./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-pthread/cs_sync.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_sync.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF --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 459cf049271151c452003a0973bcdcc76c918d5759d842702be03de8528f67ef --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:35:45,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:35:45,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:35:45,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:35:45,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:35:45,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:35:45,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:35:45,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:35:45,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:35:45,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:35:45,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:35:45,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:35:45,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:35:45,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:35:45,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:35:45,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:35:45,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:35:45,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:35:45,927 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:35:45,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:35:45,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:35:45,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:35:45,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:35:45,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:35:45,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:35:45,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:35:45,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:35:45,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:35:45,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:35:45,952 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:35:45,952 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:35:45,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:35:45,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:35:45,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:35:45,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:35:45,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:35:45,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:35:45,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:35:45,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:35:45,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:35:45,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:35:45,967 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 06:35:46,002 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:35:46,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:35:46,003 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:35:46,003 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:35:46,004 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:35:46,004 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:35:46,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:35:46,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:35:46,006 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:35:46,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:35:46,006 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:35:46,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:35:46,007 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:35:46,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:35:46,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:35:46,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:35:46,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:35:46,008 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:35:46,008 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:35:46,009 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:35:46,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:35:46,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:35:46,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:35:46,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:35:46,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:35:46,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:35:46,011 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:35:46,011 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:35:46,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:35:46,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:35:46,012 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:35:46,012 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:35:46,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:35:46,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:35:46,013 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_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 459cf049271151c452003a0973bcdcc76c918d5759d842702be03de8528f67ef [2021-11-20 06:35:46,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:35:46,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:35:46,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:35:46,441 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:35:46,442 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:35:46,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/seq-pthread/cs_sync.i [2021-11-20 06:35:46,549 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/data/cc632d681/640ebf74b28b454a885db9173b018286/FLAG375f02556 [2021-11-20 06:35:47,256 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:35:47,257 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/sv-benchmarks/c/seq-pthread/cs_sync.i [2021-11-20 06:35:47,286 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/data/cc632d681/640ebf74b28b454a885db9173b018286/FLAG375f02556 [2021-11-20 06:35:47,487 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/data/cc632d681/640ebf74b28b454a885db9173b018286 [2021-11-20 06:35:47,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:35:47,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:35:47,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:35:47,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:35:47,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:35:47,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:35:47" (1/1) ... [2021-11-20 06:35:47,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@492accad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:47, skipping insertion in model container [2021-11-20 06:35:47,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:35:47" (1/1) ... [2021-11-20 06:35:47,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:35:47,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:35:48,150 WARN L230 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_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/sv-benchmarks/c/seq-pthread/cs_sync.i[34698,34711] [2021-11-20 06:35:48,270 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:35:48,291 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:35:48,389 WARN L230 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_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/sv-benchmarks/c/seq-pthread/cs_sync.i[34698,34711] [2021-11-20 06:35:48,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:35:48,574 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:35:48,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48 WrapperNode [2021-11-20 06:35:48,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:35:48,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:35:48,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:35:48,577 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:35:48,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,646 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,736 INFO L137 Inliner]: procedures = 245, calls = 244, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 544 [2021-11-20 06:35:48,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:35:48,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:35:48,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:35:48,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:35:48,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:35:48,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:35:48,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:35:48,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:35:48,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (1/1) ... [2021-11-20 06:35:48,888 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:35:48,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:35:48,926 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:35:48,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:35:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 06:35:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 06:35:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:35:49,035 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_signal [2021-11-20 06:35:49,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_signal [2021-11-20 06:35:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2021-11-20 06:35:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2021-11-20 06:35:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 06:35:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:35:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 06:35:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2021-11-20 06:35:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2021-11-20 06:35:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:35:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_init [2021-11-20 06:35:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_init [2021-11-20 06:35:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:35:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:35:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:35:49,038 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2021-11-20 06:35:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2021-11-20 06:35:49,038 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_wait [2021-11-20 06:35:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_wait [2021-11-20 06:35:49,038 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2021-11-20 06:35:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2021-11-20 06:35:49,039 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-20 06:35:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2021-11-20 06:35:49,039 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2021-11-20 06:35:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2021-11-20 06:35:49,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:35:49,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:35:49,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:35:49,352 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:35:49,354 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:35:49,864 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !(0 != ~__CS_ret~0 % 256); [2021-11-20 06:35:49,865 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2021-11-20 06:35:49,865 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !(0 != ~__CS_ret~0 % 256); [2021-11-20 06:35:49,866 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2021-11-20 06:35:49,867 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L991: SUMMARY for call __CS_cs(); srcloc: null [2021-11-20 06:35:49,868 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L991-1: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2021-11-20 06:35:49,873 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L991-1: assume !(0 != ~__CS_ret~0 % 256); [2021-11-20 06:35:52,429 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:35:52,444 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:35:52,444 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-20 06:35:52,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:35:52 BoogieIcfgContainer [2021-11-20 06:35:52,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:35:52,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:35:52,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:35:52,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:35:52,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:35:47" (1/3) ... [2021-11-20 06:35:52,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19130a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:35:52, skipping insertion in model container [2021-11-20 06:35:52,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:35:48" (2/3) ... [2021-11-20 06:35:52,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19130a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:35:52, skipping insertion in model container [2021-11-20 06:35:52,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:35:52" (3/3) ... [2021-11-20 06:35:52,469 INFO L111 eAbstractionObserver]: Analyzing ICFG cs_sync.i [2021-11-20 06:35:52,478 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:35:52,478 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:35:52,552 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:35:52,559 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 [2021-11-20 06:35:52,560 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:35:52,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 194 states, 127 states have (on average 1.4566929133858268) internal successors, (185), 128 states have internal predecessors, (185), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2021-11-20 06:35:52,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-20 06:35:52,640 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:35:52,640 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:35:52,641 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:35:52,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:35:52,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1902090431, now seen corresponding path program 1 times [2021-11-20 06:35:52,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:35:52,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803816756] [2021-11-20 06:35:52,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:35:52,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:35:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:53,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:35:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:53,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 06:35:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:53,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 06:35:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:53,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 06:35:53,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:53,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:35:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:53,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:35:53,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:53,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 06:35:53,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:53,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-20 06:35:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:53,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:35:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:53,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 06:35:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:53,377 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-20 06:35:53,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:35:53,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803816756] [2021-11-20 06:35:53,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803816756] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:35:53,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:35:53,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:35:53,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762000738] [2021-11-20 06:35:53,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:35:53,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:35:53,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:35:53,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:35:53,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:35:53,434 INFO L87 Difference]: Start difference. First operand has 194 states, 127 states have (on average 1.4566929133858268) internal successors, (185), 128 states have internal predecessors, (185), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 06:35:53,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:35:53,656 INFO L93 Difference]: Finished difference Result 390 states and 641 transitions. [2021-11-20 06:35:53,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:35:53,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 72 [2021-11-20 06:35:53,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:35:53,701 INFO L225 Difference]: With dead ends: 390 [2021-11-20 06:35:53,701 INFO L226 Difference]: Without dead ends: 194 [2021-11-20 06:35:53,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:35:53,726 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 4 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:35:53,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 568 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:35:53,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-11-20 06:35:53,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 191. [2021-11-20 06:35:53,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 125 states have (on average 1.4) internal successors, (175), 125 states have internal predecessors, (175), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2021-11-20 06:35:53,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 285 transitions. [2021-11-20 06:35:53,836 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 285 transitions. Word has length 72 [2021-11-20 06:35:53,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:35:53,837 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 285 transitions. [2021-11-20 06:35:53,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 06:35:53,837 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 285 transitions. [2021-11-20 06:35:53,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-20 06:35:53,846 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:35:53,846 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:35:53,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:35:53,847 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:35:53,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:35:53,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1569921272, now seen corresponding path program 1 times [2021-11-20 06:35:53,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:35:53,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568588072] [2021-11-20 06:35:53,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:35:53,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:35:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:53,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-20 06:35:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:53,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:35:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:53,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:35:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:53,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-20 06:35:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:53,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 06:35:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:53,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 06:35:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:54,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-20 06:35:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:54,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-20 06:35:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:54,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-20 06:35:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:54,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 06:35:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:54,037 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-20 06:35:54,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:35:54,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568588072] [2021-11-20 06:35:54,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568588072] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:35:54,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:35:54,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:35:54,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178021521] [2021-11-20 06:35:54,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:35:54,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:35:54,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:35:54,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:35:54,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:35:54,043 INFO L87 Difference]: Start difference. First operand 191 states and 285 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 06:35:54,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:35:54,099 INFO L93 Difference]: Finished difference Result 381 states and 570 transitions. [2021-11-20 06:35:54,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:35:54,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 75 [2021-11-20 06:35:54,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:35:54,106 INFO L225 Difference]: With dead ends: 381 [2021-11-20 06:35:54,106 INFO L226 Difference]: Without dead ends: 193 [2021-11-20 06:35:54,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:35:54,111 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 1 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:35:54,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 561 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:35:54,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-11-20 06:35:54,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 192. [2021-11-20 06:35:54,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 126 states have (on average 1.3968253968253967) internal successors, (176), 126 states have internal predecessors, (176), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2021-11-20 06:35:54,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 286 transitions. [2021-11-20 06:35:54,144 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 286 transitions. Word has length 75 [2021-11-20 06:35:54,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:35:54,145 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 286 transitions. [2021-11-20 06:35:54,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 06:35:54,146 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 286 transitions. [2021-11-20 06:35:54,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-20 06:35:54,151 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:35:54,151 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:35:54,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:35:54,178 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:35:54,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:35:54,178 INFO L85 PathProgramCache]: Analyzing trace with hash 217866074, now seen corresponding path program 1 times [2021-11-20 06:35:54,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:35:54,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305401260] [2021-11-20 06:35:54,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:35:54,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:35:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:54,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-20 06:35:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:54,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-20 06:35:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:54,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 06:35:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:54,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-20 06:35:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:54,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-20 06:35:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:54,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-20 06:35:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:54,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 06:35:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:54,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-20 06:35:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:54,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-20 06:35:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:54,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:35:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:54,350 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-20 06:35:54,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:35:54,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305401260] [2021-11-20 06:35:54,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305401260] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:35:54,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487995335] [2021-11-20 06:35:54,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:35:54,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:35:54,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:35:54,386 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:35:54,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:35:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:54,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:35:54,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:35:54,984 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-20 06:35:54,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:35:55,220 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-20 06:35:55,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487995335] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:35:55,222 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:35:55,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-11-20 06:35:55,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476366796] [2021-11-20 06:35:55,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:35:55,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:35:55,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:35:55,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:35:55,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:35:55,236 INFO L87 Difference]: Start difference. First operand 192 states and 286 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-20 06:35:55,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:35:55,344 INFO L93 Difference]: Finished difference Result 385 states and 575 transitions. [2021-11-20 06:35:55,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:35:55,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 77 [2021-11-20 06:35:55,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:35:55,349 INFO L225 Difference]: With dead ends: 385 [2021-11-20 06:35:55,349 INFO L226 Difference]: Without dead ends: 196 [2021-11-20 06:35:55,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 171 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:35:55,367 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 3 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:35:55,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 1119 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:35:55,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-11-20 06:35:55,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2021-11-20 06:35:55,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 130 states have (on average 1.3846153846153846) internal successors, (180), 130 states have internal predecessors, (180), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2021-11-20 06:35:55,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 290 transitions. [2021-11-20 06:35:55,411 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 290 transitions. Word has length 77 [2021-11-20 06:35:55,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:35:55,411 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 290 transitions. [2021-11-20 06:35:55,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-11-20 06:35:55,412 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 290 transitions. [2021-11-20 06:35:55,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-20 06:35:55,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:35:55,417 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:35:55,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:35:55,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:35:55,638 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:35:55,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:35:55,638 INFO L85 PathProgramCache]: Analyzing trace with hash 971561630, now seen corresponding path program 2 times [2021-11-20 06:35:55,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:35:55,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023692095] [2021-11-20 06:35:55,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:35:55,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:35:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:55,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:35:55,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:55,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:35:55,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:55,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-20 06:35:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:55,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 06:35:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:55,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-20 06:35:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:55,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-20 06:35:55,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:55,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-20 06:35:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:55,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-20 06:35:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:55,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-20 06:35:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:55,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-20 06:35:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:55,882 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2021-11-20 06:35:55,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:35:55,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023692095] [2021-11-20 06:35:55,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023692095] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:35:55,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182985723] [2021-11-20 06:35:55,884 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 06:35:55,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:35:55,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:35:55,889 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:35:55,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 06:35:56,082 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-20 06:35:56,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:35:56,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:35:56,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:35:56,403 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-20 06:35:56,403 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:35:56,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182985723] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:35:56,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:35:56,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-20 06:35:56,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538855373] [2021-11-20 06:35:56,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:35:56,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:35:56,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:35:56,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:35:56,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:35:56,414 INFO L87 Difference]: Start difference. First operand 196 states and 290 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 06:35:56,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:35:56,499 INFO L93 Difference]: Finished difference Result 377 states and 570 transitions. [2021-11-20 06:35:56,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:35:56,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 81 [2021-11-20 06:35:56,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:35:56,514 INFO L225 Difference]: With dead ends: 377 [2021-11-20 06:35:56,514 INFO L226 Difference]: Without dead ends: 351 [2021-11-20 06:35:56,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:35:56,523 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 230 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:35:56,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 1057 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:35:56,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-11-20 06:35:56,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 350. [2021-11-20 06:35:56,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 230 states have (on average 1.4130434782608696) internal successors, (325), 230 states have internal predecessors, (325), 99 states have call successors, (99), 20 states have call predecessors, (99), 20 states have return successors, (107), 99 states have call predecessors, (107), 99 states have call successors, (107) [2021-11-20 06:35:56,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 531 transitions. [2021-11-20 06:35:56,603 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 531 transitions. Word has length 81 [2021-11-20 06:35:56,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:35:56,603 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 531 transitions. [2021-11-20 06:35:56,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 06:35:56,604 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 531 transitions. [2021-11-20 06:35:56,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-20 06:35:56,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:35:56,642 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:35:56,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:35:56,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:35:56,865 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:35:56,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:35:56,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1383247446, now seen corresponding path program 1 times [2021-11-20 06:35:56,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:35:56,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199839222] [2021-11-20 06:35:56,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:35:56,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:35:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:35:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:35:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:35:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:35:57,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 06:35:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 06:35:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:35:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:35:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-20 06:35:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:35:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:35:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 06:35:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 06:35:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:35:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:35:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-20 06:35:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-20 06:35:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-11-20 06:35:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-20 06:35:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-20 06:35:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-20 06:35:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-20 06:35:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-20 06:35:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 06:35:57,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 06:35:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,364 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 677 trivial. 0 not checked. [2021-11-20 06:35:57,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:35:57,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199839222] [2021-11-20 06:35:57,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199839222] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:35:57,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141406516] [2021-11-20 06:35:57,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:35:57,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:35:57,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:35:57,369 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:35:57,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 06:35:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:35:57,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:35:57,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:35:58,194 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 677 trivial. 0 not checked. [2021-11-20 06:35:58,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:35:58,685 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 677 trivial. 0 not checked. [2021-11-20 06:35:58,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141406516] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:35:58,686 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:35:58,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 9 [2021-11-20 06:35:58,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108245532] [2021-11-20 06:35:58,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:35:58,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:35:58,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:35:58,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:35:58,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:35:58,690 INFO L87 Difference]: Start difference. First operand 350 states and 531 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (45), 6 states have call predecessors, (45), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-20 06:36:00,812 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:36:01,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:36:02,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:02,967 INFO L93 Difference]: Finished difference Result 719 states and 1092 transitions. [2021-11-20 06:36:02,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:36:02,968 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (45), 6 states have call predecessors, (45), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 183 [2021-11-20 06:36:02,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:02,974 INFO L225 Difference]: With dead ends: 719 [2021-11-20 06:36:02,975 INFO L226 Difference]: Without dead ends: 381 [2021-11-20 06:36:02,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 410 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:36:02,979 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 108 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 175 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:36:02,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 979 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 507 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2021-11-20 06:36:02,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2021-11-20 06:36:03,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 363. [2021-11-20 06:36:03,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 241 states have (on average 1.3983402489626555) internal successors, (337), 243 states have internal predecessors, (337), 99 states have call successors, (99), 20 states have call predecessors, (99), 22 states have return successors, (111), 99 states have call predecessors, (111), 99 states have call successors, (111) [2021-11-20 06:36:03,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 547 transitions. [2021-11-20 06:36:03,025 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 547 transitions. Word has length 183 [2021-11-20 06:36:03,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:03,025 INFO L470 AbstractCegarLoop]: Abstraction has 363 states and 547 transitions. [2021-11-20 06:36:03,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (45), 6 states have call predecessors, (45), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-20 06:36:03,026 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 547 transitions. [2021-11-20 06:36:03,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-20 06:36:03,033 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:03,034 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-20 06:36:03,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:36:03,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:36:03,249 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:03,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:03,250 INFO L85 PathProgramCache]: Analyzing trace with hash -945252521, now seen corresponding path program 2 times [2021-11-20 06:36:03,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:03,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466254275] [2021-11-20 06:36:03,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:03,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:07,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 06:36:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:36:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 06:36:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 06:36:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-20 06:36:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:09,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 06:36:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 06:36:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 06:36:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-20 06:36:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-20 06:36:09,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:36:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-20 06:36:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-20 06:36:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-20 06:36:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-20 06:36:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-20 06:36:09,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-20 06:36:09,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:09,522 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2021-11-20 06:36:09,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:09,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466254275] [2021-11-20 06:36:09,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466254275] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:36:09,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:36:09,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 06:36:09,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766309860] [2021-11-20 06:36:09,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:36:09,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 06:36:09,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:09,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 06:36:09,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:36:09,526 INFO L87 Difference]: Start difference. First operand 363 states and 547 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-20 06:36:11,805 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:36:13,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:13,370 INFO L93 Difference]: Finished difference Result 655 states and 987 transitions. [2021-11-20 06:36:13,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 06:36:13,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 192 [2021-11-20 06:36:13,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:13,377 INFO L225 Difference]: With dead ends: 655 [2021-11-20 06:36:13,381 INFO L226 Difference]: Without dead ends: 384 [2021-11-20 06:36:13,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:36:13,390 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 83 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 127 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:36:13,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 1248 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 815 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-20 06:36:13,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2021-11-20 06:36:13,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 365. [2021-11-20 06:36:13,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 243 states have (on average 1.3950617283950617) internal successors, (339), 245 states have internal predecessors, (339), 99 states have call successors, (99), 20 states have call predecessors, (99), 22 states have return successors, (111), 99 states have call predecessors, (111), 99 states have call successors, (111) [2021-11-20 06:36:13,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 549 transitions. [2021-11-20 06:36:13,435 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 549 transitions. Word has length 192 [2021-11-20 06:36:13,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:13,436 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 549 transitions. [2021-11-20 06:36:13,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-20 06:36:13,437 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 549 transitions. [2021-11-20 06:36:13,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-20 06:36:13,444 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:13,445 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-20 06:36:13,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:36:13,445 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:13,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:13,446 INFO L85 PathProgramCache]: Analyzing trace with hash -38914715, now seen corresponding path program 1 times [2021-11-20 06:36:13,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:13,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700419833] [2021-11-20 06:36:13,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:13,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:36:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:36:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:13,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-20 06:36:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:36:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 06:36:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 06:36:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-20 06:36:13,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 06:36:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 06:36:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-20 06:36:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-20 06:36:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-20 06:36:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-20 06:36:13,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-20 06:36:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 06:36:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-20 06:36:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-20 06:36:13,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-20 06:36:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:13,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 06:36:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:14,000 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-20 06:36:14,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:14,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700419833] [2021-11-20 06:36:14,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700419833] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:36:14,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483811517] [2021-11-20 06:36:14,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:14,002 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:36:14,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:36:14,005 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:36:14,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 06:36:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:14,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:36:14,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:36:14,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-20 06:36:14,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2021-11-20 06:36:14,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-20 06:36:14,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-20 06:36:15,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-20 06:36:15,294 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 400 proven. 6 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2021-11-20 06:36:15,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:36:15,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-20 06:36:16,125 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 899 trivial. 0 not checked. [2021-11-20 06:36:16,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483811517] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:36:16,126 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:36:16,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 5] total 14 [2021-11-20 06:36:16,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112660985] [2021-11-20 06:36:16,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:36:16,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 06:36:16,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:16,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 06:36:16,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:36:16,131 INFO L87 Difference]: Start difference. First operand 365 states and 549 transitions. Second operand has 14 states, 14 states have (on average 9.142857142857142) internal successors, (128), 10 states have internal predecessors, (128), 9 states have call successors, (43), 8 states have call predecessors, (43), 6 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) [2021-11-20 06:36:18,202 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:36:21,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:21,687 INFO L93 Difference]: Finished difference Result 1181 states and 1835 transitions. [2021-11-20 06:36:21,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-20 06:36:21,687 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.142857142857142) internal successors, (128), 10 states have internal predecessors, (128), 9 states have call successors, (43), 8 states have call predecessors, (43), 6 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) Word has length 221 [2021-11-20 06:36:21,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:21,700 INFO L225 Difference]: With dead ends: 1181 [2021-11-20 06:36:21,700 INFO L226 Difference]: Without dead ends: 815 [2021-11-20 06:36:21,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 496 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=186, Invalid=464, Unknown=0, NotChecked=0, Total=650 [2021-11-20 06:36:21,706 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 901 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 1738 mSolverCounterSat, 864 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 2603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 864 IncrementalHoareTripleChecker+Valid, 1738 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:36:21,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [934 Valid, 1252 Invalid, 2603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [864 Valid, 1738 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2021-11-20 06:36:21,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2021-11-20 06:36:21,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 769. [2021-11-20 06:36:21,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 501 states have (on average 1.4111776447105788) internal successors, (707), 507 states have internal predecessors, (707), 219 states have call successors, (219), 39 states have call predecessors, (219), 48 states have return successors, (263), 222 states have call predecessors, (263), 219 states have call successors, (263) [2021-11-20 06:36:21,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1189 transitions. [2021-11-20 06:36:21,823 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1189 transitions. Word has length 221 [2021-11-20 06:36:21,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:21,825 INFO L470 AbstractCegarLoop]: Abstraction has 769 states and 1189 transitions. [2021-11-20 06:36:21,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.142857142857142) internal successors, (128), 10 states have internal predecessors, (128), 9 states have call successors, (43), 8 states have call predecessors, (43), 6 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) [2021-11-20 06:36:21,826 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1189 transitions. [2021-11-20 06:36:21,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-20 06:36:21,835 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:21,835 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-20 06:36:21,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:36:22,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-20 06:36:22,057 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:22,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:22,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1787420621, now seen corresponding path program 1 times [2021-11-20 06:36:22,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:22,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419181553] [2021-11-20 06:36:22,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:22,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:26,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:36:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:36:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-20 06:36:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:36:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 06:36:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 06:36:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-20 06:36:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 06:36:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 06:36:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-20 06:36:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-20 06:36:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-20 06:36:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-20 06:36:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-20 06:36:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 06:36:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-20 06:36:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-20 06:36:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-20 06:36:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 06:36:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:27,257 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 908 trivial. 0 not checked. [2021-11-20 06:36:27,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:27,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419181553] [2021-11-20 06:36:27,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419181553] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:36:27,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:36:27,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 06:36:27,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250755902] [2021-11-20 06:36:27,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:36:27,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 06:36:27,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:27,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 06:36:27,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:36:27,261 INFO L87 Difference]: Start difference. First operand 769 states and 1189 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 06:36:30,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:36:32,916 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:36:35,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:35,279 INFO L93 Difference]: Finished difference Result 1492 states and 2283 transitions. [2021-11-20 06:36:35,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 06:36:35,280 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 221 [2021-11-20 06:36:35,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:35,298 INFO L225 Difference]: With dead ends: 1492 [2021-11-20 06:36:35,298 INFO L226 Difference]: Without dead ends: 1064 [2021-11-20 06:36:35,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2021-11-20 06:36:35,304 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 322 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 252 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:36:35,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 1163 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 1037 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2021-11-20 06:36:35,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2021-11-20 06:36:35,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1014. [2021-11-20 06:36:35,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 659 states have (on average 1.3915022761760243) internal successors, (917), 668 states have internal predecessors, (917), 288 states have call successors, (288), 53 states have call predecessors, (288), 66 states have return successors, (356), 292 states have call predecessors, (356), 288 states have call successors, (356) [2021-11-20 06:36:35,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1561 transitions. [2021-11-20 06:36:35,425 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1561 transitions. Word has length 221 [2021-11-20 06:36:35,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:35,426 INFO L470 AbstractCegarLoop]: Abstraction has 1014 states and 1561 transitions. [2021-11-20 06:36:35,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-20 06:36:35,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1561 transitions. [2021-11-20 06:36:35,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-20 06:36:35,438 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:35,438 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-20 06:36:35,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 06:36:35,439 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:35,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:35,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1294562442, now seen corresponding path program 1 times [2021-11-20 06:36:35,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:35,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272886838] [2021-11-20 06:36:35,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:35,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 06:36:35,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:36:35,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 06:36:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 06:36:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-20 06:36:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 06:36:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 06:36:35,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 06:36:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-20 06:36:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-20 06:36:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:36:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-20 06:36:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-20 06:36:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-20 06:36:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-20 06:36:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-20 06:36:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-20 06:36:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,864 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 717 trivial. 0 not checked. [2021-11-20 06:36:35,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:35,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272886838] [2021-11-20 06:36:35,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272886838] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:36:35,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:36:35,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 06:36:35,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113029666] [2021-11-20 06:36:35,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:36:35,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:36:35,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:35,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:36:35,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:36:35,869 INFO L87 Difference]: Start difference. First operand 1014 states and 1561 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-20 06:36:37,916 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:36:39,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:39,551 INFO L93 Difference]: Finished difference Result 1687 states and 2541 transitions. [2021-11-20 06:36:39,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 06:36:39,552 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 192 [2021-11-20 06:36:39,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:39,567 INFO L225 Difference]: With dead ends: 1687 [2021-11-20 06:36:39,567 INFO L226 Difference]: Without dead ends: 983 [2021-11-20 06:36:39,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-11-20 06:36:39,577 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 388 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 262 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:36:39,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 1134 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 759 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2021-11-20 06:36:39,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2021-11-20 06:36:39,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 929. [2021-11-20 06:36:39,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 610 states have (on average 1.3754098360655738) internal successors, (839), 620 states have internal predecessors, (839), 252 states have call successors, (252), 53 states have call predecessors, (252), 66 states have return successors, (311), 255 states have call predecessors, (311), 252 states have call successors, (311) [2021-11-20 06:36:39,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1402 transitions. [2021-11-20 06:36:39,718 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1402 transitions. Word has length 192 [2021-11-20 06:36:39,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:39,719 INFO L470 AbstractCegarLoop]: Abstraction has 929 states and 1402 transitions. [2021-11-20 06:36:39,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-20 06:36:39,719 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1402 transitions. [2021-11-20 06:36:39,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-20 06:36:39,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:39,730 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-20 06:36:39,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 06:36:39,731 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:39,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:39,731 INFO L85 PathProgramCache]: Analyzing trace with hash -68133052, now seen corresponding path program 1 times [2021-11-20 06:36:39,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:39,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440786323] [2021-11-20 06:36:39,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:39,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:39,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 06:36:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:39,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:36:39,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:39,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:39,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:39,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:39,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 06:36:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:39,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 06:36:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-20 06:36:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 06:36:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 06:36:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-20 06:36:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-20 06:36:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-20 06:36:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 06:36:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-20 06:36:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-20 06:36:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-20 06:36:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-20 06:36:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-20 06:36:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-20 06:36:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:40,119 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 717 trivial. 0 not checked. [2021-11-20 06:36:40,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:40,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440786323] [2021-11-20 06:36:40,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440786323] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:36:40,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:36:40,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 06:36:40,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941488014] [2021-11-20 06:36:40,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:36:40,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:36:40,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:40,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:36:40,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:36:40,123 INFO L87 Difference]: Start difference. First operand 929 states and 1402 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-20 06:36:42,206 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:36:44,373 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:36:46,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:46,047 INFO L93 Difference]: Finished difference Result 1407 states and 2058 transitions. [2021-11-20 06:36:46,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 06:36:46,048 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 192 [2021-11-20 06:36:46,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:46,059 INFO L225 Difference]: With dead ends: 1407 [2021-11-20 06:36:46,059 INFO L226 Difference]: Without dead ends: 737 [2021-11-20 06:36:46,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-11-20 06:36:46,064 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 411 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 328 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:36:46,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [444 Valid, 1030 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 750 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2021-11-20 06:36:46,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-11-20 06:36:46,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 691. [2021-11-20 06:36:46,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 457 states have (on average 1.3807439824945296) internal successors, (631), 463 states have internal predecessors, (631), 183 states have call successors, (183), 41 states have call predecessors, (183), 50 states have return successors, (221), 186 states have call predecessors, (221), 183 states have call successors, (221) [2021-11-20 06:36:46,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1035 transitions. [2021-11-20 06:36:46,139 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1035 transitions. Word has length 192 [2021-11-20 06:36:46,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:46,140 INFO L470 AbstractCegarLoop]: Abstraction has 691 states and 1035 transitions. [2021-11-20 06:36:46,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-20 06:36:46,141 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1035 transitions. [2021-11-20 06:36:46,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-20 06:36:46,149 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:46,149 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-11-20 06:36:46,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 06:36:46,150 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:46,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:46,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1406389691, now seen corresponding path program 1 times [2021-11-20 06:36:46,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:46,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33196211] [2021-11-20 06:36:46,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:46,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 06:36:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:36:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:50,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-20 06:36:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:36:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 06:36:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 06:36:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-20 06:36:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 06:36:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 06:36:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 06:36:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-20 06:36:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 06:36:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 06:36:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 06:36:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-20 06:36:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-20 06:36:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-20 06:36:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 06:36:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-20 06:36:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,396 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2021-11-20 06:36:50,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:50,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33196211] [2021-11-20 06:36:50,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33196211] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:36:50,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497282638] [2021-11-20 06:36:50,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:50,398 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:36:50,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:36:50,401 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:36:50,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 06:36:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:50,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 987 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 06:36:50,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:36:51,381 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 566 trivial. 0 not checked. [2021-11-20 06:36:51,382 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:36:51,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497282638] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:36:51,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:36:51,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2021-11-20 06:36:51,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879404268] [2021-11-20 06:36:51,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:36:51,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:36:51,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:51,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:36:51,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2021-11-20 06:36:51,385 INFO L87 Difference]: Start difference. First operand 691 states and 1035 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 3 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 5 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-20 06:36:52,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:52,452 INFO L93 Difference]: Finished difference Result 1584 states and 2503 transitions. [2021-11-20 06:36:52,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:36:52,453 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 3 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 5 states have call predecessors, (24), 3 states have call successors, (24) Word has length 220 [2021-11-20 06:36:52,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:52,466 INFO L225 Difference]: With dead ends: 1584 [2021-11-20 06:36:52,466 INFO L226 Difference]: Without dead ends: 921 [2021-11-20 06:36:52,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 281 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2021-11-20 06:36:52,474 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 362 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:36:52,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 735 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-20 06:36:52,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-11-20 06:36:52,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 883. [2021-11-20 06:36:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 625 states have (on average 1.2848) internal successors, (803), 545 states have internal predecessors, (803), 193 states have call successors, (193), 42 states have call predecessors, (193), 64 states have return successors, (341), 295 states have call predecessors, (341), 193 states have call successors, (341) [2021-11-20 06:36:52,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1337 transitions. [2021-11-20 06:36:52,569 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1337 transitions. Word has length 220 [2021-11-20 06:36:52,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:52,569 INFO L470 AbstractCegarLoop]: Abstraction has 883 states and 1337 transitions. [2021-11-20 06:36:52,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 3 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (24), 5 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-20 06:36:52,570 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1337 transitions. [2021-11-20 06:36:52,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-20 06:36:52,580 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:52,580 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:36:52,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:36:52,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-20 06:36:52,801 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:52,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:52,802 INFO L85 PathProgramCache]: Analyzing trace with hash -95339261, now seen corresponding path program 1 times [2021-11-20 06:36:52,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:52,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373721787] [2021-11-20 06:36:52,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:52,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 06:36:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:36:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-20 06:36:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:36:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 06:36:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-20 06:36:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-20 06:36:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 06:36:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 06:36:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:36:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:36:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 06:36:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-20 06:36:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-20 06:36:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-20 06:36:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-20 06:36:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-20 06:36:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-20 06:36:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-20 06:36:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-20 06:36:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-20 06:36:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:56,801 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2021-11-20 06:36:56,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:56,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373721787] [2021-11-20 06:36:56,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373721787] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:36:56,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806984409] [2021-11-20 06:36:56,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:56,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:36:56,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:36:56,805 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:36:56,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 06:36:57,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:57,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 977 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-20 06:36:57,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:36:58,049 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 408 proven. 6 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2021-11-20 06:36:58,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:36:59,101 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 21 proven. 18 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2021-11-20 06:36:59,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806984409] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:36:59,101 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:36:59,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 9] total 25 [2021-11-20 06:36:59,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070498625] [2021-11-20 06:36:59,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:36:59,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-20 06:36:59,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:59,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-20 06:36:59,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=502, Unknown=0, NotChecked=0, Total=600 [2021-11-20 06:36:59,105 INFO L87 Difference]: Start difference. First operand 883 states and 1337 transitions. Second operand has 25 states, 25 states have (on average 7.08) internal successors, (177), 21 states have internal predecessors, (177), 11 states have call successors, (54), 9 states have call predecessors, (54), 9 states have return successors, (53), 11 states have call predecessors, (53), 11 states have call successors, (53) [2021-11-20 06:37:01,457 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:37:08,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:08,785 INFO L93 Difference]: Finished difference Result 2438 states and 3684 transitions. [2021-11-20 06:37:08,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-20 06:37:08,786 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.08) internal successors, (177), 21 states have internal predecessors, (177), 11 states have call successors, (54), 9 states have call predecessors, (54), 9 states have return successors, (53), 11 states have call predecessors, (53), 11 states have call successors, (53) Word has length 220 [2021-11-20 06:37:08,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:08,803 INFO L225 Difference]: With dead ends: 2438 [2021-11-20 06:37:08,803 INFO L226 Difference]: Without dead ends: 1645 [2021-11-20 06:37:08,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 506 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=608, Invalid=2932, Unknown=0, NotChecked=0, Total=3540 [2021-11-20 06:37:08,813 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 1540 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 5157 mSolverCounterSat, 1594 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 6752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1594 IncrementalHoareTripleChecker+Valid, 5157 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:08,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1567 Valid, 1764 Invalid, 6752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1594 Valid, 5157 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2021-11-20 06:37:08,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1645 states. [2021-11-20 06:37:08,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1645 to 1377. [2021-11-20 06:37:08,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 964 states have (on average 1.2489626556016598) internal successors, (1204), 895 states have internal predecessors, (1204), 293 states have call successors, (293), 65 states have call predecessors, (293), 119 states have return successors, (559), 416 states have call predecessors, (559), 293 states have call successors, (559) [2021-11-20 06:37:08,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2056 transitions. [2021-11-20 06:37:08,966 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2056 transitions. Word has length 220 [2021-11-20 06:37:08,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:08,967 INFO L470 AbstractCegarLoop]: Abstraction has 1377 states and 2056 transitions. [2021-11-20 06:37:08,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.08) internal successors, (177), 21 states have internal predecessors, (177), 11 states have call successors, (54), 9 states have call predecessors, (54), 9 states have return successors, (53), 11 states have call predecessors, (53), 11 states have call successors, (53) [2021-11-20 06:37:08,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2056 transitions. [2021-11-20 06:37:08,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-20 06:37:08,980 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:08,980 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2021-11-20 06:37:09,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:37:09,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:37:09,205 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:37:09,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:09,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1980069687, now seen corresponding path program 1 times [2021-11-20 06:37:09,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:09,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912135444] [2021-11-20 06:37:09,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:09,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 06:37:13,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:37:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:37:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-20 06:37:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:37:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:37:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 06:37:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-20 06:37:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:37:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 06:37:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:37:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 06:37:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-20 06:37:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:37:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:37:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-20 06:37:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-20 06:37:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-20 06:37:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-20 06:37:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-11-20 06:37:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 06:37:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-20 06:37:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-20 06:37:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-20 06:37:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 06:37:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,292 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-20 06:37:13,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:13,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912135444] [2021-11-20 06:37:13,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912135444] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:37:13,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125914008] [2021-11-20 06:37:13,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:13,294 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:37:13,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:37:13,297 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:37:13,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c0a2b45-bded-4c94-bd66-6161b6dcc2b1/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 06:37:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:13,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 89 conjunts are in the unsatisfiable core [2021-11-20 06:37:13,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:37:13,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-20 06:37:13,969 INFO L354 Elim1Store]: treesize reduction 168, result has 22.6 percent of original size [2021-11-20 06:37:13,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 101 treesize of output 133 [2021-11-20 06:37:14,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 22 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 51 [2021-11-20 06:37:14,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 13 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 25 [2021-11-20 06:37:15,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 13 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 25 [2021-11-20 06:37:15,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 13 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 25 [2021-11-20 06:37:17,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 22 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 51 [2021-11-20 06:37:17,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 13 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 25 [2021-11-20 06:37:17,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 13 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 25 [2021-11-20 06:37:18,463 INFO L354 Elim1Store]: treesize reduction 119, result has 15.6 percent of original size [2021-11-20 06:37:18,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 93 treesize of output 53