./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label46.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label46.c -s /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/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 2291caba928db89f4f7b5c8ea69b5986b62c3d8c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:39:40,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:39:40,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:39:40,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:39:40,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:39:40,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:39:40,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:39:40,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:39:40,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:39:40,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:39:40,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:39:40,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:39:40,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:39:40,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:39:40,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:39:40,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:39:40,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:39:40,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:39:40,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:39:40,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:39:40,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:39:40,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:39:40,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:39:40,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:39:40,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:39:40,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:39:40,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:39:40,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:39:40,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:39:40,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:39:40,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:39:40,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:39:40,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:39:40,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:39:40,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:39:40,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:39:40,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:39:40,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:39:40,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:39:40,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:39:40,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:39:40,860 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:39:40,912 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:39:40,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:39:40,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:39:40,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:39:40,917 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:39:40,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:39:40,917 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:39:40,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:39:40,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:39:40,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:39:40,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:39:40,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:39:40,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:39:40,921 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:39:40,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:39:40,921 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:39:40,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:39:40,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:39:40,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:39:40,922 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:39:40,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:39:40,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:39:40,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:39:40,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:39:40,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:39:40,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:39:40,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:39:40,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:39:40,925 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:39:40,925 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_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2291caba928db89f4f7b5c8ea69b5986b62c3d8c [2020-12-01 15:39:41,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:39:41,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:39:41,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:39:41,298 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:39:41,303 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:39:41,305 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem11_label46.c [2020-12-01 15:39:41,411 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/data/86bf465dd/10281b5143ee46b7a6d78cd66c947380/FLAG2ad99e8d3 [2020-12-01 15:39:42,200 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:39:42,201 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/sv-benchmarks/c/eca-rers2012/Problem11_label46.c [2020-12-01 15:39:42,231 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/data/86bf465dd/10281b5143ee46b7a6d78cd66c947380/FLAG2ad99e8d3 [2020-12-01 15:39:42,364 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/data/86bf465dd/10281b5143ee46b7a6d78cd66c947380 [2020-12-01 15:39:42,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:39:42,372 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:39:42,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:39:42,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:39:42,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:39:42,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:39:42" (1/1) ... [2020-12-01 15:39:42,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@422fd73d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:42, skipping insertion in model container [2020-12-01 15:39:42,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:39:42" (1/1) ... [2020-12-01 15:39:42,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:39:42,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:39:43,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:39:43,198 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:39:43,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:39:43,459 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:39:43,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:43 WrapperNode [2020-12-01 15:39:43,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:39:43,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:39:43,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:39:43,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:39:43,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:43" (1/1) ... [2020-12-01 15:39:43,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:43" (1/1) ... [2020-12-01 15:39:43,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:39:43,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:39:43,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:39:43,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:39:43,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:43" (1/1) ... [2020-12-01 15:39:43,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:43" (1/1) ... [2020-12-01 15:39:43,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:43" (1/1) ... [2020-12-01 15:39:43,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:43" (1/1) ... [2020-12-01 15:39:43,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:43" (1/1) ... [2020-12-01 15:39:43,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:43" (1/1) ... [2020-12-01 15:39:43,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:43" (1/1) ... [2020-12-01 15:39:43,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:39:43,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:39:43,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:39:43,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:39:43,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:39:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:39:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:39:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:39:43,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:39:46,239 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:39:46,240 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 15:39:46,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:39:46 BoogieIcfgContainer [2020-12-01 15:39:46,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:39:46,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:39:46,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:39:46,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:39:46,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:39:42" (1/3) ... [2020-12-01 15:39:46,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60377d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:39:46, skipping insertion in model container [2020-12-01 15:39:46,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:39:43" (2/3) ... [2020-12-01 15:39:46,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60377d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:39:46, skipping insertion in model container [2020-12-01 15:39:46,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:39:46" (3/3) ... [2020-12-01 15:39:46,257 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label46.c [2020-12-01 15:39:46,273 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:39:46,282 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:39:46,294 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:39:46,329 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:39:46,329 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:39:46,330 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:39:46,330 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:39:46,330 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:39:46,330 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:39:46,330 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:39:46,331 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:39:46,357 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-12-01 15:39:46,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-01 15:39:46,374 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:39:46,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:39:46,376 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:39:46,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:46,384 INFO L82 PathProgramCache]: Analyzing trace with hash 531730986, now seen corresponding path program 1 times [2020-12-01 15:39:46,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:46,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158576821] [2020-12-01 15:39:46,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:39:46,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:39:46,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158576821] [2020-12-01 15:39:46,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:39:46,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:39:46,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033519980] [2020-12-01 15:39:46,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:39:46,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:39:46,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:39:46,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:39:46,935 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-12-01 15:39:48,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:39:48,856 INFO L93 Difference]: Finished difference Result 770 states and 1361 transitions. [2020-12-01 15:39:48,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:39:48,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2020-12-01 15:39:48,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:39:48,883 INFO L225 Difference]: With dead ends: 770 [2020-12-01 15:39:48,884 INFO L226 Difference]: Without dead ends: 422 [2020-12-01 15:39:48,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:39:48,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-12-01 15:39:49,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 412. [2020-12-01 15:39:49,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-12-01 15:39:49,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 626 transitions. [2020-12-01 15:39:49,025 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 626 transitions. Word has length 62 [2020-12-01 15:39:49,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:39:49,026 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 626 transitions. [2020-12-01 15:39:49,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:39:49,026 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 626 transitions. [2020-12-01 15:39:49,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-12-01 15:39:49,035 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:39:49,035 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:39:49,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:39:49,036 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:39:49,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:49,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1907136039, now seen corresponding path program 1 times [2020-12-01 15:39:49,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:49,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819361823] [2020-12-01 15:39:49,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:39:49,327 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:39:49,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819361823] [2020-12-01 15:39:49,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:39:49,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:39:49,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921152752] [2020-12-01 15:39:49,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:39:49,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:39:49,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:39:49,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:39:49,337 INFO L87 Difference]: Start difference. First operand 412 states and 626 transitions. Second operand 3 states. [2020-12-01 15:39:50,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:39:50,697 INFO L93 Difference]: Finished difference Result 1199 states and 1829 transitions. [2020-12-01 15:39:50,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:39:50,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2020-12-01 15:39:50,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:39:50,705 INFO L225 Difference]: With dead ends: 1199 [2020-12-01 15:39:50,706 INFO L226 Difference]: Without dead ends: 789 [2020-12-01 15:39:50,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:39:50,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2020-12-01 15:39:50,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 789. [2020-12-01 15:39:50,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2020-12-01 15:39:50,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1083 transitions. [2020-12-01 15:39:50,780 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1083 transitions. Word has length 128 [2020-12-01 15:39:50,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:39:50,781 INFO L481 AbstractCegarLoop]: Abstraction has 789 states and 1083 transitions. [2020-12-01 15:39:50,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:39:50,782 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1083 transitions. [2020-12-01 15:39:50,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-12-01 15:39:50,791 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:39:50,792 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 15:39:50,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:39:50,792 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:39:50,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:50,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1060108125, now seen corresponding path program 1 times [2020-12-01 15:39:50,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:50,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523882882] [2020-12-01 15:39:50,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:39:50,997 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:39:50,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523882882] [2020-12-01 15:39:50,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:39:50,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:39:50,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27592913] [2020-12-01 15:39:51,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:39:51,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:39:51,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:39:51,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:39:51,009 INFO L87 Difference]: Start difference. First operand 789 states and 1083 transitions. Second operand 3 states. [2020-12-01 15:39:52,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:39:52,314 INFO L93 Difference]: Finished difference Result 2314 states and 3181 transitions. [2020-12-01 15:39:52,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:39:52,317 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-12-01 15:39:52,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:39:52,327 INFO L225 Difference]: With dead ends: 2314 [2020-12-01 15:39:52,328 INFO L226 Difference]: Without dead ends: 1527 [2020-12-01 15:39:52,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:39:52,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2020-12-01 15:39:52,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1526. [2020-12-01 15:39:52,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-12-01 15:39:52,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1856 transitions. [2020-12-01 15:39:52,376 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1856 transitions. Word has length 132 [2020-12-01 15:39:52,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:39:52,376 INFO L481 AbstractCegarLoop]: Abstraction has 1526 states and 1856 transitions. [2020-12-01 15:39:52,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:39:52,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1856 transitions. [2020-12-01 15:39:52,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-12-01 15:39:52,381 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:39:52,382 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 15:39:52,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:39:52,382 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:39:52,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:52,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1320959583, now seen corresponding path program 1 times [2020-12-01 15:39:52,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:52,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545598114] [2020-12-01 15:39:52,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:39:52,738 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:39:52,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545598114] [2020-12-01 15:39:52,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:39:52,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:39:52,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86934577] [2020-12-01 15:39:52,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:39:52,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:39:52,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:39:52,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:39:52,743 INFO L87 Difference]: Start difference. First operand 1526 states and 1856 transitions. Second operand 4 states. [2020-12-01 15:39:55,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:39:55,215 INFO L93 Difference]: Finished difference Result 4184 states and 5339 transitions. [2020-12-01 15:39:55,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:39:55,216 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 189 [2020-12-01 15:39:55,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:39:55,245 INFO L225 Difference]: With dead ends: 4184 [2020-12-01 15:39:55,245 INFO L226 Difference]: Without dead ends: 2844 [2020-12-01 15:39:55,249 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:39:55,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2020-12-01 15:39:55,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2843. [2020-12-01 15:39:55,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2843 states. [2020-12-01 15:39:55,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2843 states to 2843 states and 3569 transitions. [2020-12-01 15:39:55,333 INFO L78 Accepts]: Start accepts. Automaton has 2843 states and 3569 transitions. Word has length 189 [2020-12-01 15:39:55,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:39:55,335 INFO L481 AbstractCegarLoop]: Abstraction has 2843 states and 3569 transitions. [2020-12-01 15:39:55,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:39:55,336 INFO L276 IsEmpty]: Start isEmpty. Operand 2843 states and 3569 transitions. [2020-12-01 15:39:55,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-12-01 15:39:55,344 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:39:55,345 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:39:55,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 15:39:55,345 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:39:55,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:55,346 INFO L82 PathProgramCache]: Analyzing trace with hash 117122617, now seen corresponding path program 1 times [2020-12-01 15:39:55,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:55,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336108728] [2020-12-01 15:39:55,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:39:55,700 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-12-01 15:39:55,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336108728] [2020-12-01 15:39:55,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:39:55,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:39:55,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441324360] [2020-12-01 15:39:55,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:39:55,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:39:55,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:39:55,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:39:55,703 INFO L87 Difference]: Start difference. First operand 2843 states and 3569 transitions. Second operand 3 states. [2020-12-01 15:39:57,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:39:57,306 INFO L93 Difference]: Finished difference Result 5864 states and 7525 transitions. [2020-12-01 15:39:57,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:39:57,307 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2020-12-01 15:39:57,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:39:57,331 INFO L225 Difference]: With dead ends: 5864 [2020-12-01 15:39:57,331 INFO L226 Difference]: Without dead ends: 3580 [2020-12-01 15:39:57,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:39:57,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3580 states. [2020-12-01 15:39:57,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3580 to 3580. [2020-12-01 15:39:57,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3580 states. [2020-12-01 15:39:57,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3580 states to 3580 states and 4527 transitions. [2020-12-01 15:39:57,435 INFO L78 Accepts]: Start accepts. Automaton has 3580 states and 4527 transitions. Word has length 244 [2020-12-01 15:39:57,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:39:57,436 INFO L481 AbstractCegarLoop]: Abstraction has 3580 states and 4527 transitions. [2020-12-01 15:39:57,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:39:57,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3580 states and 4527 transitions. [2020-12-01 15:39:57,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-12-01 15:39:57,444 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:39:57,444 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:39:57,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-01 15:39:57,445 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:39:57,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:57,446 INFO L82 PathProgramCache]: Analyzing trace with hash 57117662, now seen corresponding path program 1 times [2020-12-01 15:39:57,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:57,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683592049] [2020-12-01 15:39:57,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:39:57,741 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-12-01 15:39:57,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683592049] [2020-12-01 15:39:57,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:39:57,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:39:57,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489061230] [2020-12-01 15:39:57,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:39:57,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:39:57,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:39:57,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:39:57,749 INFO L87 Difference]: Start difference. First operand 3580 states and 4527 transitions. Second operand 3 states. [2020-12-01 15:39:58,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:39:58,994 INFO L93 Difference]: Finished difference Result 8269 states and 10650 transitions. [2020-12-01 15:39:58,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:39:58,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 255 [2020-12-01 15:39:58,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:39:59,028 INFO L225 Difference]: With dead ends: 8269 [2020-12-01 15:39:59,028 INFO L226 Difference]: Without dead ends: 4875 [2020-12-01 15:39:59,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:39:59,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4875 states. [2020-12-01 15:39:59,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4875 to 4867. [2020-12-01 15:39:59,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4867 states. [2020-12-01 15:39:59,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4867 states to 4867 states and 6025 transitions. [2020-12-01 15:39:59,170 INFO L78 Accepts]: Start accepts. Automaton has 4867 states and 6025 transitions. Word has length 255 [2020-12-01 15:39:59,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:39:59,176 INFO L481 AbstractCegarLoop]: Abstraction has 4867 states and 6025 transitions. [2020-12-01 15:39:59,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:39:59,177 INFO L276 IsEmpty]: Start isEmpty. Operand 4867 states and 6025 transitions. [2020-12-01 15:39:59,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-12-01 15:39:59,184 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:39:59,185 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:39:59,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-01 15:39:59,186 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:39:59,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:39:59,186 INFO L82 PathProgramCache]: Analyzing trace with hash -261029925, now seen corresponding path program 1 times [2020-12-01 15:39:59,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:39:59,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947679607] [2020-12-01 15:39:59,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:39:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:39:59,503 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-12-01 15:39:59,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947679607] [2020-12-01 15:39:59,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:39:59,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:39:59,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341806396] [2020-12-01 15:39:59,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:39:59,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:39:59,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:39:59,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:39:59,508 INFO L87 Difference]: Start difference. First operand 4867 states and 6025 transitions. Second operand 3 states. [2020-12-01 15:40:00,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:00,752 INFO L93 Difference]: Finished difference Result 10667 states and 13468 transitions. [2020-12-01 15:40:00,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:40:00,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 256 [2020-12-01 15:40:00,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:00,793 INFO L225 Difference]: With dead ends: 10667 [2020-12-01 15:40:00,793 INFO L226 Difference]: Without dead ends: 6170 [2020-12-01 15:40:00,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:00,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6170 states. [2020-12-01 15:40:00,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6170 to 6156. [2020-12-01 15:40:00,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6156 states. [2020-12-01 15:40:00,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6156 states to 6156 states and 7512 transitions. [2020-12-01 15:40:00,963 INFO L78 Accepts]: Start accepts. Automaton has 6156 states and 7512 transitions. Word has length 256 [2020-12-01 15:40:00,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:00,964 INFO L481 AbstractCegarLoop]: Abstraction has 6156 states and 7512 transitions. [2020-12-01 15:40:00,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:40:00,964 INFO L276 IsEmpty]: Start isEmpty. Operand 6156 states and 7512 transitions. [2020-12-01 15:40:00,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-12-01 15:40:00,974 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:00,975 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:00,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-01 15:40:00,975 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:00,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:00,976 INFO L82 PathProgramCache]: Analyzing trace with hash 964016376, now seen corresponding path program 1 times [2020-12-01 15:40:00,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:00,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872482946] [2020-12-01 15:40:00,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:01,320 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2020-12-01 15:40:01,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872482946] [2020-12-01 15:40:01,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:01,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:40:01,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281151160] [2020-12-01 15:40:01,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:40:01,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:01,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:40:01,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:01,323 INFO L87 Difference]: Start difference. First operand 6156 states and 7512 transitions. Second operand 3 states. [2020-12-01 15:40:02,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:02,839 INFO L93 Difference]: Finished difference Result 13791 states and 17137 transitions. [2020-12-01 15:40:02,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:40:02,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 293 [2020-12-01 15:40:02,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:02,892 INFO L225 Difference]: With dead ends: 13791 [2020-12-01 15:40:02,892 INFO L226 Difference]: Without dead ends: 8004 [2020-12-01 15:40:02,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:02,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8004 states. [2020-12-01 15:40:03,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8004 to 7628. [2020-12-01 15:40:03,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7628 states. [2020-12-01 15:40:03,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7628 states to 7628 states and 9146 transitions. [2020-12-01 15:40:03,079 INFO L78 Accepts]: Start accepts. Automaton has 7628 states and 9146 transitions. Word has length 293 [2020-12-01 15:40:03,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:03,080 INFO L481 AbstractCegarLoop]: Abstraction has 7628 states and 9146 transitions. [2020-12-01 15:40:03,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:40:03,081 INFO L276 IsEmpty]: Start isEmpty. Operand 7628 states and 9146 transitions. [2020-12-01 15:40:03,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-12-01 15:40:03,095 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:03,096 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:03,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-01 15:40:03,096 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:03,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:03,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1836050869, now seen corresponding path program 1 times [2020-12-01 15:40:03,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:03,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153570183] [2020-12-01 15:40:03,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:03,442 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-12-01 15:40:03,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153570183] [2020-12-01 15:40:03,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:03,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:40:03,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258742379] [2020-12-01 15:40:03,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:40:03,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:03,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:40:03,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:03,445 INFO L87 Difference]: Start difference. First operand 7628 states and 9146 transitions. Second operand 3 states. [2020-12-01 15:40:04,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:04,567 INFO L93 Difference]: Finished difference Result 16722 states and 20234 transitions. [2020-12-01 15:40:04,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:40:04,567 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 329 [2020-12-01 15:40:04,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:04,595 INFO L225 Difference]: With dead ends: 16722 [2020-12-01 15:40:04,595 INFO L226 Difference]: Without dead ends: 9464 [2020-12-01 15:40:04,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:04,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9464 states. [2020-12-01 15:40:04,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9464 to 7802. [2020-12-01 15:40:04,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7802 states. [2020-12-01 15:40:04,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7802 states to 7802 states and 9044 transitions. [2020-12-01 15:40:04,826 INFO L78 Accepts]: Start accepts. Automaton has 7802 states and 9044 transitions. Word has length 329 [2020-12-01 15:40:04,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:04,827 INFO L481 AbstractCegarLoop]: Abstraction has 7802 states and 9044 transitions. [2020-12-01 15:40:04,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:40:04,828 INFO L276 IsEmpty]: Start isEmpty. Operand 7802 states and 9044 transitions. [2020-12-01 15:40:04,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-12-01 15:40:04,843 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:04,844 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:04,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-01 15:40:04,845 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:04,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:04,845 INFO L82 PathProgramCache]: Analyzing trace with hash -2086719269, now seen corresponding path program 1 times [2020-12-01 15:40:04,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:04,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970484569] [2020-12-01 15:40:04,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:05,350 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:40:05,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970484569] [2020-12-01 15:40:05,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:05,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:40:05,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801827578] [2020-12-01 15:40:05,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:40:05,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:05,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:40:05,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:40:05,353 INFO L87 Difference]: Start difference. First operand 7802 states and 9044 transitions. Second operand 4 states. [2020-12-01 15:40:07,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:07,411 INFO L93 Difference]: Finished difference Result 20579 states and 23942 transitions. [2020-12-01 15:40:07,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:40:07,412 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 344 [2020-12-01 15:40:07,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:07,443 INFO L225 Difference]: With dead ends: 20579 [2020-12-01 15:40:07,443 INFO L226 Difference]: Without dead ends: 12778 [2020-12-01 15:40:07,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:40:07,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12778 states. [2020-12-01 15:40:07,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12778 to 12773. [2020-12-01 15:40:07,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12773 states. [2020-12-01 15:40:07,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12773 states to 12773 states and 14764 transitions. [2020-12-01 15:40:07,678 INFO L78 Accepts]: Start accepts. Automaton has 12773 states and 14764 transitions. Word has length 344 [2020-12-01 15:40:07,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:07,679 INFO L481 AbstractCegarLoop]: Abstraction has 12773 states and 14764 transitions. [2020-12-01 15:40:07,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:40:07,679 INFO L276 IsEmpty]: Start isEmpty. Operand 12773 states and 14764 transitions. [2020-12-01 15:40:07,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2020-12-01 15:40:07,702 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:07,703 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:07,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-01 15:40:07,703 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:07,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:07,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1744682296, now seen corresponding path program 1 times [2020-12-01 15:40:07,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:07,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597929023] [2020-12-01 15:40:07,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:08,190 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-12-01 15:40:08,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597929023] [2020-12-01 15:40:08,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:08,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:40:08,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038350756] [2020-12-01 15:40:08,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:40:08,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:08,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:40:08,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:08,194 INFO L87 Difference]: Start difference. First operand 12773 states and 14764 transitions. Second operand 3 states. [2020-12-01 15:40:09,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:09,457 INFO L93 Difference]: Finished difference Result 25178 states and 29152 transitions. [2020-12-01 15:40:09,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:40:09,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 350 [2020-12-01 15:40:09,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:09,491 INFO L225 Difference]: With dead ends: 25178 [2020-12-01 15:40:09,491 INFO L226 Difference]: Without dead ends: 14067 [2020-12-01 15:40:09,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:09,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14067 states. [2020-12-01 15:40:09,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14067 to 12773. [2020-12-01 15:40:09,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12773 states. [2020-12-01 15:40:09,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12773 states to 12773 states and 14764 transitions. [2020-12-01 15:40:09,725 INFO L78 Accepts]: Start accepts. Automaton has 12773 states and 14764 transitions. Word has length 350 [2020-12-01 15:40:09,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:09,727 INFO L481 AbstractCegarLoop]: Abstraction has 12773 states and 14764 transitions. [2020-12-01 15:40:09,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:40:09,727 INFO L276 IsEmpty]: Start isEmpty. Operand 12773 states and 14764 transitions. [2020-12-01 15:40:09,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2020-12-01 15:40:09,751 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:09,751 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-12-01 15:40:09,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-01 15:40:09,752 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:09,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:09,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1965399570, now seen corresponding path program 1 times [2020-12-01 15:40:09,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:09,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570580634] [2020-12-01 15:40:09,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:10,209 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-12-01 15:40:10,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570580634] [2020-12-01 15:40:10,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:10,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:40:10,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486248187] [2020-12-01 15:40:10,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:40:10,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:10,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:40:10,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:10,217 INFO L87 Difference]: Start difference. First operand 12773 states and 14764 transitions. Second operand 3 states. [2020-12-01 15:40:11,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:11,784 INFO L93 Difference]: Finished difference Result 25549 states and 29691 transitions. [2020-12-01 15:40:11,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:40:11,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 373 [2020-12-01 15:40:11,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:11,819 INFO L225 Difference]: With dead ends: 25549 [2020-12-01 15:40:11,819 INFO L226 Difference]: Without dead ends: 14438 [2020-12-01 15:40:11,832 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:11,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14438 states. [2020-12-01 15:40:12,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14438 to 14066. [2020-12-01 15:40:12,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14066 states. [2020-12-01 15:40:12,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14066 states to 14066 states and 16129 transitions. [2020-12-01 15:40:12,145 INFO L78 Accepts]: Start accepts. Automaton has 14066 states and 16129 transitions. Word has length 373 [2020-12-01 15:40:12,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:12,146 INFO L481 AbstractCegarLoop]: Abstraction has 14066 states and 16129 transitions. [2020-12-01 15:40:12,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:40:12,147 INFO L276 IsEmpty]: Start isEmpty. Operand 14066 states and 16129 transitions. [2020-12-01 15:40:12,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2020-12-01 15:40:12,172 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:12,172 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:12,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-01 15:40:12,173 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:12,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:12,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1040605748, now seen corresponding path program 1 times [2020-12-01 15:40:12,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:12,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453415185] [2020-12-01 15:40:12,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:12,505 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2020-12-01 15:40:12,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453415185] [2020-12-01 15:40:12,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:12,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:40:12,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417066855] [2020-12-01 15:40:12,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:40:12,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:12,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:40:12,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:12,508 INFO L87 Difference]: Start difference. First operand 14066 states and 16129 transitions. Second operand 3 states. [2020-12-01 15:40:13,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:13,993 INFO L93 Difference]: Finished difference Result 29606 states and 34124 transitions. [2020-12-01 15:40:13,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:40:13,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 382 [2020-12-01 15:40:13,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:14,026 INFO L225 Difference]: With dead ends: 29606 [2020-12-01 15:40:14,027 INFO L226 Difference]: Without dead ends: 15909 [2020-12-01 15:40:14,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:14,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15909 states. [2020-12-01 15:40:14,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15909 to 13328. [2020-12-01 15:40:14,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13328 states. [2020-12-01 15:40:14,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13328 states to 13328 states and 15303 transitions. [2020-12-01 15:40:14,296 INFO L78 Accepts]: Start accepts. Automaton has 13328 states and 15303 transitions. Word has length 382 [2020-12-01 15:40:14,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:14,297 INFO L481 AbstractCegarLoop]: Abstraction has 13328 states and 15303 transitions. [2020-12-01 15:40:14,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:40:14,298 INFO L276 IsEmpty]: Start isEmpty. Operand 13328 states and 15303 transitions. [2020-12-01 15:40:14,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2020-12-01 15:40:14,317 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:14,318 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:14,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-01 15:40:14,318 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:14,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:14,319 INFO L82 PathProgramCache]: Analyzing trace with hash -304792259, now seen corresponding path program 1 times [2020-12-01 15:40:14,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:14,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601187353] [2020-12-01 15:40:14,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:15,835 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 124 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:40:15,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601187353] [2020-12-01 15:40:15,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107177645] [2020-12-01 15:40:15,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:40:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:16,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-01 15:40:16,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:40:17,840 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 124 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:40:17,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:40:17,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2020-12-01 15:40:17,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32932545] [2020-12-01 15:40:17,844 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-01 15:40:17,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:17,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-01 15:40:17,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:40:17,845 INFO L87 Difference]: Start difference. First operand 13328 states and 15303 transitions. Second operand 9 states. [2020-12-01 15:40:25,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:25,542 INFO L93 Difference]: Finished difference Result 39000 states and 44771 transitions. [2020-12-01 15:40:25,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-01 15:40:25,543 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 382 [2020-12-01 15:40:25,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:25,599 INFO L225 Difference]: With dead ends: 39000 [2020-12-01 15:40:25,599 INFO L226 Difference]: Without dead ends: 26042 [2020-12-01 15:40:25,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 378 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-12-01 15:40:25,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26042 states. [2020-12-01 15:40:26,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26042 to 20330. [2020-12-01 15:40:26,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20330 states. [2020-12-01 15:40:26,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20330 states to 20330 states and 23101 transitions. [2020-12-01 15:40:26,291 INFO L78 Accepts]: Start accepts. Automaton has 20330 states and 23101 transitions. Word has length 382 [2020-12-01 15:40:26,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:26,292 INFO L481 AbstractCegarLoop]: Abstraction has 20330 states and 23101 transitions. [2020-12-01 15:40:26,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-01 15:40:26,293 INFO L276 IsEmpty]: Start isEmpty. Operand 20330 states and 23101 transitions. [2020-12-01 15:40:26,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2020-12-01 15:40:26,317 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:26,318 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 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] [2020-12-01 15:40:26,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-01 15:40:26,534 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:26,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:26,535 INFO L82 PathProgramCache]: Analyzing trace with hash 284281320, now seen corresponding path program 1 times [2020-12-01 15:40:26,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:26,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411196854] [2020-12-01 15:40:26,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:27,019 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 461 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:40:27,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411196854] [2020-12-01 15:40:27,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:27,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:40:27,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748559226] [2020-12-01 15:40:27,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:40:27,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:27,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:40:27,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:40:27,028 INFO L87 Difference]: Start difference. First operand 20330 states and 23101 transitions. Second operand 4 states. [2020-12-01 15:40:29,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:29,679 INFO L93 Difference]: Finished difference Result 48419 states and 55336 transitions. [2020-12-01 15:40:29,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:40:29,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 387 [2020-12-01 15:40:29,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:29,757 INFO L225 Difference]: With dead ends: 48419 [2020-12-01 15:40:29,757 INFO L226 Difference]: Without dead ends: 28459 [2020-12-01 15:40:29,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:40:29,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28459 states. [2020-12-01 15:40:30,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28459 to 26421. [2020-12-01 15:40:30,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26421 states. [2020-12-01 15:40:30,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26421 states to 26421 states and 29873 transitions. [2020-12-01 15:40:30,433 INFO L78 Accepts]: Start accepts. Automaton has 26421 states and 29873 transitions. Word has length 387 [2020-12-01 15:40:30,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:30,434 INFO L481 AbstractCegarLoop]: Abstraction has 26421 states and 29873 transitions. [2020-12-01 15:40:30,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:40:30,434 INFO L276 IsEmpty]: Start isEmpty. Operand 26421 states and 29873 transitions. [2020-12-01 15:40:30,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2020-12-01 15:40:30,487 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:30,488 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:30,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-01 15:40:30,489 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:30,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:30,490 INFO L82 PathProgramCache]: Analyzing trace with hash -76395856, now seen corresponding path program 1 times [2020-12-01 15:40:30,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:30,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350465281] [2020-12-01 15:40:30,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:31,020 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2020-12-01 15:40:31,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350465281] [2020-12-01 15:40:31,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:31,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:40:31,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161395063] [2020-12-01 15:40:31,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:40:31,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:31,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:40:31,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:31,023 INFO L87 Difference]: Start difference. First operand 26421 states and 29873 transitions. Second operand 3 states. [2020-12-01 15:40:32,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:32,454 INFO L93 Difference]: Finished difference Result 54864 states and 62150 transitions. [2020-12-01 15:40:32,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:40:32,455 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 442 [2020-12-01 15:40:32,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:32,516 INFO L225 Difference]: With dead ends: 54864 [2020-12-01 15:40:32,516 INFO L226 Difference]: Without dead ends: 28813 [2020-12-01 15:40:32,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:32,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28813 states. [2020-12-01 15:40:32,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28813 to 17942. [2020-12-01 15:40:32,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17942 states. [2020-12-01 15:40:32,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17942 states to 17942 states and 20329 transitions. [2020-12-01 15:40:32,931 INFO L78 Accepts]: Start accepts. Automaton has 17942 states and 20329 transitions. Word has length 442 [2020-12-01 15:40:32,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:32,932 INFO L481 AbstractCegarLoop]: Abstraction has 17942 states and 20329 transitions. [2020-12-01 15:40:32,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:40:32,932 INFO L276 IsEmpty]: Start isEmpty. Operand 17942 states and 20329 transitions. [2020-12-01 15:40:32,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2020-12-01 15:40:32,956 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:32,957 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:32,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-01 15:40:32,957 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:32,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:32,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1966943107, now seen corresponding path program 1 times [2020-12-01 15:40:32,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:32,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723319136] [2020-12-01 15:40:32,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:33,429 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 619 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2020-12-01 15:40:33,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723319136] [2020-12-01 15:40:33,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:33,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:40:33,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979331941] [2020-12-01 15:40:33,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:40:33,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:33,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:40:33,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:33,431 INFO L87 Difference]: Start difference. First operand 17942 states and 20329 transitions. Second operand 3 states. [2020-12-01 15:40:34,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:34,865 INFO L93 Difference]: Finished difference Result 38457 states and 43467 transitions. [2020-12-01 15:40:34,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:40:34,866 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 526 [2020-12-01 15:40:34,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:34,898 INFO L225 Difference]: With dead ends: 38457 [2020-12-01 15:40:34,899 INFO L226 Difference]: Without dead ends: 20885 [2020-12-01 15:40:34,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:34,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20885 states. [2020-12-01 15:40:35,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20885 to 20326. [2020-12-01 15:40:35,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20326 states. [2020-12-01 15:40:35,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20326 states to 20326 states and 22775 transitions. [2020-12-01 15:40:35,343 INFO L78 Accepts]: Start accepts. Automaton has 20326 states and 22775 transitions. Word has length 526 [2020-12-01 15:40:35,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:35,343 INFO L481 AbstractCegarLoop]: Abstraction has 20326 states and 22775 transitions. [2020-12-01 15:40:35,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:40:35,343 INFO L276 IsEmpty]: Start isEmpty. Operand 20326 states and 22775 transitions. [2020-12-01 15:40:35,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2020-12-01 15:40:35,365 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:35,366 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:35,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-01 15:40:35,366 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:35,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:35,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1983525633, now seen corresponding path program 1 times [2020-12-01 15:40:35,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:35,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235659705] [2020-12-01 15:40:35,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:35,897 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 574 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2020-12-01 15:40:35,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235659705] [2020-12-01 15:40:35,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:35,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:40:35,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557837820] [2020-12-01 15:40:35,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:40:35,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:35,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:40:35,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:35,903 INFO L87 Difference]: Start difference. First operand 20326 states and 22775 transitions. Second operand 3 states. [2020-12-01 15:40:37,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:37,132 INFO L93 Difference]: Finished difference Result 42512 states and 47656 transitions. [2020-12-01 15:40:37,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:40:37,133 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 531 [2020-12-01 15:40:37,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:37,160 INFO L225 Difference]: With dead ends: 42512 [2020-12-01 15:40:37,160 INFO L226 Difference]: Without dead ends: 22188 [2020-12-01 15:40:37,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:37,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22188 states. [2020-12-01 15:40:37,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22188 to 21056. [2020-12-01 15:40:37,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21056 states. [2020-12-01 15:40:37,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21056 states to 21056 states and 23385 transitions. [2020-12-01 15:40:37,565 INFO L78 Accepts]: Start accepts. Automaton has 21056 states and 23385 transitions. Word has length 531 [2020-12-01 15:40:37,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:37,566 INFO L481 AbstractCegarLoop]: Abstraction has 21056 states and 23385 transitions. [2020-12-01 15:40:37,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:40:37,566 INFO L276 IsEmpty]: Start isEmpty. Operand 21056 states and 23385 transitions. [2020-12-01 15:40:37,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2020-12-01 15:40:37,588 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:37,590 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:37,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-01 15:40:37,593 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:37,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:37,594 INFO L82 PathProgramCache]: Analyzing trace with hash 297191834, now seen corresponding path program 1 times [2020-12-01 15:40:37,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:37,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496870089] [2020-12-01 15:40:37,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:38,654 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 320 proven. 406 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2020-12-01 15:40:38,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496870089] [2020-12-01 15:40:38,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231545391] [2020-12-01 15:40:38,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:40:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:38,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:40:38,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:40:39,247 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:40:40,101 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 716 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-12-01 15:40:40,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:40:40,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-01 15:40:40,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930082234] [2020-12-01 15:40:40,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:40:40,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:40,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:40:40,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:40:40,105 INFO L87 Difference]: Start difference. First operand 21056 states and 23385 transitions. Second operand 4 states. [2020-12-01 15:40:42,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:42,350 INFO L93 Difference]: Finished difference Result 48573 states and 54022 transitions. [2020-12-01 15:40:42,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:40:42,351 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 532 [2020-12-01 15:40:42,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:42,382 INFO L225 Difference]: With dead ends: 48573 [2020-12-01 15:40:42,383 INFO L226 Difference]: Without dead ends: 26599 [2020-12-01 15:40:42,400 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 530 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:40:42,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26599 states. [2020-12-01 15:40:42,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26599 to 20510. [2020-12-01 15:40:42,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20510 states. [2020-12-01 15:40:42,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20510 states to 20510 states and 22844 transitions. [2020-12-01 15:40:42,806 INFO L78 Accepts]: Start accepts. Automaton has 20510 states and 22844 transitions. Word has length 532 [2020-12-01 15:40:42,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:42,807 INFO L481 AbstractCegarLoop]: Abstraction has 20510 states and 22844 transitions. [2020-12-01 15:40:42,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:40:42,807 INFO L276 IsEmpty]: Start isEmpty. Operand 20510 states and 22844 transitions. [2020-12-01 15:40:42,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2020-12-01 15:40:42,831 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:42,833 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:43,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:40:43,050 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:43,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:43,051 INFO L82 PathProgramCache]: Analyzing trace with hash 652257370, now seen corresponding path program 1 times [2020-12-01 15:40:43,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:43,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546995194] [2020-12-01 15:40:43,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:43,954 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 831 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-12-01 15:40:43,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546995194] [2020-12-01 15:40:43,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:43,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:40:43,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197049151] [2020-12-01 15:40:43,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:40:43,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:43,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:40:43,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:40:43,958 INFO L87 Difference]: Start difference. First operand 20510 states and 22844 transitions. Second operand 4 states. [2020-12-01 15:40:46,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:46,208 INFO L93 Difference]: Finished difference Result 43968 states and 48858 transitions. [2020-12-01 15:40:46,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:40:46,209 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 580 [2020-12-01 15:40:46,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:46,240 INFO L225 Difference]: With dead ends: 43968 [2020-12-01 15:40:46,240 INFO L226 Difference]: Without dead ends: 23828 [2020-12-01 15:40:46,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:40:46,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23828 states. [2020-12-01 15:40:46,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23828 to 21245. [2020-12-01 15:40:46,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21245 states. [2020-12-01 15:40:46,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21245 states to 21245 states and 23397 transitions. [2020-12-01 15:40:46,554 INFO L78 Accepts]: Start accepts. Automaton has 21245 states and 23397 transitions. Word has length 580 [2020-12-01 15:40:46,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:46,555 INFO L481 AbstractCegarLoop]: Abstraction has 21245 states and 23397 transitions. [2020-12-01 15:40:46,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:40:46,555 INFO L276 IsEmpty]: Start isEmpty. Operand 21245 states and 23397 transitions. [2020-12-01 15:40:46,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2020-12-01 15:40:46,578 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:46,578 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:46,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-01 15:40:46,579 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:46,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:46,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1113055461, now seen corresponding path program 1 times [2020-12-01 15:40:46,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:46,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951121162] [2020-12-01 15:40:46,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:47,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 940 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2020-12-01 15:40:47,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951121162] [2020-12-01 15:40:47,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:47,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:40:47,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710650614] [2020-12-01 15:40:47,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:40:47,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:47,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:40:47,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:47,231 INFO L87 Difference]: Start difference. First operand 21245 states and 23397 transitions. Second operand 3 states. [2020-12-01 15:40:48,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:48,612 INFO L93 Difference]: Finished difference Result 43970 states and 48405 transitions. [2020-12-01 15:40:48,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:40:48,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 628 [2020-12-01 15:40:48,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:48,634 INFO L225 Difference]: With dead ends: 43970 [2020-12-01 15:40:48,635 INFO L226 Difference]: Without dead ends: 23095 [2020-12-01 15:40:48,645 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:48,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23095 states. [2020-12-01 15:40:48,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23095 to 19950. [2020-12-01 15:40:48,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19950 states. [2020-12-01 15:40:48,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19950 states to 19950 states and 21940 transitions. [2020-12-01 15:40:48,929 INFO L78 Accepts]: Start accepts. Automaton has 19950 states and 21940 transitions. Word has length 628 [2020-12-01 15:40:48,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:48,929 INFO L481 AbstractCegarLoop]: Abstraction has 19950 states and 21940 transitions. [2020-12-01 15:40:48,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:40:48,929 INFO L276 IsEmpty]: Start isEmpty. Operand 19950 states and 21940 transitions. [2020-12-01 15:40:48,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2020-12-01 15:40:48,945 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:48,946 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:48,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-01 15:40:48,946 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:48,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:48,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1914203690, now seen corresponding path program 1 times [2020-12-01 15:40:48,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:48,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617112178] [2020-12-01 15:40:48,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:49,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1313 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2020-12-01 15:40:49,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617112178] [2020-12-01 15:40:49,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:49,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:40:49,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14235614] [2020-12-01 15:40:49,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:40:49,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:49,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:40:49,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:49,677 INFO L87 Difference]: Start difference. First operand 19950 states and 21940 transitions. Second operand 3 states. [2020-12-01 15:40:50,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:50,961 INFO L93 Difference]: Finished difference Result 41184 states and 45220 transitions. [2020-12-01 15:40:50,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:40:50,965 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 649 [2020-12-01 15:40:50,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:50,985 INFO L225 Difference]: With dead ends: 41184 [2020-12-01 15:40:50,985 INFO L226 Difference]: Without dead ends: 21604 [2020-12-01 15:40:50,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:51,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21604 states. [2020-12-01 15:40:51,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21604 to 19763. [2020-12-01 15:40:51,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19763 states. [2020-12-01 15:40:51,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19763 states to 19763 states and 21619 transitions. [2020-12-01 15:40:51,248 INFO L78 Accepts]: Start accepts. Automaton has 19763 states and 21619 transitions. Word has length 649 [2020-12-01 15:40:51,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:51,249 INFO L481 AbstractCegarLoop]: Abstraction has 19763 states and 21619 transitions. [2020-12-01 15:40:51,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:40:51,249 INFO L276 IsEmpty]: Start isEmpty. Operand 19763 states and 21619 transitions. [2020-12-01 15:40:51,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2020-12-01 15:40:51,265 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:51,265 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:51,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-01 15:40:51,266 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:51,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:51,266 INFO L82 PathProgramCache]: Analyzing trace with hash 988320550, now seen corresponding path program 1 times [2020-12-01 15:40:51,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:51,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566798503] [2020-12-01 15:40:51,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:52,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1362 backedges. 747 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2020-12-01 15:40:52,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566798503] [2020-12-01 15:40:52,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:52,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:40:52,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120495119] [2020-12-01 15:40:52,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:40:52,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:52,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:40:52,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:52,051 INFO L87 Difference]: Start difference. First operand 19763 states and 21619 transitions. Second operand 3 states. [2020-12-01 15:40:53,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:53,603 INFO L93 Difference]: Finished difference Result 40444 states and 44258 transitions. [2020-12-01 15:40:53,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:40:53,605 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 662 [2020-12-01 15:40:53,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:53,626 INFO L225 Difference]: With dead ends: 40444 [2020-12-01 15:40:53,626 INFO L226 Difference]: Without dead ends: 21051 [2020-12-01 15:40:53,637 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:53,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21051 states. [2020-12-01 15:40:53,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21051 to 18283. [2020-12-01 15:40:53,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18283 states. [2020-12-01 15:40:53,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18283 states to 18283 states and 19970 transitions. [2020-12-01 15:40:53,961 INFO L78 Accepts]: Start accepts. Automaton has 18283 states and 19970 transitions. Word has length 662 [2020-12-01 15:40:53,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:53,962 INFO L481 AbstractCegarLoop]: Abstraction has 18283 states and 19970 transitions. [2020-12-01 15:40:53,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:40:53,962 INFO L276 IsEmpty]: Start isEmpty. Operand 18283 states and 19970 transitions. [2020-12-01 15:40:53,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2020-12-01 15:40:53,985 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:53,986 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:53,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-01 15:40:53,986 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:53,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:53,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1903953828, now seen corresponding path program 1 times [2020-12-01 15:40:53,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:53,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770256841] [2020-12-01 15:40:53,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:54,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked. [2020-12-01 15:40:54,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770256841] [2020-12-01 15:40:54,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:54,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:40:54,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371400661] [2020-12-01 15:40:54,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:40:54,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:54,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:40:54,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:54,671 INFO L87 Difference]: Start difference. First operand 18283 states and 19970 transitions. Second operand 3 states. [2020-12-01 15:40:55,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:55,938 INFO L93 Difference]: Finished difference Result 37299 states and 40717 transitions. [2020-12-01 15:40:55,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:40:55,939 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 682 [2020-12-01 15:40:55,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:55,963 INFO L225 Difference]: With dead ends: 37299 [2020-12-01 15:40:55,963 INFO L226 Difference]: Without dead ends: 19386 [2020-12-01 15:40:55,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:40:55,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19386 states. [2020-12-01 15:40:56,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19386 to 17727. [2020-12-01 15:40:56,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17727 states. [2020-12-01 15:40:56,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17727 states to 17727 states and 19280 transitions. [2020-12-01 15:40:56,215 INFO L78 Accepts]: Start accepts. Automaton has 17727 states and 19280 transitions. Word has length 682 [2020-12-01 15:40:56,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:56,215 INFO L481 AbstractCegarLoop]: Abstraction has 17727 states and 19280 transitions. [2020-12-01 15:40:56,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:40:56,215 INFO L276 IsEmpty]: Start isEmpty. Operand 17727 states and 19280 transitions. [2020-12-01 15:40:56,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2020-12-01 15:40:56,231 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:56,232 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:56,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-01 15:40:56,232 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:56,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:56,233 INFO L82 PathProgramCache]: Analyzing trace with hash -2087715072, now seen corresponding path program 1 times [2020-12-01 15:40:56,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:56,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830129173] [2020-12-01 15:40:56,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:57,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 879 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2020-12-01 15:40:57,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830129173] [2020-12-01 15:40:57,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:57,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:40:57,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103462912] [2020-12-01 15:40:57,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 15:40:57,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:57,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:40:57,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:40:57,915 INFO L87 Difference]: Start difference. First operand 17727 states and 19280 transitions. Second operand 6 states. [2020-12-01 15:41:00,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:00,663 INFO L93 Difference]: Finished difference Result 42448 states and 46103 transitions. [2020-12-01 15:41:00,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 15:41:00,664 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 683 [2020-12-01 15:41:00,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:00,697 INFO L225 Difference]: With dead ends: 42448 [2020-12-01 15:41:00,697 INFO L226 Difference]: Without dead ends: 25091 [2020-12-01 15:41:00,705 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:41:00,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25091 states. [2020-12-01 15:41:01,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25091 to 24723. [2020-12-01 15:41:01,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24723 states. [2020-12-01 15:41:01,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24723 states to 24723 states and 26826 transitions. [2020-12-01 15:41:01,092 INFO L78 Accepts]: Start accepts. Automaton has 24723 states and 26826 transitions. Word has length 683 [2020-12-01 15:41:01,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:01,093 INFO L481 AbstractCegarLoop]: Abstraction has 24723 states and 26826 transitions. [2020-12-01 15:41:01,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 15:41:01,093 INFO L276 IsEmpty]: Start isEmpty. Operand 24723 states and 26826 transitions. [2020-12-01 15:41:01,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2020-12-01 15:41:01,112 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:01,113 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:41:01,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-01 15:41:01,113 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:01,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:01,114 INFO L82 PathProgramCache]: Analyzing trace with hash 289999705, now seen corresponding path program 1 times [2020-12-01 15:41:01,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:41:01,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096299440] [2020-12-01 15:41:01,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:41:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:03,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 901 proven. 8 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2020-12-01 15:41:03,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096299440] [2020-12-01 15:41:03,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870425919] [2020-12-01 15:41:03,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:41:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:03,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:41:03,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:41:05,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 788 proven. 121 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2020-12-01 15:41:05,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:41:05,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2020-12-01 15:41:05,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222075425] [2020-12-01 15:41:05,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-01 15:41:05,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:41:05,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-01 15:41:05,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:41:05,203 INFO L87 Difference]: Start difference. First operand 24723 states and 26826 transitions. Second operand 9 states. [2020-12-01 15:41:10,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:10,768 INFO L93 Difference]: Finished difference Result 52999 states and 57486 transitions. [2020-12-01 15:41:10,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-01 15:41:10,769 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 693 [2020-12-01 15:41:10,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:10,802 INFO L225 Difference]: With dead ends: 52999 [2020-12-01 15:41:10,802 INFO L226 Difference]: Without dead ends: 30856 [2020-12-01 15:41:10,811 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 692 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2020-12-01 15:41:10,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30856 states. [2020-12-01 15:41:11,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30856 to 24539. [2020-12-01 15:41:11,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24539 states. [2020-12-01 15:41:11,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24539 states to 24539 states and 26585 transitions. [2020-12-01 15:41:11,159 INFO L78 Accepts]: Start accepts. Automaton has 24539 states and 26585 transitions. Word has length 693 [2020-12-01 15:41:11,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:11,160 INFO L481 AbstractCegarLoop]: Abstraction has 24539 states and 26585 transitions. [2020-12-01 15:41:11,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-01 15:41:11,160 INFO L276 IsEmpty]: Start isEmpty. Operand 24539 states and 26585 transitions. [2020-12-01 15:41:11,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2020-12-01 15:41:11,179 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:11,180 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:41:11,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-12-01 15:41:11,394 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:11,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:11,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1451888965, now seen corresponding path program 1 times [2020-12-01 15:41:11,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:41:11,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115351583] [2020-12-01 15:41:11,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:41:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:12,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1393 backedges. 978 proven. 213 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2020-12-01 15:41:12,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115351583] [2020-12-01 15:41:12,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318028419] [2020-12-01 15:41:12,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:41:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:12,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:41:12,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:41:14,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1393 backedges. 918 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2020-12-01 15:41:14,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:41:14,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-01 15:41:14,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920193135] [2020-12-01 15:41:14,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:41:14,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:41:14,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:41:14,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:41:14,086 INFO L87 Difference]: Start difference. First operand 24539 states and 26585 transitions. Second operand 3 states. [2020-12-01 15:41:15,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:15,435 INFO L93 Difference]: Finished difference Result 47434 states and 51438 transitions. [2020-12-01 15:41:15,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:41:15,447 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 698 [2020-12-01 15:41:15,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:15,484 INFO L225 Difference]: With dead ends: 47434 [2020-12-01 15:41:15,484 INFO L226 Difference]: Without dead ends: 25843 [2020-12-01 15:41:15,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 702 GetRequests, 699 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:41:15,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25843 states. [2020-12-01 15:41:15,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25843 to 25653. [2020-12-01 15:41:15,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25653 states. [2020-12-01 15:41:15,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25653 states to 25653 states and 27701 transitions. [2020-12-01 15:41:15,888 INFO L78 Accepts]: Start accepts. Automaton has 25653 states and 27701 transitions. Word has length 698 [2020-12-01 15:41:15,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:15,888 INFO L481 AbstractCegarLoop]: Abstraction has 25653 states and 27701 transitions. [2020-12-01 15:41:15,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:41:15,889 INFO L276 IsEmpty]: Start isEmpty. Operand 25653 states and 27701 transitions. [2020-12-01 15:41:15,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2020-12-01 15:41:15,908 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:15,909 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:41:16,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:41:16,109 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:16,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:16,110 INFO L82 PathProgramCache]: Analyzing trace with hash 730834839, now seen corresponding path program 1 times [2020-12-01 15:41:16,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:41:16,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865780962] [2020-12-01 15:41:16,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:41:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:17,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1541 backedges. 1102 proven. 64 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2020-12-01 15:41:17,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865780962] [2020-12-01 15:41:17,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680017194] [2020-12-01 15:41:17,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:41:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:17,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:41:17,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:41:19,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1541 backedges. 1166 proven. 0 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2020-12-01 15:41:19,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:41:19,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-12-01 15:41:19,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255181451] [2020-12-01 15:41:19,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:41:19,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:41:19,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:41:19,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:41:19,182 INFO L87 Difference]: Start difference. First operand 25653 states and 27701 transitions. Second operand 3 states. [2020-12-01 15:41:20,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:20,652 INFO L93 Difference]: Finished difference Result 50391 states and 54413 transitions. [2020-12-01 15:41:20,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:41:20,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 708 [2020-12-01 15:41:20,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:20,687 INFO L225 Difference]: With dead ends: 50391 [2020-12-01 15:41:20,687 INFO L226 Difference]: Without dead ends: 27502 [2020-12-01 15:41:20,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 711 GetRequests, 707 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:41:20,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27502 states. [2020-12-01 15:41:21,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27502 to 25101. [2020-12-01 15:41:21,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25101 states. [2020-12-01 15:41:21,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25101 states to 25101 states and 27083 transitions. [2020-12-01 15:41:21,111 INFO L78 Accepts]: Start accepts. Automaton has 25101 states and 27083 transitions. Word has length 708 [2020-12-01 15:41:21,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:21,111 INFO L481 AbstractCegarLoop]: Abstraction has 25101 states and 27083 transitions. [2020-12-01 15:41:21,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:41:21,111 INFO L276 IsEmpty]: Start isEmpty. Operand 25101 states and 27083 transitions. [2020-12-01 15:41:21,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 764 [2020-12-01 15:41:21,132 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:21,133 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-12-01 15:41:21,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-12-01 15:41:21,338 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:21,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:21,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1345111814, now seen corresponding path program 1 times [2020-12-01 15:41:21,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:41:21,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614452919] [2020-12-01 15:41:21,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:41:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:23,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 1145 proven. 294 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2020-12-01 15:41:23,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614452919] [2020-12-01 15:41:23,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548604676] [2020-12-01 15:41:23,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:41:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:23,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 1003 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:41:23,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:41:25,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 1259 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2020-12-01 15:41:25,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:41:25,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2020-12-01 15:41:25,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599117208] [2020-12-01 15:41:25,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:41:25,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:41:25,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:41:25,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:41:25,232 INFO L87 Difference]: Start difference. First operand 25101 states and 27083 transitions. Second operand 4 states. [2020-12-01 15:41:26,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:26,934 INFO L93 Difference]: Finished difference Result 47439 states and 51195 transitions. [2020-12-01 15:41:26,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:41:26,935 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 763 [2020-12-01 15:41:26,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:26,960 INFO L225 Difference]: With dead ends: 47439 [2020-12-01 15:41:26,960 INFO L226 Difference]: Without dead ends: 24732 [2020-12-01 15:41:26,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 769 GetRequests, 762 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:41:26,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24732 states. [2020-12-01 15:41:27,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24732 to 18839. [2020-12-01 15:41:27,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18839 states. [2020-12-01 15:41:27,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18839 states to 18839 states and 20116 transitions. [2020-12-01 15:41:27,267 INFO L78 Accepts]: Start accepts. Automaton has 18839 states and 20116 transitions. Word has length 763 [2020-12-01 15:41:27,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:27,267 INFO L481 AbstractCegarLoop]: Abstraction has 18839 states and 20116 transitions. [2020-12-01 15:41:27,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:41:27,268 INFO L276 IsEmpty]: Start isEmpty. Operand 18839 states and 20116 transitions. [2020-12-01 15:41:27,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 772 [2020-12-01 15:41:27,288 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:27,289 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:41:27,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-12-01 15:41:27,489 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:27,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:27,490 INFO L82 PathProgramCache]: Analyzing trace with hash -679980119, now seen corresponding path program 1 times [2020-12-01 15:41:27,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:41:27,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554983374] [2020-12-01 15:41:27,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:41:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:28,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 1376 proven. 0 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2020-12-01 15:41:28,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554983374] [2020-12-01 15:41:28,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:41:28,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:41:28,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30151435] [2020-12-01 15:41:28,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:41:28,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:41:28,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:41:28,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:41:28,339 INFO L87 Difference]: Start difference. First operand 18839 states and 20116 transitions. Second operand 3 states. [2020-12-01 15:41:29,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:29,627 INFO L93 Difference]: Finished difference Result 36933 states and 39467 transitions. [2020-12-01 15:41:29,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:41:29,628 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 771 [2020-12-01 15:41:29,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:29,644 INFO L225 Difference]: With dead ends: 36933 [2020-12-01 15:41:29,644 INFO L226 Difference]: Without dead ends: 18464 [2020-12-01 15:41:29,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:41:29,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18464 states. [2020-12-01 15:41:29,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18464 to 17912. [2020-12-01 15:41:29,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17912 states. [2020-12-01 15:41:29,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17912 states to 17912 states and 19016 transitions. [2020-12-01 15:41:29,886 INFO L78 Accepts]: Start accepts. Automaton has 17912 states and 19016 transitions. Word has length 771 [2020-12-01 15:41:29,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:29,887 INFO L481 AbstractCegarLoop]: Abstraction has 17912 states and 19016 transitions. [2020-12-01 15:41:29,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:41:29,887 INFO L276 IsEmpty]: Start isEmpty. Operand 17912 states and 19016 transitions. [2020-12-01 15:41:29,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 775 [2020-12-01 15:41:29,903 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:29,904 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:41:29,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-01 15:41:29,904 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:29,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:29,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1432450941, now seen corresponding path program 1 times [2020-12-01 15:41:29,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:41:29,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092960878] [2020-12-01 15:41:29,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:41:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:30,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1782 backedges. 925 proven. 0 refuted. 0 times theorem prover too weak. 857 trivial. 0 not checked. [2020-12-01 15:41:30,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092960878] [2020-12-01 15:41:30,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:41:30,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:41:30,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759304172] [2020-12-01 15:41:30,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:41:30,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:41:30,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:41:30,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:41:30,786 INFO L87 Difference]: Start difference. First operand 17912 states and 19016 transitions. Second operand 3 states. [2020-12-01 15:41:31,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:31,625 INFO L93 Difference]: Finished difference Result 33237 states and 35299 transitions. [2020-12-01 15:41:31,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:41:31,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 774 [2020-12-01 15:41:31,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:31,643 INFO L225 Difference]: With dead ends: 33237 [2020-12-01 15:41:31,643 INFO L226 Difference]: Without dead ends: 17721 [2020-12-01 15:41:31,653 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:41:31,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17721 states. [2020-12-01 15:41:31,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17721 to 17718. [2020-12-01 15:41:31,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17718 states. [2020-12-01 15:41:31,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17718 states to 17718 states and 18805 transitions. [2020-12-01 15:41:31,958 INFO L78 Accepts]: Start accepts. Automaton has 17718 states and 18805 transitions. Word has length 774 [2020-12-01 15:41:31,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:31,958 INFO L481 AbstractCegarLoop]: Abstraction has 17718 states and 18805 transitions. [2020-12-01 15:41:31,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:41:31,959 INFO L276 IsEmpty]: Start isEmpty. Operand 17718 states and 18805 transitions. [2020-12-01 15:41:31,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2020-12-01 15:41:31,983 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:31,984 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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] [2020-12-01 15:41:31,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-01 15:41:31,984 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:31,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:31,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1385511433, now seen corresponding path program 1 times [2020-12-01 15:41:31,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:41:31,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629120750] [2020-12-01 15:41:31,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:41:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:33,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1913 backedges. 1223 proven. 0 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked. [2020-12-01 15:41:33,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629120750] [2020-12-01 15:41:33,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:41:33,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:41:33,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088837633] [2020-12-01 15:41:33,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:41:33,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:41:33,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:41:33,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:41:33,280 INFO L87 Difference]: Start difference. First operand 17718 states and 18805 transitions. Second operand 4 states. [2020-12-01 15:41:35,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:35,508 INFO L93 Difference]: Finished difference Result 38387 states and 40785 transitions. [2020-12-01 15:41:35,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:41:35,509 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 790 [2020-12-01 15:41:35,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:35,529 INFO L225 Difference]: With dead ends: 38387 [2020-12-01 15:41:35,529 INFO L226 Difference]: Without dead ends: 21039 [2020-12-01 15:41:35,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:41:35,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21039 states. [2020-12-01 15:41:35,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21039 to 19561. [2020-12-01 15:41:35,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19561 states. [2020-12-01 15:41:35,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19561 states to 19561 states and 20690 transitions. [2020-12-01 15:41:35,813 INFO L78 Accepts]: Start accepts. Automaton has 19561 states and 20690 transitions. Word has length 790 [2020-12-01 15:41:35,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:35,814 INFO L481 AbstractCegarLoop]: Abstraction has 19561 states and 20690 transitions. [2020-12-01 15:41:35,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:41:35,814 INFO L276 IsEmpty]: Start isEmpty. Operand 19561 states and 20690 transitions. [2020-12-01 15:41:35,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 902 [2020-12-01 15:41:35,834 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:35,835 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 15:41:35,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-01 15:41:35,836 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:35,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:35,837 INFO L82 PathProgramCache]: Analyzing trace with hash -2145423597, now seen corresponding path program 1 times [2020-12-01 15:41:35,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:41:35,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308740099] [2020-12-01 15:41:35,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:41:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:36,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2261 backedges. 1145 proven. 0 refuted. 0 times theorem prover too weak. 1116 trivial. 0 not checked. [2020-12-01 15:41:36,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308740099] [2020-12-01 15:41:36,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:41:36,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:41:36,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486932106] [2020-12-01 15:41:36,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:41:36,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:41:36,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:41:36,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:41:36,775 INFO L87 Difference]: Start difference. First operand 19561 states and 20690 transitions. Second operand 3 states. [2020-12-01 15:41:37,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:37,562 INFO L93 Difference]: Finished difference Result 37647 states and 39853 transitions. [2020-12-01 15:41:37,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:41:37,563 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 901 [2020-12-01 15:41:37,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:37,580 INFO L225 Difference]: With dead ends: 37647 [2020-12-01 15:41:37,580 INFO L226 Difference]: Without dead ends: 19560 [2020-12-01 15:41:37,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:41:37,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19560 states. [2020-12-01 15:41:37,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19560 to 19560. [2020-12-01 15:41:37,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19560 states. [2020-12-01 15:41:37,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19560 states to 19560 states and 20687 transitions. [2020-12-01 15:41:37,860 INFO L78 Accepts]: Start accepts. Automaton has 19560 states and 20687 transitions. Word has length 901 [2020-12-01 15:41:37,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:37,861 INFO L481 AbstractCegarLoop]: Abstraction has 19560 states and 20687 transitions. [2020-12-01 15:41:37,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:41:37,861 INFO L276 IsEmpty]: Start isEmpty. Operand 19560 states and 20687 transitions. [2020-12-01 15:41:37,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 918 [2020-12-01 15:41:37,880 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:37,881 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 15:41:37,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-01 15:41:37,881 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:37,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:37,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1565720215, now seen corresponding path program 1 times [2020-12-01 15:41:37,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:41:37,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579705898] [2020-12-01 15:41:37,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:41:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:38,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2277 backedges. 1609 proven. 0 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2020-12-01 15:41:38,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579705898] [2020-12-01 15:41:38,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:41:38,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:41:38,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826931833] [2020-12-01 15:41:38,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:41:38,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:41:38,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:41:38,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:41:38,992 INFO L87 Difference]: Start difference. First operand 19560 states and 20687 transitions. Second operand 3 states. [2020-12-01 15:41:40,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:40,426 INFO L93 Difference]: Finished difference Result 38934 states and 41227 transitions. [2020-12-01 15:41:40,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:41:40,427 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 917 [2020-12-01 15:41:40,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:40,445 INFO L225 Difference]: With dead ends: 38934 [2020-12-01 15:41:40,446 INFO L226 Difference]: Without dead ends: 20848 [2020-12-01 15:41:40,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:41:40,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20848 states. [2020-12-01 15:41:40,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20848 to 18637. [2020-12-01 15:41:40,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18637 states. [2020-12-01 15:41:40,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18637 states to 18637 states and 19727 transitions. [2020-12-01 15:41:40,717 INFO L78 Accepts]: Start accepts. Automaton has 18637 states and 19727 transitions. Word has length 917 [2020-12-01 15:41:40,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:40,718 INFO L481 AbstractCegarLoop]: Abstraction has 18637 states and 19727 transitions. [2020-12-01 15:41:40,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:41:40,718 INFO L276 IsEmpty]: Start isEmpty. Operand 18637 states and 19727 transitions. [2020-12-01 15:41:40,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 990 [2020-12-01 15:41:40,737 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:40,738 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2020-12-01 15:41:40,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-01 15:41:40,738 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:40,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:40,739 INFO L82 PathProgramCache]: Analyzing trace with hash -2128879235, now seen corresponding path program 1 times [2020-12-01 15:41:40,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:41:40,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950819143] [2020-12-01 15:41:40,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:41:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:41,909 INFO L134 CoverageAnalysis]: Checked inductivity of 3204 backedges. 1689 proven. 0 refuted. 0 times theorem prover too weak. 1515 trivial. 0 not checked. [2020-12-01 15:41:41,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950819143] [2020-12-01 15:41:41,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:41:41,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:41:41,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143133803] [2020-12-01 15:41:41,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:41:41,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:41:41,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:41:41,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:41:41,912 INFO L87 Difference]: Start difference. First operand 18637 states and 19727 transitions. Second operand 3 states. [2020-12-01 15:41:43,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:43,202 INFO L93 Difference]: Finished difference Result 35425 states and 37461 transitions. [2020-12-01 15:41:43,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:41:43,203 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 989 [2020-12-01 15:41:43,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:43,220 INFO L225 Difference]: With dead ends: 35425 [2020-12-01 15:41:43,221 INFO L226 Difference]: Without dead ends: 17894 [2020-12-01 15:41:43,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:41:43,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17894 states. [2020-12-01 15:41:43,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17894 to 16053. [2020-12-01 15:41:43,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16053 states. [2020-12-01 15:41:43,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16053 states to 16053 states and 16873 transitions. [2020-12-01 15:41:43,460 INFO L78 Accepts]: Start accepts. Automaton has 16053 states and 16873 transitions. Word has length 989 [2020-12-01 15:41:43,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:43,461 INFO L481 AbstractCegarLoop]: Abstraction has 16053 states and 16873 transitions. [2020-12-01 15:41:43,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:41:43,461 INFO L276 IsEmpty]: Start isEmpty. Operand 16053 states and 16873 transitions. [2020-12-01 15:41:43,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1048 [2020-12-01 15:41:43,487 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:43,488 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:41:43,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-01 15:41:43,489 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:43,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:43,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1863757142, now seen corresponding path program 1 times [2020-12-01 15:41:43,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:41:43,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816705026] [2020-12-01 15:41:43,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:41:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:45,158 INFO L134 CoverageAnalysis]: Checked inductivity of 3520 backedges. 1732 proven. 0 refuted. 0 times theorem prover too weak. 1788 trivial. 0 not checked. [2020-12-01 15:41:45,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816705026] [2020-12-01 15:41:45,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:41:45,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:41:45,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820597753] [2020-12-01 15:41:45,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:41:45,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:41:45,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:41:45,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:41:45,161 INFO L87 Difference]: Start difference. First operand 16053 states and 16873 transitions. Second operand 3 states. [2020-12-01 15:41:45,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:45,893 INFO L93 Difference]: Finished difference Result 30815 states and 32415 transitions. [2020-12-01 15:41:45,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:41:45,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1047 [2020-12-01 15:41:45,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:45,909 INFO L225 Difference]: With dead ends: 30815 [2020-12-01 15:41:45,909 INFO L226 Difference]: Without dead ends: 16052 [2020-12-01 15:41:45,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:41:45,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16052 states. [2020-12-01 15:41:46,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16052 to 16052. [2020-12-01 15:41:46,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16052 states. [2020-12-01 15:41:46,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16052 states to 16052 states and 16871 transitions. [2020-12-01 15:41:46,130 INFO L78 Accepts]: Start accepts. Automaton has 16052 states and 16871 transitions. Word has length 1047 [2020-12-01 15:41:46,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:46,131 INFO L481 AbstractCegarLoop]: Abstraction has 16052 states and 16871 transitions. [2020-12-01 15:41:46,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:41:46,131 INFO L276 IsEmpty]: Start isEmpty. Operand 16052 states and 16871 transitions. [2020-12-01 15:41:46,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1141 [2020-12-01 15:41:46,152 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:46,152 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:41:46,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-01 15:41:46,153 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:46,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:46,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1055780727, now seen corresponding path program 1 times [2020-12-01 15:41:46,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:41:46,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15319631] [2020-12-01 15:41:46,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:41:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:47,728 INFO L134 CoverageAnalysis]: Checked inductivity of 4314 backedges. 3101 proven. 0 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2020-12-01 15:41:47,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15319631] [2020-12-01 15:41:47,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:41:47,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:41:47,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950095274] [2020-12-01 15:41:47,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:41:47,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:41:47,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:41:47,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:41:47,732 INFO L87 Difference]: Start difference. First operand 16052 states and 16871 transitions. Second operand 4 states. [2020-12-01 15:41:49,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:49,944 INFO L93 Difference]: Finished difference Result 35611 states and 37392 transitions. [2020-12-01 15:41:49,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:41:49,945 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1140 [2020-12-01 15:41:49,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:49,963 INFO L225 Difference]: With dead ends: 35611 [2020-12-01 15:41:49,963 INFO L226 Difference]: Without dead ends: 19745 [2020-12-01 15:41:49,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:41:49,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19745 states. [2020-12-01 15:41:50,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19745 to 15140. [2020-12-01 15:41:50,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15140 states. [2020-12-01 15:41:50,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15140 states to 15140 states and 15874 transitions. [2020-12-01 15:41:50,210 INFO L78 Accepts]: Start accepts. Automaton has 15140 states and 15874 transitions. Word has length 1140 [2020-12-01 15:41:50,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:50,211 INFO L481 AbstractCegarLoop]: Abstraction has 15140 states and 15874 transitions. [2020-12-01 15:41:50,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:41:50,211 INFO L276 IsEmpty]: Start isEmpty. Operand 15140 states and 15874 transitions. [2020-12-01 15:41:50,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1774 [2020-12-01 15:41:50,243 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:50,244 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:41:50,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-01 15:41:50,244 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:50,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:50,245 INFO L82 PathProgramCache]: Analyzing trace with hash 860212449, now seen corresponding path program 1 times [2020-12-01 15:41:50,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:41:50,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025607445] [2020-12-01 15:41:50,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:41:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:56,092 INFO L134 CoverageAnalysis]: Checked inductivity of 9562 backedges. 5094 proven. 277 refuted. 0 times theorem prover too weak. 4191 trivial. 0 not checked. [2020-12-01 15:41:56,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025607445] [2020-12-01 15:41:56,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846222996] [2020-12-01 15:41:56,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:41:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:56,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 2203 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-01 15:41:56,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:41:58,118 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:41:58,119 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-01 15:41:58,123 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-01 15:42:04,384 INFO L134 CoverageAnalysis]: Checked inductivity of 9562 backedges. 5481 proven. 353 refuted. 0 times theorem prover too weak. 3728 trivial. 0 not checked. [2020-12-01 15:42:04,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:42:04,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 9 [2020-12-01 15:42:04,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600881999] [2020-12-01 15:42:04,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-01 15:42:04,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:42:04,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-01 15:42:04,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:42:04,389 INFO L87 Difference]: Start difference. First operand 15140 states and 15874 transitions. Second operand 10 states. [2020-12-01 15:42:11,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:11,565 INFO L93 Difference]: Finished difference Result 31850 states and 33376 transitions. [2020-12-01 15:42:11,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-01 15:42:11,566 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1773 [2020-12-01 15:42:11,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:11,580 INFO L225 Difference]: With dead ends: 31850 [2020-12-01 15:42:11,580 INFO L226 Difference]: Without dead ends: 16896 [2020-12-01 15:42:11,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1788 GetRequests, 1768 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2020-12-01 15:42:11,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16896 states. [2020-12-01 15:42:11,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16896 to 15324. [2020-12-01 15:42:11,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15324 states. [2020-12-01 15:42:11,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15324 states to 15324 states and 16042 transitions. [2020-12-01 15:42:11,824 INFO L78 Accepts]: Start accepts. Automaton has 15324 states and 16042 transitions. Word has length 1773 [2020-12-01 15:42:11,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:11,825 INFO L481 AbstractCegarLoop]: Abstraction has 15324 states and 16042 transitions. [2020-12-01 15:42:11,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-01 15:42:11,825 INFO L276 IsEmpty]: Start isEmpty. Operand 15324 states and 16042 transitions. [2020-12-01 15:42:11,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1887 [2020-12-01 15:42:11,862 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:42:11,863 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:42:12,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2020-12-01 15:42:12,064 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:42:12,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:12,065 INFO L82 PathProgramCache]: Analyzing trace with hash -318933901, now seen corresponding path program 1 times [2020-12-01 15:42:12,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:42:12,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930667107] [2020-12-01 15:42:12,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:42:12,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:18,656 INFO L134 CoverageAnalysis]: Checked inductivity of 10999 backedges. 6496 proven. 312 refuted. 0 times theorem prover too weak. 4191 trivial. 0 not checked. [2020-12-01 15:42:18,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930667107] [2020-12-01 15:42:18,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563921156] [2020-12-01 15:42:18,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:42:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:19,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 2340 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:42:19,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:42:24,100 INFO L134 CoverageAnalysis]: Checked inductivity of 10999 backedges. 6365 proven. 0 refuted. 0 times theorem prover too weak. 4634 trivial. 0 not checked. [2020-12-01 15:42:24,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:42:24,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2020-12-01 15:42:24,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115647130] [2020-12-01 15:42:24,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:42:24,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:42:24,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:42:24,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:42:24,106 INFO L87 Difference]: Start difference. First operand 15324 states and 16042 transitions. Second operand 4 states. [2020-12-01 15:42:25,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:25,778 INFO L93 Difference]: Finished difference Result 23634 states and 24731 transitions. [2020-12-01 15:42:25,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:42:25,779 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1886 [2020-12-01 15:42:25,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:25,780 INFO L225 Difference]: With dead ends: 23634 [2020-12-01 15:42:25,780 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:42:25,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1891 GetRequests, 1884 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:42:25,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:42:25,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:42:25,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:42:25,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:42:25,787 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1886 [2020-12-01 15:42:25,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:25,788 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:42:25,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:42:25,788 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:42:25,788 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:42:25,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-12-01 15:42:25,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:42:35,097 WARN L197 SmtUtils]: Spent 9.09 s on a formula simplification. DAG size of input: 1678 DAG size of output: 1190 [2020-12-01 15:42:43,336 WARN L197 SmtUtils]: Spent 8.23 s on a formula simplification. DAG size of input: 1672 DAG size of output: 1187 [2020-12-01 15:42:59,588 WARN L197 SmtUtils]: Spent 16.24 s on a formula simplification. DAG size of input: 1092 DAG size of output: 170 [2020-12-01 15:43:15,850 WARN L197 SmtUtils]: Spent 16.25 s on a formula simplification. DAG size of input: 1091 DAG size of output: 169 [2020-12-01 15:43:15,853 INFO L262 CegarLoopResult]: For program point L498(lines 498 509) no Hoare annotation was computed. [2020-12-01 15:43:15,854 INFO L262 CegarLoopResult]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,854 INFO L262 CegarLoopResult]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2020-12-01 15:43:15,854 INFO L262 CegarLoopResult]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,854 INFO L262 CegarLoopResult]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,854 INFO L262 CegarLoopResult]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,854 INFO L262 CegarLoopResult]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,855 INFO L262 CegarLoopResult]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,855 INFO L262 CegarLoopResult]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,855 INFO L262 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-12-01 15:43:15,855 INFO L262 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-12-01 15:43:15,855 INFO L262 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-12-01 15:43:15,857 INFO L262 CegarLoopResult]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,857 INFO L262 CegarLoopResult]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,857 INFO L262 CegarLoopResult]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,858 INFO L262 CegarLoopResult]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,858 INFO L262 CegarLoopResult]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,858 INFO L262 CegarLoopResult]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,858 INFO L262 CegarLoopResult]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,858 INFO L262 CegarLoopResult]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,858 INFO L262 CegarLoopResult]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,858 INFO L262 CegarLoopResult]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,858 INFO L262 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-12-01 15:43:15,858 INFO L262 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-12-01 15:43:15,859 INFO L262 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-12-01 15:43:15,859 INFO L262 CegarLoopResult]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,859 INFO L262 CegarLoopResult]: For program point L768(lines 768 778) no Hoare annotation was computed. [2020-12-01 15:43:15,859 INFO L262 CegarLoopResult]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2020-12-01 15:43:15,859 INFO L262 CegarLoopResult]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,860 INFO L262 CegarLoopResult]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,860 INFO L262 CegarLoopResult]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,860 INFO L262 CegarLoopResult]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,860 INFO L262 CegarLoopResult]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,860 INFO L262 CegarLoopResult]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,860 INFO L262 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-12-01 15:43:15,860 INFO L262 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-12-01 15:43:15,860 INFO L262 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-12-01 15:43:15,860 INFO L262 CegarLoopResult]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,860 INFO L262 CegarLoopResult]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,860 INFO L262 CegarLoopResult]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,861 INFO L258 CegarLoopResult]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse32 (+ ~a23~0 43)) (.cse17 (<= 312 ~a23~0)) (.cse12 (< 245 ~a29~0)) (.cse27 (<= ~a23~0 138)) (.cse8 (= ~a4~0 1)) (.cse20 (<= ~a25~0 9)) (.cse21 (<= ~a25~0 10)) (.cse25 (<= 278 ~a29~0)) (.cse23 (= ~a25~0 13)) (.cse22 (<= ~a23~0 312)) (.cse2 (= ~a8~0 15)) (.cse5 (= ~a3~0 1))) (let ((.cse0 (<= ~a4~0 0)) (.cse6 (<= (+ ~a23~0 55) 0)) (.cse9 (<= (+ ~a29~0 22) 0)) (.cse14 (<= 0 (+ ~a29~0 580294))) (.cse18 (<= ~a29~0 220)) (.cse15 (= ~a25~0 11)) (.cse4 (<= ~a29~0 245)) (.cse26 (<= ~a25~0 11)) (.cse7 (let ((.cse33 (<= 130 ~a29~0))) (or (and .cse27 .cse33 .cse8) (and .cse20 (<= ~a29~0 140) .cse22 .cse33 .cse2 .cse5) (and (or (and .cse21 .cse25 (<= (+ ~a23~0 599772) 0)) (and .cse25 .cse23 .cse22)) .cse2 .cse5)))) (.cse13 (= ~a25~0 10)) (.cse10 (not (= 6 ULTIMATE.start_calculate_output_~input))) (.cse1 (<= 141 ~a29~0)) (.cse11 (<= ~a29~0 275)) (.cse24 (or (and .cse21 .cse17 .cse12 .cse2 .cse8) (and .cse21 .cse8 (<= 247 ~a29~0)))) (.cse19 (<= ~a23~0 600000)) (.cse29 (< 0 .cse32)) (.cse30 (<= ~a29~0 599998)) (.cse28 (<= ~a29~0 274)) (.cse16 (<= .cse32 0)) (.cse3 (= ~a25~0 12))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and (<= 27009 ~a29~0) .cse2 .cse7 .cse8 .cse5) (and .cse0 .cse9 .cse10 .cse2 .cse3 .cse5 .cse6) (and .cse11 .cse0 .cse12 .cse2 .cse3 .cse5) (and (< 140 ~a29~0) .cse2 .cse7 .cse4 .cse5) (and (or (and .cse13 .cse9 .cse14 .cse6) (and .cse15 .cse9 .cse16 .cse14)) .cse2 .cse5) (and .cse17 .cse15 .cse1 .cse2 .cse18 .cse19 .cse8 .cse5) (and .cse13 .cse1 .cse2 .cse4 .cse5 .cse8) (and .cse1 .cse2 .cse3 .cse19 .cse5 .cse8 (<= ~a29~0 232)) (and .cse20 .cse9 .cse2 .cse16 .cse14 .cse5) (and .cse17 .cse21 .cse1 .cse2 .cse4 .cse8 .cse5) (and .cse20 .cse22 .cse2 .cse18 .cse8 .cse5) (and .cse15 .cse12 .cse2 .cse19 .cse8 .cse5) (and .cse23 .cse2 .cse19 .cse4 .cse8 .cse5) (and .cse24 (= ~a25~0 9) (<= ~a23~0 306) .cse2 .cse5) (and .cse25 .cse2 .cse26 .cse19 .cse8 .cse5) (and .cse27 (<= ~a29~0 130) .cse8) (and .cse26 .cse7 .cse8) (and (< 306 ~a23~0) .cse13 .cse2 .cse19 (or .cse10 .cse1) .cse8 .cse5) (and (or (and .cse24 .cse11 .cse20 .cse2) (and .cse24 .cse2 .cse28)) .cse19 .cse5) (and .cse22 .cse2 .cse3 .cse29 .cse8 .cse5) (and .cse12 .cse2 .cse3 .cse30 .cse19 .cse8 .cse29 .cse5) (and .cse23 .cse2 .cse30 .cse19 .cse8 .cse29 .cse5) (and (let ((.cse31 (or (and .cse21 .cse25) (and .cse12 .cse3)))) (or (and .cse31 .cse20 .cse30 .cse16) (and .cse31 .cse28 .cse16))) .cse2 .cse5)))) [2020-12-01 15:43:15,861 INFO L262 CegarLoopResult]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,861 INFO L262 CegarLoopResult]: For program point L705(lines 705 715) no Hoare annotation was computed. [2020-12-01 15:43:15,861 INFO L262 CegarLoopResult]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2020-12-01 15:43:15,861 INFO L262 CegarLoopResult]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,861 INFO L262 CegarLoopResult]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,861 INFO L262 CegarLoopResult]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,861 INFO L262 CegarLoopResult]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,861 INFO L262 CegarLoopResult]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,862 INFO L262 CegarLoopResult]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,862 INFO L262 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-12-01 15:43:15,862 INFO L262 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-12-01 15:43:15,862 INFO L262 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-12-01 15:43:15,862 INFO L265 CegarLoopResult]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2020-12-01 15:43:15,862 INFO L262 CegarLoopResult]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,862 INFO L262 CegarLoopResult]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,862 INFO L262 CegarLoopResult]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,862 INFO L262 CegarLoopResult]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,862 INFO L262 CegarLoopResult]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,862 INFO L262 CegarLoopResult]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,862 INFO L262 CegarLoopResult]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,862 INFO L262 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-12-01 15:43:15,862 INFO L262 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-12-01 15:43:15,862 INFO L262 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-12-01 15:43:15,863 INFO L262 CegarLoopResult]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,863 INFO L262 CegarLoopResult]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,864 INFO L262 CegarLoopResult]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,864 INFO L262 CegarLoopResult]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,864 INFO L262 CegarLoopResult]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,864 INFO L262 CegarLoopResult]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,865 INFO L262 CegarLoopResult]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,865 INFO L262 CegarLoopResult]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,865 INFO L262 CegarLoopResult]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,865 INFO L262 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-12-01 15:43:15,865 INFO L262 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-12-01 15:43:15,865 INFO L262 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-12-01 15:43:15,865 INFO L262 CegarLoopResult]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,866 INFO L258 CegarLoopResult]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse34 (+ ~a23~0 43)) (.cse8 (<= 312 ~a23~0)) (.cse28 (< 245 ~a29~0)) (.cse31 (<= ~a23~0 138)) (.cse12 (= ~a4~0 1)) (.cse13 (<= ~a25~0 9)) (.cse24 (<= 130 ~a29~0)) (.cse17 (<= ~a25~0 10)) (.cse19 (<= 278 ~a29~0)) (.cse21 (= ~a25~0 13)) (.cse18 (<= ~a23~0 312)) (.cse2 (= ~a8~0 15)) (.cse5 (= ~a3~0 1))) (let ((.cse10 (<= ~a29~0 220)) (.cse0 (<= ~a4~0 0)) (.cse6 (<= (+ ~a23~0 55) 0)) (.cse14 (<= (+ ~a29~0 22) 0)) (.cse16 (<= 0 (+ ~a29~0 580294))) (.cse9 (= ~a25~0 11)) (.cse4 (<= ~a29~0 245)) (.cse25 (<= ~a29~0 130)) (.cse20 (<= ~a25~0 11)) (.cse7 (or (and .cse31 .cse24 .cse12) (and .cse13 (<= ~a29~0 140) .cse18 .cse24 .cse2 .cse5) (and (or (and .cse17 .cse19 (<= (+ ~a23~0 599772) 0)) (and .cse19 .cse21 .cse18)) .cse2 .cse5))) (.cse29 (= ~a25~0 10)) (.cse26 (not (= 6 ULTIMATE.start_calculate_output_~input))) (.cse1 (<= 141 ~a29~0)) (.cse27 (<= ~a29~0 275)) (.cse30 (or (and .cse17 .cse8 .cse28 .cse2 .cse12) (and .cse17 .cse12 (<= 247 ~a29~0)))) (.cse11 (<= ~a23~0 600000)) (.cse23 (< 0 .cse34)) (.cse22 (<= ~a29~0 599998)) (.cse32 (<= ~a29~0 274)) (.cse15 (<= .cse34 0)) (.cse3 (= ~a25~0 12))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and (< 140 ~a29~0) .cse2 .cse7 .cse4 .cse5) (and .cse8 .cse9 .cse1 .cse2 .cse10 .cse11 .cse12 .cse5) (and .cse1 .cse2 .cse3 .cse11 .cse5 .cse12 (<= ~a29~0 232)) (and .cse13 .cse14 .cse2 .cse15 .cse16 .cse5) (and .cse8 .cse17 .cse1 .cse2 .cse4 .cse12 .cse5) (and .cse13 .cse18 .cse2 .cse10 .cse12 .cse5) (and .cse19 .cse2 .cse20 .cse11 .cse12 .cse5) (and .cse21 .cse2 .cse22 .cse11 .cse12 .cse23 .cse5) (and .cse8 .cse17 .cse18 .cse24 .cse25 .cse2 .cse12 .cse5) (and (<= 27009 ~a29~0) .cse2 .cse7 .cse12 .cse5) (and .cse0 .cse14 .cse26 .cse2 .cse3 .cse5 .cse6) (and .cse27 .cse0 .cse28 .cse2 .cse3 .cse5) (and (or (and .cse29 .cse14 .cse16 .cse6) (and .cse9 .cse14 .cse15 .cse16)) .cse2 .cse5) (and .cse29 .cse1 .cse2 .cse4 .cse5 .cse12) (and .cse9 .cse28 .cse2 .cse11 .cse12 .cse5) (and .cse21 .cse2 .cse11 .cse4 .cse12 .cse5) (and .cse30 (= ~a25~0 9) (<= ~a23~0 306) .cse2 .cse5) (and .cse31 .cse25 .cse12) (and .cse20 .cse7 .cse12) (and (< 306 ~a23~0) .cse29 .cse2 .cse11 (or .cse26 .cse1) .cse12 .cse5) (and (or (and .cse30 .cse27 .cse13 .cse2) (and .cse30 .cse2 .cse32)) .cse11 .cse5) (and .cse18 .cse2 .cse3 .cse23 .cse12 .cse5) (and .cse28 .cse2 .cse3 .cse22 .cse11 .cse12 .cse23 .cse5) (and (let ((.cse33 (or (and .cse17 .cse19) (and .cse28 .cse3)))) (or (and .cse33 .cse13 .cse22 .cse15) (and .cse33 .cse32 .cse15))) .cse2 .cse5)))) [2020-12-01 15:43:15,866 INFO L262 CegarLoopResult]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,867 INFO L262 CegarLoopResult]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,867 INFO L262 CegarLoopResult]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,867 INFO L262 CegarLoopResult]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,867 INFO L262 CegarLoopResult]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,867 INFO L262 CegarLoopResult]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,867 INFO L262 CegarLoopResult]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,867 INFO L262 CegarLoopResult]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,868 INFO L262 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-12-01 15:43:15,868 INFO L262 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-12-01 15:43:15,868 INFO L262 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-12-01 15:43:15,868 INFO L262 CegarLoopResult]: For program point L980(lines 980 990) no Hoare annotation was computed. [2020-12-01 15:43:15,868 INFO L262 CegarLoopResult]: For program point L914(lines 914 924) no Hoare annotation was computed. [2020-12-01 15:43:15,868 INFO L262 CegarLoopResult]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2020-12-01 15:43:15,869 INFO L262 CegarLoopResult]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2020-12-01 15:43:15,869 INFO L262 CegarLoopResult]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,869 INFO L262 CegarLoopResult]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,869 INFO L262 CegarLoopResult]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,869 INFO L262 CegarLoopResult]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,869 INFO L262 CegarLoopResult]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,869 INFO L262 CegarLoopResult]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,870 INFO L262 CegarLoopResult]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,870 INFO L262 CegarLoopResult]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,870 INFO L262 CegarLoopResult]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,870 INFO L262 CegarLoopResult]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,870 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:43:15,870 INFO L262 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-12-01 15:43:15,871 INFO L262 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-12-01 15:43:15,871 INFO L262 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-12-01 15:43:15,871 INFO L262 CegarLoopResult]: For program point L1049(line 1049) no Hoare annotation was computed. [2020-12-01 15:43:15,871 INFO L262 CegarLoopResult]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,871 INFO L262 CegarLoopResult]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,871 INFO L262 CegarLoopResult]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,871 INFO L262 CegarLoopResult]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,872 INFO L262 CegarLoopResult]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,872 INFO L262 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-12-01 15:43:15,872 INFO L262 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-12-01 15:43:15,872 INFO L262 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-12-01 15:43:15,872 INFO L262 CegarLoopResult]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,872 INFO L262 CegarLoopResult]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,872 INFO L262 CegarLoopResult]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,873 INFO L262 CegarLoopResult]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,873 INFO L262 CegarLoopResult]: For program point L525(lines 525 535) no Hoare annotation was computed. [2020-12-01 15:43:15,873 INFO L262 CegarLoopResult]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2020-12-01 15:43:15,873 INFO L262 CegarLoopResult]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,873 INFO L262 CegarLoopResult]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,873 INFO L262 CegarLoopResult]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,873 INFO L262 CegarLoopResult]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,874 INFO L262 CegarLoopResult]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,874 INFO L262 CegarLoopResult]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,874 INFO L262 CegarLoopResult]: For program point L658(lines 658 667) no Hoare annotation was computed. [2020-12-01 15:43:15,874 INFO L262 CegarLoopResult]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2020-12-01 15:43:15,874 INFO L262 CegarLoopResult]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,874 INFO L262 CegarLoopResult]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,875 INFO L262 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-12-01 15:43:15,875 INFO L262 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-12-01 15:43:15,875 INFO L262 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-12-01 15:43:15,875 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:43:15,875 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-01 15:43:15,875 INFO L262 CegarLoopResult]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,875 INFO L262 CegarLoopResult]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,876 INFO L262 CegarLoopResult]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,876 INFO L262 CegarLoopResult]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,876 INFO L262 CegarLoopResult]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,876 INFO L262 CegarLoopResult]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,876 INFO L262 CegarLoopResult]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,876 INFO L262 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-12-01 15:43:15,876 INFO L262 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-12-01 15:43:15,877 INFO L262 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-12-01 15:43:15,877 INFO L262 CegarLoopResult]: For program point L926(lines 926 936) no Hoare annotation was computed. [2020-12-01 15:43:15,877 INFO L262 CegarLoopResult]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2020-12-01 15:43:15,877 INFO L262 CegarLoopResult]: For program point L728(lines 728 740) no Hoare annotation was computed. [2020-12-01 15:43:15,877 INFO L262 CegarLoopResult]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2020-12-01 15:43:15,877 INFO L262 CegarLoopResult]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,877 INFO L262 CegarLoopResult]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,878 INFO L262 CegarLoopResult]: For program point L597(lines 597 607) no Hoare annotation was computed. [2020-12-01 15:43:15,878 INFO L262 CegarLoopResult]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2020-12-01 15:43:15,878 INFO L262 CegarLoopResult]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,878 INFO L262 CegarLoopResult]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,878 INFO L262 CegarLoopResult]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,878 INFO L262 CegarLoopResult]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,879 INFO L262 CegarLoopResult]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,879 INFO L262 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-12-01 15:43:15,879 INFO L262 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-12-01 15:43:15,879 INFO L262 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-12-01 15:43:15,879 INFO L262 CegarLoopResult]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,879 INFO L262 CegarLoopResult]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,879 INFO L262 CegarLoopResult]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,880 INFO L262 CegarLoopResult]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,880 INFO L262 CegarLoopResult]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,880 INFO L262 CegarLoopResult]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,880 INFO L262 CegarLoopResult]: For program point L205(line 205) no Hoare annotation was computed. [2020-12-01 15:43:15,880 INFO L262 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-12-01 15:43:15,880 INFO L262 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-12-01 15:43:15,880 INFO L262 CegarLoopResult]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,881 INFO L262 CegarLoopResult]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,881 INFO L262 CegarLoopResult]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,881 INFO L262 CegarLoopResult]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,881 INFO L262 CegarLoopResult]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,881 INFO L262 CegarLoopResult]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,881 INFO L262 CegarLoopResult]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,881 INFO L262 CegarLoopResult]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,882 INFO L262 CegarLoopResult]: For program point L208(line 208) no Hoare annotation was computed. [2020-12-01 15:43:15,882 INFO L262 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-12-01 15:43:15,882 INFO L262 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-12-01 15:43:15,882 INFO L262 CegarLoopResult]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,882 INFO L262 CegarLoopResult]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,882 INFO L262 CegarLoopResult]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,883 INFO L262 CegarLoopResult]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,883 INFO L262 CegarLoopResult]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,883 INFO L262 CegarLoopResult]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,883 INFO L262 CegarLoopResult]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,883 INFO L262 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-01 15:43:15,883 INFO L262 CegarLoopResult]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,883 INFO L262 CegarLoopResult]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,884 INFO L262 CegarLoopResult]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,884 INFO L262 CegarLoopResult]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,884 INFO L262 CegarLoopResult]: For program point L409(lines 409 420) no Hoare annotation was computed. [2020-12-01 15:43:15,884 INFO L262 CegarLoopResult]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2020-12-01 15:43:15,884 INFO L262 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-12-01 15:43:15,884 INFO L262 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-12-01 15:43:15,884 INFO L262 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-12-01 15:43:15,885 INFO L262 CegarLoopResult]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,885 INFO L262 CegarLoopResult]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,885 INFO L262 CegarLoopResult]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,885 INFO L262 CegarLoopResult]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,885 INFO L262 CegarLoopResult]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,885 INFO L262 CegarLoopResult]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,885 INFO L262 CegarLoopResult]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,886 INFO L262 CegarLoopResult]: For program point L214(line 214) no Hoare annotation was computed. [2020-12-01 15:43:15,886 INFO L262 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-12-01 15:43:15,886 INFO L262 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-12-01 15:43:15,886 INFO L262 CegarLoopResult]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,886 INFO L262 CegarLoopResult]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,886 INFO L262 CegarLoopResult]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,887 INFO L262 CegarLoopResult]: For program point L876(lines 876 885) no Hoare annotation was computed. [2020-12-01 15:43:15,887 INFO L262 CegarLoopResult]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2020-12-01 15:43:15,887 INFO L262 CegarLoopResult]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,887 INFO L262 CegarLoopResult]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,887 INFO L262 CegarLoopResult]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,887 INFO L262 CegarLoopResult]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,887 INFO L262 CegarLoopResult]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,888 INFO L262 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-12-01 15:43:15,888 INFO L262 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-12-01 15:43:15,888 INFO L262 CegarLoopResult]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,888 INFO L262 CegarLoopResult]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,888 INFO L262 CegarLoopResult]: For program point L614(lines 614 624) no Hoare annotation was computed. [2020-12-01 15:43:15,888 INFO L262 CegarLoopResult]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2020-12-01 15:43:15,889 INFO L262 CegarLoopResult]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,889 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:43:15,889 INFO L262 CegarLoopResult]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,889 INFO L262 CegarLoopResult]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,889 INFO L262 CegarLoopResult]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,889 INFO L262 CegarLoopResult]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,889 INFO L262 CegarLoopResult]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,890 INFO L262 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-12-01 15:43:15,890 INFO L262 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-12-01 15:43:15,890 INFO L262 CegarLoopResult]: For program point L815(lines 815 825) no Hoare annotation was computed. [2020-12-01 15:43:15,890 INFO L262 CegarLoopResult]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2020-12-01 15:43:15,890 INFO L262 CegarLoopResult]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,890 INFO L262 CegarLoopResult]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,891 INFO L262 CegarLoopResult]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,891 INFO L262 CegarLoopResult]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,891 INFO L262 CegarLoopResult]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,891 INFO L262 CegarLoopResult]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,891 INFO L262 CegarLoopResult]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,891 INFO L262 CegarLoopResult]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,891 INFO L262 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-12-01 15:43:15,892 INFO L262 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-12-01 15:43:15,892 INFO L262 CegarLoopResult]: For program point L950(lines 950 962) no Hoare annotation was computed. [2020-12-01 15:43:15,892 INFO L262 CegarLoopResult]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2020-12-01 15:43:15,892 INFO L262 CegarLoopResult]: For program point L488(lines 488 496) no Hoare annotation was computed. [2020-12-01 15:43:15,892 INFO L262 CegarLoopResult]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2020-12-01 15:43:15,892 INFO L262 CegarLoopResult]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,892 INFO L262 CegarLoopResult]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,893 INFO L262 CegarLoopResult]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,893 INFO L262 CegarLoopResult]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,893 INFO L262 CegarLoopResult]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,893 INFO L262 CegarLoopResult]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,893 INFO L262 CegarLoopResult]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,893 INFO L262 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-12-01 15:43:15,894 INFO L262 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-12-01 15:43:15,894 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:43:15,894 INFO L262 CegarLoopResult]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,894 INFO L262 CegarLoopResult]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,894 INFO L262 CegarLoopResult]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,894 INFO L262 CegarLoopResult]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,895 INFO L262 CegarLoopResult]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,895 INFO L262 CegarLoopResult]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,895 INFO L262 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-12-01 15:43:15,895 INFO L262 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-12-01 15:43:15,895 INFO L262 CegarLoopResult]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,895 INFO L262 CegarLoopResult]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,895 INFO L262 CegarLoopResult]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,896 INFO L262 CegarLoopResult]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,896 INFO L262 CegarLoopResult]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,896 INFO L262 CegarLoopResult]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,896 INFO L262 CegarLoopResult]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,896 INFO L262 CegarLoopResult]: For program point L33(lines 33 35) no Hoare annotation was computed. [2020-12-01 15:43:15,896 INFO L262 CegarLoopResult]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2020-12-01 15:43:15,896 INFO L262 CegarLoopResult]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,897 INFO L262 CegarLoopResult]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,897 INFO L262 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-12-01 15:43:15,897 INFO L262 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-12-01 15:43:15,897 INFO L262 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-12-01 15:43:15,897 INFO L262 CegarLoopResult]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2020-12-01 15:43:15,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:43:15 BoogieIcfgContainer [2020-12-01 15:43:15,986 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:43:15,987 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:43:15,987 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:43:15,987 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:43:15,988 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:39:46" (3/4) ... [2020-12-01 15:43:15,992 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:43:16,044 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-01 15:43:16,046 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:43:16,049 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:43:16,051 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:43:16,298 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_368fa782-9ef2-47b7-b0d8-d4fddbd4b8b7/bin/uautomizer/witness.graphml [2020-12-01 15:43:16,298 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:43:16,299 INFO L168 Benchmark]: Toolchain (without parser) took 213927.28 ms. Allocated memory was 94.4 MB in the beginning and 3.5 GB in the end (delta: 3.4 GB). Free memory was 56.9 MB in the beginning and 3.1 GB in the end (delta: -3.0 GB). Peak memory consumption was 435.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:43:16,300 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 94.4 MB. Free memory was 76.6 MB in the beginning and 76.5 MB in the end (delta: 159.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:43:16,301 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1084.00 ms. Allocated memory is still 94.4 MB. Free memory was 56.8 MB in the beginning and 47.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:43:16,301 INFO L168 Benchmark]: Boogie Procedure Inliner took 239.82 ms. Allocated memory is still 94.4 MB. Free memory was 47.8 MB in the beginning and 59.9 MB in the end (delta: -12.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-01 15:43:16,302 INFO L168 Benchmark]: Boogie Preprocessor took 175.98 ms. Allocated memory is still 94.4 MB. Free memory was 59.9 MB in the beginning and 49.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:43:16,302 INFO L168 Benchmark]: RCFGBuilder took 2363.46 ms. Allocated memory was 94.4 MB in the beginning and 146.8 MB in the end (delta: 52.4 MB). Free memory was 49.4 MB in the beginning and 82.6 MB in the end (delta: -33.1 MB). Peak memory consumption was 52.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:43:16,303 INFO L168 Benchmark]: TraceAbstraction took 209739.74 ms. Allocated memory was 146.8 MB in the beginning and 3.5 GB in the end (delta: 3.4 GB). Free memory was 81.5 MB in the beginning and 3.1 GB in the end (delta: -3.0 GB). Peak memory consumption was 2.2 GB. Max. memory is 16.1 GB. [2020-12-01 15:43:16,303 INFO L168 Benchmark]: Witness Printer took 311.74 ms. Allocated memory is still 3.5 GB. Free memory was 3.1 GB in the beginning and 3.1 GB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:43:16,306 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 94.4 MB. Free memory was 76.6 MB in the beginning and 76.5 MB in the end (delta: 159.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1084.00 ms. Allocated memory is still 94.4 MB. Free memory was 56.8 MB in the beginning and 47.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 239.82 ms. Allocated memory is still 94.4 MB. Free memory was 47.8 MB in the beginning and 59.9 MB in the end (delta: -12.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 175.98 ms. Allocated memory is still 94.4 MB. Free memory was 59.9 MB in the beginning and 49.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2363.46 ms. Allocated memory was 94.4 MB in the beginning and 146.8 MB in the end (delta: 52.4 MB). Free memory was 49.4 MB in the beginning and 82.6 MB in the end (delta: -33.1 MB). Peak memory consumption was 52.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 209739.74 ms. Allocated memory was 146.8 MB in the beginning and 3.5 GB in the end (delta: 3.4 GB). Free memory was 81.5 MB in the beginning and 3.1 GB in the end (delta: -3.0 GB). Peak memory consumption was 2.2 GB. Max. memory is 16.1 GB. * Witness Printer took 311.74 ms. Allocated memory is still 3.5 GB. Free memory was 3.1 GB in the beginning and 3.1 GB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((a4 <= 0 && 141 <= a29) && a8 == 15) && a25 == 12) && a29 <= 245) && a3 == 1) && a23 + 55 <= 0) || ((((140 < a29 && a8 == 15) && ((((a23 <= 138 && 130 <= a29) && a4 == 1) || (((((a25 <= 9 && a29 <= 140) && a23 <= 312) && 130 <= a29) && a8 == 15) && a3 == 1)) || (((((a25 <= 10 && 278 <= a29) && a23 + 599772 <= 0) || ((278 <= a29 && a25 == 13) && a23 <= 312)) && a8 == 15) && a3 == 1))) && a29 <= 245) && a3 == 1)) || (((((((312 <= a23 && a25 == 11) && 141 <= a29) && a8 == 15) && a29 <= 220) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((141 <= a29 && a8 == 15) && a25 == 12) && a23 <= 600000) && a3 == 1) && a4 == 1) && a29 <= 232)) || (((((a25 <= 9 && a29 + 22 <= 0) && a8 == 15) && a23 + 43 <= 0) && 0 <= a29 + 580294) && a3 == 1)) || ((((((312 <= a23 && a25 <= 10) && 141 <= a29) && a8 == 15) && a29 <= 245) && a4 == 1) && a3 == 1)) || (((((a25 <= 9 && a23 <= 312) && a8 == 15) && a29 <= 220) && a4 == 1) && a3 == 1)) || (((((278 <= a29 && a8 == 15) && a25 <= 11) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((((((a25 == 13 && a8 == 15) && a29 <= 599998) && a23 <= 600000) && a4 == 1) && 0 < a23 + 43) && a3 == 1)) || (((((((312 <= a23 && a25 <= 10) && a23 <= 312) && 130 <= a29) && a29 <= 130) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((27009 <= a29 && a8 == 15) && ((((a23 <= 138 && 130 <= a29) && a4 == 1) || (((((a25 <= 9 && a29 <= 140) && a23 <= 312) && 130 <= a29) && a8 == 15) && a3 == 1)) || (((((a25 <= 10 && 278 <= a29) && a23 + 599772 <= 0) || ((278 <= a29 && a25 == 13) && a23 <= 312)) && a8 == 15) && a3 == 1))) && a4 == 1) && a3 == 1)) || ((((((a4 <= 0 && a29 + 22 <= 0) && !(6 == input)) && a8 == 15) && a25 == 12) && a3 == 1) && a23 + 55 <= 0)) || (((((a29 <= 275 && a4 <= 0) && 245 < a29) && a8 == 15) && a25 == 12) && a3 == 1)) || ((((((a25 == 10 && a29 + 22 <= 0) && 0 <= a29 + 580294) && a23 + 55 <= 0) || (((a25 == 11 && a29 + 22 <= 0) && a23 + 43 <= 0) && 0 <= a29 + 580294)) && a8 == 15) && a3 == 1)) || (((((a25 == 10 && 141 <= a29) && a8 == 15) && a29 <= 245) && a3 == 1) && a4 == 1)) || (((((a25 == 11 && 245 < a29) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || (((((a25 == 13 && a8 == 15) && a23 <= 600000) && a29 <= 245) && a4 == 1) && a3 == 1)) || (((((((((a25 <= 10 && 312 <= a23) && 245 < a29) && a8 == 15) && a4 == 1) || ((a25 <= 10 && a4 == 1) && 247 <= a29)) && a25 == 9) && a23 <= 306) && a8 == 15) && a3 == 1)) || ((a23 <= 138 && a29 <= 130) && a4 == 1)) || ((a25 <= 11 && ((((a23 <= 138 && 130 <= a29) && a4 == 1) || (((((a25 <= 9 && a29 <= 140) && a23 <= 312) && 130 <= a29) && a8 == 15) && a3 == 1)) || (((((a25 <= 10 && 278 <= a29) && a23 + 599772 <= 0) || ((278 <= a29 && a25 == 13) && a23 <= 312)) && a8 == 15) && a3 == 1))) && a4 == 1)) || ((((((306 < a23 && a25 == 10) && a8 == 15) && a23 <= 600000) && (!(6 == input) || 141 <= a29)) && a4 == 1) && a3 == 1)) || (((((((((((a25 <= 10 && 312 <= a23) && 245 < a29) && a8 == 15) && a4 == 1) || ((a25 <= 10 && a4 == 1) && 247 <= a29)) && a29 <= 275) && a25 <= 9) && a8 == 15) || (((((((a25 <= 10 && 312 <= a23) && 245 < a29) && a8 == 15) && a4 == 1) || ((a25 <= 10 && a4 == 1) && 247 <= a29)) && a8 == 15) && a29 <= 274)) && a23 <= 600000) && a3 == 1)) || (((((a23 <= 312 && a8 == 15) && a25 == 12) && 0 < a23 + 43) && a4 == 1) && a3 == 1)) || (((((((245 < a29 && a8 == 15) && a25 == 12) && a29 <= 599998) && a23 <= 600000) && a4 == 1) && 0 < a23 + 43) && a3 == 1)) || ((((((((a25 <= 10 && 278 <= a29) || (245 < a29 && a25 == 12)) && a25 <= 9) && a29 <= 599998) && a23 + 43 <= 0) || ((((a25 <= 10 && 278 <= a29) || (245 < a29 && a25 == 12)) && a29 <= 274) && a23 + 43 <= 0)) && a8 == 15) && a3 == 1) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((a4 <= 0 && 141 <= a29) && a8 == 15) && a25 == 12) && a29 <= 245) && a3 == 1) && a23 + 55 <= 0) || ((((27009 <= a29 && a8 == 15) && ((((a23 <= 138 && 130 <= a29) && a4 == 1) || (((((a25 <= 9 && a29 <= 140) && a23 <= 312) && 130 <= a29) && a8 == 15) && a3 == 1)) || (((((a25 <= 10 && 278 <= a29) && a23 + 599772 <= 0) || ((278 <= a29 && a25 == 13) && a23 <= 312)) && a8 == 15) && a3 == 1))) && a4 == 1) && a3 == 1)) || ((((((a4 <= 0 && a29 + 22 <= 0) && !(6 == input)) && a8 == 15) && a25 == 12) && a3 == 1) && a23 + 55 <= 0)) || (((((a29 <= 275 && a4 <= 0) && 245 < a29) && a8 == 15) && a25 == 12) && a3 == 1)) || ((((140 < a29 && a8 == 15) && ((((a23 <= 138 && 130 <= a29) && a4 == 1) || (((((a25 <= 9 && a29 <= 140) && a23 <= 312) && 130 <= a29) && a8 == 15) && a3 == 1)) || (((((a25 <= 10 && 278 <= a29) && a23 + 599772 <= 0) || ((278 <= a29 && a25 == 13) && a23 <= 312)) && a8 == 15) && a3 == 1))) && a29 <= 245) && a3 == 1)) || ((((((a25 == 10 && a29 + 22 <= 0) && 0 <= a29 + 580294) && a23 + 55 <= 0) || (((a25 == 11 && a29 + 22 <= 0) && a23 + 43 <= 0) && 0 <= a29 + 580294)) && a8 == 15) && a3 == 1)) || (((((((312 <= a23 && a25 == 11) && 141 <= a29) && a8 == 15) && a29 <= 220) && a23 <= 600000) && a4 == 1) && a3 == 1)) || (((((a25 == 10 && 141 <= a29) && a8 == 15) && a29 <= 245) && a3 == 1) && a4 == 1)) || ((((((141 <= a29 && a8 == 15) && a25 == 12) && a23 <= 600000) && a3 == 1) && a4 == 1) && a29 <= 232)) || (((((a25 <= 9 && a29 + 22 <= 0) && a8 == 15) && a23 + 43 <= 0) && 0 <= a29 + 580294) && a3 == 1)) || ((((((312 <= a23 && a25 <= 10) && 141 <= a29) && a8 == 15) && a29 <= 245) && a4 == 1) && a3 == 1)) || (((((a25 <= 9 && a23 <= 312) && a8 == 15) && a29 <= 220) && a4 == 1) && a3 == 1)) || (((((a25 == 11 && 245 < a29) && a8 == 15) && a23 <= 600000) && a4 == 1) && a3 == 1)) || (((((a25 == 13 && a8 == 15) && a23 <= 600000) && a29 <= 245) && a4 == 1) && a3 == 1)) || (((((((((a25 <= 10 && 312 <= a23) && 245 < a29) && a8 == 15) && a4 == 1) || ((a25 <= 10 && a4 == 1) && 247 <= a29)) && a25 == 9) && a23 <= 306) && a8 == 15) && a3 == 1)) || (((((278 <= a29 && a8 == 15) && a25 <= 11) && a23 <= 600000) && a4 == 1) && a3 == 1)) || ((a23 <= 138 && a29 <= 130) && a4 == 1)) || ((a25 <= 11 && ((((a23 <= 138 && 130 <= a29) && a4 == 1) || (((((a25 <= 9 && a29 <= 140) && a23 <= 312) && 130 <= a29) && a8 == 15) && a3 == 1)) || (((((a25 <= 10 && 278 <= a29) && a23 + 599772 <= 0) || ((278 <= a29 && a25 == 13) && a23 <= 312)) && a8 == 15) && a3 == 1))) && a4 == 1)) || ((((((306 < a23 && a25 == 10) && a8 == 15) && a23 <= 600000) && (!(6 == input) || 141 <= a29)) && a4 == 1) && a3 == 1)) || (((((((((((a25 <= 10 && 312 <= a23) && 245 < a29) && a8 == 15) && a4 == 1) || ((a25 <= 10 && a4 == 1) && 247 <= a29)) && a29 <= 275) && a25 <= 9) && a8 == 15) || (((((((a25 <= 10 && 312 <= a23) && 245 < a29) && a8 == 15) && a4 == 1) || ((a25 <= 10 && a4 == 1) && 247 <= a29)) && a8 == 15) && a29 <= 274)) && a23 <= 600000) && a3 == 1)) || (((((a23 <= 312 && a8 == 15) && a25 == 12) && 0 < a23 + 43) && a4 == 1) && a3 == 1)) || (((((((245 < a29 && a8 == 15) && a25 == 12) && a29 <= 599998) && a23 <= 600000) && a4 == 1) && 0 < a23 + 43) && a3 == 1)) || ((((((a25 == 13 && a8 == 15) && a29 <= 599998) && a23 <= 600000) && a4 == 1) && 0 < a23 + 43) && a3 == 1)) || ((((((((a25 <= 10 && 278 <= a29) || (245 < a29 && a25 == 12)) && a25 <= 9) && a29 <= 599998) && a23 + 43 <= 0) || ((((a25 <= 10 && 278 <= a29) || (245 < a29 && a25 == 12)) && a29 <= 274) && a23 + 43 <= 0)) && a8 == 15) && a3 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 159.6s, OverallIterations: 39, TraceHistogramMax: 15, AutomataDifference: 78.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 49.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6261 SDtfs, 9346 SDslu, 1167 SDs, 0 SdLazy, 34653 SolverSat, 5305 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 48.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7606 GetRequests, 7475 SyntacticMatches, 3 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26421occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.5s AutomataMinimizationTime, 39 MinimizatonAttempts, 72152 StatesRemovedByMinimization, 34 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 149 NumberOfFragments, 1638 HoareAnnotationTreeSize, 3 FomulaSimplifications, 26956472 FormulaSimplificationTreeSizeReduction, 17.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 20274832 FormulaSimplificationTreeSizeReductionInter, 32.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.7s SsaConstructionTime, 5.2s SatisfiabilityAnalysisTime, 32.1s InterpolantComputationTime, 31306 NumberOfCodeBlocks, 31306 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 31259 ConstructedInterpolants, 0 QuantifiedInterpolants, 94313439 SizeOfPredicates, 15 NumberOfNonLiveVariables, 9505 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 47 InterpolantComputations, 36 PerfectInterpolantSequences, 87440/89754 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...