./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem03_label48.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem03_label48.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be --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 3f14d4f9bc9aeaf37fb25f1f86f7bc3a3a5a6ca0e3e96922bca4446f4d37ab9f ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:11:13,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:11:13,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:11:13,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:11:13,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:11:13,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:11:13,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:11:13,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:11:13,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:11:13,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:11:13,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:11:13,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:11:13,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:11:13,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:11:13,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:11:13,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:11:13,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:11:13,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:11:13,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:11:13,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:11:13,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:11:13,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:11:13,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:11:13,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:11:13,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:11:13,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:11:13,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:11:13,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:11:13,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:11:13,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:11:13,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:11:13,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:11:13,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:11:13,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:11:13,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:11:13,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:11:13,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:11:13,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:11:13,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:11:13,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:11:13,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:11:13,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:11:14,030 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:11:14,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:11:14,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:11:14,038 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:11:14,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:11:14,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:11:14,041 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:11:14,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:11:14,041 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:11:14,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:11:14,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:11:14,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:11:14,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:11:14,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:11:14,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:11:14,044 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:11:14,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:11:14,045 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:11:14,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:11:14,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:11:14,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:11:14,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:11:14,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:11:14,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:11:14,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:11:14,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:11:14,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:11:14,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:11:14,049 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:11:14,049 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:11:14,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:11:14,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:11:14,050 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_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f14d4f9bc9aeaf37fb25f1f86f7bc3a3a5a6ca0e3e96922bca4446f4d37ab9f [2021-10-21 19:11:14,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:11:14,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:11:14,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:11:14,406 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:11:14,407 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:11:14,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/eca-rers2012/Problem03_label48.c [2021-10-21 19:11:14,487 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/data/229366093/96efa6824063495e869ab71d58a167e2/FLAG3f62fc7ef [2021-10-21 19:11:15,114 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:11:15,115 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/sv-benchmarks/c/eca-rers2012/Problem03_label48.c [2021-10-21 19:11:15,140 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/data/229366093/96efa6824063495e869ab71d58a167e2/FLAG3f62fc7ef [2021-10-21 19:11:15,300 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/data/229366093/96efa6824063495e869ab71d58a167e2 [2021-10-21 19:11:15,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:11:15,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:11:15,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:11:15,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:11:15,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:11:15,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:11:15" (1/1) ... [2021-10-21 19:11:15,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a4ef488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:15, skipping insertion in model container [2021-10-21 19:11:15,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:11:15" (1/1) ... [2021-10-21 19:11:15,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:11:15,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:11:16,099 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_f42a7f26-9587-4b70-b0cc-f292d053f03d/sv-benchmarks/c/eca-rers2012/Problem03_label48.c[58935,58948] [2021-10-21 19:11:16,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:11:16,146 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:11:16,445 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_f42a7f26-9587-4b70-b0cc-f292d053f03d/sv-benchmarks/c/eca-rers2012/Problem03_label48.c[58935,58948] [2021-10-21 19:11:16,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:11:16,476 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:11:16,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:16 WrapperNode [2021-10-21 19:11:16,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:11:16,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:11:16,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:11:16,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:11:16,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:16" (1/1) ... [2021-10-21 19:11:16,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:16" (1/1) ... [2021-10-21 19:11:16,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:11:16,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:11:16,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:11:16,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:11:16,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:16" (1/1) ... [2021-10-21 19:11:16,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:16" (1/1) ... [2021-10-21 19:11:16,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:16" (1/1) ... [2021-10-21 19:11:16,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:16" (1/1) ... [2021-10-21 19:11:16,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:16" (1/1) ... [2021-10-21 19:11:16,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:16" (1/1) ... [2021-10-21 19:11:16,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:16" (1/1) ... [2021-10-21 19:11:16,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:11:16,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:11:16,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:11:16,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:11:16,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:16" (1/1) ... [2021-10-21 19:11:16,862 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:11:16,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:11:16,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:11:16,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:11:16,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:11:16,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:11:16,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:11:16,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:11:18,944 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:11:18,944 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 19:11:18,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:11:18 BoogieIcfgContainer [2021-10-21 19:11:18,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:11:18,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:11:18,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:11:18,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:11:18,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:11:15" (1/3) ... [2021-10-21 19:11:18,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc088ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:11:18, skipping insertion in model container [2021-10-21 19:11:18,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:11:16" (2/3) ... [2021-10-21 19:11:18,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc088ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:11:18, skipping insertion in model container [2021-10-21 19:11:18,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:11:18" (3/3) ... [2021-10-21 19:11:18,957 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem03_label48.c [2021-10-21 19:11:18,966 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:11:18,966 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:11:19,026 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:11:19,034 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, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-10-21 19:11:19,035 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:11:19,065 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 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) [2021-10-21 19:11:19,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-10-21 19:11:19,096 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:19,096 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:19,097 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:11:19,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:19,103 INFO L82 PathProgramCache]: Analyzing trace with hash -819677325, now seen corresponding path program 1 times [2021-10-21 19:11:19,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:19,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840256584] [2021-10-21 19:11:19,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:19,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:19,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:19,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:19,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840256584] [2021-10-21 19:11:19,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840256584] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:19,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:19,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:11:19,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541373644] [2021-10-21 19:11:19,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:11:19,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:19,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:11:19,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:11:19,732 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 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 61.0) internal successors, (183), 2 states have internal predecessors, (183), 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) [2021-10-21 19:11:20,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:20,889 INFO L93 Difference]: Finished difference Result 860 states and 1507 transitions. [2021-10-21 19:11:20,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:11:20,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 2 states have internal predecessors, (183), 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 183 [2021-10-21 19:11:20,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:20,907 INFO L225 Difference]: With dead ends: 860 [2021-10-21 19:11:20,907 INFO L226 Difference]: Without dead ends: 465 [2021-10-21 19:11:20,911 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:11:20,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2021-10-21 19:11:20,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 459. [2021-10-21 19:11:20,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 458 states have (on average 1.556768558951965) internal successors, (713), 458 states have internal predecessors, (713), 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) [2021-10-21 19:11:20,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 713 transitions. [2021-10-21 19:11:20,981 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 713 transitions. Word has length 183 [2021-10-21 19:11:20,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:20,983 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 713 transitions. [2021-10-21 19:11:20,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 2 states have internal predecessors, (183), 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) [2021-10-21 19:11:20,983 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 713 transitions. [2021-10-21 19:11:20,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-10-21 19:11:20,988 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:20,988 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:20,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:11:20,989 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:11:20,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:20,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1598798580, now seen corresponding path program 1 times [2021-10-21 19:11:20,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:20,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955281303] [2021-10-21 19:11:20,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:20,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:21,122 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:21,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:21,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955281303] [2021-10-21 19:11:21,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955281303] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:21,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:21,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:11:21,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210701495] [2021-10-21 19:11:21,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:11:21,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:21,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:11:21,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:11:21,127 INFO L87 Difference]: Start difference. First operand 459 states and 713 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 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) [2021-10-21 19:11:22,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:22,093 INFO L93 Difference]: Finished difference Result 1343 states and 2102 transitions. [2021-10-21 19:11:22,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:11:22,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 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 191 [2021-10-21 19:11:22,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:22,099 INFO L225 Difference]: With dead ends: 1343 [2021-10-21 19:11:22,100 INFO L226 Difference]: Without dead ends: 886 [2021-10-21 19:11:22,101 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:11:22,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2021-10-21 19:11:22,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 868. [2021-10-21 19:11:22,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 867 states have (on average 1.5340253748558246) internal successors, (1330), 867 states have internal predecessors, (1330), 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) [2021-10-21 19:11:22,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1330 transitions. [2021-10-21 19:11:22,176 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1330 transitions. Word has length 191 [2021-10-21 19:11:22,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:22,178 INFO L470 AbstractCegarLoop]: Abstraction has 868 states and 1330 transitions. [2021-10-21 19:11:22,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 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) [2021-10-21 19:11:22,179 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1330 transitions. [2021-10-21 19:11:22,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-10-21 19:11:22,184 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:22,185 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:22,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:11:22,186 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:11:22,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:22,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1173366829, now seen corresponding path program 1 times [2021-10-21 19:11:22,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:22,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565926124] [2021-10-21 19:11:22,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:22,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:22,360 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:22,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:22,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565926124] [2021-10-21 19:11:22,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565926124] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:22,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:22,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:11:22,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428098599] [2021-10-21 19:11:22,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:11:22,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:22,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:11:22,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:11:22,370 INFO L87 Difference]: Start difference. First operand 868 states and 1330 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 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) [2021-10-21 19:11:23,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:23,247 INFO L93 Difference]: Finished difference Result 2573 states and 3946 transitions. [2021-10-21 19:11:23,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:11:23,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 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 192 [2021-10-21 19:11:23,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:23,260 INFO L225 Difference]: With dead ends: 2573 [2021-10-21 19:11:23,260 INFO L226 Difference]: Without dead ends: 1707 [2021-10-21 19:11:23,262 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:11:23,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2021-10-21 19:11:23,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1704. [2021-10-21 19:11:23,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 1703 states have (on average 1.4486200822078685) internal successors, (2467), 1703 states have internal predecessors, (2467), 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) [2021-10-21 19:11:23,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 2467 transitions. [2021-10-21 19:11:23,323 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 2467 transitions. Word has length 192 [2021-10-21 19:11:23,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:23,323 INFO L470 AbstractCegarLoop]: Abstraction has 1704 states and 2467 transitions. [2021-10-21 19:11:23,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 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) [2021-10-21 19:11:23,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 2467 transitions. [2021-10-21 19:11:23,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-10-21 19:11:23,330 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:23,330 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:23,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 19:11:23,331 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:11:23,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:23,332 INFO L82 PathProgramCache]: Analyzing trace with hash -531252135, now seen corresponding path program 1 times [2021-10-21 19:11:23,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:23,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454933365] [2021-10-21 19:11:23,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:23,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:23,419 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:23,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:23,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454933365] [2021-10-21 19:11:23,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454933365] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:23,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:23,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:11:23,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121048391] [2021-10-21 19:11:23,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:11:23,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:23,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:11:23,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:11:23,423 INFO L87 Difference]: Start difference. First operand 1704 states and 2467 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 2 states have internal predecessors, (193), 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) [2021-10-21 19:11:24,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:24,353 INFO L93 Difference]: Finished difference Result 4238 states and 6117 transitions. [2021-10-21 19:11:24,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:11:24,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 2 states have internal predecessors, (193), 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 193 [2021-10-21 19:11:24,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:24,368 INFO L225 Difference]: With dead ends: 4238 [2021-10-21 19:11:24,368 INFO L226 Difference]: Without dead ends: 2536 [2021-10-21 19:11:24,371 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:11:24,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2536 states. [2021-10-21 19:11:24,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2536 to 2535. [2021-10-21 19:11:24,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2535 states, 2534 states have (on average 1.4183109707971586) internal successors, (3594), 2534 states have internal predecessors, (3594), 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) [2021-10-21 19:11:24,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2535 states to 2535 states and 3594 transitions. [2021-10-21 19:11:24,437 INFO L78 Accepts]: Start accepts. Automaton has 2535 states and 3594 transitions. Word has length 193 [2021-10-21 19:11:24,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:24,437 INFO L470 AbstractCegarLoop]: Abstraction has 2535 states and 3594 transitions. [2021-10-21 19:11:24,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 2 states have internal predecessors, (193), 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) [2021-10-21 19:11:24,438 INFO L276 IsEmpty]: Start isEmpty. Operand 2535 states and 3594 transitions. [2021-10-21 19:11:24,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-10-21 19:11:24,444 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:24,444 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:24,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 19:11:24,445 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:11:24,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:24,446 INFO L82 PathProgramCache]: Analyzing trace with hash -73581847, now seen corresponding path program 1 times [2021-10-21 19:11:24,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:24,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551704416] [2021-10-21 19:11:24,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:24,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:24,746 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-21 19:11:24,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:24,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551704416] [2021-10-21 19:11:24,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551704416] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:24,747 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:24,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:11:24,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936348280] [2021-10-21 19:11:24,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:11:24,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:24,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:11:24,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:11:24,750 INFO L87 Difference]: Start difference. First operand 2535 states and 3594 transitions. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 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) [2021-10-21 19:11:25,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:25,752 INFO L93 Difference]: Finished difference Result 5382 states and 7712 transitions. [2021-10-21 19:11:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:11:25,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 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 198 [2021-10-21 19:11:25,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:25,767 INFO L225 Difference]: With dead ends: 5382 [2021-10-21 19:11:25,767 INFO L226 Difference]: Without dead ends: 2501 [2021-10-21 19:11:25,771 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:11:25,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2021-10-21 19:11:25,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 2501. [2021-10-21 19:11:25,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2501 states, 2500 states have (on average 1.3132) internal successors, (3283), 2500 states have internal predecessors, (3283), 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) [2021-10-21 19:11:25,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2501 states to 2501 states and 3283 transitions. [2021-10-21 19:11:25,835 INFO L78 Accepts]: Start accepts. Automaton has 2501 states and 3283 transitions. Word has length 198 [2021-10-21 19:11:25,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:25,836 INFO L470 AbstractCegarLoop]: Abstraction has 2501 states and 3283 transitions. [2021-10-21 19:11:25,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 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) [2021-10-21 19:11:25,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2501 states and 3283 transitions. [2021-10-21 19:11:25,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-10-21 19:11:25,843 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:25,843 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:25,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 19:11:25,844 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:11:25,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:25,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1371073778, now seen corresponding path program 1 times [2021-10-21 19:11:25,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:25,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823763514] [2021-10-21 19:11:25,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:25,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:25,939 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-21 19:11:25,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:25,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823763514] [2021-10-21 19:11:25,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823763514] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:25,940 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:25,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:11:25,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266131048] [2021-10-21 19:11:25,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:11:25,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:25,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:11:25,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:11:25,946 INFO L87 Difference]: Start difference. First operand 2501 states and 3283 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 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) [2021-10-21 19:11:26,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:26,765 INFO L93 Difference]: Finished difference Result 7437 states and 9760 transitions. [2021-10-21 19:11:26,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:11:26,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 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 200 [2021-10-21 19:11:26,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:26,799 INFO L225 Difference]: With dead ends: 7437 [2021-10-21 19:11:26,799 INFO L226 Difference]: Without dead ends: 4938 [2021-10-21 19:11:26,803 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:11:26,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4938 states. [2021-10-21 19:11:26,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4938 to 4125. [2021-10-21 19:11:26,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 4124 states have (on average 1.2257516973811833) internal successors, (5055), 4124 states have internal predecessors, (5055), 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) [2021-10-21 19:11:26,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 5055 transitions. [2021-10-21 19:11:26,918 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 5055 transitions. Word has length 200 [2021-10-21 19:11:26,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:26,919 INFO L470 AbstractCegarLoop]: Abstraction has 4125 states and 5055 transitions. [2021-10-21 19:11:26,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 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) [2021-10-21 19:11:26,919 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 5055 transitions. [2021-10-21 19:11:26,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-10-21 19:11:26,928 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:26,928 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:26,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-21 19:11:26,929 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:11:26,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:26,929 INFO L82 PathProgramCache]: Analyzing trace with hash 673023940, now seen corresponding path program 1 times [2021-10-21 19:11:26,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:26,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657509696] [2021-10-21 19:11:26,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:26,934 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:27,272 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:27,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:27,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657509696] [2021-10-21 19:11:27,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657509696] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:27,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:27,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:11:27,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739229322] [2021-10-21 19:11:27,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:11:27,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:27,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:11:27,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:11:27,276 INFO L87 Difference]: Start difference. First operand 4125 states and 5055 transitions. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 3 states have internal predecessors, (214), 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) [2021-10-21 19:11:28,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:28,618 INFO L93 Difference]: Finished difference Result 10239 states and 12504 transitions. [2021-10-21 19:11:28,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:11:28,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 3 states have internal predecessors, (214), 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 214 [2021-10-21 19:11:28,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:28,654 INFO L225 Difference]: With dead ends: 10239 [2021-10-21 19:11:28,654 INFO L226 Difference]: Without dead ends: 5768 [2021-10-21 19:11:28,660 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:11:28,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5768 states. [2021-10-21 19:11:28,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5768 to 5767. [2021-10-21 19:11:28,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5767 states, 5766 states have (on average 1.2131460284425946) internal successors, (6995), 5766 states have internal predecessors, (6995), 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) [2021-10-21 19:11:28,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5767 states to 5767 states and 6995 transitions. [2021-10-21 19:11:28,820 INFO L78 Accepts]: Start accepts. Automaton has 5767 states and 6995 transitions. Word has length 214 [2021-10-21 19:11:28,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:28,822 INFO L470 AbstractCegarLoop]: Abstraction has 5767 states and 6995 transitions. [2021-10-21 19:11:28,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 3 states have internal predecessors, (214), 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) [2021-10-21 19:11:28,822 INFO L276 IsEmpty]: Start isEmpty. Operand 5767 states and 6995 transitions. [2021-10-21 19:11:28,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-10-21 19:11:28,836 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:28,836 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:28,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-21 19:11:28,837 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:11:28,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:28,837 INFO L82 PathProgramCache]: Analyzing trace with hash 873129007, now seen corresponding path program 1 times [2021-10-21 19:11:28,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:28,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390430948] [2021-10-21 19:11:28,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:28,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:28,988 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:28,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:28,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390430948] [2021-10-21 19:11:28,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390430948] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:11:28,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056752168] [2021-10-21 19:11:28,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:28,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:28,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:11:28,995 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:11:29,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 19:11:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:29,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:11:29,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:29,959 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-10-21 19:11:29,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056752168] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:29,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:11:29,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-21 19:11:29,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990445322] [2021-10-21 19:11:29,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:11:29,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:29,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:11:29,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:11:29,962 INFO L87 Difference]: Start difference. First operand 5767 states and 6995 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2021-10-21 19:11:30,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:30,806 INFO L93 Difference]: Finished difference Result 11545 states and 14012 transitions. [2021-10-21 19:11:30,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:11:30,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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 221 [2021-10-21 19:11:30,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:30,839 INFO L225 Difference]: With dead ends: 11545 [2021-10-21 19:11:30,839 INFO L226 Difference]: Without dead ends: 5780 [2021-10-21 19:11:30,846 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.0ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:11:30,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5780 states. [2021-10-21 19:11:30,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5780 to 5767. [2021-10-21 19:11:30,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5767 states, 5766 states have (on average 1.2025667707249392) internal successors, (6934), 5766 states have internal predecessors, (6934), 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) [2021-10-21 19:11:30,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5767 states to 5767 states and 6934 transitions. [2021-10-21 19:11:30,981 INFO L78 Accepts]: Start accepts. Automaton has 5767 states and 6934 transitions. Word has length 221 [2021-10-21 19:11:30,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:30,982 INFO L470 AbstractCegarLoop]: Abstraction has 5767 states and 6934 transitions. [2021-10-21 19:11:30,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2021-10-21 19:11:30,982 INFO L276 IsEmpty]: Start isEmpty. Operand 5767 states and 6934 transitions. [2021-10-21 19:11:30,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-10-21 19:11:30,993 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:30,993 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:31,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:11:31,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-10-21 19:11:31,210 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:11:31,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:31,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1329101946, now seen corresponding path program 1 times [2021-10-21 19:11:31,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:31,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068687615] [2021-10-21 19:11:31,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:31,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:31,361 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 55 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-21 19:11:31,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:31,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068687615] [2021-10-21 19:11:31,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068687615] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:11:31,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898597104] [2021-10-21 19:11:31,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:31,368 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:31,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:11:31,370 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:11:31,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 19:11:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:31,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:11:31,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:32,288 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-10-21 19:11:32,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898597104] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:32,301 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:11:32,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-21 19:11:32,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311641346] [2021-10-21 19:11:32,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:11:32,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:32,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:11:32,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:11:32,304 INFO L87 Difference]: Start difference. First operand 5767 states and 6934 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2021-10-21 19:11:33,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:33,152 INFO L93 Difference]: Finished difference Result 17219 states and 20690 transitions. [2021-10-21 19:11:33,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:11:33,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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 233 [2021-10-21 19:11:33,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:33,194 INFO L225 Difference]: With dead ends: 17219 [2021-10-21 19:11:33,194 INFO L226 Difference]: Without dead ends: 11454 [2021-10-21 19:11:33,203 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:11:33,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11454 states. [2021-10-21 19:11:33,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11454 to 11451. [2021-10-21 19:11:33,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11451 states, 11450 states have (on average 1.1317903930131004) internal successors, (12959), 11450 states have internal predecessors, (12959), 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) [2021-10-21 19:11:33,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11451 states to 11451 states and 12959 transitions. [2021-10-21 19:11:33,491 INFO L78 Accepts]: Start accepts. Automaton has 11451 states and 12959 transitions. Word has length 233 [2021-10-21 19:11:33,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:33,492 INFO L470 AbstractCegarLoop]: Abstraction has 11451 states and 12959 transitions. [2021-10-21 19:11:33,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2021-10-21 19:11:33,493 INFO L276 IsEmpty]: Start isEmpty. Operand 11451 states and 12959 transitions. [2021-10-21 19:11:33,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-10-21 19:11:33,513 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:33,514 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:33,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:11:33,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:33,730 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:11:33,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:33,731 INFO L82 PathProgramCache]: Analyzing trace with hash 768090626, now seen corresponding path program 1 times [2021-10-21 19:11:33,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:33,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053348670] [2021-10-21 19:11:33,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:33,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:33,859 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:33,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:33,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053348670] [2021-10-21 19:11:33,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053348670] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:33,860 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:33,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:11:33,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266608306] [2021-10-21 19:11:33,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:11:33,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:33,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:11:33,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:11:33,863 INFO L87 Difference]: Start difference. First operand 11451 states and 12959 transitions. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 2 states have internal predecessors, (246), 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) [2021-10-21 19:11:34,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:34,696 INFO L93 Difference]: Finished difference Result 27399 states and 30903 transitions. [2021-10-21 19:11:34,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:11:34,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 2 states have internal predecessors, (246), 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 246 [2021-10-21 19:11:34,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:34,725 INFO L225 Difference]: With dead ends: 27399 [2021-10-21 19:11:34,726 INFO L226 Difference]: Without dead ends: 15950 [2021-10-21 19:11:34,796 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 [2021-10-21 19:11:34,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15950 states. [2021-10-21 19:11:35,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15950 to 15944. [2021-10-21 19:11:35,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15944 states, 15943 states have (on average 1.1214953271028036) internal successors, (17880), 15943 states have internal predecessors, (17880), 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) [2021-10-21 19:11:35,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15944 states to 15944 states and 17880 transitions. [2021-10-21 19:11:35,085 INFO L78 Accepts]: Start accepts. Automaton has 15944 states and 17880 transitions. Word has length 246 [2021-10-21 19:11:35,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:35,086 INFO L470 AbstractCegarLoop]: Abstraction has 15944 states and 17880 transitions. [2021-10-21 19:11:35,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 2 states have internal predecessors, (246), 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) [2021-10-21 19:11:35,086 INFO L276 IsEmpty]: Start isEmpty. Operand 15944 states and 17880 transitions. [2021-10-21 19:11:35,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-10-21 19:11:35,110 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:35,110 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:35,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-21 19:11:35,111 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:11:35,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:35,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1718686317, now seen corresponding path program 1 times [2021-10-21 19:11:35,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:35,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525090032] [2021-10-21 19:11:35,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:35,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:35,324 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:35,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:35,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525090032] [2021-10-21 19:11:35,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525090032] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:35,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:35,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:11:35,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248029861] [2021-10-21 19:11:35,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:11:35,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:35,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:11:35,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:11:35,328 INFO L87 Difference]: Start difference. First operand 15944 states and 17880 transitions. Second operand has 4 states, 4 states have (on average 63.25) internal successors, (253), 3 states have internal predecessors, (253), 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) [2021-10-21 19:11:36,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:36,681 INFO L93 Difference]: Finished difference Result 43517 states and 48797 transitions. [2021-10-21 19:11:36,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:11:36,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.25) internal successors, (253), 3 states have internal predecessors, (253), 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 253 [2021-10-21 19:11:36,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:36,746 INFO L225 Difference]: With dead ends: 43517 [2021-10-21 19:11:36,746 INFO L226 Difference]: Without dead ends: 27575 [2021-10-21 19:11:36,766 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:11:36,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27575 states. [2021-10-21 19:11:37,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27575 to 27567. [2021-10-21 19:11:37,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27567 states, 27566 states have (on average 1.1042588696219982) internal successors, (30440), 27566 states have internal predecessors, (30440), 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) [2021-10-21 19:11:37,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27567 states to 27567 states and 30440 transitions. [2021-10-21 19:11:37,344 INFO L78 Accepts]: Start accepts. Automaton has 27567 states and 30440 transitions. Word has length 253 [2021-10-21 19:11:37,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:37,345 INFO L470 AbstractCegarLoop]: Abstraction has 27567 states and 30440 transitions. [2021-10-21 19:11:37,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.25) internal successors, (253), 3 states have internal predecessors, (253), 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) [2021-10-21 19:11:37,345 INFO L276 IsEmpty]: Start isEmpty. Operand 27567 states and 30440 transitions. [2021-10-21 19:11:37,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-10-21 19:11:37,448 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:37,449 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:37,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-21 19:11:37,450 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:11:37,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:37,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1369923191, now seen corresponding path program 1 times [2021-10-21 19:11:37,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:37,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233708634] [2021-10-21 19:11:37,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:37,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:37,623 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 107 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:11:37,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:37,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233708634] [2021-10-21 19:11:37,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233708634] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:11:37,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163938983] [2021-10-21 19:11:37,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:37,625 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:37,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:11:37,630 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:11:37,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 19:11:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:38,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:11:38,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:38,925 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-21 19:11:38,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163938983] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:38,926 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:11:38,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-21 19:11:38,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719097135] [2021-10-21 19:11:38,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:11:38,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:38,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:11:38,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:11:38,928 INFO L87 Difference]: Start difference. First operand 27567 states and 30440 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2021-10-21 19:11:39,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:39,936 INFO L93 Difference]: Finished difference Result 57368 states and 63747 transitions. [2021-10-21 19:11:39,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:11:39,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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 [2021-10-21 19:11:39,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:40,008 INFO L225 Difference]: With dead ends: 57368 [2021-10-21 19:11:40,008 INFO L226 Difference]: Without dead ends: 29803 [2021-10-21 19:11:40,029 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.9ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:11:40,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29803 states. [2021-10-21 19:11:40,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29803 to 29800. [2021-10-21 19:11:40,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29800 states, 29799 states have (on average 1.1100372495721333) internal successors, (33078), 29799 states have internal predecessors, (33078), 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) [2021-10-21 19:11:40,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29800 states to 29800 states and 33078 transitions. [2021-10-21 19:11:40,801 INFO L78 Accepts]: Start accepts. Automaton has 29800 states and 33078 transitions. Word has length 291 [2021-10-21 19:11:40,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:40,802 INFO L470 AbstractCegarLoop]: Abstraction has 29800 states and 33078 transitions. [2021-10-21 19:11:40,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2021-10-21 19:11:40,803 INFO L276 IsEmpty]: Start isEmpty. Operand 29800 states and 33078 transitions. [2021-10-21 19:11:40,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-10-21 19:11:40,844 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:40,845 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:40,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:11:41,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:41,059 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:11:41,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:41,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1931701254, now seen corresponding path program 1 times [2021-10-21 19:11:41,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:41,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595446419] [2021-10-21 19:11:41,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:41,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:41,290 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-21 19:11:41,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:41,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595446419] [2021-10-21 19:11:41,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595446419] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:41,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:41,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:11:41,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384002317] [2021-10-21 19:11:41,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:11:41,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:41,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:11:41,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:11:41,296 INFO L87 Difference]: Start difference. First operand 29800 states and 33078 transitions. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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) [2021-10-21 19:11:42,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:42,211 INFO L93 Difference]: Finished difference Result 57733 states and 64107 transitions. [2021-10-21 19:11:42,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:11:42,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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 310 [2021-10-21 19:11:42,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:42,373 INFO L225 Difference]: With dead ends: 57733 [2021-10-21 19:11:42,385 INFO L226 Difference]: Without dead ends: 27934 [2021-10-21 19:11:42,409 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 [2021-10-21 19:11:42,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27934 states. [2021-10-21 19:11:42,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27934 to 27527. [2021-10-21 19:11:42,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27527 states, 27526 states have (on average 1.0890067572476931) internal successors, (29976), 27526 states have internal predecessors, (29976), 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) [2021-10-21 19:11:43,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27527 states to 27527 states and 29976 transitions. [2021-10-21 19:11:43,117 INFO L78 Accepts]: Start accepts. Automaton has 27527 states and 29976 transitions. Word has length 310 [2021-10-21 19:11:43,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:43,117 INFO L470 AbstractCegarLoop]: Abstraction has 27527 states and 29976 transitions. [2021-10-21 19:11:43,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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) [2021-10-21 19:11:43,117 INFO L276 IsEmpty]: Start isEmpty. Operand 27527 states and 29976 transitions. [2021-10-21 19:11:43,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-10-21 19:11:43,202 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:43,203 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:43,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-21 19:11:43,203 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:11:43,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:43,204 INFO L82 PathProgramCache]: Analyzing trace with hash -17613274, now seen corresponding path program 1 times [2021-10-21 19:11:43,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:43,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994854726] [2021-10-21 19:11:43,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:43,205 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:43,398 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 160 proven. 11 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-10-21 19:11:43,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:43,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994854726] [2021-10-21 19:11:43,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994854726] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:11:43,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091312830] [2021-10-21 19:11:43,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:43,400 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:43,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:11:43,401 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:11:43,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-21 19:11:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:44,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:11:44,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:44,884 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-10-21 19:11:44,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091312830] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:44,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:11:44,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-21 19:11:44,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941974254] [2021-10-21 19:11:44,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:11:44,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:44,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:11:44,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:11:44,888 INFO L87 Difference]: Start difference. First operand 27527 states and 29976 transitions. Second operand has 3 states, 3 states have (on average 94.0) 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) [2021-10-21 19:11:45,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:45,862 INFO L93 Difference]: Finished difference Result 75568 states and 82198 transitions. [2021-10-21 19:11:45,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:11:45,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.0) 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 333 [2021-10-21 19:11:45,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:45,919 INFO L225 Difference]: With dead ends: 75568 [2021-10-21 19:11:45,919 INFO L226 Difference]: Without dead ends: 48043 [2021-10-21 19:11:45,941 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.6ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:11:45,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48043 states. [2021-10-21 19:11:46,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48043 to 44792. [2021-10-21 19:11:46,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44792 states, 44791 states have (on average 1.0809984148601282) internal successors, (48419), 44791 states have internal predecessors, (48419), 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) [2021-10-21 19:11:46,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44792 states to 44792 states and 48419 transitions. [2021-10-21 19:11:46,908 INFO L78 Accepts]: Start accepts. Automaton has 44792 states and 48419 transitions. Word has length 333 [2021-10-21 19:11:46,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:46,909 INFO L470 AbstractCegarLoop]: Abstraction has 44792 states and 48419 transitions. [2021-10-21 19:11:46,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) 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) [2021-10-21 19:11:46,909 INFO L276 IsEmpty]: Start isEmpty. Operand 44792 states and 48419 transitions. [2021-10-21 19:11:46,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-10-21 19:11:46,958 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:46,959 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:46,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:11:47,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-21 19:11:47,174 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:11:47,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:47,175 INFO L82 PathProgramCache]: Analyzing trace with hash 703275116, now seen corresponding path program 1 times [2021-10-21 19:11:47,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:47,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984784074] [2021-10-21 19:11:47,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:47,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:47,505 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-10-21 19:11:47,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:47,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984784074] [2021-10-21 19:11:47,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984784074] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:47,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:47,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:11:47,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423817824] [2021-10-21 19:11:47,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:11:47,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:47,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:11:47,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:11:47,509 INFO L87 Difference]: Start difference. First operand 44792 states and 48419 transitions. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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) [2021-10-21 19:11:48,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:48,492 INFO L93 Difference]: Finished difference Result 88548 states and 95689 transitions. [2021-10-21 19:11:48,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:11:48,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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 348 [2021-10-21 19:11:48,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:48,708 INFO L225 Difference]: With dead ends: 88548 [2021-10-21 19:11:48,708 INFO L226 Difference]: Without dead ends: 43758 [2021-10-21 19:11:48,726 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 [2021-10-21 19:11:48,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43758 states. [2021-10-21 19:11:49,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43758 to 42131. [2021-10-21 19:11:49,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42131 states, 42130 states have (on average 1.0627106574887253) internal successors, (44772), 42130 states have internal predecessors, (44772), 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) [2021-10-21 19:11:49,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42131 states to 42131 states and 44772 transitions. [2021-10-21 19:11:49,328 INFO L78 Accepts]: Start accepts. Automaton has 42131 states and 44772 transitions. Word has length 348 [2021-10-21 19:11:49,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:49,329 INFO L470 AbstractCegarLoop]: Abstraction has 42131 states and 44772 transitions. [2021-10-21 19:11:49,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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) [2021-10-21 19:11:49,329 INFO L276 IsEmpty]: Start isEmpty. Operand 42131 states and 44772 transitions. [2021-10-21 19:11:49,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2021-10-21 19:11:49,367 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:49,367 INFO L512 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:49,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-21 19:11:49,368 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:11:49,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:49,369 INFO L82 PathProgramCache]: Analyzing trace with hash 212231778, now seen corresponding path program 1 times [2021-10-21 19:11:49,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:49,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210250058] [2021-10-21 19:11:49,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:49,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:49,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:49,713 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 194 proven. 11 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-10-21 19:11:49,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:49,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210250058] [2021-10-21 19:11:49,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210250058] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:11:49,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906790039] [2021-10-21 19:11:49,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:49,714 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:49,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:11:49,718 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:11:49,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-21 19:11:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:50,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:11:50,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:50,966 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-21 19:11:50,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906790039] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:50,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:11:50,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-21 19:11:50,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022174097] [2021-10-21 19:11:50,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:11:50,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:50,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:11:50,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:11:50,969 INFO L87 Difference]: Start difference. First operand 42131 states and 44772 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) [2021-10-21 19:11:51,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:51,887 INFO L93 Difference]: Finished difference Result 79375 states and 84179 transitions. [2021-10-21 19:11:51,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:11:51,887 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 367 [2021-10-21 19:11:51,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:51,931 INFO L225 Difference]: With dead ends: 79375 [2021-10-21 19:11:51,932 INFO L226 Difference]: Without dead ends: 37246 [2021-10-21 19:11:51,952 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:11:51,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37246 states. [2021-10-21 19:11:52,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37246 to 37242. [2021-10-21 19:11:52,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37242 states, 37241 states have (on average 1.0530866518084907) internal successors, (39218), 37241 states have internal predecessors, (39218), 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) [2021-10-21 19:11:52,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37242 states to 37242 states and 39218 transitions. [2021-10-21 19:11:52,709 INFO L78 Accepts]: Start accepts. Automaton has 37242 states and 39218 transitions. Word has length 367 [2021-10-21 19:11:52,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:52,709 INFO L470 AbstractCegarLoop]: Abstraction has 37242 states and 39218 transitions. [2021-10-21 19:11:52,710 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) [2021-10-21 19:11:52,710 INFO L276 IsEmpty]: Start isEmpty. Operand 37242 states and 39218 transitions. [2021-10-21 19:11:52,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2021-10-21 19:11:52,747 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:52,747 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:52,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:11:52,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-21 19:11:52,951 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:11:52,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:52,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1161269189, now seen corresponding path program 1 times [2021-10-21 19:11:52,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:52,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214480584] [2021-10-21 19:11:52,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:52,952 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:53,135 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 211 proven. 11 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2021-10-21 19:11:53,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:53,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214480584] [2021-10-21 19:11:53,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214480584] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:11:53,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521980547] [2021-10-21 19:11:53,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:53,136 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:53,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:11:53,137 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:11:53,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-21 19:11:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:53,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:11:53,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:11:54,863 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-10-21 19:11:54,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521980547] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:54,864 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:11:54,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-21 19:11:54,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020440118] [2021-10-21 19:11:54,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:11:54,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:54,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:11:54,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:11:54,866 INFO L87 Difference]: Start difference. First operand 37242 states and 39218 transitions. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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) [2021-10-21 19:11:55,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:55,793 INFO L93 Difference]: Finished difference Result 78341 states and 82563 transitions. [2021-10-21 19:11:55,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:11:55,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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 373 [2021-10-21 19:11:55,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:55,835 INFO L225 Difference]: With dead ends: 78341 [2021-10-21 19:11:55,835 INFO L226 Difference]: Without dead ends: 41101 [2021-10-21 19:11:55,849 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.0ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:11:55,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41101 states. [2021-10-21 19:11:56,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41101 to 39475. [2021-10-21 19:11:56,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39475 states, 39474 states have (on average 1.0530982418807315) internal successors, (41570), 39474 states have internal predecessors, (41570), 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) [2021-10-21 19:11:56,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39475 states to 39475 states and 41570 transitions. [2021-10-21 19:11:56,448 INFO L78 Accepts]: Start accepts. Automaton has 39475 states and 41570 transitions. Word has length 373 [2021-10-21 19:11:56,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:56,448 INFO L470 AbstractCegarLoop]: Abstraction has 39475 states and 41570 transitions. [2021-10-21 19:11:56,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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) [2021-10-21 19:11:56,449 INFO L276 IsEmpty]: Start isEmpty. Operand 39475 states and 41570 transitions. [2021-10-21 19:11:56,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2021-10-21 19:11:56,487 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:56,488 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:11:56,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-10-21 19:11:56,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-21 19:11:56,701 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:11:56,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:56,702 INFO L82 PathProgramCache]: Analyzing trace with hash -957708721, now seen corresponding path program 1 times [2021-10-21 19:11:56,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:56,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173352654] [2021-10-21 19:11:56,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:56,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:56,872 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-10-21 19:11:56,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:56,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173352654] [2021-10-21 19:11:56,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173352654] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:11:56,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:11:56,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:11:56,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149299430] [2021-10-21 19:11:56,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:11:56,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:11:56,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:11:56,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:11:56,879 INFO L87 Difference]: Start difference. First operand 39475 states and 41570 transitions. Second operand has 4 states, 4 states have (on average 72.0) internal successors, (288), 3 states have internal predecessors, (288), 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) [2021-10-21 19:11:58,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:58,483 INFO L93 Difference]: Finished difference Result 82413 states and 86828 transitions. [2021-10-21 19:11:58,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:11:58,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.0) internal successors, (288), 3 states have internal predecessors, (288), 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 386 [2021-10-21 19:11:58,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:58,533 INFO L225 Difference]: With dead ends: 82413 [2021-10-21 19:11:58,533 INFO L226 Difference]: Without dead ends: 42940 [2021-10-21 19:11:58,549 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:11:58,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42940 states. [2021-10-21 19:11:59,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42940 to 41102. [2021-10-21 19:11:59,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41102 states, 41101 states have (on average 1.0512882898226321) internal successors, (43209), 41101 states have internal predecessors, (43209), 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) [2021-10-21 19:11:59,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41102 states to 41102 states and 43209 transitions. [2021-10-21 19:11:59,163 INFO L78 Accepts]: Start accepts. Automaton has 41102 states and 43209 transitions. Word has length 386 [2021-10-21 19:11:59,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:59,164 INFO L470 AbstractCegarLoop]: Abstraction has 41102 states and 43209 transitions. [2021-10-21 19:11:59,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.0) internal successors, (288), 3 states have internal predecessors, (288), 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) [2021-10-21 19:11:59,164 INFO L276 IsEmpty]: Start isEmpty. Operand 41102 states and 43209 transitions. [2021-10-21 19:11:59,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2021-10-21 19:11:59,207 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:11:59,208 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 19:11:59,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-21 19:11:59,208 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:11:59,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:11:59,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1130963932, now seen corresponding path program 1 times [2021-10-21 19:11:59,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:11:59,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359737162] [2021-10-21 19:11:59,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:59,210 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:11:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:11:59,659 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 246 proven. 6 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-10-21 19:11:59,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:11:59,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359737162] [2021-10-21 19:11:59,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359737162] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:11:59,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109972153] [2021-10-21 19:11:59,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:11:59,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:59,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:11:59,661 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:11:59,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-21 19:12:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:12:00,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:12:00,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:12:01,426 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-10-21 19:12:01,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109972153] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:12:01,427 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:12:01,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-10-21 19:12:01,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477307595] [2021-10-21 19:12:01,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:12:01,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:12:01,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:12:01,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:12:01,429 INFO L87 Difference]: Start difference. First operand 41102 states and 43209 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 2 states have internal predecessors, (311), 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) [2021-10-21 19:12:01,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:12:01,936 INFO L93 Difference]: Finished difference Result 120864 states and 127120 transitions. [2021-10-21 19:12:01,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:12:01,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 2 states have internal predecessors, (311), 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 414 [2021-10-21 19:12:01,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:12:02,026 INFO L225 Difference]: With dead ends: 120864 [2021-10-21 19:12:02,027 INFO L226 Difference]: Without dead ends: 79764 [2021-10-21 19:12:02,049 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.1ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:12:02,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79764 states. [2021-10-21 19:12:03,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79764 to 79761. [2021-10-21 19:12:03,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79761 states, 79760 states have (on average 1.0519558676028085) internal successors, (83904), 79760 states have internal predecessors, (83904), 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) [2021-10-21 19:12:03,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79761 states to 79761 states and 83904 transitions. [2021-10-21 19:12:03,287 INFO L78 Accepts]: Start accepts. Automaton has 79761 states and 83904 transitions. Word has length 414 [2021-10-21 19:12:03,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:12:03,287 INFO L470 AbstractCegarLoop]: Abstraction has 79761 states and 83904 transitions. [2021-10-21 19:12:03,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 2 states have internal predecessors, (311), 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) [2021-10-21 19:12:03,287 INFO L276 IsEmpty]: Start isEmpty. Operand 79761 states and 83904 transitions. [2021-10-21 19:12:03,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2021-10-21 19:12:03,316 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:12:03,317 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 19:12:03,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:12:03,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:12:03,529 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:12:03,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:12:03,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1845760560, now seen corresponding path program 1 times [2021-10-21 19:12:03,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:12:03,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333793096] [2021-10-21 19:12:03,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:12:03,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:12:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:12:03,755 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 285 proven. 9 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-10-21 19:12:03,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:12:03,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333793096] [2021-10-21 19:12:03,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333793096] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:12:03,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008879867] [2021-10-21 19:12:03,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:12:03,757 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:12:03,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:12:03,758 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:12:03,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-21 19:12:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:12:04,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:12:04,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:12:05,762 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-10-21 19:12:05,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008879867] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:12:05,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:12:05,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-21 19:12:05,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848681830] [2021-10-21 19:12:05,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:12:05,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:12:05,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:12:05,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:12:05,765 INFO L87 Difference]: Start difference. First operand 79761 states and 83904 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2021-10-21 19:12:06,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:12:06,765 INFO L93 Difference]: Finished difference Result 158507 states and 166729 transitions. [2021-10-21 19:12:06,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:12:06,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 [2021-10-21 19:12:06,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:12:06,854 INFO L225 Difference]: With dead ends: 158507 [2021-10-21 19:12:06,854 INFO L226 Difference]: Without dead ends: 78748 [2021-10-21 19:12:06,889 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 261.3ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:12:06,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78748 states. [2021-10-21 19:12:08,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78748 to 78324. [2021-10-21 19:12:08,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78324 states, 78323 states have (on average 1.0505343258046806) internal successors, (82281), 78323 states have internal predecessors, (82281), 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) [2021-10-21 19:12:08,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78324 states to 78324 states and 82281 transitions. [2021-10-21 19:12:08,496 INFO L78 Accepts]: Start accepts. Automaton has 78324 states and 82281 transitions. Word has length 437 [2021-10-21 19:12:08,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:12:08,497 INFO L470 AbstractCegarLoop]: Abstraction has 78324 states and 82281 transitions. [2021-10-21 19:12:08,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2021-10-21 19:12:08,497 INFO L276 IsEmpty]: Start isEmpty. Operand 78324 states and 82281 transitions. [2021-10-21 19:12:08,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2021-10-21 19:12:08,530 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:12:08,530 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:12:08,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:12:08,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:12:08,731 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:12:08,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:12:08,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1981683012, now seen corresponding path program 1 times [2021-10-21 19:12:08,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:12:08,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066633093] [2021-10-21 19:12:08,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:12:08,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:12:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:12:08,934 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 401 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-10-21 19:12:08,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:12:08,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066633093] [2021-10-21 19:12:08,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066633093] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:12:08,935 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:12:08,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:12:08,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759865399] [2021-10-21 19:12:08,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:12:08,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:12:08,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:12:08,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:12:08,937 INFO L87 Difference]: Start difference. First operand 78324 states and 82281 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 2 states have internal predecessors, (312), 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) [2021-10-21 19:12:09,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:12:09,785 INFO L93 Difference]: Finished difference Result 210896 states and 221734 transitions. [2021-10-21 19:12:09,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:12:09,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 2 states have internal predecessors, (312), 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 446 [2021-10-21 19:12:09,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:12:10,377 INFO L225 Difference]: With dead ends: 210896 [2021-10-21 19:12:10,377 INFO L226 Difference]: Without dead ends: 132574 [2021-10-21 19:12:10,414 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 [2021-10-21 19:12:10,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132574 states. [2021-10-21 19:12:12,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132574 to 124454. [2021-10-21 19:12:12,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124454 states, 124453 states have (on average 1.0541569909925836) internal successors, (131193), 124453 states have internal predecessors, (131193), 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) [2021-10-21 19:12:12,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124454 states to 124454 states and 131193 transitions. [2021-10-21 19:12:12,789 INFO L78 Accepts]: Start accepts. Automaton has 124454 states and 131193 transitions. Word has length 446 [2021-10-21 19:12:12,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:12:12,790 INFO L470 AbstractCegarLoop]: Abstraction has 124454 states and 131193 transitions. [2021-10-21 19:12:12,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 2 states have internal predecessors, (312), 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) [2021-10-21 19:12:12,790 INFO L276 IsEmpty]: Start isEmpty. Operand 124454 states and 131193 transitions. [2021-10-21 19:12:12,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2021-10-21 19:12:12,827 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:12:12,827 INFO L512 BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 19:12:12,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-21 19:12:12,827 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:12:12,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:12:12,828 INFO L82 PathProgramCache]: Analyzing trace with hash -676210099, now seen corresponding path program 1 times [2021-10-21 19:12:12,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:12:12,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216638563] [2021-10-21 19:12:12,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:12:12,828 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:12:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:12:12,976 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 147 proven. 6 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-10-21 19:12:12,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:12:12,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216638563] [2021-10-21 19:12:12,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216638563] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:12:12,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447265714] [2021-10-21 19:12:12,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:12:12,978 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:12:12,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:12:12,982 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:12:13,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-21 19:12:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:12:14,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:12:14,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:12:14,948 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 337 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-10-21 19:12:14,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447265714] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:12:14,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:12:14,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-10-21 19:12:14,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151572675] [2021-10-21 19:12:14,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:12:14,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:12:14,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:12:14,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:12:14,952 INFO L87 Difference]: Start difference. First operand 124454 states and 131193 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 2 states have internal predecessors, (324), 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) [2021-10-21 19:12:16,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:12:16,262 INFO L93 Difference]: Finished difference Result 293837 states and 309659 transitions. [2021-10-21 19:12:16,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:12:16,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 2 states have internal predecessors, (324), 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 450 [2021-10-21 19:12:16,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:12:16,473 INFO L225 Difference]: With dead ends: 293837 [2021-10-21 19:12:16,473 INFO L226 Difference]: Without dead ends: 169385 [2021-10-21 19:12:16,518 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.9ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:12:16,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169385 states. [2021-10-21 19:12:19,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169385 to 169383. [2021-10-21 19:12:19,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169383 states, 169382 states have (on average 1.0534944681253027) internal successors, (178443), 169382 states have internal predecessors, (178443), 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) [2021-10-21 19:12:19,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169383 states to 169383 states and 178443 transitions. [2021-10-21 19:12:19,882 INFO L78 Accepts]: Start accepts. Automaton has 169383 states and 178443 transitions. Word has length 450 [2021-10-21 19:12:19,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:12:19,882 INFO L470 AbstractCegarLoop]: Abstraction has 169383 states and 178443 transitions. [2021-10-21 19:12:19,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 2 states have internal predecessors, (324), 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) [2021-10-21 19:12:19,883 INFO L276 IsEmpty]: Start isEmpty. Operand 169383 states and 178443 transitions. [2021-10-21 19:12:19,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2021-10-21 19:12:19,937 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:12:19,937 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-21 19:12:19,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:12:20,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:12:20,138 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:12:20,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:12:20,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1531649112, now seen corresponding path program 1 times [2021-10-21 19:12:20,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:12:20,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140936520] [2021-10-21 19:12:20,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:12:20,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:12:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:12:20,418 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 386 proven. 24 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-10-21 19:12:20,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:12:20,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140936520] [2021-10-21 19:12:20,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140936520] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:12:20,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077194137] [2021-10-21 19:12:20,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:12:20,419 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:12:20,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:12:20,422 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:12:20,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-21 19:12:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:12:21,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:12:21,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:12:22,387 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2021-10-21 19:12:22,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077194137] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:12:22,388 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:12:22,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-21 19:12:22,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771130371] [2021-10-21 19:12:22,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:12:22,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:12:22,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:12:22,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:12:22,389 INFO L87 Difference]: Start difference. First operand 169383 states and 178443 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2021-10-21 19:12:24,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:12:24,230 INFO L93 Difference]: Finished difference Result 360764 states and 380396 transitions. [2021-10-21 19:12:24,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:12:24,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 450 [2021-10-21 19:12:24,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:12:24,231 INFO L225 Difference]: With dead ends: 360764 [2021-10-21 19:12:24,231 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:12:24,310 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 13.0ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:12:24,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:12:24,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:12:24,310 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) [2021-10-21 19:12:24,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:12:24,310 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 450 [2021-10-21 19:12:24,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:12:24,311 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:12:24,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2021-10-21 19:12:24,311 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:12:24,311 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:12:24,313 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:12:24,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:12:24,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-10-21 19:12:24,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:12:24,523 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:12:24,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:12:28,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:12:34,894 INFO L857 garLoopResultBuilder]: For program point L1621(line 1621) no Hoare annotation was computed. [2021-10-21 19:12:34,895 INFO L857 garLoopResultBuilder]: For program point L1555(line 1555) no Hoare annotation was computed. [2021-10-21 19:12:34,895 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,895 INFO L857 garLoopResultBuilder]: For program point L1489(line 1489) no Hoare annotation was computed. [2021-10-21 19:12:34,895 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,895 INFO L857 garLoopResultBuilder]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,895 INFO L857 garLoopResultBuilder]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,895 INFO L857 garLoopResultBuilder]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,895 INFO L857 garLoopResultBuilder]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,895 INFO L857 garLoopResultBuilder]: For program point L1623-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,895 INFO L857 garLoopResultBuilder]: For program point L1557-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,895 INFO L857 garLoopResultBuilder]: For program point L1491-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,895 INFO L857 garLoopResultBuilder]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,896 INFO L857 garLoopResultBuilder]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,896 INFO L857 garLoopResultBuilder]: For program point L1624(line 1624) no Hoare annotation was computed. [2021-10-21 19:12:34,896 INFO L857 garLoopResultBuilder]: For program point L1558(line 1558) no Hoare annotation was computed. [2021-10-21 19:12:34,896 INFO L857 garLoopResultBuilder]: For program point L1492(line 1492) no Hoare annotation was computed. [2021-10-21 19:12:34,896 INFO L857 garLoopResultBuilder]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,896 INFO L857 garLoopResultBuilder]: For program point L1294(lines 1294 1313) no Hoare annotation was computed. [2021-10-21 19:12:34,896 INFO L857 garLoopResultBuilder]: For program point L1294-2(lines 1294 1313) no Hoare annotation was computed. [2021-10-21 19:12:34,896 INFO L857 garLoopResultBuilder]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,896 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,897 INFO L857 garLoopResultBuilder]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,897 INFO L857 garLoopResultBuilder]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,897 INFO L857 garLoopResultBuilder]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,897 INFO L857 garLoopResultBuilder]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,897 INFO L857 garLoopResultBuilder]: For program point L1626-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,897 INFO L857 garLoopResultBuilder]: For program point L1560-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,897 INFO L857 garLoopResultBuilder]: For program point L1494-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,898 INFO L857 garLoopResultBuilder]: For program point L1627(line 1627) no Hoare annotation was computed. [2021-10-21 19:12:34,898 INFO L857 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2021-10-21 19:12:34,898 INFO L857 garLoopResultBuilder]: For program point L1495(line 1495) no Hoare annotation was computed. [2021-10-21 19:12:34,898 INFO L857 garLoopResultBuilder]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,898 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,898 INFO L857 garLoopResultBuilder]: For program point L1629-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,898 INFO L857 garLoopResultBuilder]: For program point L1563-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,899 INFO L857 garLoopResultBuilder]: For program point L1497-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,899 INFO L857 garLoopResultBuilder]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,899 INFO L857 garLoopResultBuilder]: For program point L1630(line 1630) no Hoare annotation was computed. [2021-10-21 19:12:34,899 INFO L857 garLoopResultBuilder]: For program point L1564(line 1564) no Hoare annotation was computed. [2021-10-21 19:12:34,899 INFO L857 garLoopResultBuilder]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,899 INFO L857 garLoopResultBuilder]: For program point L1498(line 1498) no Hoare annotation was computed. [2021-10-21 19:12:34,900 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,900 INFO L857 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2021-10-21 19:12:34,900 INFO L857 garLoopResultBuilder]: For program point L508-2(lines 508 521) no Hoare annotation was computed. [2021-10-21 19:12:34,900 INFO L857 garLoopResultBuilder]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,900 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,900 INFO L857 garLoopResultBuilder]: For program point L1632-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,900 INFO L857 garLoopResultBuilder]: For program point L1566-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,901 INFO L857 garLoopResultBuilder]: For program point L1500-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,901 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,901 INFO L857 garLoopResultBuilder]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,901 INFO L857 garLoopResultBuilder]: For program point L1633(line 1633) no Hoare annotation was computed. [2021-10-21 19:12:34,901 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,901 INFO L857 garLoopResultBuilder]: For program point L1567(line 1567) no Hoare annotation was computed. [2021-10-21 19:12:34,902 INFO L857 garLoopResultBuilder]: For program point L1501(line 1501) no Hoare annotation was computed. [2021-10-21 19:12:34,902 INFO L857 garLoopResultBuilder]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,902 INFO L857 garLoopResultBuilder]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,902 INFO L857 garLoopResultBuilder]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,902 INFO L857 garLoopResultBuilder]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,902 INFO L857 garLoopResultBuilder]: For program point L1370(lines 1370 1389) no Hoare annotation was computed. [2021-10-21 19:12:34,903 INFO L857 garLoopResultBuilder]: For program point L1370-2(lines 1370 1389) no Hoare annotation was computed. [2021-10-21 19:12:34,903 INFO L857 garLoopResultBuilder]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,903 INFO L857 garLoopResultBuilder]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,903 INFO L857 garLoopResultBuilder]: For program point L1635-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,903 INFO L857 garLoopResultBuilder]: For program point L1569-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,903 INFO L857 garLoopResultBuilder]: For program point L1503-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,903 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,904 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,904 INFO L857 garLoopResultBuilder]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,904 INFO L857 garLoopResultBuilder]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,904 INFO L857 garLoopResultBuilder]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,904 INFO L857 garLoopResultBuilder]: For program point L1636(line 1636) no Hoare annotation was computed. [2021-10-21 19:12:34,904 INFO L857 garLoopResultBuilder]: For program point L1570(line 1570) no Hoare annotation was computed. [2021-10-21 19:12:34,904 INFO L857 garLoopResultBuilder]: For program point L1504(line 1504) no Hoare annotation was computed. [2021-10-21 19:12:34,905 INFO L857 garLoopResultBuilder]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,905 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,905 INFO L857 garLoopResultBuilder]: For program point L1638-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,905 INFO L857 garLoopResultBuilder]: For program point L1572-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,905 INFO L857 garLoopResultBuilder]: For program point L1506-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,905 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,905 INFO L857 garLoopResultBuilder]: For program point L1639(line 1639) no Hoare annotation was computed. [2021-10-21 19:12:34,905 INFO L857 garLoopResultBuilder]: For program point L1573(line 1573) no Hoare annotation was computed. [2021-10-21 19:12:34,906 INFO L857 garLoopResultBuilder]: For program point L1507(line 1507) no Hoare annotation was computed. [2021-10-21 19:12:34,906 INFO L857 garLoopResultBuilder]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,906 INFO L857 garLoopResultBuilder]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,906 INFO L857 garLoopResultBuilder]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,906 INFO L857 garLoopResultBuilder]: For program point L1641-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,906 INFO L857 garLoopResultBuilder]: For program point L1575-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,906 INFO L857 garLoopResultBuilder]: For program point L1509-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,906 INFO L857 garLoopResultBuilder]: For program point L1642(line 1642) no Hoare annotation was computed. [2021-10-21 19:12:34,906 INFO L857 garLoopResultBuilder]: For program point L1576(line 1576) no Hoare annotation was computed. [2021-10-21 19:12:34,906 INFO L857 garLoopResultBuilder]: For program point L1510(line 1510) no Hoare annotation was computed. [2021-10-21 19:12:34,906 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,906 INFO L857 garLoopResultBuilder]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,906 INFO L857 garLoopResultBuilder]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,906 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 405) no Hoare annotation was computed. [2021-10-21 19:12:34,907 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,907 INFO L857 garLoopResultBuilder]: For program point L388-2(lines 388 405) no Hoare annotation was computed. [2021-10-21 19:12:34,907 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:12:34,907 INFO L857 garLoopResultBuilder]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,907 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,907 INFO L857 garLoopResultBuilder]: For program point L1049(lines 1049 1069) no Hoare annotation was computed. [2021-10-21 19:12:34,907 INFO L857 garLoopResultBuilder]: For program point L1049-2(lines 1049 1069) no Hoare annotation was computed. [2021-10-21 19:12:34,907 INFO L857 garLoopResultBuilder]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,907 INFO L857 garLoopResultBuilder]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,907 INFO L857 garLoopResultBuilder]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,907 INFO L857 garLoopResultBuilder]: For program point L1644-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,907 INFO L857 garLoopResultBuilder]: For program point L1578-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,907 INFO L857 garLoopResultBuilder]: For program point L1512-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,907 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,908 INFO L857 garLoopResultBuilder]: For program point L720(lines 720 741) no Hoare annotation was computed. [2021-10-21 19:12:34,908 INFO L857 garLoopResultBuilder]: For program point L720-2(lines 720 741) no Hoare annotation was computed. [2021-10-21 19:12:34,908 INFO L857 garLoopResultBuilder]: For program point L1645(line 1645) no Hoare annotation was computed. [2021-10-21 19:12:34,908 INFO L857 garLoopResultBuilder]: For program point L1579(line 1579) no Hoare annotation was computed. [2021-10-21 19:12:34,908 INFO L857 garLoopResultBuilder]: For program point L1513(line 1513) no Hoare annotation was computed. [2021-10-21 19:12:34,908 INFO L857 garLoopResultBuilder]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,908 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,908 INFO L857 garLoopResultBuilder]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,908 INFO L857 garLoopResultBuilder]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,908 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,908 INFO L857 garLoopResultBuilder]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,908 INFO L857 garLoopResultBuilder]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,908 INFO L857 garLoopResultBuilder]: For program point L1647-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,909 INFO L857 garLoopResultBuilder]: For program point L1581-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,909 INFO L857 garLoopResultBuilder]: For program point L1515-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,909 INFO L857 garLoopResultBuilder]: For program point L1648(line 1648) no Hoare annotation was computed. [2021-10-21 19:12:34,909 INFO L857 garLoopResultBuilder]: For program point L1582(line 1582) no Hoare annotation was computed. [2021-10-21 19:12:34,909 INFO L857 garLoopResultBuilder]: For program point L1516(line 1516) no Hoare annotation was computed. [2021-10-21 19:12:34,909 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,909 INFO L857 garLoopResultBuilder]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,909 INFO L857 garLoopResultBuilder]: For program point L1650-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,909 INFO L857 garLoopResultBuilder]: For program point L1584-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,909 INFO L857 garLoopResultBuilder]: For program point L1518-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,909 INFO L857 garLoopResultBuilder]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,909 INFO L857 garLoopResultBuilder]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,909 INFO L857 garLoopResultBuilder]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,909 INFO L857 garLoopResultBuilder]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,910 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:12:34,910 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1594) no Hoare annotation was computed. [2021-10-21 19:12:34,910 INFO L857 garLoopResultBuilder]: For program point L1651(line 1651) no Hoare annotation was computed. [2021-10-21 19:12:34,910 INFO L857 garLoopResultBuilder]: For program point L1585(line 1585) no Hoare annotation was computed. [2021-10-21 19:12:34,910 INFO L857 garLoopResultBuilder]: For program point L1519(line 1519) no Hoare annotation was computed. [2021-10-21 19:12:34,910 INFO L857 garLoopResultBuilder]: For program point L66(lines 66 81) no Hoare annotation was computed. [2021-10-21 19:12:34,910 INFO L857 garLoopResultBuilder]: For program point L66-2(lines 66 81) no Hoare annotation was computed. [2021-10-21 19:12:34,910 INFO L857 garLoopResultBuilder]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,910 INFO L857 garLoopResultBuilder]: For program point L1653-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,910 INFO L857 garLoopResultBuilder]: For program point L1587-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,910 INFO L857 garLoopResultBuilder]: For program point L1521-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,910 INFO L857 garLoopResultBuilder]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,910 INFO L857 garLoopResultBuilder]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,910 INFO L857 garLoopResultBuilder]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,911 INFO L857 garLoopResultBuilder]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,911 INFO L857 garLoopResultBuilder]: For program point L1654(line 1654) no Hoare annotation was computed. [2021-10-21 19:12:34,911 INFO L857 garLoopResultBuilder]: For program point L1588(line 1588) no Hoare annotation was computed. [2021-10-21 19:12:34,911 INFO L857 garLoopResultBuilder]: For program point L1522(line 1522) no Hoare annotation was computed. [2021-10-21 19:12:34,911 INFO L857 garLoopResultBuilder]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,911 INFO L857 garLoopResultBuilder]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,911 INFO L857 garLoopResultBuilder]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,911 INFO L857 garLoopResultBuilder]: For program point L928(lines 928 945) no Hoare annotation was computed. [2021-10-21 19:12:34,911 INFO L857 garLoopResultBuilder]: For program point L928-2(lines 928 945) no Hoare annotation was computed. [2021-10-21 19:12:34,911 INFO L857 garLoopResultBuilder]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,911 INFO L857 garLoopResultBuilder]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,911 INFO L857 garLoopResultBuilder]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,911 INFO L857 garLoopResultBuilder]: For program point L202(lines 202 221) no Hoare annotation was computed. [2021-10-21 19:12:34,911 INFO L857 garLoopResultBuilder]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,912 INFO L857 garLoopResultBuilder]: For program point L202-2(lines 202 221) no Hoare annotation was computed. [2021-10-21 19:12:34,912 INFO L857 garLoopResultBuilder]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,912 INFO L857 garLoopResultBuilder]: For program point L1656-1(lines 1656 1658) no Hoare annotation was computed. [2021-10-21 19:12:34,912 INFO L857 garLoopResultBuilder]: For program point L1590-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,912 INFO L857 garLoopResultBuilder]: For program point L1524-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,912 INFO L857 garLoopResultBuilder]: For program point L1392(lines 1392 1410) no Hoare annotation was computed. [2021-10-21 19:12:34,912 INFO L857 garLoopResultBuilder]: For program point L1392-2(lines 1392 1410) no Hoare annotation was computed. [2021-10-21 19:12:34,912 INFO L857 garLoopResultBuilder]: For program point L1260(lines 1260 1282) no Hoare annotation was computed. [2021-10-21 19:12:34,912 INFO L857 garLoopResultBuilder]: For program point L1260-2(lines 1260 1282) no Hoare annotation was computed. [2021-10-21 19:12:34,912 INFO L857 garLoopResultBuilder]: For program point L1657(line 1657) no Hoare annotation was computed. [2021-10-21 19:12:34,912 INFO L857 garLoopResultBuilder]: For program point L1591(line 1591) no Hoare annotation was computed. [2021-10-21 19:12:34,912 INFO L857 garLoopResultBuilder]: For program point L1525(line 1525) no Hoare annotation was computed. [2021-10-21 19:12:34,912 INFO L857 garLoopResultBuilder]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,912 INFO L857 garLoopResultBuilder]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,913 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,913 INFO L853 garLoopResultBuilder]: At program point L1659(lines 64 1660) the Hoare annotation is: (let ((.cse15 (<= ~a7~0 0)) (.cse10 (= ~a4~0 1)) (.cse6 (= ~a0~0 1)) (.cse14 (<= ~a3~0 1)) (.cse16 (= ~a12~0 ~a11~0)) (.cse5 (= ~a27~0 1)) (.cse8 (= ~a12~0 1)) (.cse12 (<= ~a3~0 0)) (.cse9 (= ~a11~0 0)) (.cse13 (<= ~a6~0 0)) (.cse0 (= ~a26~0 1)) (.cse1 (= ~a5~0 1)) (.cse17 (<= 2 ~a3~0)) (.cse2 (= ~a11~0 1)) (.cse3 (= ~a6~0 1)) (.cse4 (= ~a12~0 0)) (.cse7 (= ~a18~0 1)) (.cse11 (<= ~a27~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse1 .cse8 .cse9 .cse3 .cse10 .cse6 .cse7 .cse11) (and .cse1 .cse12 .cse9 .cse3 .cse4 .cse6 .cse7 .cse11) (and .cse0 .cse1 .cse8 .cse9 .cse5 .cse6 .cse7 .cse13) (and .cse0 .cse1 .cse14 .cse9 .cse10 .cse4 .cse7 .cse11 .cse13) (and .cse15 .cse1 .cse8 .cse12 .cse9 .cse3 .cse6 .cse7 .cse11) (and .cse0 .cse1 .cse8 .cse12 .cse9 .cse5 .cse7 .cse13) (and .cse0 .cse1 .cse8 .cse9 .cse3 .cse10 .cse5 .cse7) (and .cse0 .cse1 .cse9 .cse3 .cse4 .cse7 .cse11) (and .cse1 .cse14 .cse16 .cse2 .cse3 .cse7 .cse11) (and .cse1 .cse8 .cse17 .cse9 .cse3 .cse10 .cse5 .cse7) (and .cse1 .cse8 .cse17 .cse9 .cse3 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse16 .cse2 .cse10 .cse5 .cse6 .cse7 .cse13) (and .cse15 .cse1 .cse17 .cse16 .cse2 .cse3 .cse10 .cse5 .cse7) (and .cse0 .cse1 .cse12 .cse2 .cse4 .cse6 .cse7 .cse11 .cse13) (and .cse1 .cse17 .cse2 .cse4 .cse7 .cse11 .cse13) (and .cse1 .cse14 .cse16 .cse2 .cse3 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse17 .cse9 .cse4 .cse5 .cse7 .cse13) (and .cse1 .cse9 .cse3 .cse4 .cse5 .cse7) (and .cse0 .cse1 .cse8 .cse12 .cse9 .cse3 .cse7 .cse11) (and .cse1 .cse12 .cse9 .cse10 .cse4 .cse5 .cse7 .cse13) (and .cse1 (not .cse0) .cse12 .cse9 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse12 .cse16 .cse2 .cse7 .cse11 .cse13) (and .cse0 .cse1 .cse8 .cse17 .cse9 .cse7 .cse11 .cse13) (and .cse0 .cse1 .cse8 .cse17 .cse9 .cse3 .cse6 .cse7 .cse11) (and .cse1 .cse2 .cse4 .cse5 .cse6 .cse7 .cse13) (and .cse1 .cse9 .cse4 .cse6 .cse7 .cse11 .cse13) (and .cse0 .cse1 .cse2 .cse4 .cse5 .cse7 .cse13) (and .cse1 .cse17 .cse9 .cse3 .cse4 .cse7 .cse11) (and .cse0 .cse1 .cse17 .cse16 .cse2 .cse5 .cse6 .cse7 .cse13) (and .cse0 .cse1 .cse8 .cse9 .cse3 .cse10 .cse7 .cse11) (and .cse1 .cse12 .cse2 .cse10 .cse4 .cse5 .cse7 .cse13) (and .cse0 .cse1 .cse8 .cse17 .cse2 .cse6 .cse7 .cse11 .cse13) (and .cse0 .cse1 .cse14 .cse2 .cse3 .cse4 .cse5 .cse7) (and .cse1 .cse8 .cse17 .cse9 .cse5 .cse6 .cse7 .cse13) (and .cse1 .cse12 .cse2 .cse3 .cse4 .cse5 .cse7) (and .cse0 .cse1 .cse8 .cse12 .cse9 .cse3 .cse5 .cse7) (and .cse0 .cse1 .cse8 .cse2 .cse3 .cse5 .cse6 .cse7) (and .cse1 .cse12 .cse9 .cse3 .cse10 .cse4 .cse7 .cse11) (and .cse0 .cse1 .cse14 .cse16 .cse2 .cse3 .cse5 .cse7) (and .cse1 .cse9 .cse4 .cse5 .cse6 .cse7 .cse13) (and .cse0 .cse1 .cse8 .cse17 .cse2 .cse10 .cse5 .cse7 .cse13) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse6 .cse7 .cse11) (and .cse1 .cse12 .cse2 .cse3 .cse4 .cse7 .cse11) (and .cse0 .cse1 .cse16 .cse2 .cse10 .cse7 .cse11 .cse13) (and .cse0 .cse1 .cse2 .cse10 .cse4 .cse6 .cse7 .cse11 .cse13) (and .cse1 .cse14 .cse2 .cse4 .cse5 (= ~a12~0 ~a19~0) .cse7 .cse13) (and .cse0 .cse1 .cse12 .cse16 .cse2 .cse5 .cse7 .cse13) (and .cse1 .cse8 .cse12 .cse9 .cse7 .cse11 .cse13) (and .cse0 .cse1 .cse17 .cse2 .cse3 .cse4 .cse7 .cse11))) [2021-10-21 19:12:34,913 INFO L857 garLoopResultBuilder]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,914 INFO L857 garLoopResultBuilder]: For program point L1593-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,914 INFO L857 garLoopResultBuilder]: For program point L1527-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,914 INFO L857 garLoopResultBuilder]: For program point L1594(line 1594) no Hoare annotation was computed. [2021-10-21 19:12:34,914 INFO L857 garLoopResultBuilder]: For program point L1528(line 1528) no Hoare annotation was computed. [2021-10-21 19:12:34,914 INFO L857 garLoopResultBuilder]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,914 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,914 INFO L857 garLoopResultBuilder]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,914 INFO L860 garLoopResultBuilder]: At program point L1662(lines 1662 1679) the Hoare annotation is: true [2021-10-21 19:12:34,915 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,915 INFO L857 garLoopResultBuilder]: For program point L1596-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,915 INFO L857 garLoopResultBuilder]: For program point L1530-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,915 INFO L857 garLoopResultBuilder]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,915 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,915 INFO L857 garLoopResultBuilder]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,915 INFO L857 garLoopResultBuilder]: For program point L1597(line 1597) no Hoare annotation was computed. [2021-10-21 19:12:34,915 INFO L857 garLoopResultBuilder]: For program point L1531(line 1531) no Hoare annotation was computed. [2021-10-21 19:12:34,915 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,915 INFO L857 garLoopResultBuilder]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,915 INFO L857 garLoopResultBuilder]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,915 INFO L857 garLoopResultBuilder]: For program point L1599-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,915 INFO L857 garLoopResultBuilder]: For program point L1533-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,915 INFO L857 garLoopResultBuilder]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,916 INFO L857 garLoopResultBuilder]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,916 INFO L857 garLoopResultBuilder]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,916 INFO L857 garLoopResultBuilder]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,916 INFO L857 garLoopResultBuilder]: For program point L1600(line 1600) no Hoare annotation was computed. [2021-10-21 19:12:34,916 INFO L857 garLoopResultBuilder]: For program point L1534(line 1534) no Hoare annotation was computed. [2021-10-21 19:12:34,916 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,916 INFO L857 garLoopResultBuilder]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,916 INFO L857 garLoopResultBuilder]: For program point L478(lines 478 488) no Hoare annotation was computed. [2021-10-21 19:12:34,916 INFO L857 garLoopResultBuilder]: For program point L478-2(lines 478 488) no Hoare annotation was computed. [2021-10-21 19:12:34,916 INFO L857 garLoopResultBuilder]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,916 INFO L853 garLoopResultBuilder]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse15 (<= ~a7~0 0)) (.cse10 (= ~a4~0 1)) (.cse6 (= ~a0~0 1)) (.cse14 (<= ~a3~0 1)) (.cse16 (= ~a12~0 ~a11~0)) (.cse5 (= ~a27~0 1)) (.cse8 (= ~a12~0 1)) (.cse12 (<= ~a3~0 0)) (.cse9 (= ~a11~0 0)) (.cse13 (<= ~a6~0 0)) (.cse0 (= ~a26~0 1)) (.cse1 (= ~a5~0 1)) (.cse17 (<= 2 ~a3~0)) (.cse2 (= ~a11~0 1)) (.cse3 (= ~a6~0 1)) (.cse4 (= ~a12~0 0)) (.cse7 (= ~a18~0 1)) (.cse11 (<= ~a27~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse1 .cse8 .cse9 .cse3 .cse10 .cse6 .cse7 .cse11) (and .cse1 .cse12 .cse9 .cse3 .cse4 .cse6 .cse7 .cse11) (and .cse0 .cse1 .cse8 .cse9 .cse5 .cse6 .cse7 .cse13) (and .cse0 .cse1 .cse14 .cse9 .cse10 .cse4 .cse7 .cse11 .cse13) (and .cse15 .cse1 .cse8 .cse12 .cse9 .cse3 .cse6 .cse7 .cse11) (and .cse0 .cse1 .cse8 .cse12 .cse9 .cse5 .cse7 .cse13) (and .cse0 .cse1 .cse8 .cse9 .cse3 .cse10 .cse5 .cse7) (and .cse0 .cse1 .cse9 .cse3 .cse4 .cse7 .cse11) (and .cse1 .cse14 .cse16 .cse2 .cse3 .cse7 .cse11) (and .cse1 .cse8 .cse17 .cse9 .cse3 .cse10 .cse5 .cse7) (and .cse1 .cse8 .cse17 .cse9 .cse3 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse16 .cse2 .cse10 .cse5 .cse6 .cse7 .cse13) (and .cse15 .cse1 .cse17 .cse16 .cse2 .cse3 .cse10 .cse5 .cse7) (and .cse0 .cse1 .cse12 .cse2 .cse4 .cse6 .cse7 .cse11 .cse13) (and .cse1 .cse17 .cse2 .cse4 .cse7 .cse11 .cse13) (and .cse1 .cse14 .cse16 .cse2 .cse3 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse17 .cse9 .cse4 .cse5 .cse7 .cse13) (and .cse1 .cse9 .cse3 .cse4 .cse5 .cse7) (and .cse0 .cse1 .cse8 .cse12 .cse9 .cse3 .cse7 .cse11) (and .cse1 .cse12 .cse9 .cse10 .cse4 .cse5 .cse7 .cse13) (and .cse1 (not .cse0) .cse12 .cse9 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse12 .cse16 .cse2 .cse7 .cse11 .cse13) (and .cse0 .cse1 .cse8 .cse17 .cse9 .cse7 .cse11 .cse13) (and .cse0 .cse1 .cse8 .cse17 .cse9 .cse3 .cse6 .cse7 .cse11) (and .cse1 .cse2 .cse4 .cse5 .cse6 .cse7 .cse13) (and .cse1 .cse9 .cse4 .cse6 .cse7 .cse11 .cse13) (and .cse0 .cse1 .cse2 .cse4 .cse5 .cse7 .cse13) (and .cse1 .cse17 .cse9 .cse3 .cse4 .cse7 .cse11) (and .cse0 .cse1 .cse17 .cse16 .cse2 .cse5 .cse6 .cse7 .cse13) (and .cse0 .cse1 .cse8 .cse9 .cse3 .cse10 .cse7 .cse11) (and .cse1 .cse12 .cse2 .cse10 .cse4 .cse5 .cse7 .cse13) (and .cse0 .cse1 .cse8 .cse17 .cse2 .cse6 .cse7 .cse11 .cse13) (and .cse0 .cse1 .cse14 .cse2 .cse3 .cse4 .cse5 .cse7) (and .cse1 .cse8 .cse17 .cse9 .cse5 .cse6 .cse7 .cse13) (and .cse1 .cse12 .cse2 .cse3 .cse4 .cse5 .cse7) (and .cse0 .cse1 .cse8 .cse12 .cse9 .cse3 .cse5 .cse7) (and .cse0 .cse1 .cse8 .cse2 .cse3 .cse5 .cse6 .cse7) (and .cse1 .cse12 .cse9 .cse3 .cse10 .cse4 .cse7 .cse11) (and .cse0 .cse1 .cse14 .cse16 .cse2 .cse3 .cse5 .cse7) (and .cse1 .cse9 .cse4 .cse5 .cse6 .cse7 .cse13) (and .cse0 .cse1 .cse8 .cse17 .cse2 .cse10 .cse5 .cse7 .cse13) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse6 .cse7 .cse11) (and .cse1 .cse12 .cse2 .cse3 .cse4 .cse7 .cse11) (and .cse0 .cse1 .cse16 .cse2 .cse10 .cse7 .cse11 .cse13) (and .cse0 .cse1 .cse2 .cse10 .cse4 .cse6 .cse7 .cse11 .cse13) (and .cse1 .cse14 .cse2 .cse4 .cse5 (= ~a12~0 ~a19~0) .cse7 .cse13) (and .cse0 .cse1 .cse12 .cse16 .cse2 .cse5 .cse7 .cse13) (and .cse1 .cse8 .cse12 .cse9 .cse7 .cse11 .cse13) (and .cse0 .cse1 .cse17 .cse2 .cse3 .cse4 .cse7 .cse11))) [2021-10-21 19:12:34,917 INFO L857 garLoopResultBuilder]: For program point L1602-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,917 INFO L857 garLoopResultBuilder]: For program point L1536-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,917 INFO L857 garLoopResultBuilder]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,917 INFO L857 garLoopResultBuilder]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,917 INFO L857 garLoopResultBuilder]: For program point L1603(line 1603) no Hoare annotation was computed. [2021-10-21 19:12:34,917 INFO L857 garLoopResultBuilder]: For program point L1537(line 1537) no Hoare annotation was computed. [2021-10-21 19:12:34,917 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,917 INFO L857 garLoopResultBuilder]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,917 INFO L857 garLoopResultBuilder]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,917 INFO L857 garLoopResultBuilder]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,917 INFO L857 garLoopResultBuilder]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,917 INFO L857 garLoopResultBuilder]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,917 INFO L857 garLoopResultBuilder]: For program point L1605-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,917 INFO L857 garLoopResultBuilder]: For program point L1539-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,918 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:12:34,918 INFO L857 garLoopResultBuilder]: For program point L879(lines 879 897) no Hoare annotation was computed. [2021-10-21 19:12:34,918 INFO L857 garLoopResultBuilder]: For program point L879-2(lines 879 897) no Hoare annotation was computed. [2021-10-21 19:12:34,918 INFO L857 garLoopResultBuilder]: For program point L1606(line 1606) no Hoare annotation was computed. [2021-10-21 19:12:34,918 INFO L857 garLoopResultBuilder]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,918 INFO L857 garLoopResultBuilder]: For program point L1540(line 1540) no Hoare annotation was computed. [2021-10-21 19:12:34,918 INFO L857 garLoopResultBuilder]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,918 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,918 INFO L857 garLoopResultBuilder]: For program point L1673(line 1673) no Hoare annotation was computed. [2021-10-21 19:12:34,918 INFO L857 garLoopResultBuilder]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,918 INFO L857 garLoopResultBuilder]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,918 INFO L857 garLoopResultBuilder]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,918 INFO L857 garLoopResultBuilder]: For program point L1608-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,919 INFO L857 garLoopResultBuilder]: For program point L1542-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,919 INFO L857 garLoopResultBuilder]: For program point L1476(lines 1476 1478) no Hoare annotation was computed. [2021-10-21 19:12:34,919 INFO L857 garLoopResultBuilder]: For program point L1476-2(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,919 INFO L857 garLoopResultBuilder]: For program point L1609(line 1609) no Hoare annotation was computed. [2021-10-21 19:12:34,919 INFO L857 garLoopResultBuilder]: For program point L1543(line 1543) no Hoare annotation was computed. [2021-10-21 19:12:34,919 INFO L857 garLoopResultBuilder]: For program point L1477(line 1477) no Hoare annotation was computed. [2021-10-21 19:12:34,919 INFO L857 garLoopResultBuilder]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,920 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,920 INFO L857 garLoopResultBuilder]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,920 INFO L857 garLoopResultBuilder]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,920 INFO L857 garLoopResultBuilder]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,920 INFO L857 garLoopResultBuilder]: For program point L1611-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,920 INFO L857 garLoopResultBuilder]: For program point L1545-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,921 INFO L857 garLoopResultBuilder]: For program point L1479-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,921 INFO L857 garLoopResultBuilder]: For program point L1413(lines 1413 1431) no Hoare annotation was computed. [2021-10-21 19:12:34,921 INFO L857 garLoopResultBuilder]: For program point L1413-2(lines 1413 1431) no Hoare annotation was computed. [2021-10-21 19:12:34,921 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,921 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,921 INFO L857 garLoopResultBuilder]: For program point L1612(line 1612) no Hoare annotation was computed. [2021-10-21 19:12:34,921 INFO L857 garLoopResultBuilder]: For program point L1546(line 1546) no Hoare annotation was computed. [2021-10-21 19:12:34,922 INFO L857 garLoopResultBuilder]: For program point L1480(line 1480) no Hoare annotation was computed. [2021-10-21 19:12:34,922 INFO L857 garLoopResultBuilder]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,922 INFO L857 garLoopResultBuilder]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,922 INFO L857 garLoopResultBuilder]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,922 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,922 INFO L857 garLoopResultBuilder]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,922 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:12:34,923 INFO L857 garLoopResultBuilder]: For program point L1614-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,923 INFO L857 garLoopResultBuilder]: For program point L1548-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,923 INFO L857 garLoopResultBuilder]: For program point L1482-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,923 INFO L857 garLoopResultBuilder]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,923 INFO L857 garLoopResultBuilder]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,923 INFO L857 garLoopResultBuilder]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,923 INFO L857 garLoopResultBuilder]: For program point L1615(line 1615) no Hoare annotation was computed. [2021-10-21 19:12:34,924 INFO L857 garLoopResultBuilder]: For program point L1549(line 1549) no Hoare annotation was computed. [2021-10-21 19:12:34,924 INFO L857 garLoopResultBuilder]: For program point L1483(line 1483) no Hoare annotation was computed. [2021-10-21 19:12:34,924 INFO L857 garLoopResultBuilder]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,924 INFO L857 garLoopResultBuilder]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,924 INFO L857 garLoopResultBuilder]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,924 INFO L857 garLoopResultBuilder]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,924 INFO L857 garLoopResultBuilder]: For program point L1617-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,924 INFO L857 garLoopResultBuilder]: For program point L1551-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,924 INFO L857 garLoopResultBuilder]: For program point L1485-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,924 INFO L857 garLoopResultBuilder]: For program point L1221(lines 1221 1234) no Hoare annotation was computed. [2021-10-21 19:12:34,924 INFO L857 garLoopResultBuilder]: For program point L1221-2(lines 1221 1234) no Hoare annotation was computed. [2021-10-21 19:12:34,924 INFO L857 garLoopResultBuilder]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,924 INFO L857 garLoopResultBuilder]: For program point L1618(line 1618) no Hoare annotation was computed. [2021-10-21 19:12:34,924 INFO L857 garLoopResultBuilder]: For program point L1552(line 1552) no Hoare annotation was computed. [2021-10-21 19:12:34,924 INFO L857 garLoopResultBuilder]: For program point L1486(line 1486) no Hoare annotation was computed. [2021-10-21 19:12:34,925 INFO L857 garLoopResultBuilder]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,925 INFO L857 garLoopResultBuilder]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,925 INFO L857 garLoopResultBuilder]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,925 INFO L857 garLoopResultBuilder]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,925 INFO L857 garLoopResultBuilder]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2021-10-21 19:12:34,925 INFO L857 garLoopResultBuilder]: For program point L695(lines 695 709) no Hoare annotation was computed. [2021-10-21 19:12:34,925 INFO L857 garLoopResultBuilder]: For program point L695-2(lines 695 709) no Hoare annotation was computed. [2021-10-21 19:12:34,925 INFO L857 garLoopResultBuilder]: For program point L1620-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,925 INFO L857 garLoopResultBuilder]: For program point L1554-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,925 INFO L857 garLoopResultBuilder]: For program point L1488-1(lines 64 1660) no Hoare annotation was computed. [2021-10-21 19:12:34,930 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:12:35,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:12:35 BoogieIcfgContainer [2021-10-21 19:12:35,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:12:35,032 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:12:35,032 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:12:35,033 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:12:35,033 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:11:18" (3/4) ... [2021-10-21 19:12:35,036 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:12:35,078 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-21 19:12:35,082 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 19:12:35,086 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:12:35,089 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:12:35,333 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:12:35,333 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:12:35,335 INFO L168 Benchmark]: Toolchain (without parser) took 80030.13 ms. Allocated memory was 115.3 MB in the beginning and 13.2 GB in the end (delta: 13.1 GB). Free memory was 78.8 MB in the beginning and 10.8 GB in the end (delta: -10.7 GB). Peak memory consumption was 3.1 GB. Max. memory is 16.1 GB. [2021-10-21 19:12:35,335 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 115.3 MB. Free memory was 69.4 MB in the beginning and 69.3 MB in the end (delta: 59.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:12:35,336 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1167.72 ms. Allocated memory was 115.3 MB in the beginning and 140.5 MB in the end (delta: 25.2 MB). Free memory was 78.6 MB in the beginning and 91.0 MB in the end (delta: -12.4 MB). Peak memory consumption was 32.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:12:35,337 INFO L168 Benchmark]: Boogie Procedure Inliner took 160.32 ms. Allocated memory is still 140.5 MB. Free memory was 90.3 MB in the beginning and 76.3 MB in the end (delta: 14.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:12:35,337 INFO L168 Benchmark]: Boogie Preprocessor took 211.42 ms. Allocated memory is still 140.5 MB. Free memory was 76.3 MB in the beginning and 95.2 MB in the end (delta: -18.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:12:35,337 INFO L168 Benchmark]: RCFGBuilder took 2095.76 ms. Allocated memory was 140.5 MB in the beginning and 213.9 MB in the end (delta: 73.4 MB). Free memory was 95.2 MB in the beginning and 108.7 MB in the end (delta: -13.5 MB). Peak memory consumption was 65.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:12:35,338 INFO L168 Benchmark]: TraceAbstraction took 76082.07 ms. Allocated memory was 213.9 MB in the beginning and 13.2 GB in the end (delta: 13.0 GB). Free memory was 108.7 MB in the beginning and 10.1 GB in the end (delta: -10.0 GB). Peak memory consumption was 3.1 GB. Max. memory is 16.1 GB. [2021-10-21 19:12:35,338 INFO L168 Benchmark]: Witness Printer took 300.88 ms. Allocated memory is still 13.2 GB. Free memory was 10.1 GB in the beginning and 10.8 GB in the end (delta: -618.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:12:35,340 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 115.3 MB. Free memory was 69.4 MB in the beginning and 69.3 MB in the end (delta: 59.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1167.72 ms. Allocated memory was 115.3 MB in the beginning and 140.5 MB in the end (delta: 25.2 MB). Free memory was 78.6 MB in the beginning and 91.0 MB in the end (delta: -12.4 MB). Peak memory consumption was 32.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 160.32 ms. Allocated memory is still 140.5 MB. Free memory was 90.3 MB in the beginning and 76.3 MB in the end (delta: 14.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 211.42 ms. Allocated memory is still 140.5 MB. Free memory was 76.3 MB in the beginning and 95.2 MB in the end (delta: -18.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2095.76 ms. Allocated memory was 140.5 MB in the beginning and 213.9 MB in the end (delta: 73.4 MB). Free memory was 95.2 MB in the beginning and 108.7 MB in the end (delta: -13.5 MB). Peak memory consumption was 65.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 76082.07 ms. Allocated memory was 213.9 MB in the beginning and 13.2 GB in the end (delta: 13.0 GB). Free memory was 108.7 MB in the beginning and 10.1 GB in the end (delta: -10.0 GB). Peak memory consumption was 3.1 GB. Max. memory is 16.1 GB. * Witness Printer took 300.88 ms. Allocated memory is still 13.2 GB. Free memory was 10.1 GB in the beginning and 10.8 GB in the end (delta: -618.0 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: 1594]: 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, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 75904.6ms, OverallIterations: 23, TraceHistogramMax: 8, EmptinessCheckTime: 729.0ms, AutomataDifference: 26281.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 10380.2ms, InitialAbstractionConstructionTime: 22.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4104 SDtfs, 4410 SDslu, 1022 SDs, 0 SdLazy, 13013 SolverSat, 1963 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13534.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3623 GetRequests, 3574 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 463.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=169383occurred in iteration=22, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 15484.2ms AutomataMinimizationTime, 23 MinimizatonAttempts, 18177 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 1481 NumberOfFragments, 2487 HoareAnnotationTreeSize, 3 FomulaSimplifications, 61856 FormulaSimplificationTreeSizeReduction, 5321.1ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 8212 FormulaSimplificationTreeSizeReductionInter, 5042.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 963.1ms SsaConstructionTime, 2464.4ms SatisfiabilityAnalysisTime, 11832.0ms InterpolantComputationTime, 10498 NumberOfCodeBlocks, 10498 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 10465 ConstructedInterpolants, 0 QuantifiedInterpolants, 31565 SizeOfPredicates, 0 NumberOfNonLiveVariables, 6459 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 33 InterpolantComputations, 23 PerfectInterpolantSequences, 7375/7476 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: 1662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((a26 == 1 && a5 == 1) && a11 == 1) && a6 == 1) && a12 == 0) && a27 == 1) && a0 == 1) && a18 == 1) || (((((((a5 == 1 && a12 == 1) && a11 == 0) && a6 == 1) && a4 == 1) && a0 == 1) && a18 == 1) && a27 <= 0)) || (((((((a5 == 1 && a3 <= 0) && a11 == 0) && a6 == 1) && a12 == 0) && a0 == 1) && a18 == 1) && a27 <= 0)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 0) && a27 == 1) && a0 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a3 <= 1) && a11 == 0) && a4 == 1) && a12 == 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((((a7 <= 0 && a5 == 1) && a12 == 1) && a3 <= 0) && a11 == 0) && a6 == 1) && a0 == 1) && a18 == 1) && a27 <= 0)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a11 == 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 0) && a6 == 1) && a4 == 1) && a27 == 1) && a18 == 1)) || ((((((a26 == 1 && a5 == 1) && a11 == 0) && a6 == 1) && a12 == 0) && a18 == 1) && a27 <= 0)) || ((((((a5 == 1 && a3 <= 1) && a12 == a11) && a11 == 1) && a6 == 1) && a18 == 1) && a27 <= 0)) || (((((((a5 == 1 && a12 == 1) && 2 <= a3) && a11 == 0) && a6 == 1) && a4 == 1) && a27 == 1) && a18 == 1)) || (((((((a5 == 1 && a12 == 1) && 2 <= a3) && a11 == 0) && a6 == 1) && a27 == 1) && a0 == 1) && a18 == 1)) || ((((((((a26 == 1 && a5 == 1) && a12 == a11) && a11 == 1) && a4 == 1) && a27 == 1) && a0 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a7 <= 0 && a5 == 1) && 2 <= a3) && a12 == a11) && a11 == 1) && a6 == 1) && a4 == 1) && a27 == 1) && a18 == 1)) || ((((((((a26 == 1 && a5 == 1) && a3 <= 0) && a11 == 1) && a12 == 0) && a0 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((a5 == 1 && 2 <= a3) && a11 == 1) && a12 == 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a5 == 1 && a3 <= 1) && a12 == a11) && a11 == 1) && a6 == 1) && a27 == 1) && a0 == 1) && a18 == 1)) || (((((((a26 == 1 && a5 == 1) && 2 <= a3) && a11 == 0) && a12 == 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((a5 == 1 && a11 == 0) && a6 == 1) && a12 == 0) && a27 == 1) && a18 == 1)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a11 == 0) && a6 == 1) && a18 == 1) && a27 <= 0)) || (((((((a5 == 1 && a3 <= 0) && a11 == 0) && a4 == 1) && a12 == 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((((a5 == 1 && !(a26 == 1)) && a3 <= 0) && a11 == 0) && a12 == 0) && a27 == 1) && a0 == 1) && a18 == 1)) || (((((((a26 == 1 && a5 == 1) && a3 <= 0) && a12 == a11) && a11 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && a11 == 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && a11 == 0) && a6 == 1) && a0 == 1) && a18 == 1) && a27 <= 0)) || ((((((a5 == 1 && a11 == 1) && a12 == 0) && a27 == 1) && a0 == 1) && a18 == 1) && a6 <= 0)) || ((((((a5 == 1 && a11 == 0) && a12 == 0) && a0 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((a26 == 1 && a5 == 1) && a11 == 1) && a12 == 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((a5 == 1 && 2 <= a3) && a11 == 0) && a6 == 1) && a12 == 0) && a18 == 1) && a27 <= 0)) || ((((((((a26 == 1 && a5 == 1) && 2 <= a3) && a12 == a11) && a11 == 1) && a27 == 1) && a0 == 1) && a18 == 1) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 0) && a6 == 1) && a4 == 1) && a18 == 1) && a27 <= 0)) || (((((((a5 == 1 && a3 <= 0) && a11 == 1) && a4 == 1) && a12 == 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && a11 == 1) && a0 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a3 <= 1) && a11 == 1) && a6 == 1) && a12 == 0) && a27 == 1) && a18 == 1)) || (((((((a5 == 1 && a12 == 1) && 2 <= a3) && a11 == 0) && a27 == 1) && a0 == 1) && a18 == 1) && a6 <= 0)) || ((((((a5 == 1 && a3 <= 0) && a11 == 1) && a6 == 1) && a12 == 0) && a27 == 1) && a18 == 1)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a11 == 0) && a6 == 1) && a27 == 1) && a18 == 1)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 1) && a6 == 1) && a27 == 1) && a0 == 1) && a18 == 1)) || (((((((a5 == 1 && a3 <= 0) && a11 == 0) && a6 == 1) && a4 == 1) && a12 == 0) && a18 == 1) && a27 <= 0)) || (((((((a26 == 1 && a5 == 1) && a3 <= 1) && a12 == a11) && a11 == 1) && a6 == 1) && a27 == 1) && a18 == 1)) || ((((((a5 == 1 && a11 == 0) && a12 == 0) && a27 == 1) && a0 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && a11 == 1) && a4 == 1) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a11 == 1) && a6 == 1) && a12 == 0) && a0 == 1) && a18 == 1) && a27 <= 0)) || ((((((a5 == 1 && a3 <= 0) && a11 == 1) && a6 == 1) && a12 == 0) && a18 == 1) && a27 <= 0)) || (((((((a26 == 1 && a5 == 1) && a12 == a11) && a11 == 1) && a4 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a11 == 1) && a4 == 1) && a12 == 0) && a0 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a5 == 1 && a3 <= 1) && a11 == 1) && a12 == 0) && a27 == 1) && a12 == a19) && a18 == 1) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a3 <= 0) && a12 == a11) && a11 == 1) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((a5 == 1 && a12 == 1) && a3 <= 0) && a11 == 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && 2 <= a3) && a11 == 1) && a6 == 1) && a12 == 0) && a18 == 1) && a27 <= 0) - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((a26 == 1 && a5 == 1) && a11 == 1) && a6 == 1) && a12 == 0) && a27 == 1) && a0 == 1) && a18 == 1) || (((((((a5 == 1 && a12 == 1) && a11 == 0) && a6 == 1) && a4 == 1) && a0 == 1) && a18 == 1) && a27 <= 0)) || (((((((a5 == 1 && a3 <= 0) && a11 == 0) && a6 == 1) && a12 == 0) && a0 == 1) && a18 == 1) && a27 <= 0)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 0) && a27 == 1) && a0 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a3 <= 1) && a11 == 0) && a4 == 1) && a12 == 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((((a7 <= 0 && a5 == 1) && a12 == 1) && a3 <= 0) && a11 == 0) && a6 == 1) && a0 == 1) && a18 == 1) && a27 <= 0)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a11 == 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 0) && a6 == 1) && a4 == 1) && a27 == 1) && a18 == 1)) || ((((((a26 == 1 && a5 == 1) && a11 == 0) && a6 == 1) && a12 == 0) && a18 == 1) && a27 <= 0)) || ((((((a5 == 1 && a3 <= 1) && a12 == a11) && a11 == 1) && a6 == 1) && a18 == 1) && a27 <= 0)) || (((((((a5 == 1 && a12 == 1) && 2 <= a3) && a11 == 0) && a6 == 1) && a4 == 1) && a27 == 1) && a18 == 1)) || (((((((a5 == 1 && a12 == 1) && 2 <= a3) && a11 == 0) && a6 == 1) && a27 == 1) && a0 == 1) && a18 == 1)) || ((((((((a26 == 1 && a5 == 1) && a12 == a11) && a11 == 1) && a4 == 1) && a27 == 1) && a0 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a7 <= 0 && a5 == 1) && 2 <= a3) && a12 == a11) && a11 == 1) && a6 == 1) && a4 == 1) && a27 == 1) && a18 == 1)) || ((((((((a26 == 1 && a5 == 1) && a3 <= 0) && a11 == 1) && a12 == 0) && a0 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((a5 == 1 && 2 <= a3) && a11 == 1) && a12 == 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a5 == 1 && a3 <= 1) && a12 == a11) && a11 == 1) && a6 == 1) && a27 == 1) && a0 == 1) && a18 == 1)) || (((((((a26 == 1 && a5 == 1) && 2 <= a3) && a11 == 0) && a12 == 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((a5 == 1 && a11 == 0) && a6 == 1) && a12 == 0) && a27 == 1) && a18 == 1)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a11 == 0) && a6 == 1) && a18 == 1) && a27 <= 0)) || (((((((a5 == 1 && a3 <= 0) && a11 == 0) && a4 == 1) && a12 == 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((((a5 == 1 && !(a26 == 1)) && a3 <= 0) && a11 == 0) && a12 == 0) && a27 == 1) && a0 == 1) && a18 == 1)) || (((((((a26 == 1 && a5 == 1) && a3 <= 0) && a12 == a11) && a11 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && a11 == 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && a11 == 0) && a6 == 1) && a0 == 1) && a18 == 1) && a27 <= 0)) || ((((((a5 == 1 && a11 == 1) && a12 == 0) && a27 == 1) && a0 == 1) && a18 == 1) && a6 <= 0)) || ((((((a5 == 1 && a11 == 0) && a12 == 0) && a0 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((a26 == 1 && a5 == 1) && a11 == 1) && a12 == 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((a5 == 1 && 2 <= a3) && a11 == 0) && a6 == 1) && a12 == 0) && a18 == 1) && a27 <= 0)) || ((((((((a26 == 1 && a5 == 1) && 2 <= a3) && a12 == a11) && a11 == 1) && a27 == 1) && a0 == 1) && a18 == 1) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 0) && a6 == 1) && a4 == 1) && a18 == 1) && a27 <= 0)) || (((((((a5 == 1 && a3 <= 0) && a11 == 1) && a4 == 1) && a12 == 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && a11 == 1) && a0 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a3 <= 1) && a11 == 1) && a6 == 1) && a12 == 0) && a27 == 1) && a18 == 1)) || (((((((a5 == 1 && a12 == 1) && 2 <= a3) && a11 == 0) && a27 == 1) && a0 == 1) && a18 == 1) && a6 <= 0)) || ((((((a5 == 1 && a3 <= 0) && a11 == 1) && a6 == 1) && a12 == 0) && a27 == 1) && a18 == 1)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a11 == 0) && a6 == 1) && a27 == 1) && a18 == 1)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 1) && a6 == 1) && a27 == 1) && a0 == 1) && a18 == 1)) || (((((((a5 == 1 && a3 <= 0) && a11 == 0) && a6 == 1) && a4 == 1) && a12 == 0) && a18 == 1) && a27 <= 0)) || (((((((a26 == 1 && a5 == 1) && a3 <= 1) && a12 == a11) && a11 == 1) && a6 == 1) && a27 == 1) && a18 == 1)) || ((((((a5 == 1 && a11 == 0) && a12 == 0) && a27 == 1) && a0 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && a11 == 1) && a4 == 1) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a11 == 1) && a6 == 1) && a12 == 0) && a0 == 1) && a18 == 1) && a27 <= 0)) || ((((((a5 == 1 && a3 <= 0) && a11 == 1) && a6 == 1) && a12 == 0) && a18 == 1) && a27 <= 0)) || (((((((a26 == 1 && a5 == 1) && a12 == a11) && a11 == 1) && a4 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a11 == 1) && a4 == 1) && a12 == 0) && a0 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a5 == 1 && a3 <= 1) && a11 == 1) && a12 == 0) && a27 == 1) && a12 == a19) && a18 == 1) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a3 <= 0) && a12 == a11) && a11 == 1) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((a5 == 1 && a12 == 1) && a3 <= 0) && a11 == 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && 2 <= a3) && a11 == 1) && a6 == 1) && a12 == 0) && a18 == 1) && a27 <= 0) RESULT: Ultimate proved your program to be correct! [2021-10-21 19:12:35,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f42a7f26-9587-4b70-b0cc-f292d053f03d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...