cse20 .cse6 .cse21 .cse7 .cse9) (and (= ~a25~0 9) .cse22 (or (<= ~a23~0 306) (not (= 5 ULTIMATE.start_calculate_output_~input))) .cse23 .cse6 .cse24 .cse25 .cse7 .cse9) (and .cse3 .cse10 .cse5 .cse6 .cse12 .cse7 .cse8 .cse9) (and .cse26 .cse22 .cse27 .cse6 .cse0 .cse9) (and .cse6 .cse24 .cse28 .cse11 .cse0 .cse9 .cse29) (and .cse30 .cse31 .cse6 .cse11 .cse9 .cse29) (and .cse19 .cse6 .cse21 .cse7 (<= 261 ~a29~0) .cse9) (and .cse6 (< 251148 ~a23~0) .cse12 .cse13 .cse18 .cse7 .cse9) (and .cse32 .cse27 .cse14 .cse6 .cse7 .cse9 .cse8) (and .cse30 .cse3 .cse5 .cse6 .cse13 .cse7 .cse9 .cse29) (and .cse32 .cse0 .cse7) (and .cse19 .cse6 .cse0 .cse7 .cse9) (and (<= 10250 ~a29~0) .cse22 .cse6 .cse0 .cse9) (and .cse3 .cse6 (<= 99915 ~a29~0) .cse13 .cse7 .cse9) (and .cse22 .cse1) (and .cse31 .cse33 (not (= 6 ULTIMATE.start_calculate_output_~input)) .cse6 .cse11 (not (= 3 ULTIMATE.start_calculate_output_~input)) .cse18 .cse9 .cse34) (and .cse6 (or (and .cse3 .cse27 .cse28 .cse0) (and .cse31 (= ~a25~0 10) (<= 0 (+ (div (+ (* ~a29~0 (- 1)) (- 28690)) 5) 49)) .cse34)) .cse9) (and .cse26 .cse31 .cse4 .cse6 .cse24 .cse11 .cse9 .cse34) (and (or (and .cse22 .cse23 .cse6 .cse24 .cse25 .cse12 .cse7) (and .cse17 .cse8)) .cse9) (and .cse16 .cse6 (<= 13 ~a25~0) .cse7 .cse8 .cse9) (and .cse3 .cse5 .cse6 .cse7 .cse9 .cse29 (<= (+ ~a23~0 119992) 0)) (and .cse32 .cse6 .cse13 .cse7 .cse9 .cse29) (and .cse22 .cse27 .cse23 .cse6 .cse24 .cse25 .cse7 .cse9) (and .cse33 .cse23 .cse6 .cse11 .cse7 .cse9 .cse35)))))) [2020-12-01 15:58:25,851 INFO L262 CegarLoopResult]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,851 INFO L262 CegarLoopResult]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,851 INFO L262 CegarLoopResult]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,851 INFO L262 CegarLoopResult]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,851 INFO L262 CegarLoopResult]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,851 INFO L262 CegarLoopResult]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,851 INFO L262 CegarLoopResult]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,852 INFO L262 CegarLoopResult]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,852 INFO L262 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-12-01 15:58:25,852 INFO L262 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-12-01 15:58:25,852 INFO L262 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-12-01 15:58:25,852 INFO L262 CegarLoopResult]: For program point L980(lines 980 990) no Hoare annotation was computed. [2020-12-01 15:58:25,852 INFO L262 CegarLoopResult]: For program point L914(lines 914 924) no Hoare annotation was computed. [2020-12-01 15:58:25,853 INFO L262 CegarLoopResult]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2020-12-01 15:58:25,853 INFO L262 CegarLoopResult]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2020-12-01 15:58:25,853 INFO L262 CegarLoopResult]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,853 INFO L262 CegarLoopResult]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,853 INFO L262 CegarLoopResult]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,853 INFO L262 CegarLoopResult]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,853 INFO L262 CegarLoopResult]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,854 INFO L262 CegarLoopResult]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,854 INFO L262 CegarLoopResult]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,854 INFO L262 CegarLoopResult]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,854 INFO L262 CegarLoopResult]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,854 INFO L262 CegarLoopResult]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,854 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:58:25,855 INFO L262 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-12-01 15:58:25,855 INFO L262 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-12-01 15:58:25,855 INFO L262 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-12-01 15:58:25,855 INFO L262 CegarLoopResult]: For program point L1049(line 1049) no Hoare annotation was computed. [2020-12-01 15:58:25,855 INFO L262 CegarLoopResult]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,855 INFO L262 CegarLoopResult]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,855 INFO L262 CegarLoopResult]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,856 INFO L262 CegarLoopResult]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,856 INFO L262 CegarLoopResult]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,856 INFO L262 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-12-01 15:58:25,856 INFO L262 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-12-01 15:58:25,856 INFO L262 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-12-01 15:58:25,856 INFO L262 CegarLoopResult]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,857 INFO L262 CegarLoopResult]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,857 INFO L262 CegarLoopResult]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,857 INFO L262 CegarLoopResult]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,857 INFO L262 CegarLoopResult]: For program point L525(lines 525 535) no Hoare annotation was computed. [2020-12-01 15:58:25,857 INFO L262 CegarLoopResult]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2020-12-01 15:58:25,857 INFO L262 CegarLoopResult]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,857 INFO L262 CegarLoopResult]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,858 INFO L262 CegarLoopResult]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,858 INFO L262 CegarLoopResult]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,858 INFO L262 CegarLoopResult]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,858 INFO L262 CegarLoopResult]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,858 INFO L262 CegarLoopResult]: For program point L658(lines 658 667) no Hoare annotation was computed. [2020-12-01 15:58:25,858 INFO L262 CegarLoopResult]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2020-12-01 15:58:25,858 INFO L262 CegarLoopResult]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,859 INFO L262 CegarLoopResult]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,859 INFO L262 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-12-01 15:58:25,859 INFO L262 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-12-01 15:58:25,859 INFO L262 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-12-01 15:58:25,859 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:58:25,859 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-01 15:58:25,860 INFO L262 CegarLoopResult]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,860 INFO L262 CegarLoopResult]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,860 INFO L262 CegarLoopResult]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,860 INFO L262 CegarLoopResult]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,860 INFO L262 CegarLoopResult]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,860 INFO L262 CegarLoopResult]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,860 INFO L262 CegarLoopResult]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,861 INFO L262 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-12-01 15:58:25,861 INFO L262 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-12-01 15:58:25,861 INFO L262 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-12-01 15:58:25,861 INFO L262 CegarLoopResult]: For program point L926(lines 926 936) no Hoare annotation was computed. [2020-12-01 15:58:25,861 INFO L262 CegarLoopResult]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2020-12-01 15:58:25,861 INFO L262 CegarLoopResult]: For program point L728(lines 728 740) no Hoare annotation was computed. [2020-12-01 15:58:25,862 INFO L262 CegarLoopResult]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2020-12-01 15:58:25,862 INFO L262 CegarLoopResult]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,862 INFO L262 CegarLoopResult]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,862 INFO L262 CegarLoopResult]: For program point L597(lines 597 607) no Hoare annotation was computed. [2020-12-01 15:58:25,862 INFO L262 CegarLoopResult]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2020-12-01 15:58:25,862 INFO L262 CegarLoopResult]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,862 INFO L262 CegarLoopResult]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,863 INFO L262 CegarLoopResult]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,863 INFO L262 CegarLoopResult]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,863 INFO L262 CegarLoopResult]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,863 INFO L262 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-12-01 15:58:25,863 INFO L262 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-12-01 15:58:25,863 INFO L262 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-12-01 15:58:25,863 INFO L262 CegarLoopResult]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,864 INFO L262 CegarLoopResult]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,864 INFO L262 CegarLoopResult]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,864 INFO L262 CegarLoopResult]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,864 INFO L262 CegarLoopResult]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,864 INFO L262 CegarLoopResult]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,864 INFO L262 CegarLoopResult]: For program point L205(line 205) no Hoare annotation was computed. [2020-12-01 15:58:25,865 INFO L262 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-12-01 15:58:25,865 INFO L262 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-12-01 15:58:25,865 INFO L262 CegarLoopResult]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,865 INFO L262 CegarLoopResult]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,865 INFO L262 CegarLoopResult]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,865 INFO L262 CegarLoopResult]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,865 INFO L262 CegarLoopResult]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,866 INFO L262 CegarLoopResult]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,866 INFO L262 CegarLoopResult]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,866 INFO L262 CegarLoopResult]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,866 INFO L262 CegarLoopResult]: For program point L208(line 208) no Hoare annotation was computed. [2020-12-01 15:58:25,866 INFO L262 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-12-01 15:58:25,866 INFO L262 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-12-01 15:58:25,866 INFO L262 CegarLoopResult]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,867 INFO L262 CegarLoopResult]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,867 INFO L262 CegarLoopResult]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,867 INFO L262 CegarLoopResult]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,867 INFO L262 CegarLoopResult]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,867 INFO L262 CegarLoopResult]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,867 INFO L262 CegarLoopResult]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,867 INFO L262 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-01 15:58:25,868 INFO L262 CegarLoopResult]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,868 INFO L262 CegarLoopResult]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,868 INFO L262 CegarLoopResult]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,868 INFO L262 CegarLoopResult]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,868 INFO L262 CegarLoopResult]: For program point L409(lines 409 420) no Hoare annotation was computed. [2020-12-01 15:58:25,868 INFO L262 CegarLoopResult]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2020-12-01 15:58:25,869 INFO L262 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-12-01 15:58:25,869 INFO L262 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-12-01 15:58:25,869 INFO L262 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-12-01 15:58:25,869 INFO L262 CegarLoopResult]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,869 INFO L262 CegarLoopResult]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,869 INFO L262 CegarLoopResult]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,869 INFO L262 CegarLoopResult]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,870 INFO L262 CegarLoopResult]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,870 INFO L262 CegarLoopResult]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,870 INFO L262 CegarLoopResult]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,870 INFO L262 CegarLoopResult]: For program point L214(line 214) no Hoare annotation was computed. [2020-12-01 15:58:25,870 INFO L262 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-12-01 15:58:25,870 INFO L262 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-12-01 15:58:25,870 INFO L262 CegarLoopResult]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,871 INFO L262 CegarLoopResult]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,871 INFO L262 CegarLoopResult]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,871 INFO L262 CegarLoopResult]: For program point L876(lines 876 885) no Hoare annotation was computed. [2020-12-01 15:58:25,871 INFO L262 CegarLoopResult]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2020-12-01 15:58:25,871 INFO L262 CegarLoopResult]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,871 INFO L262 CegarLoopResult]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,871 INFO L262 CegarLoopResult]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,872 INFO L262 CegarLoopResult]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,872 INFO L262 CegarLoopResult]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,872 INFO L262 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-12-01 15:58:25,872 INFO L262 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-12-01 15:58:25,872 INFO L262 CegarLoopResult]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,872 INFO L262 CegarLoopResult]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,872 INFO L262 CegarLoopResult]: For program point L614(lines 614 624) no Hoare annotation was computed. [2020-12-01 15:58:25,873 INFO L262 CegarLoopResult]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2020-12-01 15:58:25,873 INFO L262 CegarLoopResult]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,873 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:58:25,873 INFO L262 CegarLoopResult]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,873 INFO L262 CegarLoopResult]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,873 INFO L262 CegarLoopResult]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,873 INFO L262 CegarLoopResult]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,874 INFO L262 CegarLoopResult]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,874 INFO L262 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-12-01 15:58:25,874 INFO L262 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-12-01 15:58:25,874 INFO L262 CegarLoopResult]: For program point L815(lines 815 825) no Hoare annotation was computed. [2020-12-01 15:58:25,874 INFO L262 CegarLoopResult]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2020-12-01 15:58:25,874 INFO L262 CegarLoopResult]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,874 INFO L262 CegarLoopResult]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,875 INFO L262 CegarLoopResult]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,875 INFO L262 CegarLoopResult]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,875 INFO L262 CegarLoopResult]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,875 INFO L262 CegarLoopResult]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,875 INFO L262 CegarLoopResult]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,875 INFO L262 CegarLoopResult]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,875 INFO L262 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-12-01 15:58:25,876 INFO L262 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-12-01 15:58:25,876 INFO L262 CegarLoopResult]: For program point L950(lines 950 962) no Hoare annotation was computed. [2020-12-01 15:58:25,876 INFO L262 CegarLoopResult]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2020-12-01 15:58:25,876 INFO L262 CegarLoopResult]: For program point L488(lines 488 496) no Hoare annotation was computed. [2020-12-01 15:58:25,876 INFO L262 CegarLoopResult]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2020-12-01 15:58:25,876 INFO L262 CegarLoopResult]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,876 INFO L262 CegarLoopResult]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,877 INFO L262 CegarLoopResult]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,877 INFO L262 CegarLoopResult]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,877 INFO L262 CegarLoopResult]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,877 INFO L262 CegarLoopResult]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,877 INFO L262 CegarLoopResult]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,877 INFO L262 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-12-01 15:58:25,878 INFO L262 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-12-01 15:58:25,878 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:58:25,878 INFO L262 CegarLoopResult]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,878 INFO L262 CegarLoopResult]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,878 INFO L262 CegarLoopResult]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,878 INFO L262 CegarLoopResult]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,878 INFO L262 CegarLoopResult]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,879 INFO L262 CegarLoopResult]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,879 INFO L262 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-12-01 15:58:25,879 INFO L262 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-12-01 15:58:25,879 INFO L262 CegarLoopResult]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,879 INFO L262 CegarLoopResult]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,879 INFO L262 CegarLoopResult]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,879 INFO L262 CegarLoopResult]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,880 INFO L262 CegarLoopResult]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,880 INFO L262 CegarLoopResult]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,880 INFO L262 CegarLoopResult]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,880 INFO L262 CegarLoopResult]: For program point L33(lines 33 35) no Hoare annotation was computed. [2020-12-01 15:58:25,880 INFO L262 CegarLoopResult]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:58:25,880 INFO L262 CegarLoopResult]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,880 INFO L262 CegarLoopResult]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,881 INFO L262 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-12-01 15:58:25,881 INFO L262 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-12-01 15:58:25,881 INFO L262 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-12-01 15:58:25,881 INFO L262 CegarLoopResult]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2020-12-01 15:58:25,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:58:25 BoogieIcfgContainer [2020-12-01 15:58:25,964 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:58:25,964 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:58:25,965 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:58:25,965 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:58:25,965 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:54:17" (3/4) ... [2020-12-01 15:58:25,969 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:58:26,010 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-01 15:58:26,012 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:58:26,015 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:58:26,017 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:58:26,268 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c955dd0a-c720-45de-925e-addb6dbdae31/bin/uautomizer/witness.graphml [2020-12-01 15:58:26,268 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:58:26,269 INFO L168 Benchmark]: Toolchain (without parser) took 252585.89 ms. Allocated memory was 107.0 MB in the beginning and 4.3 GB in the end (delta: 4.2 GB). Free memory was 74.3 MB in the beginning and 1.6 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.6 GB. Max. memory is 16.1 GB. [2020-12-01 15:58:26,270 INFO L168 Benchmark]: CDTParser took 1.04 ms. Allocated memory is still 77.6 MB. Free memory was 35.8 MB in the beginning and 35.7 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:58:26,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 974.03 ms. Allocated memory is still 107.0 MB. Free memory was 74.0 MB in the beginning and 50.6 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:26,271 INFO L168 Benchmark]: Boogie Procedure Inliner took 261.05 ms. Allocated memory is still 107.0 MB. Free memory was 50.6 MB in the beginning and 74.2 MB in the end (delta: -23.6 MB). Peak memory consumption was 26.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:26,271 INFO L168 Benchmark]: Boogie Preprocessor took 126.69 ms. Allocated memory is still 107.0 MB. Free memory was 74.2 MB in the beginning and 63.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:26,272 INFO L168 Benchmark]: RCFGBuilder took 2221.34 ms. Allocated memory was 107.0 MB in the beginning and 151.0 MB in the end (delta: 44.0 MB). Free memory was 63.7 MB in the beginning and 90.5 MB in the end (delta: -26.8 MB). Peak memory consumption was 50.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:26,272 INFO L168 Benchmark]: TraceAbstraction took 248691.24 ms. Allocated memory was 151.0 MB in the beginning and 4.3 GB in the end (delta: 4.2 GB). Free memory was 90.5 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.7 GB. Max. memory is 16.1 GB. [2020-12-01 15:58:26,273 INFO L168 Benchmark]: Witness Printer took 303.89 ms. Allocated memory is still 4.3 GB. Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:26,276 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.04 ms. Allocated memory is still 77.6 MB. Free memory was 35.8 MB in the beginning and 35.7 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 974.03 ms. Allocated memory is still 107.0 MB. Free memory was 74.0 MB in the beginning and 50.6 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 261.05 ms. Allocated memory is still 107.0 MB. Free memory was 50.6 MB in the beginning and 74.2 MB in the end (delta: -23.6 MB). Peak memory consumption was 26.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 126.69 ms. Allocated memory is still 107.0 MB. Free memory was 74.2 MB in the beginning and 63.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2221.34 ms. Allocated memory was 107.0 MB in the beginning and 151.0 MB in the end (delta: 44.0 MB). Free memory was 63.7 MB in the beginning and 90.5 MB in the end (delta: -26.8 MB). Peak memory consumption was 50.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 248691.24 ms. Allocated memory was 151.0 MB in the beginning and 4.3 GB in the end (delta: 4.2 GB). Free memory was 90.5 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.7 GB. Max. memory is 16.1 GB. * Witness Printer took 303.89 ms. Allocated memory is still 4.3 GB. Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 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: 1038]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((a23 + 43 <= 0 && (((a29 <= 130 && a25 == 12) && a4 == 1) || ((a25 <= 10 && a29 <= 130) && a4 == 1))) || (((((((312 <= a23 && a25 == 11) && 140 < a29) && 130 <= a29) && a8 == 15) && a4 == 1) && a23 <= 599997) && a3 == 1)) || (((((((306 < a23 && a8 == 15) && a25 == 12) && a4 == 1) && a3 == 1) || (((((312 <= a23 && a25 == 11) && 130 <= a29) && a8 == 15) && a4 == 1) && a3 == 1)) && 142 <= a29) && a23 <= 600000)) || ((((((140 < a29 && 10 <= a25) && ((((((a25 <= 10 && 130 <= a29) && a8 == 15) && a29 <= 220) && (((245 < a29 || a29 <= 140) || a23 + 43 <= 0) || 138 < a23)) && a4 == 1) || ((((((a25 <= 10 && 130 <= a29) && a8 == 15) && a4 == 1) && a3 == 1) || ((((a25 <= 10 && 312 <= a23) && 130 <= a29) && a8 == 15) && a4 == 1)) && a29 <= 274))) && 307 <= a23) && a3 == 1) || (((((((312 <= a23 && a25 <= 9) && a8 == 15) && a29 <= 274) && 142 <= a29) && a4 == 1) || ((10 <= a25 && ((((((a25 <= 10 && 130 <= a29) && a8 == 15) && a29 <= 220) && (((245 < a29 || a29 <= 140) || a23 + 43 <= 0) || 138 < a23)) && a4 == 1) || ((((((a25 <= 10 && 130 <= a29) && a8 == 15) && a4 == 1) && a3 == 1) || ((((a25 <= 10 && 312 <= a23) && 130 <= a29) && a8 == 15) && a4 == 1)) && a29 <= 274))) && 142 <= a29)) && a3 == 1)) && a29 <= 245)) || (((((a25 == 13 && a29 <= 130) && a8 == 15) && a23 <= 262) && a4 == 1) && a3 == 1)) || ((((((((a25 == 9 && a25 <= 9) && (a23 <= 306 || !(5 == input))) && a23 <= 312) && a8 == 15) && a29 <= 274) && 0 < a23 + 599778) && a4 == 1) && a3 == 1)) || (((((((a25 == 11 && 306 < a23) && 130 <= a29) && a8 == 15) && 142 <= a29) && a4 == 1) && a23 <= 599997) && a3 == 1)) || (((((0 <= a23 + 599913 && a25 <= 9) && a29 <= 140) && a8 == 15) && a23 + 43 <= 0) && a3 == 1)) || ((((((a8 == 15 && a29 <= 274) && !(a4 == 1)) && a25 == 12) && a23 + 43 <= 0) && a3 == 1) && 247 <= a29)) || (((((a29 <= 275 && a4 <= 0) && a8 == 15) && a25 == 12) && a3 == 1) && 247 <= a29)) || (((((a25 == 13 && a8 == 15) && a23 <= 262) && a4 == 1) && 261 <= a29) && a3 == 1)) || ((((((a8 == 15 && 251148 < a23) && 142 <= a29) && a23 <= 600000) && a29 <= 245) && a4 == 1) && a3 == 1)) || ((((((a25 <= 10 && a29 <= 140) && 10 <= a25) && a8 == 15) && a4 == 1) && a3 == 1) && a23 <= 599997)) || (((((((a29 <= 275 && a25 == 11) && 130 <= a29) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1) && 247 <= a29)) || ((a25 <= 10 && a23 + 43 <= 0) && a4 == 1)) || ((((a25 == 13 && a8 == 15) && a23 + 43 <= 0) && a4 == 1) && a3 == 1)) || ((((10250 <= a29 && a25 <= 9) && a8 == 15) && a23 + 43 <= 0) && a3 == 1)) || (((((a25 == 11 && a8 == 15) && 99915 <= a29) && a23 <= 600000) && a4 == 1) && a3 == 1)) || (a25 <= 9 && (((a29 <= 130 && a25 == 12) && a4 == 1) || ((a25 <= 10 && a29 <= 130) && a4 == 1)))) || ((((((((a4 <= 0 && 0 <= a23 + 599772) && !(6 == input)) && a8 == 15) && a25 == 12) && !(3 == input)) && a29 <= 245) && a3 == 1) && a23 + 55 <= 0)) || ((a8 == 15 && ((((a25 == 11 && a29 <= 140) && !(a4 == 1)) && a23 + 43 <= 0) || (((a4 <= 0 && a25 == 10) && 0 <= (a29 * -1 + -28690) / 5 + 49) && a23 + 55 <= 0))) && a3 == 1)) || (((((((0 <= a23 + 599913 && a4 <= 0) && 140 < a29) && a8 == 15) && a29 <= 274) && a25 == 12) && a3 == 1) && a23 + 55 <= 0)) || ((((((((a25 <= 9 && a23 <= 312) && a8 == 15) && a29 <= 274) && 0 < a23 + 599778) && 142 <= a29) && a4 == 1) || (((((((312 <= a23 && a25 <= 9) && a8 == 15) && a29 <= 274) && 142 <= a29) && a4 == 1) || ((10 <= a25 && ((((((a25 <= 10 && 130 <= a29) && a8 == 15) && a29 <= 220) && (((245 < a29 || a29 <= 140) || a23 + 43 <= 0) || 138 < a23)) && a4 == 1) || ((((((a25 <= 10 && 130 <= a29) && a8 == 15) && a4 == 1) && a3 == 1) || ((((a25 <= 10 && 312 <= a23) && 130 <= a29) && a8 == 15) && a4 == 1)) && a29 <= 274))) && 142 <= a29)) && a23 <= 599997)) && a3 == 1)) || (((((307 <= a23 && a8 == 15) && 13 <= a25) && a4 == 1) && a23 <= 599997) && a3 == 1)) || ((((((a25 == 11 && 130 <= a29) && a8 == 15) && a4 == 1) && a3 == 1) && 247 <= a29) && a23 + 119992 <= 0)) || (((((a25 <= 10 && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1) && 247 <= a29)) || (((((((a25 <= 9 && a29 <= 140) && a23 <= 312) && a8 == 15) && a29 <= 274) && 0 < a23 + 599778) && a4 == 1) && a3 == 1)) || ((((((0 <= a23 + 599772 && a23 <= 312) && a8 == 15) && a25 == 12) && a4 == 1) && a3 == 1) && (((245 < a29 || a29 <= 140) || a23 + 43 <= 0) || 138 < a23)) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((a23 + 43 <= 0 && (((a29 <= 130 && a25 == 12) && a4 == 1) || ((a25 <= 10 && a29 <= 130) && a4 == 1))) || (((((((312 <= a23 && a25 == 11) && 140 < a29) && 130 <= a29) && a8 == 15) && a4 == 1) && a23 <= 599997) && a3 == 1)) || (((((((306 < a23 && a8 == 15) && a25 == 12) && a4 == 1) && a3 == 1) || (((((312 <= a23 && a25 == 11) && 130 <= a29) && a8 == 15) && a4 == 1) && a3 == 1)) && 142 <= a29) && a23 <= 600000)) || ((((((140 < a29 && 10 <= a25) && ((((((a25 <= 10 && 130 <= a29) && a8 == 15) && a29 <= 220) && (((245 < a29 || a29 <= 140) || a23 + 43 <= 0) || 138 < a23)) && a4 == 1) || ((((((a25 <= 10 && 130 <= a29) && a8 == 15) && a4 == 1) && a3 == 1) || ((((a25 <= 10 && 312 <= a23) && 130 <= a29) && a8 == 15) && a4 == 1)) && a29 <= 274))) && 307 <= a23) && a3 == 1) || (((((((312 <= a23 && a25 <= 9) && a8 == 15) && a29 <= 274) && 142 <= a29) && a4 == 1) || ((10 <= a25 && ((((((a25 <= 10 && 130 <= a29) && a8 == 15) && a29 <= 220) && (((245 < a29 || a29 <= 140) || a23 + 43 <= 0) || 138 < a23)) && a4 == 1) || ((((((a25 <= 10 && 130 <= a29) && a8 == 15) && a4 == 1) && a3 == 1) || ((((a25 <= 10 && 312 <= a23) && 130 <= a29) && a8 == 15) && a4 == 1)) && a29 <= 274))) && 142 <= a29)) && a3 == 1)) && a29 <= 245)) || (((((a25 == 13 && a29 <= 130) && a8 == 15) && a23 <= 262) && a4 == 1) && a3 == 1)) || ((((((((a25 == 9 && a25 <= 9) && (a23 <= 306 || !(5 == input))) && a23 <= 312) && a8 == 15) && a29 <= 274) && 0 < a23 + 599778) && a4 == 1) && a3 == 1)) || (((((((a25 == 11 && 306 < a23) && 130 <= a29) && a8 == 15) && 142 <= a29) && a4 == 1) && a23 <= 599997) && a3 == 1)) || (((((0 <= a23 + 599913 && a25 <= 9) && a29 <= 140) && a8 == 15) && a23 + 43 <= 0) && a3 == 1)) || ((((((a8 == 15 && a29 <= 274) && !(a4 == 1)) && a25 == 12) && a23 + 43 <= 0) && a3 == 1) && 247 <= a29)) || (((((a29 <= 275 && a4 <= 0) && a8 == 15) && a25 == 12) && a3 == 1) && 247 <= a29)) || (((((a25 == 13 && a8 == 15) && a23 <= 262) && a4 == 1) && 261 <= a29) && a3 == 1)) || ((((((a8 == 15 && 251148 < a23) && 142 <= a29) && a23 <= 600000) && a29 <= 245) && a4 == 1) && a3 == 1)) || ((((((a25 <= 10 && a29 <= 140) && 10 <= a25) && a8 == 15) && a4 == 1) && a3 == 1) && a23 <= 599997)) || (((((((a29 <= 275 && a25 == 11) && 130 <= a29) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1) && 247 <= a29)) || ((a25 <= 10 && a23 + 43 <= 0) && a4 == 1)) || ((((a25 == 13 && a8 == 15) && a23 + 43 <= 0) && a4 == 1) && a3 == 1)) || ((((10250 <= a29 && a25 <= 9) && a8 == 15) && a23 + 43 <= 0) && a3 == 1)) || (((((a25 == 11 && a8 == 15) && 99915 <= a29) && a23 <= 600000) && a4 == 1) && a3 == 1)) || (a25 <= 9 && (((a29 <= 130 && a25 == 12) && a4 == 1) || ((a25 <= 10 && a29 <= 130) && a4 == 1)))) || ((((((((a4 <= 0 && 0 <= a23 + 599772) && !(6 == input)) && a8 == 15) && a25 == 12) && !(3 == input)) && a29 <= 245) && a3 == 1) && a23 + 55 <= 0)) || ((a8 == 15 && ((((a25 == 11 && a29 <= 140) && !(a4 == 1)) && a23 + 43 <= 0) || (((a4 <= 0 && a25 == 10) && 0 <= (a29 * -1 + -28690) / 5 + 49) && a23 + 55 <= 0))) && a3 == 1)) || (((((((0 <= a23 + 599913 && a4 <= 0) && 140 < a29) && a8 == 15) && a29 <= 274) && a25 == 12) && a3 == 1) && a23 + 55 <= 0)) || ((((((((a25 <= 9 && a23 <= 312) && a8 == 15) && a29 <= 274) && 0 < a23 + 599778) && 142 <= a29) && a4 == 1) || (((((((312 <= a23 && a25 <= 9) && a8 == 15) && a29 <= 274) && 142 <= a29) && a4 == 1) || ((10 <= a25 && ((((((a25 <= 10 && 130 <= a29) && a8 == 15) && a29 <= 220) && (((245 < a29 || a29 <= 140) || a23 + 43 <= 0) || 138 < a23)) && a4 == 1) || ((((((a25 <= 10 && 130 <= a29) && a8 == 15) && a4 == 1) && a3 == 1) || ((((a25 <= 10 && 312 <= a23) && 130 <= a29) && a8 == 15) && a4 == 1)) && a29 <= 274))) && 142 <= a29)) && a23 <= 599997)) && a3 == 1)) || (((((307 <= a23 && a8 == 15) && 13 <= a25) && a4 == 1) && a23 <= 599997) && a3 == 1)) || ((((((a25 == 11 && 130 <= a29) && a8 == 15) && a4 == 1) && a3 == 1) && 247 <= a29) && a23 + 119992 <= 0)) || (((((a25 <= 10 && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1) && 247 <= a29)) || (((((((a25 <= 9 && a29 <= 140) && a23 <= 312) && a8 == 15) && a29 <= 274) && 0 < a23 + 599778) && a4 == 1) && a3 == 1)) || ((((((0 <= a23 + 599772 && a23 <= 312) && a8 == 15) && a25 == 12) && a4 == 1) && a3 == 1) && (((245 < a29 || a29 <= 140) || a23 + 43 <= 0) || 138 < a23)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 183.9s, OverallIterations: 36, TraceHistogramMax: 13, AutomataDifference: 102.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 64.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5732 SDtfs, 14697 SDslu, 1415 SDs, 0 SdLazy, 49035 SolverSat, 7480 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 62.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11358 GetRequests, 11178 SyntacticMatches, 2 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38196occurred in iteration=26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 11.5s AutomataMinimizationTime, 36 MinimizatonAttempts, 136179 StatesRemovedByMinimization, 34 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 149 NumberOfFragments, 1947 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1140171346 FormulaSimplificationTreeSizeReduction, 18.6s HoareSimplificationTime, 3 FomulaSimplificationsInter, 59314150 FormulaSimplificationTreeSizeReductionInter, 45.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.6s SsaConstructionTime, 5.4s SatisfiabilityAnalysisTime, 35.4s InterpolantComputationTime, 30007 NumberOfCodeBlocks, 30007 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 29953 ConstructedInterpolants, 0 QuantifiedInterpolants, 83445491 SizeOfPredicates, 13 NumberOfNonLiveVariables, 14920 ConjunctsInSsa, 95 ConjunctsInUnsatCore, 54 InterpolantComputations, 29 PerfectInterpolantSequences, 66782/71201 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...