./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label22.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt --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 9a5f4a124ead689f5b1dcc674d5d4cbbaaa24eba ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 01:09:21,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:09:21,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:09:21,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:09:21,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:09:21,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:09:21,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:09:21,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:09:21,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:09:21,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:09:21,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:09:21,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:09:21,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:09:21,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:09:21,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:09:21,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:09:21,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:09:21,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:09:21,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:09:21,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:09:21,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:09:21,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:09:21,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:09:21,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:09:21,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:09:21,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:09:21,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:09:21,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:09:21,336 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:09:21,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:09:21,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:09:21,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:09:21,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:09:21,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:09:21,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:09:21,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:09:21,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:09:21,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:09:21,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:09:21,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:09:21,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:09:21,350 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 01:09:21,400 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:09:21,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:09:21,402 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:09:21,402 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:09:21,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:09:21,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:09:21,411 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:09:21,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:09:21,411 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:09:21,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:09:21,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:09:21,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:09:21,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 01:09:21,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 01:09:21,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 01:09:21,414 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:09:21,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:09:21,415 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:09:21,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 01:09:21,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:09:21,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:09:21,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 01:09:21,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:09:21,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:09:21,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 01:09:21,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 01:09:21,417 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:09:21,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 01:09:21,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 01:09:21,418 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:09:21,418 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_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a5f4a124ead689f5b1dcc674d5d4cbbaaa24eba [2021-10-13 01:09:21,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:09:21,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:09:21,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:09:21,756 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:09:21,757 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:09:21,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/eca-rers2012/Problem11_label22.c [2021-10-13 01:09:21,826 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/data/5fab2b036/796f56b6b1fc4c27bcf5abb50e0ca945/FLAG9375411ad [2021-10-13 01:09:22,415 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:09:22,416 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/sv-benchmarks/c/eca-rers2012/Problem11_label22.c [2021-10-13 01:09:22,436 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/data/5fab2b036/796f56b6b1fc4c27bcf5abb50e0ca945/FLAG9375411ad [2021-10-13 01:09:22,675 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/data/5fab2b036/796f56b6b1fc4c27bcf5abb50e0ca945 [2021-10-13 01:09:22,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:09:22,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:09:22,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:09:22,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:09:22,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:09:22,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:09:22" (1/1) ... [2021-10-13 01:09:22,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c46ee2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:22, skipping insertion in model container [2021-10-13 01:09:22,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:09:22" (1/1) ... [2021-10-13 01:09:22,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:09:22,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:09:23,120 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/sv-benchmarks/c/eca-rers2012/Problem11_label22.c[8004,8017] [2021-10-13 01:09:23,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:09:23,487 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:09:23,518 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/sv-benchmarks/c/eca-rers2012/Problem11_label22.c[8004,8017] [2021-10-13 01:09:23,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:09:23,655 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:09:23,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:23 WrapperNode [2021-10-13 01:09:23,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:09:23,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:09:23,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:09:23,658 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:09:23,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:23" (1/1) ... [2021-10-13 01:09:23,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:23" (1/1) ... [2021-10-13 01:09:23,869 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:09:23,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:09:23,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:09:23,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:09:23,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:23" (1/1) ... [2021-10-13 01:09:23,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:23" (1/1) ... [2021-10-13 01:09:23,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:23" (1/1) ... [2021-10-13 01:09:23,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:23" (1/1) ... [2021-10-13 01:09:23,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:23" (1/1) ... [2021-10-13 01:09:23,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:23" (1/1) ... [2021-10-13 01:09:23,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:23" (1/1) ... [2021-10-13 01:09:23,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:09:23,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:09:23,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:09:23,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:09:23,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:23" (1/1) ... [2021-10-13 01:09:24,004 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:09:24,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:09:24,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 01:09:24,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 01:09:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:09:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:09:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:09:24,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:09:26,063 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:09:26,063 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 01:09:26,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:09:26 BoogieIcfgContainer [2021-10-13 01:09:26,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:09:26,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 01:09:26,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 01:09:26,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 01:09:26,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:09:22" (1/3) ... [2021-10-13 01:09:26,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21edafe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:09:26, skipping insertion in model container [2021-10-13 01:09:26,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:23" (2/3) ... [2021-10-13 01:09:26,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21edafe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:09:26, skipping insertion in model container [2021-10-13 01:09:26,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:09:26" (3/3) ... [2021-10-13 01:09:26,078 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label22.c [2021-10-13 01:09:26,087 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 01:09:26,087 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 01:09:26,160 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 01:09:26,169 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 01:09:26,169 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 01:09:26,201 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:26,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-13 01:09:26,212 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:09:26,213 INFO L512 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] [2021-10-13 01:09:26,214 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:09:26,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:26,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1246856209, now seen corresponding path program 1 times [2021-10-13 01:09:26,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:09:26,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486940985] [2021-10-13 01:09:26,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:26,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:09:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:09:26,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:09:26,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:09:26,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486940985] [2021-10-13 01:09:26,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486940985] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:09:26,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:09:26,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:09:26,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754572451] [2021-10-13 01:09:26,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:09:26,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:09:26,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:09:26,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:09:26,585 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:27,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:09:27,917 INFO L93 Difference]: Finished difference Result 761 states and 1345 transitions. [2021-10-13 01:09:27,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:09:27,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-10-13 01:09:27,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:09:27,951 INFO L225 Difference]: With dead ends: 761 [2021-10-13 01:09:27,951 INFO L226 Difference]: Without dead ends: 413 [2021-10-13 01:09:27,956 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:09:27,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-10-13 01:09:28,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2021-10-13 01:09:28,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 412 states have (on average 1.453883495145631) internal successors, (599), 412 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:28,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2021-10-13 01:09:28,039 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 55 [2021-10-13 01:09:28,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:09:28,040 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2021-10-13 01:09:28,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:28,041 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2021-10-13 01:09:28,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-10-13 01:09:28,046 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:09:28,046 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:09:28,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 01:09:28,047 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:09:28,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:28,048 INFO L82 PathProgramCache]: Analyzing trace with hash -149441032, now seen corresponding path program 1 times [2021-10-13 01:09:28,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:09:28,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459733537] [2021-10-13 01:09:28,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:28,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:09:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:09:28,247 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:09:28,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:09:28,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459733537] [2021-10-13 01:09:28,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459733537] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:09:28,249 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:09:28,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:09:28,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848940916] [2021-10-13 01:09:28,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:09:28,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:09:28,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:09:28,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:09:28,252 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:29,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:09:29,209 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2021-10-13 01:09:29,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:09:29,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2021-10-13 01:09:29,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:09:29,215 INFO L225 Difference]: With dead ends: 1211 [2021-10-13 01:09:29,215 INFO L226 Difference]: Without dead ends: 800 [2021-10-13 01:09:29,217 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:09:29,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-10-13 01:09:29,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2021-10-13 01:09:29,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 788 states have (on average 1.3743654822335025) internal successors, (1083), 788 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:29,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1083 transitions. [2021-10-13 01:09:29,258 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1083 transitions. Word has length 123 [2021-10-13 01:09:29,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:09:29,259 INFO L470 AbstractCegarLoop]: Abstraction has 789 states and 1083 transitions. [2021-10-13 01:09:29,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:29,259 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1083 transitions. [2021-10-13 01:09:29,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-10-13 01:09:29,263 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:09:29,264 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:09:29,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 01:09:29,264 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:09:29,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:29,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1649165251, now seen corresponding path program 1 times [2021-10-13 01:09:29,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:09:29,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561236324] [2021-10-13 01:09:29,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:29,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:09:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:09:29,419 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:09:29,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:09:29,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561236324] [2021-10-13 01:09:29,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561236324] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:09:29,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:09:29,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:09:29,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284799367] [2021-10-13 01:09:29,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:09:29,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:09:29,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:09:29,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:09:29,423 INFO L87 Difference]: Start difference. First operand 789 states and 1083 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:30,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:09:30,233 INFO L93 Difference]: Finished difference Result 1945 states and 2612 transitions. [2021-10-13 01:09:30,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:09:30,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-10-13 01:09:30,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:09:30,245 INFO L225 Difference]: With dead ends: 1945 [2021-10-13 01:09:30,245 INFO L226 Difference]: Without dead ends: 1158 [2021-10-13 01:09:30,247 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:09:30,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2021-10-13 01:09:30,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1157. [2021-10-13 01:09:30,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.2707612456747406) internal successors, (1469), 1156 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:30,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1469 transitions. [2021-10-13 01:09:30,283 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1469 transitions. Word has length 125 [2021-10-13 01:09:30,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:09:30,284 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1469 transitions. [2021-10-13 01:09:30,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:30,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1469 transitions. [2021-10-13 01:09:30,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-10-13 01:09:30,290 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:09:30,290 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:09:30,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 01:09:30,291 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:09:30,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:30,291 INFO L82 PathProgramCache]: Analyzing trace with hash 693126941, now seen corresponding path program 1 times [2021-10-13 01:09:30,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:09:30,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018770513] [2021-10-13 01:09:30,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:30,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:09:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:09:30,518 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:09:30,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:09:30,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018770513] [2021-10-13 01:09:30,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018770513] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:09:30,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:09:30,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:09:30,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959018478] [2021-10-13 01:09:30,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:09:30,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:09:30,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:09:30,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:09:30,525 INFO L87 Difference]: Start difference. First operand 1157 states and 1469 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:31,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:09:31,468 INFO L93 Difference]: Finished difference Result 2519 states and 3349 transitions. [2021-10-13 01:09:31,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:09:31,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2021-10-13 01:09:31,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:09:31,478 INFO L225 Difference]: With dead ends: 2519 [2021-10-13 01:09:31,479 INFO L226 Difference]: Without dead ends: 1548 [2021-10-13 01:09:31,480 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:09:31,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2021-10-13 01:09:31,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1545. [2021-10-13 01:09:31,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1544 states have (on average 1.2933937823834196) internal successors, (1997), 1544 states have internal predecessors, (1997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:31,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 1997 transitions. [2021-10-13 01:09:31,521 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 1997 transitions. Word has length 182 [2021-10-13 01:09:31,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:09:31,522 INFO L470 AbstractCegarLoop]: Abstraction has 1545 states and 1997 transitions. [2021-10-13 01:09:31,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:31,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 1997 transitions. [2021-10-13 01:09:31,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-10-13 01:09:31,527 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:09:31,528 INFO L512 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, 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] [2021-10-13 01:09:31,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 01:09:31,528 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:09:31,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:31,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1614618080, now seen corresponding path program 1 times [2021-10-13 01:09:31,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:09:31,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083950908] [2021-10-13 01:09:31,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:31,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:09:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:09:31,685 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-10-13 01:09:31,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:09:31,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083950908] [2021-10-13 01:09:31,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083950908] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:09:31,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:09:31,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:09:31,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511007984] [2021-10-13 01:09:31,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:09:31,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:09:31,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:09:31,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:09:31,689 INFO L87 Difference]: Start difference. First operand 1545 states and 1997 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:32,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:09:33,000 INFO L93 Difference]: Finished difference Result 3650 states and 4815 transitions. [2021-10-13 01:09:33,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:09:33,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 237 [2021-10-13 01:09:33,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:09:33,017 INFO L225 Difference]: With dead ends: 3650 [2021-10-13 01:09:33,017 INFO L226 Difference]: Without dead ends: 2291 [2021-10-13 01:09:33,020 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:09:33,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2021-10-13 01:09:33,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2098. [2021-10-13 01:09:33,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2098 states, 2097 states have (on average 1.2675250357653791) internal successors, (2658), 2097 states have internal predecessors, (2658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:33,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2098 states to 2098 states and 2658 transitions. [2021-10-13 01:09:33,091 INFO L78 Accepts]: Start accepts. Automaton has 2098 states and 2658 transitions. Word has length 237 [2021-10-13 01:09:33,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:09:33,092 INFO L470 AbstractCegarLoop]: Abstraction has 2098 states and 2658 transitions. [2021-10-13 01:09:33,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:33,093 INFO L276 IsEmpty]: Start isEmpty. Operand 2098 states and 2658 transitions. [2021-10-13 01:09:33,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-10-13 01:09:33,099 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:09:33,100 INFO L512 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, 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] [2021-10-13 01:09:33,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 01:09:33,100 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:09:33,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:33,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1116092079, now seen corresponding path program 1 times [2021-10-13 01:09:33,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:09:33,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270937988] [2021-10-13 01:09:33,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:33,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:09:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:09:33,401 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 91 proven. 14 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-13 01:09:33,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:09:33,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270937988] [2021-10-13 01:09:33,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270937988] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:09:33,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418381689] [2021-10-13 01:09:33,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:33,403 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:09:33,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:09:33,405 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:09:33,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 01:09:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:09:33,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:09:33,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:09:34,503 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-13 01:09:34,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418381689] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:09:34,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:09:34,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-13 01:09:34,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131508601] [2021-10-13 01:09:34,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:09:34,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:09:34,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:09:34,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:09:34,521 INFO L87 Difference]: Start difference. First operand 2098 states and 2658 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:35,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:09:35,701 INFO L93 Difference]: Finished difference Result 5671 states and 7287 transitions. [2021-10-13 01:09:35,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:09:35,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2021-10-13 01:09:35,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:09:35,723 INFO L225 Difference]: With dead ends: 5671 [2021-10-13 01:09:35,723 INFO L226 Difference]: Without dead ends: 3575 [2021-10-13 01:09:35,727 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 42.0ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:09:35,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3575 states. [2021-10-13 01:09:35,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3575 to 3572. [2021-10-13 01:09:35,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3572 states, 3571 states have (on average 1.2509101092131056) internal successors, (4467), 3571 states have internal predecessors, (4467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:35,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3572 states to 3572 states and 4467 transitions. [2021-10-13 01:09:35,823 INFO L78 Accepts]: Start accepts. Automaton has 3572 states and 4467 transitions. Word has length 243 [2021-10-13 01:09:35,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:09:35,823 INFO L470 AbstractCegarLoop]: Abstraction has 3572 states and 4467 transitions. [2021-10-13 01:09:35,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:35,824 INFO L276 IsEmpty]: Start isEmpty. Operand 3572 states and 4467 transitions. [2021-10-13 01:09:35,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-10-13 01:09:35,831 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:09:35,831 INFO L512 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 01:09:35,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:09:36,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:09:36,046 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:09:36,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:36,047 INFO L82 PathProgramCache]: Analyzing trace with hash 741694043, now seen corresponding path program 1 times [2021-10-13 01:09:36,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:09:36,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118919046] [2021-10-13 01:09:36,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:36,048 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:09:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:09:36,282 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:09:36,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:09:36,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118919046] [2021-10-13 01:09:36,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118919046] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:09:36,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:09:36,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:09:36,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977579331] [2021-10-13 01:09:36,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:09:36,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:09:36,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:09:36,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:09:36,286 INFO L87 Difference]: Start difference. First operand 3572 states and 4467 transitions. Second operand has 4 states, 4 states have (on average 70.5) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:38,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:09:38,201 INFO L93 Difference]: Finished difference Result 11413 states and 14584 transitions. [2021-10-13 01:09:38,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:09:38,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 70.5) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 282 [2021-10-13 01:09:38,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:09:38,266 INFO L225 Difference]: With dead ends: 11413 [2021-10-13 01:09:38,266 INFO L226 Difference]: Without dead ends: 8027 [2021-10-13 01:09:38,317 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:09:38,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8027 states. [2021-10-13 01:09:38,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8027 to 8025. [2021-10-13 01:09:38,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8025 states, 8024 states have (on average 1.2534895314057826) internal successors, (10058), 8024 states have internal predecessors, (10058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:38,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8025 states to 8025 states and 10058 transitions. [2021-10-13 01:09:38,606 INFO L78 Accepts]: Start accepts. Automaton has 8025 states and 10058 transitions. Word has length 282 [2021-10-13 01:09:38,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:09:38,609 INFO L470 AbstractCegarLoop]: Abstraction has 8025 states and 10058 transitions. [2021-10-13 01:09:38,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.5) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:38,610 INFO L276 IsEmpty]: Start isEmpty. Operand 8025 states and 10058 transitions. [2021-10-13 01:09:38,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-10-13 01:09:38,620 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:09:38,621 INFO L512 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 01:09:38,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 01:09:38,622 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:09:38,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:38,622 INFO L82 PathProgramCache]: Analyzing trace with hash 81123789, now seen corresponding path program 1 times [2021-10-13 01:09:38,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:09:38,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617272670] [2021-10-13 01:09:38,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:38,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:09:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:09:38,829 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-10-13 01:09:38,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:09:38,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617272670] [2021-10-13 01:09:38,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617272670] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:09:38,830 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:09:38,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:09:38,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325378069] [2021-10-13 01:09:38,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:09:38,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:09:38,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:09:38,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:09:38,833 INFO L87 Difference]: Start difference. First operand 8025 states and 10058 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:40,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:09:40,097 INFO L93 Difference]: Finished difference Result 18085 states and 22879 transitions. [2021-10-13 01:09:40,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:09:40,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 291 [2021-10-13 01:09:40,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:09:40,154 INFO L225 Difference]: With dead ends: 18085 [2021-10-13 01:09:40,154 INFO L226 Difference]: Without dead ends: 10246 [2021-10-13 01:09:40,164 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:09:40,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10246 states. [2021-10-13 01:09:40,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10246 to 10232. [2021-10-13 01:09:40,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10232 states, 10231 states have (on average 1.221385983774802) internal successors, (12496), 10231 states have internal predecessors, (12496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:40,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10232 states to 10232 states and 12496 transitions. [2021-10-13 01:09:40,442 INFO L78 Accepts]: Start accepts. Automaton has 10232 states and 12496 transitions. Word has length 291 [2021-10-13 01:09:40,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:09:40,443 INFO L470 AbstractCegarLoop]: Abstraction has 10232 states and 12496 transitions. [2021-10-13 01:09:40,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:40,444 INFO L276 IsEmpty]: Start isEmpty. Operand 10232 states and 12496 transitions. [2021-10-13 01:09:40,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-10-13 01:09:40,458 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:09:40,458 INFO L512 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 01:09:40,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 01:09:40,459 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:09:40,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:40,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1228370302, now seen corresponding path program 1 times [2021-10-13 01:09:40,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:09:40,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735825698] [2021-10-13 01:09:40,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:40,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:09:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:09:40,801 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 173 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:09:40,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:09:40,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735825698] [2021-10-13 01:09:40,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735825698] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:09:40,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63554292] [2021-10-13 01:09:40,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:40,810 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:09:40,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:09:40,814 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:09:40,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 01:09:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:09:41,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 01:09:41,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:09:44,463 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 173 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:09:44,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63554292] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:09:44,464 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:09:44,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-10-13 01:09:44,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287171307] [2021-10-13 01:09:44,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 01:09:44,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:09:44,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 01:09:44,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:09:44,468 INFO L87 Difference]: Start difference. First operand 10232 states and 12496 transitions. Second operand has 7 states, 7 states have (on average 73.0) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:47,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:09:47,378 INFO L93 Difference]: Finished difference Result 23032 states and 28340 transitions. [2021-10-13 01:09:47,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 01:09:47,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 73.0) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 329 [2021-10-13 01:09:47,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:09:47,458 INFO L225 Difference]: With dead ends: 23032 [2021-10-13 01:09:47,458 INFO L226 Difference]: Without dead ends: 13539 [2021-10-13 01:09:47,470 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 87.8ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-10-13 01:09:47,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13539 states. [2021-10-13 01:09:47,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13539 to 10943. [2021-10-13 01:09:47,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10943 states, 10942 states have (on average 1.1883567903491135) internal successors, (13003), 10942 states have internal predecessors, (13003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:47,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10943 states to 10943 states and 13003 transitions. [2021-10-13 01:09:47,718 INFO L78 Accepts]: Start accepts. Automaton has 10943 states and 13003 transitions. Word has length 329 [2021-10-13 01:09:47,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:09:47,719 INFO L470 AbstractCegarLoop]: Abstraction has 10943 states and 13003 transitions. [2021-10-13 01:09:47,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.0) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:47,720 INFO L276 IsEmpty]: Start isEmpty. Operand 10943 states and 13003 transitions. [2021-10-13 01:09:47,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2021-10-13 01:09:47,738 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:09:47,738 INFO L512 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, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:09:47,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 01:09:47,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:09:47,958 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:09:47,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:47,959 INFO L82 PathProgramCache]: Analyzing trace with hash -333660676, now seen corresponding path program 1 times [2021-10-13 01:09:47,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:09:47,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876655901] [2021-10-13 01:09:47,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:47,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:09:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:09:48,167 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 367 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-10-13 01:09:48,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:09:48,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876655901] [2021-10-13 01:09:48,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876655901] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:09:48,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:09:48,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:09:48,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187758267] [2021-10-13 01:09:48,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:09:48,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:09:48,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:09:48,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:09:48,173 INFO L87 Difference]: Start difference. First operand 10943 states and 13003 transitions. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:49,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:09:49,451 INFO L93 Difference]: Finished difference Result 27057 states and 32311 transitions. [2021-10-13 01:09:49,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:09:49,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 349 [2021-10-13 01:09:49,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:09:49,488 INFO L225 Difference]: With dead ends: 27057 [2021-10-13 01:09:49,488 INFO L226 Difference]: Without dead ends: 16852 [2021-10-13 01:09:49,500 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:09:49,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16852 states. [2021-10-13 01:09:49,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16852 to 16848. [2021-10-13 01:09:49,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16848 states, 16847 states have (on average 1.167388852614709) internal successors, (19667), 16847 states have internal predecessors, (19667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:49,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16848 states to 16848 states and 19667 transitions. [2021-10-13 01:09:49,839 INFO L78 Accepts]: Start accepts. Automaton has 16848 states and 19667 transitions. Word has length 349 [2021-10-13 01:09:49,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:09:49,840 INFO L470 AbstractCegarLoop]: Abstraction has 16848 states and 19667 transitions. [2021-10-13 01:09:49,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:49,841 INFO L276 IsEmpty]: Start isEmpty. Operand 16848 states and 19667 transitions. [2021-10-13 01:09:49,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2021-10-13 01:09:49,865 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:09:49,866 INFO L512 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 01:09:49,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 01:09:49,867 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:09:49,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:49,868 INFO L82 PathProgramCache]: Analyzing trace with hash 413217873, now seen corresponding path program 1 times [2021-10-13 01:09:49,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:09:49,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358867707] [2021-10-13 01:09:49,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:49,869 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:09:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:09:50,104 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:09:50,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:09:50,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358867707] [2021-10-13 01:09:50,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358867707] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:09:50,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:09:50,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:09:50,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445016082] [2021-10-13 01:09:50,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:09:50,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:09:50,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:09:50,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:09:50,110 INFO L87 Difference]: Start difference. First operand 16848 states and 19667 transitions. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:51,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:09:51,353 INFO L93 Difference]: Finished difference Result 35910 states and 41957 transitions. [2021-10-13 01:09:51,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:09:51,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 357 [2021-10-13 01:09:51,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:09:51,404 INFO L225 Difference]: With dead ends: 35910 [2021-10-13 01:09:51,404 INFO L226 Difference]: Without dead ends: 20168 [2021-10-13 01:09:51,425 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:09:51,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20168 states. [2021-10-13 01:09:51,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20168 to 20160. [2021-10-13 01:09:51,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20160 states, 20159 states have (on average 1.155960117069299) internal successors, (23303), 20159 states have internal predecessors, (23303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:52,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20160 states to 20160 states and 23303 transitions. [2021-10-13 01:09:52,011 INFO L78 Accepts]: Start accepts. Automaton has 20160 states and 23303 transitions. Word has length 357 [2021-10-13 01:09:52,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:09:52,012 INFO L470 AbstractCegarLoop]: Abstraction has 20160 states and 23303 transitions. [2021-10-13 01:09:52,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:52,013 INFO L276 IsEmpty]: Start isEmpty. Operand 20160 states and 23303 transitions. [2021-10-13 01:09:52,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2021-10-13 01:09:52,060 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:09:52,061 INFO L512 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, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:09:52,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 01:09:52,062 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:09:52,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:52,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1498658965, now seen corresponding path program 1 times [2021-10-13 01:09:52,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:09:52,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410834968] [2021-10-13 01:09:52,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:52,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:09:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:09:52,329 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-13 01:09:52,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:09:52,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410834968] [2021-10-13 01:09:52,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410834968] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:09:52,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:09:52,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:09:52,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066968394] [2021-10-13 01:09:52,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:09:52,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:09:52,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:09:52,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:09:52,333 INFO L87 Difference]: Start difference. First operand 20160 states and 23303 transitions. Second operand has 4 states, 4 states have (on average 69.75) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:53,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:09:53,925 INFO L93 Difference]: Finished difference Result 44218 states and 51655 transitions. [2021-10-13 01:09:53,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:09:53,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 69.75) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 359 [2021-10-13 01:09:53,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:09:53,976 INFO L225 Difference]: With dead ends: 44218 [2021-10-13 01:09:53,976 INFO L226 Difference]: Without dead ends: 26086 [2021-10-13 01:09:53,989 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:09:54,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26086 states. [2021-10-13 01:09:54,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26086 to 22201. [2021-10-13 01:09:54,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22201 states, 22200 states have (on average 1.1554054054054055) internal successors, (25650), 22200 states have internal predecessors, (25650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:54,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22201 states to 22201 states and 25650 transitions. [2021-10-13 01:09:54,428 INFO L78 Accepts]: Start accepts. Automaton has 22201 states and 25650 transitions. Word has length 359 [2021-10-13 01:09:54,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:09:54,429 INFO L470 AbstractCegarLoop]: Abstraction has 22201 states and 25650 transitions. [2021-10-13 01:09:54,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.75) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:54,430 INFO L276 IsEmpty]: Start isEmpty. Operand 22201 states and 25650 transitions. [2021-10-13 01:09:54,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-10-13 01:09:54,447 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:09:54,447 INFO L512 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 01:09:54,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-13 01:09:54,448 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:09:54,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:54,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1694407671, now seen corresponding path program 1 times [2021-10-13 01:09:54,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:09:54,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242432301] [2021-10-13 01:09:54,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:54,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:09:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:09:54,660 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-10-13 01:09:54,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:09:54,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242432301] [2021-10-13 01:09:54,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242432301] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:09:54,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235829134] [2021-10-13 01:09:54,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:54,661 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:09:54,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:09:54,666 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:09:54,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 01:09:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:09:55,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 01:09:55,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:09:56,981 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-10-13 01:09:56,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235829134] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:09:56,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:09:56,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-13 01:09:56,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620000808] [2021-10-13 01:09:56,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:09:56,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:09:56,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:09:56,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:09:56,988 INFO L87 Difference]: Start difference. First operand 22201 states and 25650 transitions. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:58,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:09:58,638 INFO L93 Difference]: Finished difference Result 47901 states and 55214 transitions. [2021-10-13 01:09:58,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:09:58,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 360 [2021-10-13 01:09:58,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:09:58,687 INFO L225 Difference]: With dead ends: 47901 [2021-10-13 01:09:58,687 INFO L226 Difference]: Without dead ends: 27728 [2021-10-13 01:09:58,702 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 359 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:09:58,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27728 states. [2021-10-13 01:09:59,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27728 to 22017. [2021-10-13 01:09:59,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22017 states, 22016 states have (on average 1.1539335029069768) internal successors, (25405), 22016 states have internal predecessors, (25405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:59,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22017 states to 22017 states and 25405 transitions. [2021-10-13 01:09:59,267 INFO L78 Accepts]: Start accepts. Automaton has 22017 states and 25405 transitions. Word has length 360 [2021-10-13 01:09:59,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:09:59,268 INFO L470 AbstractCegarLoop]: Abstraction has 22017 states and 25405 transitions. [2021-10-13 01:09:59,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:09:59,268 INFO L276 IsEmpty]: Start isEmpty. Operand 22017 states and 25405 transitions. [2021-10-13 01:09:59,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2021-10-13 01:09:59,288 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:09:59,288 INFO L512 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:09:59,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 01:09:59,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:09:59,510 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:09:59,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:59,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1780645049, now seen corresponding path program 1 times [2021-10-13 01:09:59,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:09:59,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817272350] [2021-10-13 01:09:59,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:59,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:09:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:09:59,708 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 552 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-10-13 01:09:59,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:09:59,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817272350] [2021-10-13 01:09:59,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817272350] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:09:59,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:09:59,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:09:59,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744169043] [2021-10-13 01:09:59,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:09:59,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:09:59,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:09:59,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:09:59,711 INFO L87 Difference]: Start difference. First operand 22017 states and 25405 transitions. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:00,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:00,719 INFO L93 Difference]: Finished difference Result 43670 states and 50426 transitions. [2021-10-13 01:10:00,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:10:00,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 430 [2021-10-13 01:10:00,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:10:00,754 INFO L225 Difference]: With dead ends: 43670 [2021-10-13 01:10:00,754 INFO L226 Difference]: Without dead ends: 23681 [2021-10-13 01:10:00,766 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:10:00,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23681 states. [2021-10-13 01:10:01,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23681 to 22203. [2021-10-13 01:10:01,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22203 states, 22202 states have (on average 1.153724889649581) internal successors, (25615), 22202 states have internal predecessors, (25615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:01,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22203 states to 22203 states and 25615 transitions. [2021-10-13 01:10:01,220 INFO L78 Accepts]: Start accepts. Automaton has 22203 states and 25615 transitions. Word has length 430 [2021-10-13 01:10:01,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:10:01,221 INFO L470 AbstractCegarLoop]: Abstraction has 22203 states and 25615 transitions. [2021-10-13 01:10:01,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:01,221 INFO L276 IsEmpty]: Start isEmpty. Operand 22203 states and 25615 transitions. [2021-10-13 01:10:01,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2021-10-13 01:10:01,245 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:10:01,245 INFO L512 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:01,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-13 01:10:01,248 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:10:01,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:01,249 INFO L82 PathProgramCache]: Analyzing trace with hash 767467316, now seen corresponding path program 1 times [2021-10-13 01:10:01,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:01,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896541362] [2021-10-13 01:10:01,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:01,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:01,410 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 487 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-10-13 01:10:01,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:01,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896541362] [2021-10-13 01:10:01,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896541362] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:10:01,412 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:10:01,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:10:01,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970519711] [2021-10-13 01:10:01,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:10:01,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:01,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:10:01,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:10:01,414 INFO L87 Difference]: Start difference. First operand 22203 states and 25615 transitions. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:02,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:02,578 INFO L93 Difference]: Finished difference Result 41286 states and 47755 transitions. [2021-10-13 01:10:02,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:10:02,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 433 [2021-10-13 01:10:02,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:10:02,610 INFO L225 Difference]: With dead ends: 41286 [2021-10-13 01:10:02,611 INFO L226 Difference]: Without dead ends: 21111 [2021-10-13 01:10:02,620 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:10:02,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21111 states. [2021-10-13 01:10:02,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21111 to 21093. [2021-10-13 01:10:02,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21093 states, 21092 states have (on average 1.126730513938934) internal successors, (23765), 21092 states have internal predecessors, (23765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:03,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21093 states to 21093 states and 23765 transitions. [2021-10-13 01:10:03,056 INFO L78 Accepts]: Start accepts. Automaton has 21093 states and 23765 transitions. Word has length 433 [2021-10-13 01:10:03,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:10:03,060 INFO L470 AbstractCegarLoop]: Abstraction has 21093 states and 23765 transitions. [2021-10-13 01:10:03,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:03,061 INFO L276 IsEmpty]: Start isEmpty. Operand 21093 states and 23765 transitions. [2021-10-13 01:10:03,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2021-10-13 01:10:03,079 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:10:03,079 INFO L512 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:03,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-13 01:10:03,080 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:10:03,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:03,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1966731224, now seen corresponding path program 1 times [2021-10-13 01:10:03,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:03,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812932458] [2021-10-13 01:10:03,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:03,081 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:03,261 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2021-10-13 01:10:03,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:03,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812932458] [2021-10-13 01:10:03,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812932458] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:10:03,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:10:03,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:10:03,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090853547] [2021-10-13 01:10:03,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:10:03,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:03,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:10:03,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:10:03,265 INFO L87 Difference]: Start difference. First operand 21093 states and 23765 transitions. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 2 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:03,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:03,796 INFO L93 Difference]: Finished difference Result 39407 states and 44451 transitions. [2021-10-13 01:10:03,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:10:03,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 2 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 437 [2021-10-13 01:10:03,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:10:03,820 INFO L225 Difference]: With dead ends: 39407 [2021-10-13 01:10:03,821 INFO L226 Difference]: Without dead ends: 20342 [2021-10-13 01:10:03,831 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:10:03,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20342 states. [2021-10-13 01:10:04,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20342 to 20333. [2021-10-13 01:10:04,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20333 states, 20332 states have (on average 1.12492622467047) internal successors, (22872), 20332 states have internal predecessors, (22872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:04,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20333 states to 20333 states and 22872 transitions. [2021-10-13 01:10:04,192 INFO L78 Accepts]: Start accepts. Automaton has 20333 states and 22872 transitions. Word has length 437 [2021-10-13 01:10:04,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:10:04,193 INFO L470 AbstractCegarLoop]: Abstraction has 20333 states and 22872 transitions. [2021-10-13 01:10:04,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 2 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:04,193 INFO L276 IsEmpty]: Start isEmpty. Operand 20333 states and 22872 transitions. [2021-10-13 01:10:04,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2021-10-13 01:10:04,202 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:10:04,203 INFO L512 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:04,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-13 01:10:04,203 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:10:04,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:04,204 INFO L82 PathProgramCache]: Analyzing trace with hash 753967230, now seen corresponding path program 1 times [2021-10-13 01:10:04,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:04,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179243462] [2021-10-13 01:10:04,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:04,205 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:04,530 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 357 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-13 01:10:04,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:04,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179243462] [2021-10-13 01:10:04,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179243462] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:10:04,531 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:10:04,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:10:04,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499583224] [2021-10-13 01:10:04,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:10:04,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:04,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:10:04,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:10:04,534 INFO L87 Difference]: Start difference. First operand 20333 states and 22872 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:05,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:05,314 INFO L93 Difference]: Finished difference Result 35298 states and 39545 transitions. [2021-10-13 01:10:05,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:10:05,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 453 [2021-10-13 01:10:05,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:10:05,334 INFO L225 Difference]: With dead ends: 35298 [2021-10-13 01:10:05,334 INFO L226 Difference]: Without dead ends: 16807 [2021-10-13 01:10:05,345 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:10:05,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16807 states. [2021-10-13 01:10:05,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16807 to 16807. [2021-10-13 01:10:05,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16807 states, 16806 states have (on average 1.1066880875877663) internal successors, (18599), 16806 states have internal predecessors, (18599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:05,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16807 states to 16807 states and 18599 transitions. [2021-10-13 01:10:05,656 INFO L78 Accepts]: Start accepts. Automaton has 16807 states and 18599 transitions. Word has length 453 [2021-10-13 01:10:05,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:10:05,656 INFO L470 AbstractCegarLoop]: Abstraction has 16807 states and 18599 transitions. [2021-10-13 01:10:05,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:05,656 INFO L276 IsEmpty]: Start isEmpty. Operand 16807 states and 18599 transitions. [2021-10-13 01:10:05,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2021-10-13 01:10:05,666 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:10:05,667 INFO L512 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:05,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-13 01:10:05,667 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:10:05,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:05,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1527728535, now seen corresponding path program 1 times [2021-10-13 01:10:05,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:05,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973502539] [2021-10-13 01:10:05,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:05,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:05,949 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-10-13 01:10:05,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:05,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973502539] [2021-10-13 01:10:05,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973502539] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:10:05,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:10:05,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 01:10:05,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206103442] [2021-10-13 01:10:05,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 01:10:05,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:05,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:10:05,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:10:05,953 INFO L87 Difference]: Start difference. First operand 16807 states and 18599 transitions. Second operand has 5 states, 5 states have (on average 73.6) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:07,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:07,126 INFO L93 Difference]: Finished difference Result 32019 states and 35460 transitions. [2021-10-13 01:10:07,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 01:10:07,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 491 [2021-10-13 01:10:07,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:10:07,140 INFO L225 Difference]: With dead ends: 32019 [2021-10-13 01:10:07,140 INFO L226 Difference]: Without dead ends: 17240 [2021-10-13 01:10:07,146 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 34.4ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:10:07,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17240 states. [2021-10-13 01:10:07,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17240 to 16992. [2021-10-13 01:10:07,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16992 states, 16991 states have (on average 1.1051733270555) internal successors, (18778), 16991 states have internal predecessors, (18778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:07,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16992 states to 16992 states and 18778 transitions. [2021-10-13 01:10:07,336 INFO L78 Accepts]: Start accepts. Automaton has 16992 states and 18778 transitions. Word has length 491 [2021-10-13 01:10:07,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:10:07,337 INFO L470 AbstractCegarLoop]: Abstraction has 16992 states and 18778 transitions. [2021-10-13 01:10:07,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:07,337 INFO L276 IsEmpty]: Start isEmpty. Operand 16992 states and 18778 transitions. [2021-10-13 01:10:07,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2021-10-13 01:10:07,356 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:10:07,356 INFO L512 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-10-13 01:10:07,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-13 01:10:07,357 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:10:07,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:07,358 INFO L82 PathProgramCache]: Analyzing trace with hash 762254319, now seen corresponding path program 1 times [2021-10-13 01:10:07,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:07,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907790013] [2021-10-13 01:10:07,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:07,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:07,579 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 685 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-10-13 01:10:07,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:07,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907790013] [2021-10-13 01:10:07,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907790013] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:10:07,580 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:10:07,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:10:07,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858770457] [2021-10-13 01:10:07,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:10:07,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:07,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:10:07,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:10:07,583 INFO L87 Difference]: Start difference. First operand 16992 states and 18778 transitions. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:08,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:08,391 INFO L93 Difference]: Finished difference Result 34534 states and 38184 transitions. [2021-10-13 01:10:08,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:10:08,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 513 [2021-10-13 01:10:08,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:10:08,409 INFO L225 Difference]: With dead ends: 34534 [2021-10-13 01:10:08,409 INFO L226 Difference]: Without dead ends: 18648 [2021-10-13 01:10:08,417 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:10:08,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18648 states. [2021-10-13 01:10:08,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18648 to 17728. [2021-10-13 01:10:08,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17728 states, 17727 states have (on average 1.1028374795509674) internal successors, (19550), 17727 states have internal predecessors, (19550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:08,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17728 states to 17728 states and 19550 transitions. [2021-10-13 01:10:08,670 INFO L78 Accepts]: Start accepts. Automaton has 17728 states and 19550 transitions. Word has length 513 [2021-10-13 01:10:08,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:10:08,670 INFO L470 AbstractCegarLoop]: Abstraction has 17728 states and 19550 transitions. [2021-10-13 01:10:08,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:08,671 INFO L276 IsEmpty]: Start isEmpty. Operand 17728 states and 19550 transitions. [2021-10-13 01:10:08,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2021-10-13 01:10:08,693 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:10:08,694 INFO L512 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:08,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-13 01:10:08,695 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:10:08,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:08,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1316469261, now seen corresponding path program 1 times [2021-10-13 01:10:08,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:08,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973648869] [2021-10-13 01:10:08,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:08,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:08,987 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 470 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-10-13 01:10:08,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:08,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973648869] [2021-10-13 01:10:08,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973648869] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:10:08,988 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:10:08,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:10:08,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938959667] [2021-10-13 01:10:08,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:10:08,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:08,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:10:08,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:10:08,991 INFO L87 Difference]: Start difference. First operand 17728 states and 19550 transitions. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:10,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:10,061 INFO L93 Difference]: Finished difference Result 37114 states and 40944 transitions. [2021-10-13 01:10:10,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:10:10,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 545 [2021-10-13 01:10:10,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:10:10,089 INFO L225 Difference]: With dead ends: 37114 [2021-10-13 01:10:10,089 INFO L226 Difference]: Without dead ends: 20492 [2021-10-13 01:10:10,101 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:10:10,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20492 states. [2021-10-13 01:10:10,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20492 to 17912. [2021-10-13 01:10:10,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17912 states, 17911 states have (on average 1.1021160180894423) internal successors, (19740), 17911 states have internal predecessors, (19740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:10,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17912 states to 17912 states and 19740 transitions. [2021-10-13 01:10:10,380 INFO L78 Accepts]: Start accepts. Automaton has 17912 states and 19740 transitions. Word has length 545 [2021-10-13 01:10:10,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:10:10,381 INFO L470 AbstractCegarLoop]: Abstraction has 17912 states and 19740 transitions. [2021-10-13 01:10:10,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:10,381 INFO L276 IsEmpty]: Start isEmpty. Operand 17912 states and 19740 transitions. [2021-10-13 01:10:10,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2021-10-13 01:10:10,400 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:10:10,400 INFO L512 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-10-13 01:10:10,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-13 01:10:10,401 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:10:10,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:10,402 INFO L82 PathProgramCache]: Analyzing trace with hash 50467656, now seen corresponding path program 1 times [2021-10-13 01:10:10,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:10,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587661905] [2021-10-13 01:10:10,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:10,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:10,865 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-10-13 01:10:10,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:10,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587661905] [2021-10-13 01:10:10,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587661905] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:10:10,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:10:10,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 01:10:10,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118200640] [2021-10-13 01:10:10,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 01:10:10,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:10,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 01:10:10,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:10:10,869 INFO L87 Difference]: Start difference. First operand 17912 states and 19740 transitions. Second operand has 7 states, 7 states have (on average 57.714285714285715) internal successors, (404), 6 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:12,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:12,485 INFO L93 Difference]: Finished difference Result 36690 states and 40382 transitions. [2021-10-13 01:10:12,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 01:10:12,486 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 57.714285714285715) internal successors, (404), 6 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 555 [2021-10-13 01:10:12,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:10:12,513 INFO L225 Difference]: With dead ends: 36690 [2021-10-13 01:10:12,513 INFO L226 Difference]: Without dead ends: 21174 [2021-10-13 01:10:12,525 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 92.2ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-13 01:10:12,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21174 states. [2021-10-13 01:10:12,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21174 to 18464. [2021-10-13 01:10:12,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18464 states, 18463 states have (on average 1.1026377078481286) internal successors, (20358), 18463 states have internal predecessors, (20358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:12,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18464 states to 18464 states and 20358 transitions. [2021-10-13 01:10:12,759 INFO L78 Accepts]: Start accepts. Automaton has 18464 states and 20358 transitions. Word has length 555 [2021-10-13 01:10:12,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:10:12,760 INFO L470 AbstractCegarLoop]: Abstraction has 18464 states and 20358 transitions. [2021-10-13 01:10:12,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 57.714285714285715) internal successors, (404), 6 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:12,760 INFO L276 IsEmpty]: Start isEmpty. Operand 18464 states and 20358 transitions. [2021-10-13 01:10:12,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2021-10-13 01:10:12,773 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:10:12,773 INFO L512 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-10-13 01:10:12,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-13 01:10:12,773 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:10:12,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:12,774 INFO L82 PathProgramCache]: Analyzing trace with hash -304859615, now seen corresponding path program 1 times [2021-10-13 01:10:12,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:12,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798077934] [2021-10-13 01:10:12,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:12,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:13,278 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 665 proven. 8 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-10-13 01:10:13,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:13,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798077934] [2021-10-13 01:10:13,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798077934] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:10:13,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147572014] [2021-10-13 01:10:13,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:13,279 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:10:13,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:13,282 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:10:13,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-13 01:10:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:13,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 01:10:13,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:10:17,044 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 552 proven. 121 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-10-13 01:10:17,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147572014] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:10:17,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:10:17,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2021-10-13 01:10:17,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759797833] [2021-10-13 01:10:17,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 01:10:17,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:17,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 01:10:17,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-13 01:10:17,048 INFO L87 Difference]: Start difference. First operand 18464 states and 20358 transitions. Second operand has 9 states, 9 states have (on average 77.55555555555556) internal successors, (698), 8 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:20,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:20,264 INFO L93 Difference]: Finished difference Result 37978 states and 41796 transitions. [2021-10-13 01:10:20,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 01:10:20,265 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 77.55555555555556) internal successors, (698), 8 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 565 [2021-10-13 01:10:20,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:10:20,283 INFO L225 Difference]: With dead ends: 37978 [2021-10-13 01:10:20,283 INFO L226 Difference]: Without dead ends: 21910 [2021-10-13 01:10:20,291 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 564 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 424.9ms TimeCoverageRelationStatistics Valid=173, Invalid=427, Unknown=0, NotChecked=0, Total=600 [2021-10-13 01:10:20,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21910 states. [2021-10-13 01:10:20,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21910 to 20674. [2021-10-13 01:10:20,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20674 states, 20673 states have (on average 1.0989212983118077) internal successors, (22718), 20673 states have internal predecessors, (22718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:20,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20674 states to 20674 states and 22718 transitions. [2021-10-13 01:10:20,537 INFO L78 Accepts]: Start accepts. Automaton has 20674 states and 22718 transitions. Word has length 565 [2021-10-13 01:10:20,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:10:20,537 INFO L470 AbstractCegarLoop]: Abstraction has 20674 states and 22718 transitions. [2021-10-13 01:10:20,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 77.55555555555556) internal successors, (698), 8 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:20,538 INFO L276 IsEmpty]: Start isEmpty. Operand 20674 states and 22718 transitions. [2021-10-13 01:10:20,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2021-10-13 01:10:20,551 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:10:20,551 INFO L512 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:20,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:20,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:10:20,752 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:10:20,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:20,753 INFO L82 PathProgramCache]: Analyzing trace with hash 988145073, now seen corresponding path program 1 times [2021-10-13 01:10:20,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:20,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285624718] [2021-10-13 01:10:20,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:20,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:21,004 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 632 proven. 200 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-10-13 01:10:21,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:21,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285624718] [2021-10-13 01:10:21,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285624718] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:10:21,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408191886] [2021-10-13 01:10:21,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:21,005 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:10:21,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:21,006 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:10:21,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-13 01:10:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:21,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 01:10:21,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:10:23,801 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 679 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-10-13 01:10:23,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408191886] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:10:23,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:10:23,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-13 01:10:23,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127924854] [2021-10-13 01:10:23,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:10:23,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:23,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:10:23,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:10:23,805 INFO L87 Difference]: Start difference. First operand 20674 states and 22718 transitions. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:24,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:24,553 INFO L93 Difference]: Finished difference Result 39146 states and 43067 transitions. [2021-10-13 01:10:24,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:10:24,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 570 [2021-10-13 01:10:24,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:10:24,574 INFO L225 Difference]: With dead ends: 39146 [2021-10-13 01:10:24,574 INFO L226 Difference]: Without dead ends: 21052 [2021-10-13 01:10:24,584 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 571 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.2ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:10:24,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21052 states. [2021-10-13 01:10:24,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21052 to 20862. [2021-10-13 01:10:24,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20862 states, 20861 states have (on average 1.097742198360577) internal successors, (22900), 20861 states have internal predecessors, (22900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:25,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20862 states to 20862 states and 22900 transitions. [2021-10-13 01:10:25,011 INFO L78 Accepts]: Start accepts. Automaton has 20862 states and 22900 transitions. Word has length 570 [2021-10-13 01:10:25,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:10:25,011 INFO L470 AbstractCegarLoop]: Abstraction has 20862 states and 22900 transitions. [2021-10-13 01:10:25,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:25,012 INFO L276 IsEmpty]: Start isEmpty. Operand 20862 states and 22900 transitions. [2021-10-13 01:10:25,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2021-10-13 01:10:25,032 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:10:25,033 INFO L512 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:25,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-13 01:10:25,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:10:25,234 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:10:25,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:25,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1668440305, now seen corresponding path program 1 times [2021-10-13 01:10:25,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:25,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148520102] [2021-10-13 01:10:25,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:25,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:25,539 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 699 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-10-13 01:10:25,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:25,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148520102] [2021-10-13 01:10:25,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148520102] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:10:25,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:10:25,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:10:25,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944795442] [2021-10-13 01:10:25,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:10:25,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:25,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:10:25,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:10:25,543 INFO L87 Difference]: Start difference. First operand 20862 states and 22900 transitions. Second operand has 4 states, 4 states have (on average 108.75) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:26,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:26,653 INFO L93 Difference]: Finished difference Result 42464 states and 46657 transitions. [2021-10-13 01:10:26,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:10:26,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 586 [2021-10-13 01:10:26,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:10:26,679 INFO L225 Difference]: With dead ends: 42464 [2021-10-13 01:10:26,679 INFO L226 Difference]: Without dead ends: 23998 [2021-10-13 01:10:26,690 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:10:26,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23998 states. [2021-10-13 01:10:27,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23998 to 22150. [2021-10-13 01:10:27,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22150 states, 22149 states have (on average 1.0966183574879227) internal successors, (24289), 22149 states have internal predecessors, (24289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:27,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22150 states to 22150 states and 24289 transitions. [2021-10-13 01:10:27,054 INFO L78 Accepts]: Start accepts. Automaton has 22150 states and 24289 transitions. Word has length 586 [2021-10-13 01:10:27,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:10:27,055 INFO L470 AbstractCegarLoop]: Abstraction has 22150 states and 24289 transitions. [2021-10-13 01:10:27,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:27,055 INFO L276 IsEmpty]: Start isEmpty. Operand 22150 states and 24289 transitions. [2021-10-13 01:10:27,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 590 [2021-10-13 01:10:27,078 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:10:27,078 INFO L512 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:27,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-13 01:10:27,079 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:10:27,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:27,079 INFO L82 PathProgramCache]: Analyzing trace with hash 864830933, now seen corresponding path program 1 times [2021-10-13 01:10:27,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:27,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612808014] [2021-10-13 01:10:27,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:27,080 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:27,376 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 679 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-10-13 01:10:27,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:27,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612808014] [2021-10-13 01:10:27,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612808014] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:10:27,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:10:27,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:10:27,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453763456] [2021-10-13 01:10:27,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:10:27,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:27,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:10:27,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:10:27,380 INFO L87 Difference]: Start difference. First operand 22150 states and 24289 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:28,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:28,947 INFO L93 Difference]: Finished difference Result 49272 states and 53979 transitions. [2021-10-13 01:10:28,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:10:28,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 589 [2021-10-13 01:10:28,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:10:28,978 INFO L225 Difference]: With dead ends: 49272 [2021-10-13 01:10:28,979 INFO L226 Difference]: Without dead ends: 27492 [2021-10-13 01:10:28,991 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:10:29,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27492 states. [2021-10-13 01:10:29,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27492 to 26933. [2021-10-13 01:10:29,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26933 states, 26932 states have (on average 1.084769047972672) internal successors, (29215), 26932 states have internal predecessors, (29215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:29,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26933 states to 26933 states and 29215 transitions. [2021-10-13 01:10:29,438 INFO L78 Accepts]: Start accepts. Automaton has 26933 states and 29215 transitions. Word has length 589 [2021-10-13 01:10:29,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:10:29,438 INFO L470 AbstractCegarLoop]: Abstraction has 26933 states and 29215 transitions. [2021-10-13 01:10:29,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:29,439 INFO L276 IsEmpty]: Start isEmpty. Operand 26933 states and 29215 transitions. [2021-10-13 01:10:29,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2021-10-13 01:10:29,462 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:10:29,463 INFO L512 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2021-10-13 01:10:29,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-13 01:10:29,463 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:10:29,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:29,463 INFO L82 PathProgramCache]: Analyzing trace with hash 132729374, now seen corresponding path program 1 times [2021-10-13 01:10:29,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:29,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155971716] [2021-10-13 01:10:29,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:29,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:29,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 1049 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2021-10-13 01:10:29,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:29,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155971716] [2021-10-13 01:10:29,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155971716] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:10:29,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:10:29,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 01:10:29,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680721918] [2021-10-13 01:10:29,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:10:29,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:29,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:10:29,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:10:29,757 INFO L87 Difference]: Start difference. First operand 26933 states and 29215 transitions. Second operand has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:31,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:31,207 INFO L93 Difference]: Finished difference Result 55346 states and 60150 transitions. [2021-10-13 01:10:31,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:10:31,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 607 [2021-10-13 01:10:31,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:10:31,244 INFO L225 Difference]: With dead ends: 55346 [2021-10-13 01:10:31,244 INFO L226 Difference]: Without dead ends: 30811 [2021-10-13 01:10:31,258 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:10:31,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30811 states. [2021-10-13 01:10:31,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30811 to 29144. [2021-10-13 01:10:31,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29144 states, 29143 states have (on average 1.0824211646021342) internal successors, (31545), 29143 states have internal predecessors, (31545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:31,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29144 states to 29144 states and 31545 transitions. [2021-10-13 01:10:31,866 INFO L78 Accepts]: Start accepts. Automaton has 29144 states and 31545 transitions. Word has length 607 [2021-10-13 01:10:31,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:10:31,867 INFO L470 AbstractCegarLoop]: Abstraction has 29144 states and 31545 transitions. [2021-10-13 01:10:31,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:31,867 INFO L276 IsEmpty]: Start isEmpty. Operand 29144 states and 31545 transitions. [2021-10-13 01:10:31,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2021-10-13 01:10:31,886 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:10:31,886 INFO L512 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:31,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-13 01:10:31,887 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:10:31,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:31,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1889954898, now seen corresponding path program 1 times [2021-10-13 01:10:31,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:31,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300133647] [2021-10-13 01:10:31,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:31,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:32,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1375 backedges. 1027 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2021-10-13 01:10:32,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:32,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300133647] [2021-10-13 01:10:32,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300133647] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:10:32,199 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:10:32,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 01:10:32,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745602177] [2021-10-13 01:10:32,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:10:32,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:32,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:10:32,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:10:32,202 INFO L87 Difference]: Start difference. First operand 29144 states and 31545 transitions. Second operand has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:33,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:33,683 INFO L93 Difference]: Finished difference Result 67323 states and 72893 transitions. [2021-10-13 01:10:33,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:10:33,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 681 [2021-10-13 01:10:33,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:10:33,727 INFO L225 Difference]: With dead ends: 67323 [2021-10-13 01:10:33,727 INFO L226 Difference]: Without dead ends: 40761 [2021-10-13 01:10:33,742 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:10:33,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40761 states. [2021-10-13 01:10:34,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40761 to 35782. [2021-10-13 01:10:34,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35782 states, 35781 states have (on average 1.0804896453425001) internal successors, (38661), 35781 states have internal predecessors, (38661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:34,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35782 states to 35782 states and 38661 transitions. [2021-10-13 01:10:34,554 INFO L78 Accepts]: Start accepts. Automaton has 35782 states and 38661 transitions. Word has length 681 [2021-10-13 01:10:34,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:10:34,554 INFO L470 AbstractCegarLoop]: Abstraction has 35782 states and 38661 transitions. [2021-10-13 01:10:34,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:34,555 INFO L276 IsEmpty]: Start isEmpty. Operand 35782 states and 38661 transitions. [2021-10-13 01:10:34,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2021-10-13 01:10:34,585 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:10:34,586 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:34,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-13 01:10:34,586 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:10:34,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:34,587 INFO L82 PathProgramCache]: Analyzing trace with hash 63411677, now seen corresponding path program 1 times [2021-10-13 01:10:34,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:34,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118138832] [2021-10-13 01:10:34,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:34,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:34,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2426 backedges. 1438 proven. 0 refuted. 0 times theorem prover too weak. 988 trivial. 0 not checked. [2021-10-13 01:10:34,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:34,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118138832] [2021-10-13 01:10:34,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118138832] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:10:34,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:10:34,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:10:34,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286762871] [2021-10-13 01:10:34,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:10:34,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:34,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:10:34,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:10:34,963 INFO L87 Difference]: Start difference. First operand 35782 states and 38661 transitions. Second operand has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:36,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:36,112 INFO L93 Difference]: Finished difference Result 70477 states and 76233 transitions. [2021-10-13 01:10:36,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:10:36,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 900 [2021-10-13 01:10:36,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:10:36,150 INFO L225 Difference]: With dead ends: 70477 [2021-10-13 01:10:36,150 INFO L226 Difference]: Without dead ends: 37093 [2021-10-13 01:10:36,165 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:10:36,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37093 states. [2021-10-13 01:10:36,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37093 to 30630. [2021-10-13 01:10:36,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30630 states, 30629 states have (on average 1.0744392569133827) internal successors, (32909), 30629 states have internal predecessors, (32909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:36,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30630 states to 30630 states and 32909 transitions. [2021-10-13 01:10:36,784 INFO L78 Accepts]: Start accepts. Automaton has 30630 states and 32909 transitions. Word has length 900 [2021-10-13 01:10:36,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:10:36,785 INFO L470 AbstractCegarLoop]: Abstraction has 30630 states and 32909 transitions. [2021-10-13 01:10:36,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:36,785 INFO L276 IsEmpty]: Start isEmpty. Operand 30630 states and 32909 transitions. [2021-10-13 01:10:36,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 924 [2021-10-13 01:10:36,813 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:10:36,814 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 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, 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] [2021-10-13 01:10:36,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-13 01:10:36,814 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:10:36,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:36,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1056427581, now seen corresponding path program 1 times [2021-10-13 01:10:36,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:36,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388054082] [2021-10-13 01:10:36,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:36,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:37,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2513 backedges. 1997 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2021-10-13 01:10:37,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:37,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388054082] [2021-10-13 01:10:37,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388054082] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:10:37,199 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:10:37,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 01:10:37,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848766488] [2021-10-13 01:10:37,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 01:10:37,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:37,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:10:37,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:10:37,204 INFO L87 Difference]: Start difference. First operand 30630 states and 32909 transitions. Second operand has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:38,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:38,870 INFO L93 Difference]: Finished difference Result 64218 states and 68986 transitions. [2021-10-13 01:10:38,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:10:38,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 923 [2021-10-13 01:10:38,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:10:38,903 INFO L225 Difference]: With dead ends: 64218 [2021-10-13 01:10:38,903 INFO L226 Difference]: Without dead ends: 34698 [2021-10-13 01:10:38,918 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:10:38,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34698 states. [2021-10-13 01:10:39,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34698 to 24360. [2021-10-13 01:10:39,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24360 states, 24359 states have (on average 1.075208341885956) internal successors, (26191), 24359 states have internal predecessors, (26191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:39,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24360 states to 24360 states and 26191 transitions. [2021-10-13 01:10:39,433 INFO L78 Accepts]: Start accepts. Automaton has 24360 states and 26191 transitions. Word has length 923 [2021-10-13 01:10:39,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:10:39,434 INFO L470 AbstractCegarLoop]: Abstraction has 24360 states and 26191 transitions. [2021-10-13 01:10:39,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:39,434 INFO L276 IsEmpty]: Start isEmpty. Operand 24360 states and 26191 transitions. [2021-10-13 01:10:39,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1281 [2021-10-13 01:10:39,460 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:10:39,461 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:39,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-13 01:10:39,461 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:10:39,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:39,462 INFO L82 PathProgramCache]: Analyzing trace with hash 786284418, now seen corresponding path program 1 times [2021-10-13 01:10:39,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:39,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980612002] [2021-10-13 01:10:39,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:39,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:40,105 INFO L134 CoverageAnalysis]: Checked inductivity of 5278 backedges. 3284 proven. 0 refuted. 0 times theorem prover too weak. 1994 trivial. 0 not checked. [2021-10-13 01:10:40,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:40,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980612002] [2021-10-13 01:10:40,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980612002] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:10:40,106 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:10:40,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:10:40,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754098472] [2021-10-13 01:10:40,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 01:10:40,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:40,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:10:40,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:10:40,109 INFO L87 Difference]: Start difference. First operand 24360 states and 26191 transitions. Second operand has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:40,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:40,776 INFO L93 Difference]: Finished difference Result 36905 states and 39567 transitions. [2021-10-13 01:10:40,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:10:40,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1280 [2021-10-13 01:10:40,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 01:10:40,777 INFO L225 Difference]: With dead ends: 36905 [2021-10-13 01:10:40,777 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 01:10:40,787 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:10:40,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 01:10:40,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 01:10:40,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:40,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 01:10:40,788 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1280 [2021-10-13 01:10:40,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 01:10:40,788 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:10:40,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:40,789 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:10:40,789 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 01:10:40,791 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 01:10:40,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-13 01:10:40,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 01:10:40,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:10:45,593 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:10:49,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 01:10:54,862 WARN L207 SmtUtils]: Spent 5.26 s on a formula simplification. DAG size of input: 726 DAG size of output: 110 [2021-10-13 01:11:00,106 WARN L207 SmtUtils]: Spent 5.24 s on a formula simplification. DAG size of input: 717 DAG size of output: 110 [2021-10-13 01:11:00,109 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-10-13 01:11:00,109 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,109 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-10-13 01:11:00,110 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,110 INFO L857 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,110 INFO L857 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,111 INFO L857 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,111 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,111 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,111 INFO L857 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-10-13 01:11:00,112 INFO L857 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-10-13 01:11:00,112 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-10-13 01:11:00,113 INFO L857 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,113 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,113 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,113 INFO L857 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,113 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,113 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,114 INFO L857 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,114 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,114 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,114 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,114 INFO L857 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-10-13 01:11:00,114 INFO L857 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-10-13 01:11:00,114 INFO L857 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-10-13 01:11:00,115 INFO L857 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,115 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-10-13 01:11:00,115 INFO L857 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-10-13 01:11:00,115 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,115 INFO L857 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,115 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,115 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,116 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,116 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,116 INFO L857 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-10-13 01:11:00,116 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-10-13 01:11:00,116 INFO L857 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-10-13 01:11:00,116 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,117 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,117 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,117 INFO L853 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse11 (<= (+ ~a23~0 55) 0)) (.cse10 (<= ~a23~0 312)) (.cse8 (<= (+ ~a23~0 304) 0)) (.cse3 (<= ~a29~0 220)) (.cse7 (= ~a25~0 11)) (.cse17 (<= (+ ~a23~0 43) 0)) (.cse6 (= ~a4~0 0)) (.cse13 (<= (+ 28470 ~a29~0) 0)) (.cse19 (= ~a25~0 9)) (.cse18 (<= ~a29~0 277)) (.cse12 (= ~a25~0 12)) (.cse20 (<= ~a29~0 275)) (.cse1 (< 140 ~a29~0)) (.cse9 (<= ~a25~0 10)) (.cse0 (= ~a25~0 13)) (.cse14 (<= 160 ~a23~0)) (.cse15 (<= ~a23~0 600000)) (.cse2 (= ~a3~0 1)) (.cse4 (= ~a4~0 1)) (.cse5 (= ~a8~0 15)) (.cse16 (= ~a25~0 10))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse2 .cse3 .cse5) (and .cse9 .cse2 .cse4 .cse10 .cse5) (and .cse11 .cse12 .cse6 .cse13 .cse2 .cse5) (and .cse12 .cse2 .cse4 .cse10 .cse5 .cse14) (and .cse0 .cse11 .cse1 (<= ~a29~0 245) .cse2 .cse4 .cse5) (and .cse15 .cse1 .cse9 .cse2 .cse4 .cse5) (and .cse0 .cse1 (<= ~a29~0 240) .cse2 .cse4 .cse10 .cse5) (and .cse6 .cse8 .cse2 .cse3 .cse5 .cse16) (and (<= 260 ~a29~0) .cse17 (or .cse18 (not (= 2 ULTIMATE.start_calculate_output_~input))) .cse6 .cse19 .cse2 .cse5) (and .cse1 .cse7 (<= ~a29~0 274) (<= (+ 119992 ~a23~0) 0) .cse4 .cse5) (and .cse15 .cse1 .cse7 .cse2 .cse4 .cse5) (and .cse20 .cse12 .cse1 .cse6 .cse2 .cse5) (and .cse17 .cse6 .cse13 .cse19 .cse2 .cse5) (and .cse15 (or (not (= 6 ULTIMATE.start_calculate_output_~input)) .cse18) .cse12 .cse1 .cse2 (< 306 ~a23~0) .cse4 .cse5) (and .cse20 .cse1 .cse9 .cse2 .cse4 .cse5) (and .cse0 .cse15 .cse2 .cse4 .cse5 .cse14) (and .cse15 .cse2 .cse4 .cse5 .cse16))) [2021-10-13 01:11:00,117 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,118 INFO L857 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-10-13 01:11:00,118 INFO L857 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-10-13 01:11:00,118 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,118 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,118 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,118 INFO L857 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,118 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,119 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,119 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-10-13 01:11:00,119 INFO L857 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-10-13 01:11:00,119 INFO L857 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-10-13 01:11:00,119 INFO L860 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-10-13 01:11:00,119 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,120 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,120 INFO L857 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,120 INFO L857 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,120 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,120 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,120 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,120 INFO L857 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-10-13 01:11:00,121 INFO L857 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-10-13 01:11:00,121 INFO L857 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-10-13 01:11:00,121 INFO L857 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,121 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,121 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,121 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,121 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,122 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,122 INFO L857 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,122 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,122 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,122 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-10-13 01:11:00,122 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-10-13 01:11:00,123 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-10-13 01:11:00,123 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,123 INFO L853 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse11 (<= (+ ~a23~0 55) 0)) (.cse10 (<= ~a23~0 312)) (.cse8 (<= (+ ~a23~0 304) 0)) (.cse3 (<= ~a29~0 220)) (.cse7 (= ~a25~0 11)) (.cse17 (<= (+ ~a23~0 43) 0)) (.cse6 (= ~a4~0 0)) (.cse13 (<= (+ 28470 ~a29~0) 0)) (.cse19 (= ~a25~0 9)) (.cse18 (<= ~a29~0 277)) (.cse12 (= ~a25~0 12)) (.cse20 (<= ~a29~0 275)) (.cse1 (< 140 ~a29~0)) (.cse9 (<= ~a25~0 10)) (.cse0 (= ~a25~0 13)) (.cse14 (<= 160 ~a23~0)) (.cse15 (<= ~a23~0 600000)) (.cse2 (= ~a3~0 1)) (.cse4 (= ~a4~0 1)) (.cse5 (= ~a8~0 15)) (.cse16 (= ~a25~0 10))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse2 .cse3 .cse5) (and .cse9 .cse2 .cse4 .cse10 .cse5) (and .cse11 .cse12 .cse6 .cse13 .cse2 .cse5) (and .cse12 .cse2 .cse4 .cse10 .cse5 .cse14) (and .cse0 .cse11 .cse1 (<= ~a29~0 245) .cse2 .cse4 .cse5) (and .cse15 .cse1 .cse9 .cse2 .cse4 .cse5) (and .cse0 .cse1 (<= ~a29~0 240) .cse2 .cse4 .cse10 .cse5) (and .cse6 .cse8 .cse2 .cse3 .cse5 .cse16) (and (<= 260 ~a29~0) .cse17 (or .cse18 (not (= 2 ULTIMATE.start_calculate_output_~input))) .cse6 .cse19 .cse2 .cse5) (and .cse1 .cse7 (<= ~a29~0 274) (<= (+ 119992 ~a23~0) 0) .cse4 .cse5) (and .cse15 .cse1 .cse7 .cse2 .cse4 .cse5) (and .cse20 .cse12 .cse1 .cse6 .cse2 .cse5) (and .cse17 .cse6 .cse13 .cse19 .cse2 .cse5) (and .cse15 (or (not (= 6 ULTIMATE.start_calculate_output_~input)) .cse18) .cse12 .cse1 .cse2 (< 306 ~a23~0) .cse4 .cse5) (and .cse20 .cse1 .cse9 .cse2 .cse4 .cse5) (and .cse0 .cse15 .cse2 .cse4 .cse5 .cse14) (and .cse15 .cse2 .cse4 .cse5 .cse16))) [2021-10-13 01:11:00,123 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,123 INFO L857 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,124 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,124 INFO L857 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,124 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,124 INFO L857 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,124 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,124 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,124 INFO L857 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-10-13 01:11:00,125 INFO L857 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-10-13 01:11:00,125 INFO L857 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-10-13 01:11:00,125 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-10-13 01:11:00,125 INFO L857 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-10-13 01:11:00,125 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-10-13 01:11:00,125 INFO L857 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-10-13 01:11:00,125 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,126 INFO L857 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,126 INFO L857 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,126 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,126 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,126 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,126 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,127 INFO L857 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,127 INFO L857 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,127 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,127 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 01:11:00,127 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-10-13 01:11:00,127 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-10-13 01:11:00,127 INFO L857 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-10-13 01:11:00,128 INFO L857 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-10-13 01:11:00,128 INFO L857 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,128 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,128 INFO L857 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,128 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,128 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,128 INFO L857 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-10-13 01:11:00,129 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-10-13 01:11:00,129 INFO L857 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-10-13 01:11:00,129 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,129 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,130 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,130 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,130 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-10-13 01:11:00,130 INFO L857 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-10-13 01:11:00,130 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,130 INFO L857 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,130 INFO L857 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,131 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,131 INFO L857 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,131 INFO L857 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,131 INFO L857 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-10-13 01:11:00,131 INFO L857 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-10-13 01:11:00,131 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,131 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,132 INFO L857 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-10-13 01:11:00,132 INFO L857 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-10-13 01:11:00,132 INFO L857 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-10-13 01:11:00,133 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 01:11:00,133 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 181) no Hoare annotation was computed. [2021-10-13 01:11:00,133 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,133 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,133 INFO L857 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,134 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,134 INFO L857 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,134 INFO L857 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,134 INFO L857 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,134 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-10-13 01:11:00,134 INFO L857 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-10-13 01:11:00,134 INFO L857 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-10-13 01:11:00,135 INFO L857 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-10-13 01:11:00,135 INFO L857 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-10-13 01:11:00,135 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-10-13 01:11:00,135 INFO L857 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-10-13 01:11:00,135 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,135 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,136 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-10-13 01:11:00,136 INFO L857 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-10-13 01:11:00,136 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,136 INFO L857 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,136 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,136 INFO L857 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,136 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,137 INFO L857 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-10-13 01:11:00,137 INFO L857 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-10-13 01:11:00,137 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-10-13 01:11:00,137 INFO L857 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,137 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,137 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,137 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,138 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,138 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,138 INFO L857 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-10-13 01:11:00,138 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-10-13 01:11:00,138 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-10-13 01:11:00,138 INFO L857 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,138 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,139 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,139 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,139 INFO L857 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,139 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,139 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,139 INFO L857 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,139 INFO L857 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-10-13 01:11:00,140 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-10-13 01:11:00,140 INFO L857 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-10-13 01:11:00,140 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,140 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,140 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,140 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,141 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,141 INFO L857 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,141 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,141 INFO L857 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,141 INFO L857 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,141 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,141 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,142 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-10-13 01:11:00,142 INFO L857 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-10-13 01:11:00,142 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-13 01:11:00,142 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-10-13 01:11:00,142 INFO L857 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-10-13 01:11:00,142 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,142 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,143 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,143 INFO L857 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,143 INFO L857 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,143 INFO L857 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,143 INFO L857 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,143 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-10-13 01:11:00,143 INFO L857 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-10-13 01:11:00,144 INFO L857 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-10-13 01:11:00,144 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,144 INFO L857 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,144 INFO L857 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,144 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-10-13 01:11:00,144 INFO L857 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-10-13 01:11:00,145 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,145 INFO L857 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,145 INFO L857 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,145 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,145 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,145 INFO L857 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-10-13 01:11:00,145 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-10-13 01:11:00,146 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,146 INFO L857 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,146 INFO L857 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-10-13 01:11:00,147 INFO L857 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-10-13 01:11:00,147 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,147 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 01:11:00,147 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,147 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,147 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,147 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,148 INFO L857 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,148 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-10-13 01:11:00,148 INFO L857 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-10-13 01:11:00,148 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-10-13 01:11:00,148 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-10-13 01:11:00,148 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,148 INFO L857 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,149 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,149 INFO L857 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,149 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,149 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,149 INFO L857 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,149 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,150 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-10-13 01:11:00,150 INFO L857 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-10-13 01:11:00,151 INFO L857 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-10-13 01:11:00,151 INFO L857 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-10-13 01:11:00,152 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-10-13 01:11:00,152 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-10-13 01:11:00,152 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,152 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,153 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,153 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,153 INFO L857 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,155 INFO L857 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,155 INFO L857 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,156 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-10-13 01:11:00,156 INFO L857 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-10-13 01:11:00,156 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 01:11:00,156 INFO L857 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,156 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,157 INFO L857 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,157 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,157 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,158 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,158 INFO L857 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-10-13 01:11:00,158 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-10-13 01:11:00,158 INFO L857 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,158 INFO L857 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,158 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,158 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,159 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,159 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,159 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,159 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-10-13 01:11:00,159 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-10-13 01:11:00,159 INFO L857 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,159 INFO L857 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,160 INFO L857 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-10-13 01:11:00,160 INFO L857 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-10-13 01:11:00,160 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-10-13 01:11:00,160 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-10-13 01:11:00,167 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 01:11:00,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:11:00 BoogieIcfgContainer [2021-10-13 01:11:00,234 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 01:11:00,235 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:11:00,235 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:11:00,235 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:11:00,236 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:09:26" (3/4) ... [2021-10-13 01:11:00,239 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 01:11:00,266 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 01:11:00,268 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 01:11:00,270 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:11:00,272 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 01:11:00,436 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:11:00,436 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:11:00,437 INFO L168 Benchmark]: Toolchain (without parser) took 97750.79 ms. Allocated memory was 79.7 MB in the beginning and 4.5 GB in the end (delta: 4.4 GB). Free memory was 39.0 MB in the beginning and 2.8 GB in the end (delta: -2.8 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.1 GB. [2021-10-13 01:11:00,438 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 79.7 MB. Free memory is still 58.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:11:00,438 INFO L168 Benchmark]: CACSL2BoogieTranslator took 966.34 ms. Allocated memory was 79.7 MB in the beginning and 107.0 MB in the end (delta: 27.3 MB). Free memory was 38.8 MB in the beginning and 48.3 MB in the end (delta: -9.5 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:11:00,439 INFO L168 Benchmark]: Boogie Procedure Inliner took 212.37 ms. Allocated memory is still 107.0 MB. Free memory was 48.3 MB in the beginning and 67.4 MB in the end (delta: -19.1 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:11:00,439 INFO L168 Benchmark]: Boogie Preprocessor took 123.49 ms. Allocated memory is still 107.0 MB. Free memory was 67.4 MB in the beginning and 57.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:11:00,440 INFO L168 Benchmark]: RCFGBuilder took 2073.10 ms. Allocated memory was 107.0 MB in the beginning and 197.1 MB in the end (delta: 90.2 MB). Free memory was 57.6 MB in the beginning and 109.7 MB in the end (delta: -52.1 MB). Peak memory consumption was 43.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:11:00,440 INFO L168 Benchmark]: TraceAbstraction took 94165.16 ms. Allocated memory was 197.1 MB in the beginning and 4.5 GB in the end (delta: 4.3 GB). Free memory was 109.7 MB in the beginning and 2.9 GB in the end (delta: -2.7 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.1 GB. [2021-10-13 01:11:00,440 INFO L168 Benchmark]: Witness Printer took 201.47 ms. Allocated memory is still 4.5 GB. Free memory was 2.9 GB in the beginning and 2.8 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:11:00,443 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 79.7 MB. Free memory is still 58.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 966.34 ms. Allocated memory was 79.7 MB in the beginning and 107.0 MB in the end (delta: 27.3 MB). Free memory was 38.8 MB in the beginning and 48.3 MB in the end (delta: -9.5 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 212.37 ms. Allocated memory is still 107.0 MB. Free memory was 48.3 MB in the beginning and 67.4 MB in the end (delta: -19.1 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 123.49 ms. Allocated memory is still 107.0 MB. Free memory was 67.4 MB in the beginning and 57.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2073.10 ms. Allocated memory was 107.0 MB in the beginning and 197.1 MB in the end (delta: 90.2 MB). Free memory was 57.6 MB in the beginning and 109.7 MB in the end (delta: -52.1 MB). Peak memory consumption was 43.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 94165.16 ms. Allocated memory was 197.1 MB in the beginning and 4.5 GB in the end (delta: 4.3 GB). Free memory was 109.7 MB in the beginning and 2.9 GB in the end (delta: -2.7 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.1 GB. * Witness Printer took 201.47 ms. Allocated memory is still 4.5 GB. Free memory was 2.9 GB in the beginning and 2.8 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 181]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 94008.5ms, OverallIterations: 30, TraceHistogramMax: 11, EmptinessCheckTime: 515.7ms, AutomataDifference: 40938.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 19316.3ms, InitialAbstractionConstructionTime: 24.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4650 SDtfs, 6101 SDslu, 914 SDs, 0 SdLazy, 25623 SolverSat, 4253 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27440.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2190 GetRequests, 2104 SyntacticMatches, 1 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 793.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=35782occurred in iteration=27, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 9627.4ms AutomataMinimizationTime, 30 MinimizatonAttempts, 47674 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 169 NumberOfFragments, 761 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2084710 FormulaSimplificationTreeSizeReduction, 8791.8ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 869935 FormulaSimplificationTreeSizeReductionInter, 10507.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 871.5ms SsaConstructionTime, 2354.7ms SatisfiabilityAnalysisTime, 16558.8ms InterpolantComputationTime, 15917 NumberOfCodeBlocks, 15917 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 15882 ConstructedInterpolants, 0 QuantifiedInterpolants, 52977 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2816 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 35 InterpolantComputations, 27 PerfectInterpolantSequences, 25787/26426 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((a25 == 13 && 140 < a29) && a3 == 1) && a29 <= 220) && a4 == 1) && a8 == 15) || (((((a4 == 0 && a25 == 11) && a23 + 304 <= 0) && a3 == 1) && a29 <= 220) && a8 == 15)) || ((((a25 <= 10 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((((a23 + 55 <= 0 && a25 == 12) && a4 == 0) && 28470 + a29 <= 0) && a3 == 1) && a8 == 15)) || (((((a25 == 12 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) && 160 <= a23)) || ((((((a25 == 13 && a23 + 55 <= 0) && 140 < a29) && a29 <= 245) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a23 <= 600000 && 140 < a29) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((a25 == 13 && 140 < a29) && a29 <= 240) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((((a4 == 0 && a23 + 304 <= 0) && a3 == 1) && a29 <= 220) && a8 == 15) && a25 == 10)) || ((((((260 <= a29 && a23 + 43 <= 0) && (a29 <= 277 || !(2 == input))) && a4 == 0) && a25 == 9) && a3 == 1) && a8 == 15)) || (((((140 < a29 && a25 == 11) && a29 <= 274) && 119992 + a23 <= 0) && a4 == 1) && a8 == 15)) || (((((a23 <= 600000 && 140 < a29) && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a29 <= 275 && a25 == 12) && 140 < a29) && a4 == 0) && a3 == 1) && a8 == 15)) || (((((a23 + 43 <= 0 && a4 == 0) && 28470 + a29 <= 0) && a25 == 9) && a3 == 1) && a8 == 15)) || (((((((a23 <= 600000 && (!(6 == input) || a29 <= 277)) && a25 == 12) && 140 < a29) && a3 == 1) && 306 < a23) && a4 == 1) && a8 == 15)) || (((((a29 <= 275 && 140 < a29) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a25 == 13 && a23 <= 600000) && a3 == 1) && a4 == 1) && a8 == 15) && 160 <= a23)) || ((((a23 <= 600000 && a3 == 1) && a4 == 1) && a8 == 15) && a25 == 10) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((((((a25 == 13 && 140 < a29) && a3 == 1) && a29 <= 220) && a4 == 1) && a8 == 15) || (((((a4 == 0 && a25 == 11) && a23 + 304 <= 0) && a3 == 1) && a29 <= 220) && a8 == 15)) || ((((a25 <= 10 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((((a23 + 55 <= 0 && a25 == 12) && a4 == 0) && 28470 + a29 <= 0) && a3 == 1) && a8 == 15)) || (((((a25 == 12 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) && 160 <= a23)) || ((((((a25 == 13 && a23 + 55 <= 0) && 140 < a29) && a29 <= 245) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a23 <= 600000 && 140 < a29) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((a25 == 13 && 140 < a29) && a29 <= 240) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((((a4 == 0 && a23 + 304 <= 0) && a3 == 1) && a29 <= 220) && a8 == 15) && a25 == 10)) || ((((((260 <= a29 && a23 + 43 <= 0) && (a29 <= 277 || !(2 == input))) && a4 == 0) && a25 == 9) && a3 == 1) && a8 == 15)) || (((((140 < a29 && a25 == 11) && a29 <= 274) && 119992 + a23 <= 0) && a4 == 1) && a8 == 15)) || (((((a23 <= 600000 && 140 < a29) && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a29 <= 275 && a25 == 12) && 140 < a29) && a4 == 0) && a3 == 1) && a8 == 15)) || (((((a23 + 43 <= 0 && a4 == 0) && 28470 + a29 <= 0) && a25 == 9) && a3 == 1) && a8 == 15)) || (((((((a23 <= 600000 && (!(6 == input) || a29 <= 277)) && a25 == 12) && 140 < a29) && a3 == 1) && 306 < a23) && a4 == 1) && a8 == 15)) || (((((a29 <= 275 && 140 < a29) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a25 == 13 && a23 <= 600000) && a3 == 1) && a4 == 1) && a8 == 15) && 160 <= a23)) || ((((a23 <= 600000 && a3 == 1) && a4 == 1) && a8 == 15) && a25 == 10) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 01:11:00,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0e7b1e-6137-4bc4-9ac6-306ba1e8a14c/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...