./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label30.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label30.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/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 1d341ffa1499814075c27e208c9bb6316ab47f30 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:25:13,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:25:13,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:25:13,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:25:13,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:25:13,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:25:13,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:25:13,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:25:13,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:25:13,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:25:13,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:25:13,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:25:13,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:25:13,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:25:13,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:25:13,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:25:13,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:25:13,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:25:13,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:25:13,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:25:13,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:25:13,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:25:13,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:25:13,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:25:13,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:25:13,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:25:13,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:25:13,399 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:25:13,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:25:13,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:25:13,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:25:13,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:25:13,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:25:13,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:25:13,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:25:13,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:25:13,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:25:13,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:25:13,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:25:13,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:25:13,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:25:13,420 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 23:25:13,471 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:25:13,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:25:13,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:25:13,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:25:13,474 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:25:13,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:25:13,475 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:25:13,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:25:13,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:25:13,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:25:13,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:25:13,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:25:13,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:25:13,478 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:25:13,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:25:13,479 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:25:13,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:25:13,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:25:13,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:25:13,480 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:25:13,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:25:13,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:25:13,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:25:13,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:25:13,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:25:13,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:25:13,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:25:13,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:25:13,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:25:13,483 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_2875f3d5-35b1-448a-a46c-ca13ffd77c92/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d341ffa1499814075c27e208c9bb6316ab47f30 [2020-11-29 23:25:13,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:25:13,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:25:13,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:25:13,876 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:25:13,877 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:25:13,879 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem11_label30.c [2020-11-29 23:25:13,978 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/bin/uautomizer/data/3051e53e3/c1f7e0c1ebc747b4bca12d91dc3fd2f9/FLAGabc61d786 [2020-11-29 23:25:14,730 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:25:14,731 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/sv-benchmarks/c/eca-rers2012/Problem11_label30.c [2020-11-29 23:25:14,763 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/bin/uautomizer/data/3051e53e3/c1f7e0c1ebc747b4bca12d91dc3fd2f9/FLAGabc61d786 [2020-11-29 23:25:14,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/bin/uautomizer/data/3051e53e3/c1f7e0c1ebc747b4bca12d91dc3fd2f9 [2020-11-29 23:25:14,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:25:14,913 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:25:14,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:25:14,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:25:14,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:25:14,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:25:14" (1/1) ... [2020-11-29 23:25:14,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b80feb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:25:14, skipping insertion in model container [2020-11-29 23:25:14,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:25:14" (1/1) ... [2020-11-29 23:25:14,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:25:15,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:25:15,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:25:15,860 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:25:16,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:25:16,141 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:25:16,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:25:16 WrapperNode [2020-11-29 23:25:16,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:25:16,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:25:16,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:25:16,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:25:16,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:25:16" (1/1) ... [2020-11-29 23:25:16,196 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:25:16" (1/1) ... [2020-11-29 23:25:16,343 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:25:16,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:25:16,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:25:16,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:25:16,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:25:16" (1/1) ... [2020-11-29 23:25:16,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:25:16" (1/1) ... [2020-11-29 23:25:16,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:25:16" (1/1) ... [2020-11-29 23:25:16,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:25:16" (1/1) ... [2020-11-29 23:25:16,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:25:16" (1/1) ... [2020-11-29 23:25:16,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:25:16" (1/1) ... [2020-11-29 23:25:16,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:25:16" (1/1) ... [2020-11-29 23:25:16,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:25:16,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:25:16,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:25:16,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:25:16,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:25:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:25:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:25:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:25:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:25:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:25:19,299 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:25:19,299 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 23:25:19,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:25:19 BoogieIcfgContainer [2020-11-29 23:25:19,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:25:19,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:25:19,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:25:19,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:25:19,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:25:14" (1/3) ... [2020-11-29 23:25:19,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2691d8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:25:19, skipping insertion in model container [2020-11-29 23:25:19,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:25:16" (2/3) ... [2020-11-29 23:25:19,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2691d8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:25:19, skipping insertion in model container [2020-11-29 23:25:19,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:25:19" (3/3) ... [2020-11-29 23:25:19,314 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label30.c [2020-11-29 23:25:19,328 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:25:19,334 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 23:25:19,347 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 23:25:19,398 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:25:19,398 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:25:19,399 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:25:19,399 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:25:19,399 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:25:19,399 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:25:19,399 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:25:19,399 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:25:19,434 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-11-29 23:25:19,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 23:25:19,443 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:25:19,444 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] [2020-11-29 23:25:19,445 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:25:19,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:25:19,452 INFO L82 PathProgramCache]: Analyzing trace with hash -748286455, now seen corresponding path program 1 times [2020-11-29 23:25:19,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:25:19,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692015697] [2020-11-29 23:25:19,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:25:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:25:19,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:25:19,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692015697] [2020-11-29 23:25:19,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:25:19,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:25:19,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392065888] [2020-11-29 23:25:19,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:25:19,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:25:19,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:25:19,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:19,866 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-11-29 23:25:21,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:25:21,913 INFO L93 Difference]: Finished difference Result 777 states and 1364 transitions. [2020-11-29 23:25:21,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:25:21,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2020-11-29 23:25:21,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:25:21,934 INFO L225 Difference]: With dead ends: 777 [2020-11-29 23:25:21,934 INFO L226 Difference]: Without dead ends: 413 [2020-11-29 23:25:21,940 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:21,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-11-29 23:25:22,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 411. [2020-11-29 23:25:22,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-11-29 23:25:22,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 598 transitions. [2020-11-29 23:25:22,022 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 598 transitions. Word has length 29 [2020-11-29 23:25:22,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:25:22,023 INFO L481 AbstractCegarLoop]: Abstraction has 411 states and 598 transitions. [2020-11-29 23:25:22,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:25:22,023 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 598 transitions. [2020-11-29 23:25:22,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-11-29 23:25:22,028 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:25:22,029 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:25:22,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 23:25:22,029 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:25:22,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:25:22,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1370130510, now seen corresponding path program 1 times [2020-11-29 23:25:22,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:25:22,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845199347] [2020-11-29 23:25:22,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:25:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:25:22,287 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:25:22,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845199347] [2020-11-29 23:25:22,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:25:22,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:25:22,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471939717] [2020-11-29 23:25:22,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:25:22,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:25:22,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:25:22,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:22,295 INFO L87 Difference]: Start difference. First operand 411 states and 598 transitions. Second operand 3 states. [2020-11-29 23:25:23,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:25:23,537 INFO L93 Difference]: Finished difference Result 1209 states and 1765 transitions. [2020-11-29 23:25:23,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:25:23,542 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2020-11-29 23:25:23,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:25:23,549 INFO L225 Difference]: With dead ends: 1209 [2020-11-29 23:25:23,549 INFO L226 Difference]: Without dead ends: 800 [2020-11-29 23:25:23,553 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:23,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2020-11-29 23:25:23,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 787. [2020-11-29 23:25:23,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2020-11-29 23:25:23,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1089 transitions. [2020-11-29 23:25:23,613 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1089 transitions. Word has length 97 [2020-11-29 23:25:23,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:25:23,613 INFO L481 AbstractCegarLoop]: Abstraction has 787 states and 1089 transitions. [2020-11-29 23:25:23,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:25:23,614 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1089 transitions. [2020-11-29 23:25:23,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-11-29 23:25:23,619 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:25:23,620 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:25:23,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 23:25:23,620 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:25:23,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:25:23,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1231656336, now seen corresponding path program 1 times [2020-11-29 23:25:23,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:25:23,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873134577] [2020-11-29 23:25:23,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:25:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:25:23,852 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:25:23,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873134577] [2020-11-29 23:25:23,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:25:23,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:25:23,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366698559] [2020-11-29 23:25:23,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:25:23,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:25:23,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:25:23,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:23,865 INFO L87 Difference]: Start difference. First operand 787 states and 1089 transitions. Second operand 3 states. [2020-11-29 23:25:25,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:25:25,120 INFO L93 Difference]: Finished difference Result 1941 states and 2630 transitions. [2020-11-29 23:25:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:25:25,121 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-11-29 23:25:25,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:25:25,129 INFO L225 Difference]: With dead ends: 1941 [2020-11-29 23:25:25,129 INFO L226 Difference]: Without dead ends: 1156 [2020-11-29 23:25:25,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:25,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2020-11-29 23:25:25,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1156. [2020-11-29 23:25:25,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1156 states. [2020-11-29 23:25:25,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1476 transitions. [2020-11-29 23:25:25,180 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1476 transitions. Word has length 98 [2020-11-29 23:25:25,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:25:25,181 INFO L481 AbstractCegarLoop]: Abstraction has 1156 states and 1476 transitions. [2020-11-29 23:25:25,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:25:25,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1476 transitions. [2020-11-29 23:25:25,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-11-29 23:25:25,188 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:25:25,188 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:25:25,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 23:25:25,189 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:25:25,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:25:25,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1415326966, now seen corresponding path program 1 times [2020-11-29 23:25:25,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:25:25,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889908702] [2020-11-29 23:25:25,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:25:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:25:25,356 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:25:25,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889908702] [2020-11-29 23:25:25,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:25:25,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:25:25,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719664504] [2020-11-29 23:25:25,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:25:25,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:25:25,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:25:25,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:25,360 INFO L87 Difference]: Start difference. First operand 1156 states and 1476 transitions. Second operand 3 states. [2020-11-29 23:25:26,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:25:26,812 INFO L93 Difference]: Finished difference Result 2877 states and 3707 transitions. [2020-11-29 23:25:26,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:25:26,812 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2020-11-29 23:25:26,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:25:26,828 INFO L225 Difference]: With dead ends: 2877 [2020-11-29 23:25:26,828 INFO L226 Difference]: Without dead ends: 1723 [2020-11-29 23:25:26,831 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:26,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2020-11-29 23:25:26,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1529. [2020-11-29 23:25:26,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1529 states. [2020-11-29 23:25:26,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 1927 transitions. [2020-11-29 23:25:26,882 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 1927 transitions. Word has length 141 [2020-11-29 23:25:26,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:25:26,885 INFO L481 AbstractCegarLoop]: Abstraction has 1529 states and 1927 transitions. [2020-11-29 23:25:26,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:25:26,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 1927 transitions. [2020-11-29 23:25:26,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-11-29 23:25:26,893 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:25:26,894 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:25:26,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 23:25:26,894 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:25:26,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:25:26,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1022771821, now seen corresponding path program 1 times [2020-11-29 23:25:26,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:25:26,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182322885] [2020-11-29 23:25:26,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:25:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:25:27,210 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:25:27,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182322885] [2020-11-29 23:25:27,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:25:27,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:25:27,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908112921] [2020-11-29 23:25:27,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:25:27,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:25:27,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:25:27,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:27,213 INFO L87 Difference]: Start difference. First operand 1529 states and 1927 transitions. Second operand 3 states. [2020-11-29 23:25:28,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:25:28,739 INFO L93 Difference]: Finished difference Result 3617 states and 4543 transitions. [2020-11-29 23:25:28,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:25:28,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2020-11-29 23:25:28,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:25:28,755 INFO L225 Difference]: With dead ends: 3617 [2020-11-29 23:25:28,756 INFO L226 Difference]: Without dead ends: 1906 [2020-11-29 23:25:28,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:28,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2020-11-29 23:25:28,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1897. [2020-11-29 23:25:28,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1897 states. [2020-11-29 23:25:28,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2363 transitions. [2020-11-29 23:25:28,814 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2363 transitions. Word has length 172 [2020-11-29 23:25:28,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:25:28,818 INFO L481 AbstractCegarLoop]: Abstraction has 1897 states and 2363 transitions. [2020-11-29 23:25:28,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:25:28,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2363 transitions. [2020-11-29 23:25:28,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-11-29 23:25:28,823 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:25:28,824 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:25:28,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 23:25:28,824 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:25:28,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:25:28,825 INFO L82 PathProgramCache]: Analyzing trace with hash 246602421, now seen corresponding path program 1 times [2020-11-29 23:25:28,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:25:28,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771900061] [2020-11-29 23:25:28,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:25:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:25:29,204 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-11-29 23:25:29,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771900061] [2020-11-29 23:25:29,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:25:29,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:25:29,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90690326] [2020-11-29 23:25:29,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:25:29,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:25:29,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:25:29,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:29,207 INFO L87 Difference]: Start difference. First operand 1897 states and 2363 transitions. Second operand 3 states. [2020-11-29 23:25:30,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:25:30,606 INFO L93 Difference]: Finished difference Result 4904 states and 6161 transitions. [2020-11-29 23:25:30,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:25:30,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-11-29 23:25:30,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:25:30,628 INFO L225 Difference]: With dead ends: 4904 [2020-11-29 23:25:30,628 INFO L226 Difference]: Without dead ends: 3009 [2020-11-29 23:25:30,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:30,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3009 states. [2020-11-29 23:25:30,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3009 to 3008. [2020-11-29 23:25:30,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3008 states. [2020-11-29 23:25:30,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 3620 transitions. [2020-11-29 23:25:30,720 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 3620 transitions. Word has length 210 [2020-11-29 23:25:30,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:25:30,726 INFO L481 AbstractCegarLoop]: Abstraction has 3008 states and 3620 transitions. [2020-11-29 23:25:30,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:25:30,726 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 3620 transitions. [2020-11-29 23:25:30,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-11-29 23:25:30,730 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:25:30,732 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 23:25:30,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 23:25:30,732 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:25:30,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:25:30,734 INFO L82 PathProgramCache]: Analyzing trace with hash -800064684, now seen corresponding path program 1 times [2020-11-29 23:25:30,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:25:30,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322558272] [2020-11-29 23:25:30,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:25:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:25:31,004 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-11-29 23:25:31,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322558272] [2020-11-29 23:25:31,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:25:31,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:25:31,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902014735] [2020-11-29 23:25:31,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:25:31,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:25:31,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:25:31,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:31,010 INFO L87 Difference]: Start difference. First operand 3008 states and 3620 transitions. Second operand 3 states. [2020-11-29 23:25:32,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:25:32,471 INFO L93 Difference]: Finished difference Result 6759 states and 8218 transitions. [2020-11-29 23:25:32,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:25:32,472 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2020-11-29 23:25:32,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:25:32,500 INFO L225 Difference]: With dead ends: 6759 [2020-11-29 23:25:32,500 INFO L226 Difference]: Without dead ends: 3753 [2020-11-29 23:25:32,506 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:32,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2020-11-29 23:25:32,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3560. [2020-11-29 23:25:32,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3560 states. [2020-11-29 23:25:32,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 4267 transitions. [2020-11-29 23:25:32,630 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 4267 transitions. Word has length 211 [2020-11-29 23:25:32,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:25:32,631 INFO L481 AbstractCegarLoop]: Abstraction has 3560 states and 4267 transitions. [2020-11-29 23:25:32,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:25:32,632 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 4267 transitions. [2020-11-29 23:25:32,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-11-29 23:25:32,638 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:25:32,639 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 23:25:32,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 23:25:32,640 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:25:32,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:25:32,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1592690554, now seen corresponding path program 1 times [2020-11-29 23:25:32,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:25:32,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586251246] [2020-11-29 23:25:32,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:25:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:25:32,961 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:25:32,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586251246] [2020-11-29 23:25:32,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:25:32,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 23:25:32,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655216615] [2020-11-29 23:25:32,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:25:32,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:25:32,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:25:32,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:25:32,965 INFO L87 Difference]: Start difference. First operand 3560 states and 4267 transitions. Second operand 4 states. [2020-11-29 23:25:35,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:25:35,492 INFO L93 Difference]: Finished difference Result 11016 states and 13448 transitions. [2020-11-29 23:25:35,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:25:35,493 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 231 [2020-11-29 23:25:35,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:25:35,545 INFO L225 Difference]: With dead ends: 11016 [2020-11-29 23:25:35,545 INFO L226 Difference]: Without dead ends: 7458 [2020-11-29 23:25:35,551 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 [2020-11-29 23:25:35,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7458 states. [2020-11-29 23:25:35,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7458 to 6158. [2020-11-29 23:25:35,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6158 states. [2020-11-29 23:25:35,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6158 states to 6158 states and 7351 transitions. [2020-11-29 23:25:35,759 INFO L78 Accepts]: Start accepts. Automaton has 6158 states and 7351 transitions. Word has length 231 [2020-11-29 23:25:35,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:25:35,760 INFO L481 AbstractCegarLoop]: Abstraction has 6158 states and 7351 transitions. [2020-11-29 23:25:35,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:25:35,760 INFO L276 IsEmpty]: Start isEmpty. Operand 6158 states and 7351 transitions. [2020-11-29 23:25:35,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-29 23:25:35,766 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:25:35,767 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 23:25:35,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 23:25:35,767 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:25:35,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:25:35,768 INFO L82 PathProgramCache]: Analyzing trace with hash 564220191, now seen corresponding path program 1 times [2020-11-29 23:25:35,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:25:35,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869613350] [2020-11-29 23:25:35,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:25:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:25:36,025 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:25:36,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869613350] [2020-11-29 23:25:36,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:25:36,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 23:25:36,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084197881] [2020-11-29 23:25:36,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:25:36,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:25:36,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:25:36,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:25:36,037 INFO L87 Difference]: Start difference. First operand 6158 states and 7351 transitions. Second operand 4 states. [2020-11-29 23:25:38,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:25:38,277 INFO L93 Difference]: Finished difference Result 15827 states and 19193 transitions. [2020-11-29 23:25:38,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:25:38,278 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 241 [2020-11-29 23:25:38,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:25:38,342 INFO L225 Difference]: With dead ends: 15827 [2020-11-29 23:25:38,343 INFO L226 Difference]: Without dead ends: 9671 [2020-11-29 23:25:38,353 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 [2020-11-29 23:25:38,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9671 states. [2020-11-29 23:25:38,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9671 to 9291. [2020-11-29 23:25:38,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9291 states. [2020-11-29 23:25:38,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9291 states to 9291 states and 11143 transitions. [2020-11-29 23:25:38,643 INFO L78 Accepts]: Start accepts. Automaton has 9291 states and 11143 transitions. Word has length 241 [2020-11-29 23:25:38,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:25:38,644 INFO L481 AbstractCegarLoop]: Abstraction has 9291 states and 11143 transitions. [2020-11-29 23:25:38,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:25:38,644 INFO L276 IsEmpty]: Start isEmpty. Operand 9291 states and 11143 transitions. [2020-11-29 23:25:38,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-29 23:25:38,652 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:25:38,653 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 23:25:38,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 23:25:38,653 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:25:38,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:25:38,654 INFO L82 PathProgramCache]: Analyzing trace with hash -191269524, now seen corresponding path program 1 times [2020-11-29 23:25:38,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:25:38,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043546046] [2020-11-29 23:25:38,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:25:38,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:25:38,865 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:25:38,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043546046] [2020-11-29 23:25:38,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:25:38,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:25:38,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551139168] [2020-11-29 23:25:38,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:25:38,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:25:38,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:25:38,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:38,868 INFO L87 Difference]: Start difference. First operand 9291 states and 11143 transitions. Second operand 3 states. [2020-11-29 23:25:40,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:25:40,621 INFO L93 Difference]: Finished difference Result 22856 states and 27561 transitions. [2020-11-29 23:25:40,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:25:40,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2020-11-29 23:25:40,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:25:40,664 INFO L225 Difference]: With dead ends: 22856 [2020-11-29 23:25:40,665 INFO L226 Difference]: Without dead ends: 13567 [2020-11-29 23:25:40,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:40,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13567 states. [2020-11-29 23:25:40,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13567 to 13563. [2020-11-29 23:25:40,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13563 states. [2020-11-29 23:25:40,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13563 states to 13563 states and 16104 transitions. [2020-11-29 23:25:40,948 INFO L78 Accepts]: Start accepts. Automaton has 13563 states and 16104 transitions. Word has length 241 [2020-11-29 23:25:40,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:25:40,949 INFO L481 AbstractCegarLoop]: Abstraction has 13563 states and 16104 transitions. [2020-11-29 23:25:40,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:25:40,949 INFO L276 IsEmpty]: Start isEmpty. Operand 13563 states and 16104 transitions. [2020-11-29 23:25:40,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-11-29 23:25:40,956 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:25:40,957 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 23:25:40,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 23:25:40,958 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:25:40,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:25:40,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1366965073, now seen corresponding path program 1 times [2020-11-29 23:25:40,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:25:40,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338147489] [2020-11-29 23:25:40,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:25:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:25:41,228 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-11-29 23:25:41,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338147489] [2020-11-29 23:25:41,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:25:41,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:25:41,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143075162] [2020-11-29 23:25:41,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:25:41,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:25:41,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:25:41,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:41,232 INFO L87 Difference]: Start difference. First operand 13563 states and 16104 transitions. Second operand 3 states. [2020-11-29 23:25:42,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:25:42,715 INFO L93 Difference]: Finished difference Result 32459 states and 38720 transitions. [2020-11-29 23:25:42,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:25:42,720 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 243 [2020-11-29 23:25:42,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:25:42,765 INFO L225 Difference]: With dead ends: 32459 [2020-11-29 23:25:42,765 INFO L226 Difference]: Without dead ends: 18714 [2020-11-29 23:25:42,785 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:42,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18714 states. [2020-11-29 23:25:43,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18714 to 17790. [2020-11-29 23:25:43,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17790 states. [2020-11-29 23:25:43,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17790 states to 17790 states and 20771 transitions. [2020-11-29 23:25:43,155 INFO L78 Accepts]: Start accepts. Automaton has 17790 states and 20771 transitions. Word has length 243 [2020-11-29 23:25:43,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:25:43,156 INFO L481 AbstractCegarLoop]: Abstraction has 17790 states and 20771 transitions. [2020-11-29 23:25:43,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:25:43,157 INFO L276 IsEmpty]: Start isEmpty. Operand 17790 states and 20771 transitions. [2020-11-29 23:25:43,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-11-29 23:25:43,164 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:25:43,165 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 23:25:43,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 23:25:43,165 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:25:43,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:25:43,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1922246716, now seen corresponding path program 1 times [2020-11-29 23:25:43,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:25:43,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849232387] [2020-11-29 23:25:43,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:25:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:25:43,356 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-11-29 23:25:43,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849232387] [2020-11-29 23:25:43,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:25:43,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:25:43,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579856229] [2020-11-29 23:25:43,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:25:43,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:25:43,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:25:43,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:43,364 INFO L87 Difference]: Start difference. First operand 17790 states and 20771 transitions. Second operand 3 states. [2020-11-29 23:25:44,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:25:44,963 INFO L93 Difference]: Finished difference Result 35588 states and 41560 transitions. [2020-11-29 23:25:44,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:25:44,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 248 [2020-11-29 23:25:44,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:25:45,007 INFO L225 Difference]: With dead ends: 35588 [2020-11-29 23:25:45,008 INFO L226 Difference]: Without dead ends: 17800 [2020-11-29 23:25:45,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:45,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17800 states. [2020-11-29 23:25:45,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17800 to 17789. [2020-11-29 23:25:45,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17789 states. [2020-11-29 23:25:45,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17789 states to 17789 states and 20270 transitions. [2020-11-29 23:25:45,357 INFO L78 Accepts]: Start accepts. Automaton has 17789 states and 20270 transitions. Word has length 248 [2020-11-29 23:25:45,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:25:45,358 INFO L481 AbstractCegarLoop]: Abstraction has 17789 states and 20270 transitions. [2020-11-29 23:25:45,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:25:45,359 INFO L276 IsEmpty]: Start isEmpty. Operand 17789 states and 20270 transitions. [2020-11-29 23:25:45,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-11-29 23:25:45,367 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:25:45,368 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 23:25:45,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 23:25:45,368 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:25:45,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:25:45,369 INFO L82 PathProgramCache]: Analyzing trace with hash -637922865, now seen corresponding path program 1 times [2020-11-29 23:25:45,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:25:45,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661667553] [2020-11-29 23:25:45,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:25:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:25:45,783 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:25:45,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661667553] [2020-11-29 23:25:45,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:25:45,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:25:45,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49761094] [2020-11-29 23:25:45,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:25:45,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:25:45,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:25:45,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:25:45,787 INFO L87 Difference]: Start difference. First operand 17789 states and 20270 transitions. Second operand 4 states. [2020-11-29 23:25:47,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:25:47,940 INFO L93 Difference]: Finished difference Result 32961 states and 37608 transitions. [2020-11-29 23:25:47,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:25:47,940 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 262 [2020-11-29 23:25:47,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:25:47,961 INFO L225 Difference]: With dead ends: 32961 [2020-11-29 23:25:47,961 INFO L226 Difference]: Without dead ends: 14806 [2020-11-29 23:25:47,970 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 [2020-11-29 23:25:47,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14806 states. [2020-11-29 23:25:48,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14806 to 11297. [2020-11-29 23:25:48,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11297 states. [2020-11-29 23:25:48,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11297 states to 11297 states and 12559 transitions. [2020-11-29 23:25:48,157 INFO L78 Accepts]: Start accepts. Automaton has 11297 states and 12559 transitions. Word has length 262 [2020-11-29 23:25:48,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:25:48,158 INFO L481 AbstractCegarLoop]: Abstraction has 11297 states and 12559 transitions. [2020-11-29 23:25:48,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:25:48,158 INFO L276 IsEmpty]: Start isEmpty. Operand 11297 states and 12559 transitions. [2020-11-29 23:25:48,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-11-29 23:25:48,167 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:25:48,168 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:25:48,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 23:25:48,169 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:25:48,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:25:48,169 INFO L82 PathProgramCache]: Analyzing trace with hash -2114254547, now seen corresponding path program 1 times [2020-11-29 23:25:48,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:25:48,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875041142] [2020-11-29 23:25:48,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:25:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:25:48,447 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2020-11-29 23:25:48,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875041142] [2020-11-29 23:25:48,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:25:48,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:25:48,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993276343] [2020-11-29 23:25:48,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:25:48,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:25:48,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:25:48,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:48,450 INFO L87 Difference]: Start difference. First operand 11297 states and 12559 transitions. Second operand 3 states. [2020-11-29 23:25:49,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:25:49,756 INFO L93 Difference]: Finished difference Result 23880 states and 26555 transitions. [2020-11-29 23:25:49,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:25:49,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 296 [2020-11-29 23:25:49,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:25:49,775 INFO L225 Difference]: With dead ends: 23880 [2020-11-29 23:25:49,775 INFO L226 Difference]: Without dead ends: 12585 [2020-11-29 23:25:49,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:49,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12585 states. [2020-11-29 23:25:49,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12585 to 12033. [2020-11-29 23:25:49,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12033 states. [2020-11-29 23:25:49,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12033 states to 12033 states and 13331 transitions. [2020-11-29 23:25:49,964 INFO L78 Accepts]: Start accepts. Automaton has 12033 states and 13331 transitions. Word has length 296 [2020-11-29 23:25:49,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:25:49,965 INFO L481 AbstractCegarLoop]: Abstraction has 12033 states and 13331 transitions. [2020-11-29 23:25:49,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:25:49,966 INFO L276 IsEmpty]: Start isEmpty. Operand 12033 states and 13331 transitions. [2020-11-29 23:25:49,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-11-29 23:25:49,977 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:25:49,978 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:25:49,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-29 23:25:49,978 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:25:49,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:25:49,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1203609203, now seen corresponding path program 1 times [2020-11-29 23:25:49,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:25:49,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498300920] [2020-11-29 23:25:49,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:25:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:25:50,758 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 225 proven. 29 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-11-29 23:25:50,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498300920] [2020-11-29 23:25:50,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689958346] [2020-11-29 23:25:50,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:25:50,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:25:50,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 23:25:51,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:25:51,645 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-11-29 23:25:51,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:25:51,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-29 23:25:51,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819298573] [2020-11-29 23:25:51,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:25:51,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:25:51,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:25:51,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-29 23:25:51,654 INFO L87 Difference]: Start difference. First operand 12033 states and 13331 transitions. Second operand 4 states. [2020-11-29 23:25:53,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:25:53,763 INFO L93 Difference]: Finished difference Result 24434 states and 27042 transitions. [2020-11-29 23:25:53,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:25:53,764 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 316 [2020-11-29 23:25:53,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:25:53,817 INFO L225 Difference]: With dead ends: 24434 [2020-11-29 23:25:53,818 INFO L226 Difference]: Without dead ends: 12403 [2020-11-29 23:25:53,825 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-29 23:25:53,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12403 states. [2020-11-29 23:25:54,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12403 to 11849. [2020-11-29 23:25:54,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11849 states. [2020-11-29 23:25:54,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11849 states to 11849 states and 13123 transitions. [2020-11-29 23:25:54,084 INFO L78 Accepts]: Start accepts. Automaton has 11849 states and 13123 transitions. Word has length 316 [2020-11-29 23:25:54,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:25:54,085 INFO L481 AbstractCegarLoop]: Abstraction has 11849 states and 13123 transitions. [2020-11-29 23:25:54,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:25:54,085 INFO L276 IsEmpty]: Start isEmpty. Operand 11849 states and 13123 transitions. [2020-11-29 23:25:54,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2020-11-29 23:25:54,098 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:25:54,099 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:25:54,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-11-29 23:25:54,312 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:25:54,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:25:54,313 INFO L82 PathProgramCache]: Analyzing trace with hash 495440124, now seen corresponding path program 1 times [2020-11-29 23:25:54,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:25:54,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162376005] [2020-11-29 23:25:54,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:25:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:25:54,590 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2020-11-29 23:25:54,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162376005] [2020-11-29 23:25:54,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:25:54,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:25:54,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116149906] [2020-11-29 23:25:54,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:25:54,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:25:54,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:25:54,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:54,594 INFO L87 Difference]: Start difference. First operand 11849 states and 13123 transitions. Second operand 3 states. [2020-11-29 23:25:56,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:25:56,104 INFO L93 Difference]: Finished difference Result 25537 states and 28266 transitions. [2020-11-29 23:25:56,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:25:56,112 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 323 [2020-11-29 23:25:56,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:25:56,158 INFO L225 Difference]: With dead ends: 25537 [2020-11-29 23:25:56,159 INFO L226 Difference]: Without dead ends: 13690 [2020-11-29 23:25:56,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:56,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13690 states. [2020-11-29 23:25:56,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13690 to 10728. [2020-11-29 23:25:56,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10728 states. [2020-11-29 23:25:56,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10728 states to 10728 states and 11884 transitions. [2020-11-29 23:25:56,345 INFO L78 Accepts]: Start accepts. Automaton has 10728 states and 11884 transitions. Word has length 323 [2020-11-29 23:25:56,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:25:56,346 INFO L481 AbstractCegarLoop]: Abstraction has 10728 states and 11884 transitions. [2020-11-29 23:25:56,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:25:56,346 INFO L276 IsEmpty]: Start isEmpty. Operand 10728 states and 11884 transitions. [2020-11-29 23:25:56,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-11-29 23:25:56,358 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:25:56,359 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:25:56,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-29 23:25:56,360 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:25:56,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:25:56,360 INFO L82 PathProgramCache]: Analyzing trace with hash 570423898, now seen corresponding path program 1 times [2020-11-29 23:25:56,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:25:56,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285017925] [2020-11-29 23:25:56,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:25:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:25:56,610 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-11-29 23:25:56,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285017925] [2020-11-29 23:25:56,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:25:56,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:25:56,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254957388] [2020-11-29 23:25:56,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:25:56,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:25:56,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:25:56,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:56,614 INFO L87 Difference]: Start difference. First operand 10728 states and 11884 transitions. Second operand 3 states. [2020-11-29 23:25:57,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:25:57,907 INFO L93 Difference]: Finished difference Result 23845 states and 26399 transitions. [2020-11-29 23:25:57,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:25:57,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 325 [2020-11-29 23:25:57,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:25:57,932 INFO L225 Difference]: With dead ends: 23845 [2020-11-29 23:25:57,933 INFO L226 Difference]: Without dead ends: 13119 [2020-11-29 23:25:57,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:25:57,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13119 states. [2020-11-29 23:25:58,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13119 to 10911. [2020-11-29 23:25:58,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10911 states. [2020-11-29 23:25:58,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10911 states to 10911 states and 12096 transitions. [2020-11-29 23:25:58,126 INFO L78 Accepts]: Start accepts. Automaton has 10911 states and 12096 transitions. Word has length 325 [2020-11-29 23:25:58,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:25:58,127 INFO L481 AbstractCegarLoop]: Abstraction has 10911 states and 12096 transitions. [2020-11-29 23:25:58,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:25:58,127 INFO L276 IsEmpty]: Start isEmpty. Operand 10911 states and 12096 transitions. [2020-11-29 23:25:58,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-11-29 23:25:58,141 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:25:58,142 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:25:58,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-29 23:25:58,142 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:25:58,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:25:58,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1727480632, now seen corresponding path program 1 times [2020-11-29 23:25:58,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:25:58,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448868279] [2020-11-29 23:25:58,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:25:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:25:58,507 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-11-29 23:25:58,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448868279] [2020-11-29 23:25:58,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:25:58,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 23:25:58,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206059363] [2020-11-29 23:25:58,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:25:58,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:25:58,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:25:58,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:25:58,510 INFO L87 Difference]: Start difference. First operand 10911 states and 12096 transitions. Second operand 4 states. [2020-11-29 23:26:00,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:26:00,476 INFO L93 Difference]: Finished difference Result 26062 states and 28878 transitions. [2020-11-29 23:26:00,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:26:00,477 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 338 [2020-11-29 23:26:00,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:26:00,494 INFO L225 Difference]: With dead ends: 26062 [2020-11-29 23:26:00,494 INFO L226 Difference]: Without dead ends: 13677 [2020-11-29 23:26:00,503 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 [2020-11-29 23:26:00,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13677 states. [2020-11-29 23:26:00,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13677 to 10539. [2020-11-29 23:26:00,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10539 states. [2020-11-29 23:26:00,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10539 states to 10539 states and 11562 transitions. [2020-11-29 23:26:00,772 INFO L78 Accepts]: Start accepts. Automaton has 10539 states and 11562 transitions. Word has length 338 [2020-11-29 23:26:00,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:26:00,773 INFO L481 AbstractCegarLoop]: Abstraction has 10539 states and 11562 transitions. [2020-11-29 23:26:00,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:26:00,773 INFO L276 IsEmpty]: Start isEmpty. Operand 10539 states and 11562 transitions. [2020-11-29 23:26:00,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2020-11-29 23:26:00,795 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:26:00,796 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:26:00,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-29 23:26:00,796 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:26:00,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:26:00,797 INFO L82 PathProgramCache]: Analyzing trace with hash 334372640, now seen corresponding path program 1 times [2020-11-29 23:26:00,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:26:00,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740086391] [2020-11-29 23:26:00,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:26:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:26:01,919 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 154 proven. 259 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:26:01,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740086391] [2020-11-29 23:26:01,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835798853] [2020-11-29 23:26:01,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:26:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:26:02,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 23:26:02,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:26:02,386 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2020-11-29 23:26:02,387 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-29 23:26:02,401 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 23:26:02,427 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:26:02,477 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:26:02,490 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:26:03,134 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 154 proven. 259 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:26:03,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:26:03,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-11-29 23:26:03,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326189979] [2020-11-29 23:26:03,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 23:26:03,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:26:03,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 23:26:03,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-29 23:26:03,138 INFO L87 Difference]: Start difference. First operand 10539 states and 11562 transitions. Second operand 9 states. [2020-11-29 23:26:09,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:26:09,875 INFO L93 Difference]: Finished difference Result 24397 states and 26677 transitions. [2020-11-29 23:26:09,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 23:26:09,876 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 441 [2020-11-29 23:26:09,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:26:09,891 INFO L225 Difference]: With dead ends: 24397 [2020-11-29 23:26:09,891 INFO L226 Difference]: Without dead ends: 13860 [2020-11-29 23:26:09,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 437 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-11-29 23:26:09,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13860 states. [2020-11-29 23:26:10,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13860 to 11459. [2020-11-29 23:26:10,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11459 states. [2020-11-29 23:26:10,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11459 states to 11459 states and 12544 transitions. [2020-11-29 23:26:10,169 INFO L78 Accepts]: Start accepts. Automaton has 11459 states and 12544 transitions. Word has length 441 [2020-11-29 23:26:10,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:26:10,171 INFO L481 AbstractCegarLoop]: Abstraction has 11459 states and 12544 transitions. [2020-11-29 23:26:10,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 23:26:10,171 INFO L276 IsEmpty]: Start isEmpty. Operand 11459 states and 12544 transitions. [2020-11-29 23:26:10,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2020-11-29 23:26:10,190 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:26:10,193 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 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] [2020-11-29 23:26:10,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:26:10,420 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:26:10,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:26:10,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1726389291, now seen corresponding path program 1 times [2020-11-29 23:26:10,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:26:10,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406910634] [2020-11-29 23:26:10,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:26:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:26:10,821 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 507 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-11-29 23:26:10,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406910634] [2020-11-29 23:26:10,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:26:10,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:26:10,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331461925] [2020-11-29 23:26:10,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:26:10,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:26:10,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:26:10,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:26:10,824 INFO L87 Difference]: Start difference. First operand 11459 states and 12544 transitions. Second operand 3 states. [2020-11-29 23:26:12,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:26:12,109 INFO L93 Difference]: Finished difference Result 24206 states and 26519 transitions. [2020-11-29 23:26:12,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:26:12,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 463 [2020-11-29 23:26:12,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:26:12,127 INFO L225 Difference]: With dead ends: 24206 [2020-11-29 23:26:12,127 INFO L226 Difference]: Without dead ends: 12748 [2020-11-29 23:26:12,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:26:12,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12748 states. [2020-11-29 23:26:12,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12748 to 11457. [2020-11-29 23:26:12,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11457 states. [2020-11-29 23:26:12,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11457 states to 11457 states and 12514 transitions. [2020-11-29 23:26:12,326 INFO L78 Accepts]: Start accepts. Automaton has 11457 states and 12514 transitions. Word has length 463 [2020-11-29 23:26:12,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:26:12,327 INFO L481 AbstractCegarLoop]: Abstraction has 11457 states and 12514 transitions. [2020-11-29 23:26:12,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:26:12,328 INFO L276 IsEmpty]: Start isEmpty. Operand 11457 states and 12514 transitions. [2020-11-29 23:26:12,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2020-11-29 23:26:12,344 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:26:12,346 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 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] [2020-11-29 23:26:12,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-29 23:26:12,347 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:26:12,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:26:12,348 INFO L82 PathProgramCache]: Analyzing trace with hash -2082932749, now seen corresponding path program 1 times [2020-11-29 23:26:12,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:26:12,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515830156] [2020-11-29 23:26:12,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:26:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:26:13,051 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 547 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-11-29 23:26:13,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515830156] [2020-11-29 23:26:13,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:26:13,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:26:13,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155806333] [2020-11-29 23:26:13,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:26:13,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:26:13,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:26:13,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:26:13,054 INFO L87 Difference]: Start difference. First operand 11457 states and 12514 transitions. Second operand 4 states. [2020-11-29 23:26:14,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:26:14,994 INFO L93 Difference]: Finished difference Result 31025 states and 33833 transitions. [2020-11-29 23:26:14,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:26:14,995 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 476 [2020-11-29 23:26:14,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:26:15,015 INFO L225 Difference]: With dead ends: 31025 [2020-11-29 23:26:15,015 INFO L226 Difference]: Without dead ends: 19386 [2020-11-29 23:26:15,021 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 [2020-11-29 23:26:15,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19386 states. [2020-11-29 23:26:15,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19386 to 18275. [2020-11-29 23:26:15,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18275 states. [2020-11-29 23:26:15,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18275 states to 18275 states and 19910 transitions. [2020-11-29 23:26:15,306 INFO L78 Accepts]: Start accepts. Automaton has 18275 states and 19910 transitions. Word has length 476 [2020-11-29 23:26:15,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:26:15,307 INFO L481 AbstractCegarLoop]: Abstraction has 18275 states and 19910 transitions. [2020-11-29 23:26:15,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:26:15,307 INFO L276 IsEmpty]: Start isEmpty. Operand 18275 states and 19910 transitions. [2020-11-29 23:26:15,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2020-11-29 23:26:15,329 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:26:15,329 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-11-29 23:26:15,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-29 23:26:15,330 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:26:15,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:26:15,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1700907557, now seen corresponding path program 1 times [2020-11-29 23:26:15,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:26:15,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658749105] [2020-11-29 23:26:15,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:26:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:26:16,197 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 304 proven. 403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:26:16,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658749105] [2020-11-29 23:26:16,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649908321] [2020-11-29 23:26:16,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:26:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:26:16,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 23:26:16,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:26:16,755 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2020-11-29 23:26:16,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:26:16,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-11-29 23:26:16,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485411497] [2020-11-29 23:26:16,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:26:16,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:26:16,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:26:16,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:26:16,760 INFO L87 Difference]: Start difference. First operand 18275 states and 19910 transitions. Second operand 3 states. [2020-11-29 23:26:17,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:26:17,912 INFO L93 Difference]: Finished difference Result 34891 states and 37975 transitions. [2020-11-29 23:26:17,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:26:17,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 480 [2020-11-29 23:26:17,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:26:17,934 INFO L225 Difference]: With dead ends: 34891 [2020-11-29 23:26:17,934 INFO L226 Difference]: Without dead ends: 19014 [2020-11-29 23:26:17,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:26:17,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19014 states. [2020-11-29 23:26:18,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19014 to 17539. [2020-11-29 23:26:18,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17539 states. [2020-11-29 23:26:18,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17539 states to 17539 states and 19113 transitions. [2020-11-29 23:26:18,183 INFO L78 Accepts]: Start accepts. Automaton has 17539 states and 19113 transitions. Word has length 480 [2020-11-29 23:26:18,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:26:18,183 INFO L481 AbstractCegarLoop]: Abstraction has 17539 states and 19113 transitions. [2020-11-29 23:26:18,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:26:18,183 INFO L276 IsEmpty]: Start isEmpty. Operand 17539 states and 19113 transitions. [2020-11-29 23:26:18,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2020-11-29 23:26:18,193 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:26:18,194 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-29 23:26:18,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-11-29 23:26:18,396 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:26:18,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:26:18,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1344213903, now seen corresponding path program 1 times [2020-11-29 23:26:18,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:26:18,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757433297] [2020-11-29 23:26:18,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:26:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:26:18,899 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2020-11-29 23:26:18,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757433297] [2020-11-29 23:26:18,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:26:18,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 23:26:18,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745366160] [2020-11-29 23:26:18,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:26:18,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:26:18,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:26:18,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:26:18,903 INFO L87 Difference]: Start difference. First operand 17539 states and 19113 transitions. Second operand 4 states. [2020-11-29 23:26:23,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:26:23,232 INFO L93 Difference]: Finished difference Result 36188 states and 39397 transitions. [2020-11-29 23:26:23,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:26:23,233 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 489 [2020-11-29 23:26:23,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:26:23,259 INFO L225 Difference]: With dead ends: 36188 [2020-11-29 23:26:23,259 INFO L226 Difference]: Without dead ends: 21047 [2020-11-29 23:26:23,270 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 [2020-11-29 23:26:23,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21047 states. [2020-11-29 23:26:23,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21047 to 17723. [2020-11-29 23:26:23,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17723 states. [2020-11-29 23:26:23,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17723 states to 17723 states and 19324 transitions. [2020-11-29 23:26:23,500 INFO L78 Accepts]: Start accepts. Automaton has 17723 states and 19324 transitions. Word has length 489 [2020-11-29 23:26:23,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:26:23,501 INFO L481 AbstractCegarLoop]: Abstraction has 17723 states and 19324 transitions. [2020-11-29 23:26:23,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:26:23,501 INFO L276 IsEmpty]: Start isEmpty. Operand 17723 states and 19324 transitions. [2020-11-29 23:26:23,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2020-11-29 23:26:23,512 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:26:23,512 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-11-29 23:26:23,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-29 23:26:23,512 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:26:23,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:26:23,513 INFO L82 PathProgramCache]: Analyzing trace with hash -669465753, now seen corresponding path program 1 times [2020-11-29 23:26:23,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:26:23,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457737458] [2020-11-29 23:26:23,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:26:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:26:25,028 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 576 proven. 30 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-11-29 23:26:25,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457737458] [2020-11-29 23:26:25,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392535474] [2020-11-29 23:26:25,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:26:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:26:25,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 23:26:25,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:26:25,553 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 567 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-11-29 23:26:25,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:26:25,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2020-11-29 23:26:25,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600966197] [2020-11-29 23:26:25,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:26:25,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:26:25,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:26:25,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-29 23:26:25,555 INFO L87 Difference]: Start difference. First operand 17723 states and 19324 transitions. Second operand 3 states. [2020-11-29 23:26:26,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:26:26,931 INFO L93 Difference]: Finished difference Result 33611 states and 36665 transitions. [2020-11-29 23:26:26,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:26:26,932 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 511 [2020-11-29 23:26:26,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:26:26,950 INFO L225 Difference]: With dead ends: 33611 [2020-11-29 23:26:26,950 INFO L226 Difference]: Without dead ends: 18286 [2020-11-29 23:26:26,958 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 510 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-29 23:26:26,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18286 states. [2020-11-29 23:26:27,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18286 to 17545. [2020-11-29 23:26:27,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17545 states. [2020-11-29 23:26:27,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17545 states to 17545 states and 19107 transitions. [2020-11-29 23:26:27,252 INFO L78 Accepts]: Start accepts. Automaton has 17545 states and 19107 transitions. Word has length 511 [2020-11-29 23:26:27,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:26:27,252 INFO L481 AbstractCegarLoop]: Abstraction has 17545 states and 19107 transitions. [2020-11-29 23:26:27,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:26:27,253 INFO L276 IsEmpty]: Start isEmpty. Operand 17545 states and 19107 transitions. [2020-11-29 23:26:27,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2020-11-29 23:26:27,263 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:26:27,263 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-11-29 23:26:27,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:26:27,464 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:26:27,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:26:27,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1818559806, now seen corresponding path program 1 times [2020-11-29 23:26:27,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:26:27,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868877456] [2020-11-29 23:26:27,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:26:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:26:28,433 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 267 proven. 340 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2020-11-29 23:26:28,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868877456] [2020-11-29 23:26:28,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436779373] [2020-11-29 23:26:28,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:26:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:26:28,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 700 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 23:26:28,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:26:28,999 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2020-11-29 23:26:28,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:26:29,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-11-29 23:26:29,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780152009] [2020-11-29 23:26:29,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:26:29,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:26:29,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:26:29,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:26:29,002 INFO L87 Difference]: Start difference. First operand 17545 states and 19107 transitions. Second operand 3 states. [2020-11-29 23:26:30,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:26:30,545 INFO L93 Difference]: Finished difference Result 33246 states and 36163 transitions. [2020-11-29 23:26:30,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:26:30,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 514 [2020-11-29 23:26:30,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:26:30,565 INFO L225 Difference]: With dead ends: 33246 [2020-11-29 23:26:30,565 INFO L226 Difference]: Without dead ends: 18099 [2020-11-29 23:26:30,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:26:30,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18099 states. [2020-11-29 23:26:30,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18099 to 12569. [2020-11-29 23:26:30,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12569 states. [2020-11-29 23:26:30,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12569 states to 12569 states and 13642 transitions. [2020-11-29 23:26:30,757 INFO L78 Accepts]: Start accepts. Automaton has 12569 states and 13642 transitions. Word has length 514 [2020-11-29 23:26:30,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:26:30,758 INFO L481 AbstractCegarLoop]: Abstraction has 12569 states and 13642 transitions. [2020-11-29 23:26:30,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:26:30,758 INFO L276 IsEmpty]: Start isEmpty. Operand 12569 states and 13642 transitions. [2020-11-29 23:26:30,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2020-11-29 23:26:30,774 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:26:30,774 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 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] [2020-11-29 23:26:30,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-11-29 23:26:30,988 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:26:30,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:26:30,989 INFO L82 PathProgramCache]: Analyzing trace with hash 582328143, now seen corresponding path program 1 times [2020-11-29 23:26:30,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:26:30,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198005994] [2020-11-29 23:26:30,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:26:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:26:31,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1635 backedges. 1194 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2020-11-29 23:26:31,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198005994] [2020-11-29 23:26:31,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:26:31,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:26:31,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934524716] [2020-11-29 23:26:31,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:26:31,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:26:31,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:26:31,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:26:31,649 INFO L87 Difference]: Start difference. First operand 12569 states and 13642 transitions. Second operand 3 states. [2020-11-29 23:26:32,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:26:32,985 INFO L93 Difference]: Finished difference Result 25516 states and 27676 transitions. [2020-11-29 23:26:32,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:26:32,986 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 709 [2020-11-29 23:26:32,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:26:32,999 INFO L225 Difference]: With dead ends: 25516 [2020-11-29 23:26:32,999 INFO L226 Difference]: Without dead ends: 12949 [2020-11-29 23:26:33,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:26:33,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12949 states. [2020-11-29 23:26:33,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12949 to 11649. [2020-11-29 23:26:33,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11649 states. [2020-11-29 23:26:33,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11649 states to 11649 states and 12582 transitions. [2020-11-29 23:26:33,157 INFO L78 Accepts]: Start accepts. Automaton has 11649 states and 12582 transitions. Word has length 709 [2020-11-29 23:26:33,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:26:33,157 INFO L481 AbstractCegarLoop]: Abstraction has 11649 states and 12582 transitions. [2020-11-29 23:26:33,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:26:33,157 INFO L276 IsEmpty]: Start isEmpty. Operand 11649 states and 12582 transitions. [2020-11-29 23:26:33,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2020-11-29 23:26:33,174 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:26:33,175 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 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, 1, 1, 1] [2020-11-29 23:26:33,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-11-29 23:26:33,175 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:26:33,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:26:33,176 INFO L82 PathProgramCache]: Analyzing trace with hash -819393318, now seen corresponding path program 1 times [2020-11-29 23:26:33,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:26:33,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574180565] [2020-11-29 23:26:33,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:26:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:26:34,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1634 backedges. 1177 proven. 0 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2020-11-29 23:26:34,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574180565] [2020-11-29 23:26:34,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:26:34,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:26:34,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090835006] [2020-11-29 23:26:34,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:26:34,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:26:34,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:26:34,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:26:34,241 INFO L87 Difference]: Start difference. First operand 11649 states and 12582 transitions. Second operand 4 states. [2020-11-29 23:26:36,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:26:36,555 INFO L93 Difference]: Finished difference Result 25887 states and 27939 transitions. [2020-11-29 23:26:36,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:26:36,557 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 710 [2020-11-29 23:26:36,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:26:36,570 INFO L225 Difference]: With dead ends: 25887 [2020-11-29 23:26:36,571 INFO L226 Difference]: Without dead ends: 13872 [2020-11-29 23:26:36,577 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 [2020-11-29 23:26:36,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13872 states. [2020-11-29 23:26:36,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13872 to 11281. [2020-11-29 23:26:36,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11281 states. [2020-11-29 23:26:36,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11281 states to 11281 states and 12180 transitions. [2020-11-29 23:26:36,717 INFO L78 Accepts]: Start accepts. Automaton has 11281 states and 12180 transitions. Word has length 710 [2020-11-29 23:26:36,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:26:36,717 INFO L481 AbstractCegarLoop]: Abstraction has 11281 states and 12180 transitions. [2020-11-29 23:26:36,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:26:36,717 INFO L276 IsEmpty]: Start isEmpty. Operand 11281 states and 12180 transitions. [2020-11-29 23:26:36,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2020-11-29 23:26:36,729 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:26:36,729 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, 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, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:26:36,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-11-29 23:26:36,729 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:26:36,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:26:36,730 INFO L82 PathProgramCache]: Analyzing trace with hash 2052908453, now seen corresponding path program 1 times [2020-11-29 23:26:36,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:26:36,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701078626] [2020-11-29 23:26:36,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:26:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:26:37,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2126 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 1938 trivial. 0 not checked. [2020-11-29 23:26:37,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701078626] [2020-11-29 23:26:37,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:26:37,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:26:37,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263431587] [2020-11-29 23:26:37,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:26:37,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:26:37,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:26:37,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:26:37,599 INFO L87 Difference]: Start difference. First operand 11281 states and 12180 transitions. Second operand 3 states. [2020-11-29 23:26:38,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:26:38,813 INFO L93 Difference]: Finished difference Result 12939 states and 13933 transitions. [2020-11-29 23:26:38,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:26:38,814 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 792 [2020-11-29 23:26:38,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:26:38,827 INFO L225 Difference]: With dead ends: 12939 [2020-11-29 23:26:38,827 INFO L226 Difference]: Without dead ends: 12937 [2020-11-29 23:26:38,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:26:38,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12937 states. [2020-11-29 23:26:38,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12937 to 11097. [2020-11-29 23:26:38,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11097 states. [2020-11-29 23:26:38,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11097 states to 11097 states and 11978 transitions. [2020-11-29 23:26:38,967 INFO L78 Accepts]: Start accepts. Automaton has 11097 states and 11978 transitions. Word has length 792 [2020-11-29 23:26:38,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:26:38,968 INFO L481 AbstractCegarLoop]: Abstraction has 11097 states and 11978 transitions. [2020-11-29 23:26:38,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:26:38,968 INFO L276 IsEmpty]: Start isEmpty. Operand 11097 states and 11978 transitions. [2020-11-29 23:26:38,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2020-11-29 23:26:38,981 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:26:38,981 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, 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, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 23:26:38,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-11-29 23:26:38,982 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:26:38,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:26:38,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1635187278, now seen corresponding path program 1 times [2020-11-29 23:26:38,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:26:38,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250446795] [2020-11-29 23:26:38,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:26:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:26:40,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2126 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 1938 trivial. 0 not checked. [2020-11-29 23:26:40,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250446795] [2020-11-29 23:26:40,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:26:40,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:26:40,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297216784] [2020-11-29 23:26:40,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 23:26:40,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:26:40,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:26:40,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:26:40,104 INFO L87 Difference]: Start difference. First operand 11097 states and 11978 transitions. Second operand 3 states. [2020-11-29 23:26:40,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:26:40,848 INFO L93 Difference]: Finished difference Result 21449 states and 23185 transitions. [2020-11-29 23:26:40,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:26:40,849 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 797 [2020-11-29 23:26:40,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:26:40,850 INFO L225 Difference]: With dead ends: 21449 [2020-11-29 23:26:40,850 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 23:26:40,856 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:26:40,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 23:26:40,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 23:26:40,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 23:26:40,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 23:26:40,857 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 797 [2020-11-29 23:26:40,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:26:40,858 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:26:40,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 23:26:40,858 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:26:40,858 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 23:26:40,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-11-29 23:26:40,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 23:26:42,261 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 630 DAG size of output: 461 [2020-11-29 23:26:43,346 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 630 DAG size of output: 461 [2020-11-29 23:26:48,139 WARN L193 SmtUtils]: Spent 4.78 s on a formula simplification. DAG size of input: 435 DAG size of output: 101 [2020-11-29 23:26:52,639 WARN L193 SmtUtils]: Spent 4.50 s on a formula simplification. DAG size of input: 435 DAG size of output: 101 [2020-11-29 23:26:52,643 INFO L274 CegarLoopResult]: For program point L498(lines 498 509) no Hoare annotation was computed. [2020-11-29 23:26:52,644 INFO L274 CegarLoopResult]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,644 INFO L274 CegarLoopResult]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2020-11-29 23:26:52,644 INFO L274 CegarLoopResult]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,644 INFO L274 CegarLoopResult]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,644 INFO L274 CegarLoopResult]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,644 INFO L274 CegarLoopResult]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,644 INFO L274 CegarLoopResult]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,644 INFO L274 CegarLoopResult]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,644 INFO L274 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-11-29 23:26:52,644 INFO L274 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-11-29 23:26:52,645 INFO L274 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-11-29 23:26:52,645 INFO L274 CegarLoopResult]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,645 INFO L274 CegarLoopResult]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,645 INFO L274 CegarLoopResult]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,645 INFO L274 CegarLoopResult]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,645 INFO L274 CegarLoopResult]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,645 INFO L274 CegarLoopResult]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,645 INFO L274 CegarLoopResult]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,645 INFO L274 CegarLoopResult]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,645 INFO L274 CegarLoopResult]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,645 INFO L274 CegarLoopResult]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,645 INFO L274 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-11-29 23:26:52,645 INFO L274 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-11-29 23:26:52,646 INFO L274 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-11-29 23:26:52,646 INFO L274 CegarLoopResult]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,646 INFO L274 CegarLoopResult]: For program point L768(lines 768 778) no Hoare annotation was computed. [2020-11-29 23:26:52,646 INFO L274 CegarLoopResult]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2020-11-29 23:26:52,646 INFO L274 CegarLoopResult]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,646 INFO L274 CegarLoopResult]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,646 INFO L274 CegarLoopResult]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,646 INFO L274 CegarLoopResult]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,646 INFO L274 CegarLoopResult]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,646 INFO L274 CegarLoopResult]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,646 INFO L274 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-11-29 23:26:52,646 INFO L274 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-11-29 23:26:52,646 INFO L274 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-11-29 23:26:52,646 INFO L274 CegarLoopResult]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,647 INFO L274 CegarLoopResult]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,647 INFO L274 CegarLoopResult]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,647 INFO L270 CegarLoopResult]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse16 (<= ~a29~0 130)) (.cse12 (= ~a25~0 13)) (.cse6 (= ~a25~0 12)) (.cse1 (<= ~a25~0 9)) (.cse10 (<= ~a23~0 262)) (.cse15 (<= ~a25~0 10)) (.cse3 (<= (+ ~a23~0 43) 0)) (.cse7 (= ~a4~0 1))) (let ((.cse5 (<= ~a29~0 206678)) (.cse8 (or (and .cse12 .cse10 .cse7) (and .cse6 .cse10 .cse7) (and .cse1 (<= (+ ~a29~0 275824) 0) .cse3) (and .cse15 .cse10 (<= ~a29~0 245) .cse7) (and .cse15 .cse3 .cse7))) (.cse2 (< 277 ~a29~0)) (.cse14 (<= ~a29~0 220)) (.cse13 (= ~a25~0 10)) (.cse9 (= ~a25~0 11)) (.cse17 (or (and .cse16 .cse6 .cse7) (and .cse15 .cse16 .cse7))) (.cse11 (<= ~a29~0 275)) (.cse0 (= ~a4~0 0)) (.cse4 (<= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse7 .cse4) (and .cse8 .cse4) (and .cse9 .cse7 .cse4) (and .cse0 .cse6 .cse10 .cse4) (and .cse11 .cse1 .cse7 .cse4) (and .cse5 .cse12 .cse7 .cse4) (and .cse13 .cse8) (and .cse11 .cse13 (<= 161 ~a23~0) .cse7 .cse4) (and .cse1 .cse2 .cse7 .cse4) (and .cse6 .cse3 .cse14 .cse4) (and .cse0 .cse13 .cse10 .cse14 .cse4) (and .cse15 (<= 381712 ~a29~0) .cse7 .cse4) (and .cse0 .cse12 .cse10 .cse4) (and .cse11 .cse9 .cse0 .cse10 .cse4) (and .cse0 .cse13 .cse3 .cse4) (and .cse1 .cse10 .cse7) (and (<= 312 ~a23~0) .cse1 .cse4 .cse7) (and .cse0 .cse1 .cse10 .cse14 .cse4) (and .cse0 .cse13 .cse16 .cse4) (and .cse9 .cse16 .cse3 .cse4) (and .cse13 (<= 307 ~a23~0) .cse4 .cse7) (and .cse1 .cse17) (and .cse9 .cse0 .cse3 .cse4) (and .cse9 .cse10 .cse7) (and .cse10 .cse17) (and .cse11 .cse0 .cse6 .cse4) (and .cse12 .cse16 .cse10 .cse7)))) [2020-11-29 23:26:52,647 INFO L274 CegarLoopResult]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,647 INFO L274 CegarLoopResult]: For program point L705(lines 705 715) no Hoare annotation was computed. [2020-11-29 23:26:52,647 INFO L274 CegarLoopResult]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2020-11-29 23:26:52,647 INFO L274 CegarLoopResult]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,647 INFO L274 CegarLoopResult]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,648 INFO L274 CegarLoopResult]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,648 INFO L274 CegarLoopResult]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,648 INFO L274 CegarLoopResult]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,648 INFO L274 CegarLoopResult]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,648 INFO L274 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-11-29 23:26:52,648 INFO L274 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-11-29 23:26:52,648 INFO L274 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-11-29 23:26:52,648 INFO L277 CegarLoopResult]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2020-11-29 23:26:52,648 INFO L274 CegarLoopResult]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,648 INFO L274 CegarLoopResult]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,648 INFO L274 CegarLoopResult]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,648 INFO L274 CegarLoopResult]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,648 INFO L274 CegarLoopResult]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,648 INFO L274 CegarLoopResult]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,649 INFO L274 CegarLoopResult]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,649 INFO L274 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-11-29 23:26:52,649 INFO L274 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-11-29 23:26:52,649 INFO L274 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-11-29 23:26:52,649 INFO L274 CegarLoopResult]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,649 INFO L274 CegarLoopResult]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,649 INFO L274 CegarLoopResult]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,649 INFO L274 CegarLoopResult]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,649 INFO L274 CegarLoopResult]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,649 INFO L274 CegarLoopResult]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,649 INFO L274 CegarLoopResult]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,649 INFO L274 CegarLoopResult]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,649 INFO L274 CegarLoopResult]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,649 INFO L274 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-11-29 23:26:52,649 INFO L274 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-11-29 23:26:52,650 INFO L274 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-11-29 23:26:52,650 INFO L274 CegarLoopResult]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,650 INFO L270 CegarLoopResult]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse16 (<= ~a29~0 130)) (.cse12 (= ~a25~0 13)) (.cse6 (= ~a25~0 12)) (.cse1 (<= ~a25~0 9)) (.cse10 (<= ~a23~0 262)) (.cse15 (<= ~a25~0 10)) (.cse3 (<= (+ ~a23~0 43) 0)) (.cse7 (= ~a4~0 1))) (let ((.cse5 (<= ~a29~0 206678)) (.cse8 (or (and .cse12 .cse10 .cse7) (and .cse6 .cse10 .cse7) (and .cse1 (<= (+ ~a29~0 275824) 0) .cse3) (and .cse15 .cse10 (<= ~a29~0 245) .cse7) (and .cse15 .cse3 .cse7))) (.cse2 (< 277 ~a29~0)) (.cse14 (<= ~a29~0 220)) (.cse13 (= ~a25~0 10)) (.cse9 (= ~a25~0 11)) (.cse17 (or (and .cse16 .cse6 .cse7) (and .cse15 .cse16 .cse7))) (.cse11 (<= ~a29~0 275)) (.cse0 (= ~a4~0 0)) (.cse4 (<= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse7 .cse4) (and .cse8 .cse4) (and .cse9 .cse7 .cse4) (and .cse0 .cse6 .cse10 .cse4) (and .cse11 .cse1 .cse7 .cse4) (and .cse5 .cse12 .cse7 .cse4) (and .cse13 .cse8) (and .cse11 .cse13 (<= 161 ~a23~0) .cse7 .cse4) (and .cse1 .cse2 .cse7 .cse4) (and .cse6 .cse3 .cse14 .cse4) (and .cse0 .cse13 .cse10 .cse14 .cse4) (and .cse15 (<= 381712 ~a29~0) .cse7 .cse4) (and .cse0 .cse12 .cse10 .cse4) (and .cse11 .cse9 .cse0 .cse10 .cse4) (and .cse0 .cse13 .cse3 .cse4) (and .cse1 .cse10 .cse7) (and (<= 312 ~a23~0) .cse1 .cse4 .cse7) (and .cse0 .cse1 .cse10 .cse14 .cse4) (and .cse0 .cse13 .cse16 .cse4) (and .cse9 .cse16 .cse3 .cse4) (and .cse13 (<= 307 ~a23~0) .cse4 .cse7) (and .cse1 .cse17) (and .cse9 .cse0 .cse3 .cse4) (and .cse9 .cse10 .cse7) (and .cse10 .cse17) (and .cse11 .cse0 .cse6 .cse4) (and .cse12 .cse16 .cse10 .cse7)))) [2020-11-29 23:26:52,650 INFO L274 CegarLoopResult]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,650 INFO L274 CegarLoopResult]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,650 INFO L274 CegarLoopResult]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,650 INFO L274 CegarLoopResult]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,650 INFO L274 CegarLoopResult]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,650 INFO L274 CegarLoopResult]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,651 INFO L274 CegarLoopResult]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,651 INFO L274 CegarLoopResult]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,651 INFO L274 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-11-29 23:26:52,651 INFO L274 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-11-29 23:26:52,651 INFO L274 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-11-29 23:26:52,651 INFO L274 CegarLoopResult]: For program point L980(lines 980 990) no Hoare annotation was computed. [2020-11-29 23:26:52,651 INFO L274 CegarLoopResult]: For program point L914(lines 914 924) no Hoare annotation was computed. [2020-11-29 23:26:52,651 INFO L274 CegarLoopResult]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2020-11-29 23:26:52,651 INFO L274 CegarLoopResult]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2020-11-29 23:26:52,651 INFO L274 CegarLoopResult]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,651 INFO L274 CegarLoopResult]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,651 INFO L274 CegarLoopResult]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,651 INFO L274 CegarLoopResult]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,651 INFO L274 CegarLoopResult]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,651 INFO L274 CegarLoopResult]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,652 INFO L274 CegarLoopResult]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,652 INFO L274 CegarLoopResult]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,652 INFO L274 CegarLoopResult]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,652 INFO L274 CegarLoopResult]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,652 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 23:26:52,652 INFO L274 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-11-29 23:26:52,652 INFO L274 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-11-29 23:26:52,652 INFO L274 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-11-29 23:26:52,652 INFO L274 CegarLoopResult]: For program point L1049(line 1049) no Hoare annotation was computed. [2020-11-29 23:26:52,652 INFO L274 CegarLoopResult]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,652 INFO L274 CegarLoopResult]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,652 INFO L274 CegarLoopResult]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,652 INFO L274 CegarLoopResult]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,652 INFO L274 CegarLoopResult]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,652 INFO L274 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-11-29 23:26:52,653 INFO L274 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-11-29 23:26:52,653 INFO L274 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-11-29 23:26:52,653 INFO L274 CegarLoopResult]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,653 INFO L274 CegarLoopResult]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,653 INFO L274 CegarLoopResult]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,653 INFO L274 CegarLoopResult]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,653 INFO L274 CegarLoopResult]: For program point L525(lines 525 535) no Hoare annotation was computed. [2020-11-29 23:26:52,653 INFO L274 CegarLoopResult]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2020-11-29 23:26:52,653 INFO L274 CegarLoopResult]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,653 INFO L274 CegarLoopResult]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,653 INFO L274 CegarLoopResult]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,653 INFO L274 CegarLoopResult]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,653 INFO L274 CegarLoopResult]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,653 INFO L274 CegarLoopResult]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,653 INFO L274 CegarLoopResult]: For program point L658(lines 658 667) no Hoare annotation was computed. [2020-11-29 23:26:52,654 INFO L274 CegarLoopResult]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2020-11-29 23:26:52,654 INFO L274 CegarLoopResult]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,654 INFO L274 CegarLoopResult]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,654 INFO L274 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-11-29 23:26:52,654 INFO L274 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-11-29 23:26:52,654 INFO L274 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-11-29 23:26:52,654 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 23:26:52,654 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 23:26:52,654 INFO L274 CegarLoopResult]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,654 INFO L274 CegarLoopResult]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,654 INFO L274 CegarLoopResult]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,654 INFO L274 CegarLoopResult]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,654 INFO L274 CegarLoopResult]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,654 INFO L274 CegarLoopResult]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,655 INFO L274 CegarLoopResult]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,655 INFO L274 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-11-29 23:26:52,655 INFO L274 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-11-29 23:26:52,655 INFO L274 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-11-29 23:26:52,655 INFO L274 CegarLoopResult]: For program point L926(lines 926 936) no Hoare annotation was computed. [2020-11-29 23:26:52,655 INFO L274 CegarLoopResult]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2020-11-29 23:26:52,655 INFO L274 CegarLoopResult]: For program point L728(lines 728 740) no Hoare annotation was computed. [2020-11-29 23:26:52,655 INFO L274 CegarLoopResult]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2020-11-29 23:26:52,655 INFO L274 CegarLoopResult]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,655 INFO L274 CegarLoopResult]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,655 INFO L274 CegarLoopResult]: For program point L597(lines 597 607) no Hoare annotation was computed. [2020-11-29 23:26:52,655 INFO L274 CegarLoopResult]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2020-11-29 23:26:52,655 INFO L274 CegarLoopResult]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,655 INFO L274 CegarLoopResult]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,655 INFO L274 CegarLoopResult]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,660 INFO L274 CegarLoopResult]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,660 INFO L274 CegarLoopResult]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,660 INFO L274 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-11-29 23:26:52,660 INFO L274 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-11-29 23:26:52,661 INFO L274 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-11-29 23:26:52,661 INFO L274 CegarLoopResult]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,661 INFO L274 CegarLoopResult]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,661 INFO L274 CegarLoopResult]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,661 INFO L274 CegarLoopResult]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,661 INFO L274 CegarLoopResult]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,662 INFO L274 CegarLoopResult]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,662 INFO L274 CegarLoopResult]: For program point L205(line 205) no Hoare annotation was computed. [2020-11-29 23:26:52,662 INFO L274 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-11-29 23:26:52,662 INFO L274 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-11-29 23:26:52,662 INFO L274 CegarLoopResult]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,662 INFO L274 CegarLoopResult]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,662 INFO L274 CegarLoopResult]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,663 INFO L274 CegarLoopResult]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,663 INFO L274 CegarLoopResult]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,663 INFO L274 CegarLoopResult]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,663 INFO L274 CegarLoopResult]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,663 INFO L274 CegarLoopResult]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,664 INFO L274 CegarLoopResult]: For program point L208(line 208) no Hoare annotation was computed. [2020-11-29 23:26:52,664 INFO L274 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-11-29 23:26:52,664 INFO L274 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-11-29 23:26:52,664 INFO L274 CegarLoopResult]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,664 INFO L274 CegarLoopResult]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,664 INFO L274 CegarLoopResult]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,664 INFO L274 CegarLoopResult]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,665 INFO L274 CegarLoopResult]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,665 INFO L274 CegarLoopResult]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,665 INFO L274 CegarLoopResult]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,665 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 23:26:52,665 INFO L274 CegarLoopResult]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,665 INFO L274 CegarLoopResult]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,666 INFO L274 CegarLoopResult]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,666 INFO L274 CegarLoopResult]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,666 INFO L274 CegarLoopResult]: For program point L409(lines 409 420) no Hoare annotation was computed. [2020-11-29 23:26:52,666 INFO L274 CegarLoopResult]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2020-11-29 23:26:52,666 INFO L274 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-11-29 23:26:52,666 INFO L274 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-11-29 23:26:52,666 INFO L274 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-11-29 23:26:52,667 INFO L274 CegarLoopResult]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,667 INFO L274 CegarLoopResult]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,667 INFO L274 CegarLoopResult]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,667 INFO L274 CegarLoopResult]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,667 INFO L274 CegarLoopResult]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,667 INFO L274 CegarLoopResult]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,668 INFO L274 CegarLoopResult]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,668 INFO L274 CegarLoopResult]: For program point L214(line 214) no Hoare annotation was computed. [2020-11-29 23:26:52,668 INFO L274 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-11-29 23:26:52,668 INFO L274 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-11-29 23:26:52,668 INFO L274 CegarLoopResult]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,668 INFO L274 CegarLoopResult]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,668 INFO L274 CegarLoopResult]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,669 INFO L274 CegarLoopResult]: For program point L876(lines 876 885) no Hoare annotation was computed. [2020-11-29 23:26:52,669 INFO L274 CegarLoopResult]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2020-11-29 23:26:52,669 INFO L274 CegarLoopResult]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,669 INFO L274 CegarLoopResult]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,669 INFO L274 CegarLoopResult]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,669 INFO L274 CegarLoopResult]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,670 INFO L274 CegarLoopResult]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,670 INFO L274 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-11-29 23:26:52,670 INFO L274 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-11-29 23:26:52,670 INFO L274 CegarLoopResult]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,670 INFO L274 CegarLoopResult]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,670 INFO L274 CegarLoopResult]: For program point L614(lines 614 624) no Hoare annotation was computed. [2020-11-29 23:26:52,670 INFO L274 CegarLoopResult]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2020-11-29 23:26:52,671 INFO L274 CegarLoopResult]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,671 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 23:26:52,671 INFO L274 CegarLoopResult]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,672 INFO L274 CegarLoopResult]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,672 INFO L274 CegarLoopResult]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,672 INFO L274 CegarLoopResult]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,673 INFO L274 CegarLoopResult]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,673 INFO L274 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-11-29 23:26:52,673 INFO L274 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-11-29 23:26:52,673 INFO L274 CegarLoopResult]: For program point L815(lines 815 825) no Hoare annotation was computed. [2020-11-29 23:26:52,673 INFO L274 CegarLoopResult]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2020-11-29 23:26:52,673 INFO L274 CegarLoopResult]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,673 INFO L274 CegarLoopResult]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,673 INFO L274 CegarLoopResult]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,673 INFO L274 CegarLoopResult]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,673 INFO L274 CegarLoopResult]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,674 INFO L274 CegarLoopResult]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,674 INFO L274 CegarLoopResult]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,674 INFO L274 CegarLoopResult]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,674 INFO L274 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-11-29 23:26:52,674 INFO L274 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-11-29 23:26:52,674 INFO L274 CegarLoopResult]: For program point L950(lines 950 962) no Hoare annotation was computed. [2020-11-29 23:26:52,675 INFO L274 CegarLoopResult]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2020-11-29 23:26:52,675 INFO L274 CegarLoopResult]: For program point L488(lines 488 496) no Hoare annotation was computed. [2020-11-29 23:26:52,675 INFO L274 CegarLoopResult]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2020-11-29 23:26:52,675 INFO L274 CegarLoopResult]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,675 INFO L274 CegarLoopResult]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,675 INFO L274 CegarLoopResult]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,675 INFO L274 CegarLoopResult]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,675 INFO L274 CegarLoopResult]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,675 INFO L274 CegarLoopResult]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,675 INFO L274 CegarLoopResult]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,675 INFO L274 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-11-29 23:26:52,675 INFO L274 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-11-29 23:26:52,675 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 23:26:52,675 INFO L274 CegarLoopResult]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,675 INFO L274 CegarLoopResult]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,676 INFO L274 CegarLoopResult]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,676 INFO L274 CegarLoopResult]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,676 INFO L274 CegarLoopResult]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,676 INFO L274 CegarLoopResult]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,676 INFO L274 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-11-29 23:26:52,676 INFO L274 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-11-29 23:26:52,676 INFO L274 CegarLoopResult]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,676 INFO L274 CegarLoopResult]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,676 INFO L274 CegarLoopResult]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,676 INFO L274 CegarLoopResult]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,676 INFO L274 CegarLoopResult]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,676 INFO L274 CegarLoopResult]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,676 INFO L274 CegarLoopResult]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,676 INFO L274 CegarLoopResult]: For program point L33(lines 33 35) no Hoare annotation was computed. [2020-11-29 23:26:52,676 INFO L274 CegarLoopResult]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2020-11-29 23:26:52,676 INFO L274 CegarLoopResult]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,677 INFO L274 CegarLoopResult]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,677 INFO L274 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-11-29 23:26:52,677 INFO L274 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-11-29 23:26:52,677 INFO L274 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-11-29 23:26:52,677 INFO L274 CegarLoopResult]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2020-11-29 23:26:52,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:26:52 BoogieIcfgContainer [2020-11-29 23:26:52,749 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:26:52,750 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:26:52,759 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:26:52,766 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:26:52,766 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:25:19" (3/4) ... [2020-11-29 23:26:52,770 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 23:26:52,814 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 23:26:52,817 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 23:26:52,819 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:26:52,822 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:26:53,112 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2875f3d5-35b1-448a-a46c-ca13ffd77c92/bin/uautomizer/witness.graphml [2020-11-29 23:26:53,113 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:26:53,114 INFO L168 Benchmark]: Toolchain (without parser) took 98200.65 ms. Allocated memory was 83.9 MB in the beginning and 2.0 GB in the end (delta: 1.9 GB). Free memory was 48.3 MB in the beginning and 807.5 MB in the end (delta: -759.2 MB). Peak memory consumption was 1.2 GB. Max. memory is 16.1 GB. [2020-11-29 23:26:53,115 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 83.9 MB. Free memory was 57.0 MB in the beginning and 57.0 MB in the end (delta: 24.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:26:53,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1226.98 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 48.2 MB in the beginning and 46.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:26:53,116 INFO L168 Benchmark]: Boogie Procedure Inliner took 198.38 ms. Allocated memory is still 102.8 MB. Free memory was 46.7 MB in the beginning and 63.0 MB in the end (delta: -16.3 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:26:53,116 INFO L168 Benchmark]: Boogie Preprocessor took 139.97 ms. Allocated memory is still 102.8 MB. Free memory was 63.0 MB in the beginning and 52.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:26:53,117 INFO L168 Benchmark]: RCFGBuilder took 2817.33 ms. Allocated memory was 102.8 MB in the beginning and 142.6 MB in the end (delta: 39.8 MB). Free memory was 52.8 MB in the beginning and 87.0 MB in the end (delta: -34.1 MB). Peak memory consumption was 44.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:26:53,118 INFO L168 Benchmark]: TraceAbstraction took 93444.65 ms. Allocated memory was 142.6 MB in the beginning and 2.0 GB in the end (delta: 1.9 GB). Free memory was 87.0 MB in the beginning and 833.7 MB in the end (delta: -746.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 16.1 GB. [2020-11-29 23:26:53,118 INFO L168 Benchmark]: Witness Printer took 362.87 ms. Allocated memory is still 2.0 GB. Free memory was 833.7 MB in the beginning and 807.5 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-29 23:26:53,121 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 83.9 MB. Free memory was 57.0 MB in the beginning and 57.0 MB in the end (delta: 24.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1226.98 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 48.2 MB in the beginning and 46.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 198.38 ms. Allocated memory is still 102.8 MB. Free memory was 46.7 MB in the beginning and 63.0 MB in the end (delta: -16.3 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 139.97 ms. Allocated memory is still 102.8 MB. Free memory was 63.0 MB in the beginning and 52.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2817.33 ms. Allocated memory was 102.8 MB in the beginning and 142.6 MB in the end (delta: 39.8 MB). Free memory was 52.8 MB in the beginning and 87.0 MB in the end (delta: -34.1 MB). Peak memory consumption was 44.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 93444.65 ms. Allocated memory was 142.6 MB in the beginning and 2.0 GB in the end (delta: 1.9 GB). Free memory was 87.0 MB in the beginning and 833.7 MB in the end (delta: -746.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 16.1 GB. * Witness Printer took 362.87 ms. Allocated memory is still 2.0 GB. Free memory was 833.7 MB in the beginning and 807.5 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 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: ((((((((((((((((((((((((((((((a4 == 0 && a25 <= 9) && 277 < a29) && a23 + 43 <= 0) && a8 <= 15) || (((a29 <= 206678 && a25 == 12) && a4 == 1) && a8 <= 15)) || (((((((a25 == 13 && a23 <= 262) && a4 == 1) || ((a25 == 12 && a23 <= 262) && a4 == 1)) || ((a25 <= 9 && a29 + 275824 <= 0) && a23 + 43 <= 0)) || (((a25 <= 10 && a23 <= 262) && a29 <= 245) && a4 == 1)) || ((a25 <= 10 && a23 + 43 <= 0) && a4 == 1)) && a8 <= 15)) || ((a25 == 11 && a4 == 1) && a8 <= 15)) || (((a4 == 0 && a25 == 12) && a23 <= 262) && a8 <= 15)) || (((a29 <= 275 && a25 <= 9) && a4 == 1) && a8 <= 15)) || (((a29 <= 206678 && a25 == 13) && a4 == 1) && a8 <= 15)) || (a25 == 10 && ((((((a25 == 13 && a23 <= 262) && a4 == 1) || ((a25 == 12 && a23 <= 262) && a4 == 1)) || ((a25 <= 9 && a29 + 275824 <= 0) && a23 + 43 <= 0)) || (((a25 <= 10 && a23 <= 262) && a29 <= 245) && a4 == 1)) || ((a25 <= 10 && a23 + 43 <= 0) && a4 == 1)))) || ((((a29 <= 275 && a25 == 10) && 161 <= a23) && a4 == 1) && a8 <= 15)) || (((a25 <= 9 && 277 < a29) && a4 == 1) && a8 <= 15)) || (((a25 == 12 && a23 + 43 <= 0) && a29 <= 220) && a8 <= 15)) || ((((a4 == 0 && a25 == 10) && a23 <= 262) && a29 <= 220) && a8 <= 15)) || (((a25 <= 10 && 381712 <= a29) && a4 == 1) && a8 <= 15)) || (((a4 == 0 && a25 == 13) && a23 <= 262) && a8 <= 15)) || ((((a29 <= 275 && a25 == 11) && a4 == 0) && a23 <= 262) && a8 <= 15)) || (((a4 == 0 && a25 == 10) && a23 + 43 <= 0) && a8 <= 15)) || ((a25 <= 9 && a23 <= 262) && a4 == 1)) || (((312 <= a23 && a25 <= 9) && a8 <= 15) && a4 == 1)) || ((((a4 == 0 && a25 <= 9) && a23 <= 262) && a29 <= 220) && a8 <= 15)) || (((a4 == 0 && a25 == 10) && a29 <= 130) && a8 <= 15)) || (((a25 == 11 && a29 <= 130) && a23 + 43 <= 0) && a8 <= 15)) || (((a25 == 10 && 307 <= a23) && a8 <= 15) && a4 == 1)) || (a25 <= 9 && (((a29 <= 130 && a25 == 12) && a4 == 1) || ((a25 <= 10 && a29 <= 130) && a4 == 1)))) || (((a25 == 11 && a4 == 0) && a23 + 43 <= 0) && a8 <= 15)) || ((a25 == 11 && a23 <= 262) && a4 == 1)) || (a23 <= 262 && (((a29 <= 130 && a25 == 12) && a4 == 1) || ((a25 <= 10 && a29 <= 130) && a4 == 1)))) || (((a29 <= 275 && a4 == 0) && a25 == 12) && a8 <= 15)) || (((a25 == 13 && a29 <= 130) && a23 <= 262) && a4 == 1) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((a4 == 0 && a25 <= 9) && 277 < a29) && a23 + 43 <= 0) && a8 <= 15) || (((a29 <= 206678 && a25 == 12) && a4 == 1) && a8 <= 15)) || (((((((a25 == 13 && a23 <= 262) && a4 == 1) || ((a25 == 12 && a23 <= 262) && a4 == 1)) || ((a25 <= 9 && a29 + 275824 <= 0) && a23 + 43 <= 0)) || (((a25 <= 10 && a23 <= 262) && a29 <= 245) && a4 == 1)) || ((a25 <= 10 && a23 + 43 <= 0) && a4 == 1)) && a8 <= 15)) || ((a25 == 11 && a4 == 1) && a8 <= 15)) || (((a4 == 0 && a25 == 12) && a23 <= 262) && a8 <= 15)) || (((a29 <= 275 && a25 <= 9) && a4 == 1) && a8 <= 15)) || (((a29 <= 206678 && a25 == 13) && a4 == 1) && a8 <= 15)) || (a25 == 10 && ((((((a25 == 13 && a23 <= 262) && a4 == 1) || ((a25 == 12 && a23 <= 262) && a4 == 1)) || ((a25 <= 9 && a29 + 275824 <= 0) && a23 + 43 <= 0)) || (((a25 <= 10 && a23 <= 262) && a29 <= 245) && a4 == 1)) || ((a25 <= 10 && a23 + 43 <= 0) && a4 == 1)))) || ((((a29 <= 275 && a25 == 10) && 161 <= a23) && a4 == 1) && a8 <= 15)) || (((a25 <= 9 && 277 < a29) && a4 == 1) && a8 <= 15)) || (((a25 == 12 && a23 + 43 <= 0) && a29 <= 220) && a8 <= 15)) || ((((a4 == 0 && a25 == 10) && a23 <= 262) && a29 <= 220) && a8 <= 15)) || (((a25 <= 10 && 381712 <= a29) && a4 == 1) && a8 <= 15)) || (((a4 == 0 && a25 == 13) && a23 <= 262) && a8 <= 15)) || ((((a29 <= 275 && a25 == 11) && a4 == 0) && a23 <= 262) && a8 <= 15)) || (((a4 == 0 && a25 == 10) && a23 + 43 <= 0) && a8 <= 15)) || ((a25 <= 9 && a23 <= 262) && a4 == 1)) || (((312 <= a23 && a25 <= 9) && a8 <= 15) && a4 == 1)) || ((((a4 == 0 && a25 <= 9) && a23 <= 262) && a29 <= 220) && a8 <= 15)) || (((a4 == 0 && a25 == 10) && a29 <= 130) && a8 <= 15)) || (((a25 == 11 && a29 <= 130) && a23 + 43 <= 0) && a8 <= 15)) || (((a25 == 10 && 307 <= a23) && a8 <= 15) && a4 == 1)) || (a25 <= 9 && (((a29 <= 130 && a25 == 12) && a4 == 1) || ((a25 <= 10 && a29 <= 130) && a4 == 1)))) || (((a25 == 11 && a4 == 0) && a23 + 43 <= 0) && a8 <= 15)) || ((a25 == 11 && a23 <= 262) && a4 == 1)) || (a23 <= 262 && (((a29 <= 130 && a25 == 12) && a4 == 1) || ((a25 <= 10 && a29 <= 130) && a4 == 1)))) || (((a29 <= 275 && a4 == 0) && a25 == 12) && a8 <= 15)) || (((a25 == 13 && a29 <= 130) && a23 <= 262) && a4 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 81.4s, OverallIterations: 29, TraceHistogramMax: 8, AutomataDifference: 55.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 11.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5630 SDtfs, 5763 SDslu, 918 SDs, 0 SdLazy, 24046 SolverSat, 2386 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 37.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2360 GetRequests, 2295 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18275occurred in iteration=21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.3s AutomataMinimizationTime, 29 MinimizatonAttempts, 37558 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 155 NumberOfFragments, 1015 HoareAnnotationTreeSize, 3 FomulaSimplifications, 729836 FormulaSimplificationTreeSizeReduction, 2.4s HoareSimplificationTime, 3 FomulaSimplificationsInter, 265484 FormulaSimplificationTreeSizeReductionInter, 9.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 12666 NumberOfCodeBlocks, 12666 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 12632 ConstructedInterpolants, 0 QuantifiedInterpolants, 19670022 SizeOfPredicates, 1 NumberOfNonLiveVariables, 3114 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 34 InterpolantComputations, 28 PerfectInterpolantSequences, 16398/17718 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...