./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa --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 1c5ecbc156ef402fa8ca002c27ace1df37fef4394f3f2e7d74e739b1fb38fbd5 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:23:28,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:23:28,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:23:28,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:23:28,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:23:28,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:23:28,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:23:28,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:23:28,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:23:28,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:23:28,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:23:28,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:23:28,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:23:28,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:23:28,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:23:28,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:23:28,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:23:28,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:23:28,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:23:28,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:23:28,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:23:28,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:23:28,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:23:28,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:23:28,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:23:28,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:23:28,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:23:28,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:23:28,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:23:28,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:23:28,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:23:28,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:23:28,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:23:28,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:23:28,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:23:28,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:23:28,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:23:28,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:23:28,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:23:28,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:23:28,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:23:28,558 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 17:23:28,580 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:23:28,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:23:28,581 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:23:28,581 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:23:28,581 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:23:28,581 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:23:28,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:23:28,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:23:28,582 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:23:28,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:23:28,583 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:23:28,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:23:28,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:23:28,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:23:28,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:23:28,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:23:28,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:23:28,584 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:23:28,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:23:28,584 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:23:28,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:23:28,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:23:28,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:23:28,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:23:28,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:23:28,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:23:28,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:23:28,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:23:28,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:23:28,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:23:28,585 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:23:28,586 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:23:28,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:23:28,586 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:23:28,586 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_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c5ecbc156ef402fa8ca002c27ace1df37fef4394f3f2e7d74e739b1fb38fbd5 [2021-12-06 17:23:28,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:23:28,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:23:28,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:23:28,806 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:23:28,806 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:23:28,807 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c [2021-12-06 17:23:28,854 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/data/a02618028/c9bf1eb8a1124ffdacdae5d2228233bc/FLAGb31328ee5 [2021-12-06 17:23:29,348 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:23:29,349 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c [2021-12-06 17:23:29,362 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/data/a02618028/c9bf1eb8a1124ffdacdae5d2228233bc/FLAGb31328ee5 [2021-12-06 17:23:29,641 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/data/a02618028/c9bf1eb8a1124ffdacdae5d2228233bc [2021-12-06 17:23:29,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:23:29,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:23:29,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:23:29,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:23:29,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:23:29,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:23:29" (1/1) ... [2021-12-06 17:23:29,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ff8f442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:29, skipping insertion in model container [2021-12-06 17:23:29,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:23:29" (1/1) ... [2021-12-06 17:23:29,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:23:29,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:23:29,934 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_f9dddced-488a-41d3-8a49-d1a8aad458fd/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c[65397,65410] [2021-12-06 17:23:29,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:23:29,953 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:23:30,036 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_f9dddced-488a-41d3-8a49-d1a8aad458fd/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c[65397,65410] [2021-12-06 17:23:30,039 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:23:30,055 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:23:30,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:30 WrapperNode [2021-12-06 17:23:30,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:23:30,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:23:30,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:23:30,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:23:30,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:30" (1/1) ... [2021-12-06 17:23:30,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:30" (1/1) ... [2021-12-06 17:23:30,128 INFO L137 Inliner]: procedures = 31, calls = 217, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 718 [2021-12-06 17:23:30,129 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:23:30,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:23:30,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:23:30,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:23:30,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:30" (1/1) ... [2021-12-06 17:23:30,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:30" (1/1) ... [2021-12-06 17:23:30,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:30" (1/1) ... [2021-12-06 17:23:30,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:30" (1/1) ... [2021-12-06 17:23:30,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:30" (1/1) ... [2021-12-06 17:23:30,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:30" (1/1) ... [2021-12-06 17:23:30,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:30" (1/1) ... [2021-12-06 17:23:30,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:23:30,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:23:30,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:23:30,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:23:30,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:30" (1/1) ... [2021-12-06 17:23:30,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:23:30,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:23:30,231 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:23:30,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:23:30,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:23:30,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 17:23:30,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 17:23:30,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 17:23:30,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 17:23:30,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:23:30,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 17:23:30,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:23:30,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:23:30,367 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:23:30,368 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:23:30,382 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 17:23:32,942 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-12-06 17:23:32,942 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-12-06 17:23:32,943 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:23:32,948 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:23:32,949 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 17:23:32,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:23:32 BoogieIcfgContainer [2021-12-06 17:23:32,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:23:32,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:23:32,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:23:32,954 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:23:32,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:23:29" (1/3) ... [2021-12-06 17:23:32,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609497be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:23:32, skipping insertion in model container [2021-12-06 17:23:32,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:30" (2/3) ... [2021-12-06 17:23:32,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609497be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:23:32, skipping insertion in model container [2021-12-06 17:23:32,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:23:32" (3/3) ... [2021-12-06 17:23:32,963 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.03.i.cil-1.c [2021-12-06 17:23:32,967 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:23:32,967 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 17:23:33,022 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:23:33,028 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 [2021-12-06 17:23:33,029 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 17:23:33,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:33,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-06 17:23:33,053 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:23:33,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:23:33,055 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:23:33,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:23:33,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1457695037, now seen corresponding path program 1 times [2021-12-06 17:23:33,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:23:33,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308412929] [2021-12-06 17:23:33,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:23:33,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:23:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:23:33,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:23:33,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:23:33,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308412929] [2021-12-06 17:23:33,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308412929] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:23:33,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:23:33,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:23:33,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087796590] [2021-12-06 17:23:33,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:23:33,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:23:33,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:23:33,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:23:33,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:23:33,547 INFO L87 Difference]: Start difference. First operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:35,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:35,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:23:35,939 INFO L93 Difference]: Finished difference Result 360 states and 608 transitions. [2021-12-06 17:23:35,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:23:35,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-06 17:23:35,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:23:35,949 INFO L225 Difference]: With dead ends: 360 [2021-12-06 17:23:35,949 INFO L226 Difference]: Without dead ends: 205 [2021-12-06 17:23:35,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:23:35,954 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 143 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-06 17:23:35,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 378 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-06 17:23:35,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-12-06 17:23:35,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 136. [2021-12-06 17:23:35,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.5629629629629629) internal successors, (211), 135 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:35,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 211 transitions. [2021-12-06 17:23:35,988 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 211 transitions. Word has length 24 [2021-12-06 17:23:35,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:23:35,988 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 211 transitions. [2021-12-06 17:23:35,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:35,989 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 211 transitions. [2021-12-06 17:23:35,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-06 17:23:35,990 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:23:35,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:23:35,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 17:23:35,990 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:23:35,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:23:35,991 INFO L85 PathProgramCache]: Analyzing trace with hash 2051408280, now seen corresponding path program 1 times [2021-12-06 17:23:35,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:23:35,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738441799] [2021-12-06 17:23:35,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:23:35,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:23:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:23:36,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:23:36,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:23:36,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738441799] [2021-12-06 17:23:36,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738441799] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:23:36,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:23:36,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:23:36,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550816291] [2021-12-06 17:23:36,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:23:36,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:23:36,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:23:36,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:23:36,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:23:36,175 INFO L87 Difference]: Start difference. First operand 136 states and 211 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:38,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:38,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:23:38,384 INFO L93 Difference]: Finished difference Result 358 states and 553 transitions. [2021-12-06 17:23:38,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:23:38,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-12-06 17:23:38,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:23:38,386 INFO L225 Difference]: With dead ends: 358 [2021-12-06 17:23:38,386 INFO L226 Difference]: Without dead ends: 229 [2021-12-06 17:23:38,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:23:38,388 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 108 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:23:38,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 264 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 17:23:38,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-12-06 17:23:38,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 161. [2021-12-06 17:23:38,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 1.59375) internal successors, (255), 160 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:38,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 255 transitions. [2021-12-06 17:23:38,399 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 255 transitions. Word has length 25 [2021-12-06 17:23:38,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:23:38,399 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 255 transitions. [2021-12-06 17:23:38,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:38,399 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 255 transitions. [2021-12-06 17:23:38,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 17:23:38,401 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:23:38,401 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:23:38,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 17:23:38,401 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:23:38,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:23:38,402 INFO L85 PathProgramCache]: Analyzing trace with hash -144154468, now seen corresponding path program 1 times [2021-12-06 17:23:38,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:23:38,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292089188] [2021-12-06 17:23:38,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:23:38,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:23:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:23:38,572 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:23:38,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:23:38,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292089188] [2021-12-06 17:23:38,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292089188] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:23:38,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:23:38,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:23:38,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342664697] [2021-12-06 17:23:38,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:23:38,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:23:38,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:23:38,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:23:38,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:23:38,574 INFO L87 Difference]: Start difference. First operand 161 states and 255 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:40,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:40,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:23:40,820 INFO L93 Difference]: Finished difference Result 408 states and 639 transitions. [2021-12-06 17:23:40,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:23:40,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-12-06 17:23:40,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:23:40,822 INFO L225 Difference]: With dead ends: 408 [2021-12-06 17:23:40,822 INFO L226 Difference]: Without dead ends: 254 [2021-12-06 17:23:40,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:23:40,824 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 110 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:23:40,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 264 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 17:23:40,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-12-06 17:23:40,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 183. [2021-12-06 17:23:40,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 182 states have (on average 1.6043956043956045) internal successors, (292), 182 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:40,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 292 transitions. [2021-12-06 17:23:40,834 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 292 transitions. Word has length 45 [2021-12-06 17:23:40,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:23:40,834 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 292 transitions. [2021-12-06 17:23:40,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:40,834 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 292 transitions. [2021-12-06 17:23:40,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 17:23:40,836 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:23:40,836 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:23:40,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 17:23:40,836 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:23:40,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:23:40,837 INFO L85 PathProgramCache]: Analyzing trace with hash 205659207, now seen corresponding path program 1 times [2021-12-06 17:23:40,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:23:40,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631917211] [2021-12-06 17:23:40,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:23:40,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:23:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:23:40,998 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:23:40,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:23:40,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631917211] [2021-12-06 17:23:40,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631917211] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:23:40,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:23:40,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:23:40,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635142775] [2021-12-06 17:23:40,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:23:40,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:23:40,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:23:41,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:23:41,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:23:41,000 INFO L87 Difference]: Start difference. First operand 183 states and 292 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:43,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:43,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:23:43,257 INFO L93 Difference]: Finished difference Result 427 states and 670 transitions. [2021-12-06 17:23:43,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:23:43,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-12-06 17:23:43,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:23:43,259 INFO L225 Difference]: With dead ends: 427 [2021-12-06 17:23:43,259 INFO L226 Difference]: Without dead ends: 251 [2021-12-06 17:23:43,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:23:43,261 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 109 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:23:43,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 276 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 17:23:43,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-12-06 17:23:43,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 183. [2021-12-06 17:23:43,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 182 states have (on average 1.5934065934065933) internal successors, (290), 182 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:43,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 290 transitions. [2021-12-06 17:23:43,269 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 290 transitions. Word has length 46 [2021-12-06 17:23:43,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:23:43,269 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 290 transitions. [2021-12-06 17:23:43,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:43,270 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 290 transitions. [2021-12-06 17:23:43,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-06 17:23:43,272 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:23:43,272 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:23:43,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 17:23:43,272 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:23:43,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:23:43,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1474224769, now seen corresponding path program 1 times [2021-12-06 17:23:43,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:23:43,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963461923] [2021-12-06 17:23:43,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:23:43,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:23:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:23:43,407 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-06 17:23:43,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:23:43,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963461923] [2021-12-06 17:23:43,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963461923] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:23:43,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:23:43,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:23:43,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078553224] [2021-12-06 17:23:43,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:23:43,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:23:43,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:23:43,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:23:43,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:23:43,409 INFO L87 Difference]: Start difference. First operand 183 states and 290 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:45,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:45,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:23:45,566 INFO L93 Difference]: Finished difference Result 363 states and 574 transitions. [2021-12-06 17:23:45,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:23:45,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-12-06 17:23:45,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:23:45,568 INFO L225 Difference]: With dead ends: 363 [2021-12-06 17:23:45,568 INFO L226 Difference]: Without dead ends: 187 [2021-12-06 17:23:45,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:23:45,570 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 7 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:23:45,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 403 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-12-06 17:23:45,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-12-06 17:23:45,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 186. [2021-12-06 17:23:45,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.5837837837837838) internal successors, (293), 185 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:45,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 293 transitions. [2021-12-06 17:23:45,580 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 293 transitions. Word has length 60 [2021-12-06 17:23:45,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:23:45,580 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 293 transitions. [2021-12-06 17:23:45,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:45,580 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 293 transitions. [2021-12-06 17:23:45,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-06 17:23:45,583 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:23:45,583 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:23:45,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 17:23:45,584 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:23:45,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:23:45,584 INFO L85 PathProgramCache]: Analyzing trace with hash 2142953433, now seen corresponding path program 1 times [2021-12-06 17:23:45,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:23:45,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901890264] [2021-12-06 17:23:45,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:23:45,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:23:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:23:45,774 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-06 17:23:45,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:23:45,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901890264] [2021-12-06 17:23:45,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901890264] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:23:45,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:23:45,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:23:45,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979052256] [2021-12-06 17:23:45,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:23:45,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:23:45,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:23:45,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:23:45,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:23:45,776 INFO L87 Difference]: Start difference. First operand 186 states and 293 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:45,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:23:45,799 INFO L93 Difference]: Finished difference Result 534 states and 847 transitions. [2021-12-06 17:23:45,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:23:45,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-12-06 17:23:45,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:23:45,802 INFO L225 Difference]: With dead ends: 534 [2021-12-06 17:23:45,803 INFO L226 Difference]: Without dead ends: 358 [2021-12-06 17:23:45,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:23:45,804 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 106 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:23:45,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 310 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:23:45,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-12-06 17:23:45,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2021-12-06 17:23:45,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 357 states have (on average 1.5742296918767507) internal successors, (562), 357 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:45,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 562 transitions. [2021-12-06 17:23:45,818 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 562 transitions. Word has length 74 [2021-12-06 17:23:45,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:23:45,819 INFO L470 AbstractCegarLoop]: Abstraction has 358 states and 562 transitions. [2021-12-06 17:23:45,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:45,819 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 562 transitions. [2021-12-06 17:23:45,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-06 17:23:45,821 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:23:45,821 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 17:23:45,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 17:23:45,822 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:23:45,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:23:45,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1516800529, now seen corresponding path program 1 times [2021-12-06 17:23:45,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:23:45,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334812146] [2021-12-06 17:23:45,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:23:45,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:23:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:23:45,968 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-06 17:23:45,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:23:45,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334812146] [2021-12-06 17:23:45,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334812146] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:23:45,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:23:45,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:23:45,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094812121] [2021-12-06 17:23:45,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:23:45,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:23:45,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:23:45,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:23:45,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:23:45,971 INFO L87 Difference]: Start difference. First operand 358 states and 562 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:47,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:49,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:50,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:23:50,179 INFO L93 Difference]: Finished difference Result 570 states and 896 transitions. [2021-12-06 17:23:50,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:23:50,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-12-06 17:23:50,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:23:50,181 INFO L225 Difference]: With dead ends: 570 [2021-12-06 17:23:50,181 INFO L226 Difference]: Without dead ends: 394 [2021-12-06 17:23:50,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:23:50,182 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 33 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:23:50,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 472 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 135 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-06 17:23:50,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-12-06 17:23:50,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 376. [2021-12-06 17:23:50,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 375 states have (on average 1.5786666666666667) internal successors, (592), 375 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:50,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 592 transitions. [2021-12-06 17:23:50,192 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 592 transitions. Word has length 89 [2021-12-06 17:23:50,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:23:50,192 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 592 transitions. [2021-12-06 17:23:50,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:50,192 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 592 transitions. [2021-12-06 17:23:50,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-06 17:23:50,193 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:23:50,193 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:23:50,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 17:23:50,194 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:23:50,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:23:50,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1941959831, now seen corresponding path program 2 times [2021-12-06 17:23:50,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:23:50,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116137358] [2021-12-06 17:23:50,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:23:50,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:23:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:23:50,335 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 17:23:50,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:23:50,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116137358] [2021-12-06 17:23:50,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116137358] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:23:50,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:23:50,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:23:50,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589531773] [2021-12-06 17:23:50,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:23:50,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:23:50,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:23:50,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:23:50,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:23:50,336 INFO L87 Difference]: Start difference. First operand 376 states and 592 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:52,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:54,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:54,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:23:54,520 INFO L93 Difference]: Finished difference Result 587 states and 924 transitions. [2021-12-06 17:23:54,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:23:54,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-12-06 17:23:54,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:23:54,523 INFO L225 Difference]: With dead ends: 587 [2021-12-06 17:23:54,523 INFO L226 Difference]: Without dead ends: 393 [2021-12-06 17:23:54,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:23:54,524 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 39 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:23:54,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 472 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 130 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-06 17:23:54,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2021-12-06 17:23:54,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 376. [2021-12-06 17:23:54,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 375 states have (on average 1.576) internal successors, (591), 375 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:54,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 591 transitions. [2021-12-06 17:23:54,537 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 591 transitions. Word has length 103 [2021-12-06 17:23:54,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:23:54,538 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 591 transitions. [2021-12-06 17:23:54,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:54,538 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 591 transitions. [2021-12-06 17:23:54,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-06 17:23:54,539 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:23:54,540 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:23:54,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 17:23:54,540 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:23:54,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:23:54,540 INFO L85 PathProgramCache]: Analyzing trace with hash -435294325, now seen corresponding path program 1 times [2021-12-06 17:23:54,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:23:54,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499355413] [2021-12-06 17:23:54,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:23:54,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:23:54,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:23:54,688 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 17:23:54,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:23:54,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499355413] [2021-12-06 17:23:54,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499355413] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:23:54,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:23:54,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:23:54,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147145345] [2021-12-06 17:23:54,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:23:54,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:23:54,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:23:54,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:23:54,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:23:54,690 INFO L87 Difference]: Start difference. First operand 376 states and 591 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:56,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:58,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:23:58,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:23:58,886 INFO L93 Difference]: Finished difference Result 587 states and 922 transitions. [2021-12-06 17:23:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:23:58,887 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-12-06 17:23:58,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:23:58,889 INFO L225 Difference]: With dead ends: 587 [2021-12-06 17:23:58,889 INFO L226 Difference]: Without dead ends: 393 [2021-12-06 17:23:58,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:23:58,890 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 37 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:23:58,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 470 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 130 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-06 17:23:58,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2021-12-06 17:23:58,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 376. [2021-12-06 17:23:58,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 375 states have (on average 1.5733333333333333) internal successors, (590), 375 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:58,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 590 transitions. [2021-12-06 17:23:58,900 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 590 transitions. Word has length 103 [2021-12-06 17:23:58,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:23:58,900 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 590 transitions. [2021-12-06 17:23:58,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:23:58,900 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 590 transitions. [2021-12-06 17:23:58,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-06 17:23:58,901 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:23:58,901 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:23:58,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 17:23:58,902 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:23:58,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:23:58,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1678095936, now seen corresponding path program 1 times [2021-12-06 17:23:58,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:23:58,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603656719] [2021-12-06 17:23:58,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:23:58,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:23:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:23:59,040 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 17:23:59,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:23:59,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603656719] [2021-12-06 17:23:59,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603656719] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:23:59,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:23:59,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:23:59,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091606450] [2021-12-06 17:23:59,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:23:59,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:23:59,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:23:59,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:23:59,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:23:59,042 INFO L87 Difference]: Start difference. First operand 376 states and 590 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:00,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:02,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:02,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:24:02,468 INFO L93 Difference]: Finished difference Result 587 states and 920 transitions. [2021-12-06 17:24:02,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:24:02,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-12-06 17:24:02,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:24:02,471 INFO L225 Difference]: With dead ends: 587 [2021-12-06 17:24:02,471 INFO L226 Difference]: Without dead ends: 393 [2021-12-06 17:24:02,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:24:02,472 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 35 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-06 17:24:02,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 468 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 131 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2021-12-06 17:24:02,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2021-12-06 17:24:02,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 376. [2021-12-06 17:24:02,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 375 states have (on average 1.5706666666666667) internal successors, (589), 375 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:02,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 589 transitions. [2021-12-06 17:24:02,480 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 589 transitions. Word has length 104 [2021-12-06 17:24:02,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:24:02,480 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 589 transitions. [2021-12-06 17:24:02,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:02,480 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 589 transitions. [2021-12-06 17:24:02,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-06 17:24:02,487 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:24:02,487 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:24:02,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 17:24:02,487 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:24:02,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:24:02,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1232675130, now seen corresponding path program 1 times [2021-12-06 17:24:02,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:24:02,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956201642] [2021-12-06 17:24:02,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:24:02,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:24:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:02,624 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 17:24:02,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:24:02,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956201642] [2021-12-06 17:24:02,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956201642] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:24:02,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:24:02,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:24:02,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882545756] [2021-12-06 17:24:02,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:24:02,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:24:02,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:24:02,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:24:02,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:24:02,625 INFO L87 Difference]: Start difference. First operand 376 states and 589 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:04,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:06,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:06,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:24:06,821 INFO L93 Difference]: Finished difference Result 587 states and 918 transitions. [2021-12-06 17:24:06,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:24:06,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-12-06 17:24:06,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:24:06,824 INFO L225 Difference]: With dead ends: 587 [2021-12-06 17:24:06,824 INFO L226 Difference]: Without dead ends: 393 [2021-12-06 17:24:06,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:24:06,825 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 33 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:24:06,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 466 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 130 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-12-06 17:24:06,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2021-12-06 17:24:06,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 376. [2021-12-06 17:24:06,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 375 states have (on average 1.568) internal successors, (588), 375 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:06,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 588 transitions. [2021-12-06 17:24:06,833 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 588 transitions. Word has length 105 [2021-12-06 17:24:06,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:24:06,833 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 588 transitions. [2021-12-06 17:24:06,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:06,833 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 588 transitions. [2021-12-06 17:24:06,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-06 17:24:06,834 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:24:06,834 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:24:06,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 17:24:06,834 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:24:06,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:24:06,835 INFO L85 PathProgramCache]: Analyzing trace with hash 8033051, now seen corresponding path program 1 times [2021-12-06 17:24:06,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:24:06,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496620700] [2021-12-06 17:24:06,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:24:06,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:24:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:06,975 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 17:24:06,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:24:06,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496620700] [2021-12-06 17:24:06,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496620700] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:24:06,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:24:06,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:24:06,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944863771] [2021-12-06 17:24:06,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:24:06,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:24:06,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:24:06,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:24:06,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:24:06,976 INFO L87 Difference]: Start difference. First operand 376 states and 588 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:08,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:09,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:24:09,217 INFO L93 Difference]: Finished difference Result 875 states and 1348 transitions. [2021-12-06 17:24:09,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:24:09,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-06 17:24:09,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:24:09,220 INFO L225 Difference]: With dead ends: 875 [2021-12-06 17:24:09,220 INFO L226 Difference]: Without dead ends: 509 [2021-12-06 17:24:09,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:24:09,221 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 114 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:24:09,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 276 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 17:24:09,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2021-12-06 17:24:09,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 376. [2021-12-06 17:24:09,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 375 states have (on average 1.5493333333333332) internal successors, (581), 375 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:09,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 581 transitions. [2021-12-06 17:24:09,230 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 581 transitions. Word has length 106 [2021-12-06 17:24:09,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:24:09,230 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 581 transitions. [2021-12-06 17:24:09,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:09,231 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 581 transitions. [2021-12-06 17:24:09,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-06 17:24:09,232 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:24:09,232 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:24:09,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 17:24:09,232 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:24:09,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:24:09,232 INFO L85 PathProgramCache]: Analyzing trace with hash -2005302672, now seen corresponding path program 1 times [2021-12-06 17:24:09,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:24:09,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601228815] [2021-12-06 17:24:09,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:24:09,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:24:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:09,372 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-06 17:24:09,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:24:09,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601228815] [2021-12-06 17:24:09,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601228815] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:24:09,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:24:09,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:24:09,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884086559] [2021-12-06 17:24:09,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:24:09,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:24:09,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:24:09,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:24:09,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:24:09,373 INFO L87 Difference]: Start difference. First operand 376 states and 581 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:11,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:11,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:24:11,630 INFO L93 Difference]: Finished difference Result 929 states and 1418 transitions. [2021-12-06 17:24:11,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:24:11,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-12-06 17:24:11,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:24:11,633 INFO L225 Difference]: With dead ends: 929 [2021-12-06 17:24:11,633 INFO L226 Difference]: Without dead ends: 563 [2021-12-06 17:24:11,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:24:11,634 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 93 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 36 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:24:11,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 278 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 17:24:11,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2021-12-06 17:24:11,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 452. [2021-12-06 17:24:11,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 451 states have (on average 1.5676274944567627) internal successors, (707), 451 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:11,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 707 transitions. [2021-12-06 17:24:11,644 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 707 transitions. Word has length 107 [2021-12-06 17:24:11,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:24:11,644 INFO L470 AbstractCegarLoop]: Abstraction has 452 states and 707 transitions. [2021-12-06 17:24:11,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:11,645 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 707 transitions. [2021-12-06 17:24:11,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-06 17:24:11,646 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:24:11,646 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:24:11,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 17:24:11,646 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:24:11,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:24:11,646 INFO L85 PathProgramCache]: Analyzing trace with hash 546201863, now seen corresponding path program 1 times [2021-12-06 17:24:11,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:24:11,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743949478] [2021-12-06 17:24:11,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:24:11,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:24:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:11,779 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-06 17:24:11,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:24:11,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743949478] [2021-12-06 17:24:11,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743949478] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:24:11,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:24:11,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:24:11,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029442884] [2021-12-06 17:24:11,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:24:11,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:24:11,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:24:11,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:24:11,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:24:11,781 INFO L87 Difference]: Start difference. First operand 452 states and 707 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:13,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:14,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:24:14,030 INFO L93 Difference]: Finished difference Result 1027 states and 1586 transitions. [2021-12-06 17:24:14,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:24:14,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-12-06 17:24:14,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:24:14,033 INFO L225 Difference]: With dead ends: 1027 [2021-12-06 17:24:14,033 INFO L226 Difference]: Without dead ends: 585 [2021-12-06 17:24:14,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:24:14,034 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 92 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:24:14,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 276 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 17:24:14,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2021-12-06 17:24:14,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 476. [2021-12-06 17:24:14,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 475 states have (on average 1.585263157894737) internal successors, (753), 475 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:14,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 753 transitions. [2021-12-06 17:24:14,043 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 753 transitions. Word has length 108 [2021-12-06 17:24:14,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:24:14,043 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 753 transitions. [2021-12-06 17:24:14,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:14,044 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 753 transitions. [2021-12-06 17:24:14,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-06 17:24:14,045 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:24:14,045 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:24:14,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 17:24:14,045 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:24:14,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:24:14,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1432649300, now seen corresponding path program 1 times [2021-12-06 17:24:14,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:24:14,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222584847] [2021-12-06 17:24:14,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:24:14,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:24:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:14,242 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-06 17:24:14,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:24:14,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222584847] [2021-12-06 17:24:14,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222584847] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:24:14,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:24:14,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:24:14,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404017110] [2021-12-06 17:24:14,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:24:14,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:24:14,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:24:14,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:24:14,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:24:14,243 INFO L87 Difference]: Start difference. First operand 476 states and 753 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:16,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:16,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:24:16,521 INFO L93 Difference]: Finished difference Result 1051 states and 1630 transitions. [2021-12-06 17:24:16,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:24:16,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-12-06 17:24:16,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:24:16,524 INFO L225 Difference]: With dead ends: 1051 [2021-12-06 17:24:16,524 INFO L226 Difference]: Without dead ends: 585 [2021-12-06 17:24:16,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:24:16,525 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 90 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-06 17:24:16,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 276 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-06 17:24:16,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2021-12-06 17:24:16,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 478. [2021-12-06 17:24:16,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 477 states have (on average 1.5828092243186582) internal successors, (755), 477 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:16,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 755 transitions. [2021-12-06 17:24:16,534 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 755 transitions. Word has length 108 [2021-12-06 17:24:16,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:24:16,534 INFO L470 AbstractCegarLoop]: Abstraction has 478 states and 755 transitions. [2021-12-06 17:24:16,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:16,534 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 755 transitions. [2021-12-06 17:24:16,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-06 17:24:16,535 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:24:16,535 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:24:16,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 17:24:16,536 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:24:16,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:24:16,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1835668675, now seen corresponding path program 1 times [2021-12-06 17:24:16,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:24:16,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224366695] [2021-12-06 17:24:16,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:24:16,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:24:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:16,671 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-06 17:24:16,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:24:16,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224366695] [2021-12-06 17:24:16,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224366695] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:24:16,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:24:16,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:24:16,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70249049] [2021-12-06 17:24:16,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:24:16,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:24:16,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:24:16,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:24:16,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:24:16,673 INFO L87 Difference]: Start difference. First operand 478 states and 755 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:18,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:18,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:24:18,922 INFO L93 Difference]: Finished difference Result 1049 states and 1626 transitions. [2021-12-06 17:24:18,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:24:18,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-06 17:24:18,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:24:18,925 INFO L225 Difference]: With dead ends: 1049 [2021-12-06 17:24:18,925 INFO L226 Difference]: Without dead ends: 581 [2021-12-06 17:24:18,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:24:18,926 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 87 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:24:18,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 266 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 207 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 17:24:18,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2021-12-06 17:24:18,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 480. [2021-12-06 17:24:18,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 479 states have (on average 1.5803757828810021) internal successors, (757), 479 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:18,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 757 transitions. [2021-12-06 17:24:18,935 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 757 transitions. Word has length 109 [2021-12-06 17:24:18,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:24:18,936 INFO L470 AbstractCegarLoop]: Abstraction has 480 states and 757 transitions. [2021-12-06 17:24:18,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:18,936 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 757 transitions. [2021-12-06 17:24:18,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-06 17:24:18,937 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:24:18,937 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:24:18,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 17:24:18,937 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:24:18,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:24:18,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1487102300, now seen corresponding path program 1 times [2021-12-06 17:24:18,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:24:18,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901260891] [2021-12-06 17:24:18,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:24:18,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:24:19,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:19,075 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-06 17:24:19,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:24:19,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901260891] [2021-12-06 17:24:19,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901260891] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:24:19,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:24:19,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:24:19,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575499838] [2021-12-06 17:24:19,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:24:19,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:24:19,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:24:19,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:24:19,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:24:19,077 INFO L87 Difference]: Start difference. First operand 480 states and 757 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:21,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:21,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:24:21,328 INFO L93 Difference]: Finished difference Result 1131 states and 1756 transitions. [2021-12-06 17:24:21,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:24:21,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-06 17:24:21,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:24:21,332 INFO L225 Difference]: With dead ends: 1131 [2021-12-06 17:24:21,332 INFO L226 Difference]: Without dead ends: 661 [2021-12-06 17:24:21,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:24:21,333 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 105 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:24:21,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 280 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 17:24:21,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2021-12-06 17:24:21,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 522. [2021-12-06 17:24:21,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 521 states have (on average 1.5719769673704416) internal successors, (819), 521 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:21,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 819 transitions. [2021-12-06 17:24:21,343 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 819 transitions. Word has length 110 [2021-12-06 17:24:21,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:24:21,343 INFO L470 AbstractCegarLoop]: Abstraction has 522 states and 819 transitions. [2021-12-06 17:24:21,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:21,343 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 819 transitions. [2021-12-06 17:24:21,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-06 17:24:21,344 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:24:21,344 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:24:21,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 17:24:21,344 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:24:21,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:24:21,345 INFO L85 PathProgramCache]: Analyzing trace with hash -540911783, now seen corresponding path program 1 times [2021-12-06 17:24:21,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:24:21,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284982557] [2021-12-06 17:24:21,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:24:21,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:24:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:21,475 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-06 17:24:21,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:24:21,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284982557] [2021-12-06 17:24:21,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284982557] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:24:21,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:24:21,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:24:21,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208814330] [2021-12-06 17:24:21,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:24:21,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:24:21,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:24:21,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:24:21,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:24:21,476 INFO L87 Difference]: Start difference. First operand 522 states and 819 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:23,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:23,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:24:23,717 INFO L93 Difference]: Finished difference Result 1129 states and 1742 transitions. [2021-12-06 17:24:23,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:24:23,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-06 17:24:23,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:24:23,720 INFO L225 Difference]: With dead ends: 1129 [2021-12-06 17:24:23,721 INFO L226 Difference]: Without dead ends: 615 [2021-12-06 17:24:23,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:24:23,722 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 83 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:24:23,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 272 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 201 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 17:24:23,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2021-12-06 17:24:23,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 526. [2021-12-06 17:24:23,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 1.5714285714285714) internal successors, (825), 525 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:23,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 825 transitions. [2021-12-06 17:24:23,731 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 825 transitions. Word has length 110 [2021-12-06 17:24:23,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:24:23,732 INFO L470 AbstractCegarLoop]: Abstraction has 526 states and 825 transitions. [2021-12-06 17:24:23,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:23,732 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 825 transitions. [2021-12-06 17:24:23,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-06 17:24:23,733 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:24:23,733 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:24:23,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 17:24:23,733 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:24:23,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:24:23,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1069705694, now seen corresponding path program 1 times [2021-12-06 17:24:23,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:24:23,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938916301] [2021-12-06 17:24:23,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:24:23,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:24:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:23,860 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-06 17:24:23,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:24:23,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938916301] [2021-12-06 17:24:23,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938916301] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:24:23,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:24:23,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:24:23,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507721691] [2021-12-06 17:24:23,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:24:23,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:24:23,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:24:23,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:24:23,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:24:23,862 INFO L87 Difference]: Start difference. First operand 526 states and 825 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:25,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:25,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:24:25,912 INFO L93 Difference]: Finished difference Result 1061 states and 1669 transitions. [2021-12-06 17:24:25,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:24:25,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-06 17:24:25,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:24:25,916 INFO L225 Difference]: With dead ends: 1061 [2021-12-06 17:24:25,916 INFO L226 Difference]: Without dead ends: 792 [2021-12-06 17:24:25,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:24:25,917 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 124 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:24:25,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 468 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2021-12-06 17:24:25,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2021-12-06 17:24:25,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 792. [2021-12-06 17:24:25,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 791 states have (on average 1.5676359039190897) internal successors, (1240), 791 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:25,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1240 transitions. [2021-12-06 17:24:25,932 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1240 transitions. Word has length 110 [2021-12-06 17:24:25,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:24:25,932 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1240 transitions. [2021-12-06 17:24:25,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:25,932 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1240 transitions. [2021-12-06 17:24:25,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-06 17:24:25,934 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:24:25,934 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:24:25,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 17:24:25,934 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:24:25,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:24:25,934 INFO L85 PathProgramCache]: Analyzing trace with hash 609558021, now seen corresponding path program 1 times [2021-12-06 17:24:25,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:24:25,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202177540] [2021-12-06 17:24:25,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:24:25,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:24:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:26,085 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-06 17:24:26,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:24:26,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202177540] [2021-12-06 17:24:26,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202177540] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:24:26,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:24:26,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:24:26,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580275391] [2021-12-06 17:24:26,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:24:26,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:24:26,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:24:26,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:24:26,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:24:26,087 INFO L87 Difference]: Start difference. First operand 792 states and 1240 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:28,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:28,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:24:28,130 INFO L93 Difference]: Finished difference Result 1351 states and 2112 transitions. [2021-12-06 17:24:28,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:24:28,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-06 17:24:28,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:24:28,133 INFO L225 Difference]: With dead ends: 1351 [2021-12-06 17:24:28,133 INFO L226 Difference]: Without dead ends: 816 [2021-12-06 17:24:28,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:24:28,134 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 15 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:24:28,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 350 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2021-12-06 17:24:28,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2021-12-06 17:24:28,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 816. [2021-12-06 17:24:28,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 815 states have (on average 1.5607361963190185) internal successors, (1272), 815 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:28,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1272 transitions. [2021-12-06 17:24:28,152 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1272 transitions. Word has length 111 [2021-12-06 17:24:28,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:24:28,153 INFO L470 AbstractCegarLoop]: Abstraction has 816 states and 1272 transitions. [2021-12-06 17:24:28,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:28,153 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1272 transitions. [2021-12-06 17:24:28,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-06 17:24:28,154 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:24:28,154 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:24:28,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 17:24:28,155 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:24:28,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:24:28,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1254631592, now seen corresponding path program 1 times [2021-12-06 17:24:28,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:24:28,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100781870] [2021-12-06 17:24:28,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:24:28,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:24:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:24:28,909 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:24:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:24:29,257 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:24:29,258 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 17:24:29,258 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 17:24:29,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-06 17:24:29,262 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:24:29,264 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 17:24:29,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:24:29 BoogieIcfgContainer [2021-12-06 17:24:29,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 17:24:29,356 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 17:24:29,356 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 17:24:29,356 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 17:24:29,356 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:23:32" (3/4) ... [2021-12-06 17:24:29,358 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 17:24:29,358 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 17:24:29,359 INFO L158 Benchmark]: Toolchain (without parser) took 59714.07ms. Allocated memory was 96.5MB in the beginning and 207.6MB in the end (delta: 111.1MB). Free memory was 75.4MB in the beginning and 97.6MB in the end (delta: -22.2MB). Peak memory consumption was 90.0MB. Max. memory is 16.1GB. [2021-12-06 17:24:29,359 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 71.3MB. Free memory was 49.5MB in the beginning and 49.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:24:29,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.38ms. Allocated memory is still 96.5MB. Free memory was 75.0MB in the beginning and 68.3MB in the end (delta: 6.7MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2021-12-06 17:24:29,359 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.93ms. Allocated memory is still 96.5MB. Free memory was 68.3MB in the beginning and 63.6MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 17:24:29,360 INFO L158 Benchmark]: Boogie Preprocessor took 74.62ms. Allocated memory is still 96.5MB. Free memory was 63.6MB in the beginning and 57.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-06 17:24:29,360 INFO L158 Benchmark]: RCFGBuilder took 2745.55ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 56.8MB in the beginning and 61.0MB in the end (delta: -4.2MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2021-12-06 17:24:29,360 INFO L158 Benchmark]: TraceAbstraction took 56403.84ms. Allocated memory was 117.4MB in the beginning and 207.6MB in the end (delta: 90.2MB). Free memory was 60.0MB in the beginning and 98.6MB in the end (delta: -38.7MB). Peak memory consumption was 92.4MB. Max. memory is 16.1GB. [2021-12-06 17:24:29,360 INFO L158 Benchmark]: Witness Printer took 2.74ms. Allocated memory is still 207.6MB. Free memory was 98.6MB in the beginning and 97.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:24:29,362 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 71.3MB. Free memory was 49.5MB in the beginning and 49.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 410.38ms. Allocated memory is still 96.5MB. Free memory was 75.0MB in the beginning and 68.3MB in the end (delta: 6.7MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.93ms. Allocated memory is still 96.5MB. Free memory was 68.3MB in the beginning and 63.6MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.62ms. Allocated memory is still 96.5MB. Free memory was 63.6MB in the beginning and 57.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 2745.55ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 56.8MB in the beginning and 61.0MB in the end (delta: -4.2MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. * TraceAbstraction took 56403.84ms. Allocated memory was 117.4MB in the beginning and 207.6MB in the end (delta: 90.2MB). Free memory was 60.0MB in the beginning and 98.6MB in the end (delta: -38.7MB). Peak memory consumption was 92.4MB. Max. memory is 16.1GB. * Witness Printer took 2.74ms. Allocated memory is still 207.6MB. Free memory was 98.6MB in the beginning and 97.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1665]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 1360. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_client_data ; VAL [init=1, SSLv3_client_data={4:0}] [L1077] SSL *s = (SSL*)malloc(sizeof(SSL)) ; [L1081] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1082] s->ctx = malloc(sizeof(SSL_CTX)) [L1083] s->session = malloc(sizeof(SSL_SESSION)) [L1084] s->state = 12292 [L1085] s->version = __VERIFIER_nondet_int() [L1087] s->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1088] EXPR s->ctx [L1088] (s->ctx)->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1089] s->init_buf = (BUF_MEM *)__VERIFIER_nondet_ulong() [L1090] s->bbio = (BIO *) __VERIFIER_nondet_ulong() [L1091] s->wbio = (BIO *) __VERIFIER_nondet_ulong() [L1092] EXPR s->s3 [L1092] (s->s3)->flags = __VERIFIER_nondet_long() [L1093] EXPR s->s3 [L1093] (s->s3)->tmp.cert_req = __VERIFIER_nondet_int() [L1094] EXPR s->s3 [L1094] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1095] EXPR s->s3 [L1095] EXPR (s->s3)->tmp.new_cipher [L1095] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1096] EXPR s->s3 [L1096] (s->s3)->tmp.next_state = __VERIFIER_nondet_int() [L1098] CALL ssl3_connect(s) [L1104] BUF_MEM *buf ; [L1105] unsigned long tmp ; [L1106] unsigned long l ; [L1107] long num1 ; [L1108] void (*cb)() ; [L1109] int ret ; [L1110] int new_state ; [L1111] int state ; [L1112] int skip ; [L1113] int tmp___1 = __VERIFIER_nondet_int() ; [L1114] int tmp___2 = __VERIFIER_nondet_int() ; [L1115] int tmp___3 = __VERIFIER_nondet_int() ; [L1116] int tmp___4 = __VERIFIER_nondet_int() ; [L1117] int tmp___5 = __VERIFIER_nondet_int() ; [L1118] int tmp___6 = __VERIFIER_nondet_int() ; [L1119] int tmp___7 = __VERIFIER_nondet_int() ; [L1120] int tmp___8 = __VERIFIER_nondet_int() ; [L1121] long tmp___9 = __VERIFIER_nondet_long() ; [L1122] int blastFlag ; [L1125] blastFlag = 0 [L1126] s->hit=__VERIFIER_nondet_int () [L1127] s->state = 12292 [L1128] tmp = __VERIFIER_nondet_int() [L1129] cb = (void (*)())((void *)0) [L1130] ret = -1 [L1131] skip = 0 [L1132] EXPR s->info_callback VAL [={0:0}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->info_callback={0:-1}, skip=0, SSLv3_client_data={4:0}, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1132] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1133] EXPR s->info_callback [L1133] cb = s->info_callback [L1141] EXPR s->in_handshake [L1141] s->in_handshake += 1 [L1142] COND FALSE !(tmp___1 & 12288) VAL [={0:-1}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1152] COND TRUE 1 VAL [={0:-1}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1154] EXPR s->state [L1154] state = s->state [L1155] EXPR s->state VAL [={0:-1}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=12292, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1155] COND TRUE s->state == 12292 [L1258] s->new_session = 1 [L1259] s->state = 4096 [L1260] EXPR s->ctx [L1260] EXPR (s->ctx)->stats.sess_connect_renegotiate [L1260] (s->ctx)->stats.sess_connect_renegotiate += 1 [L1265] s->server = 0 VAL [={0:-1}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1266] COND TRUE (unsigned long )cb != (unsigned long )((void *)0) VAL [={0:-1}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1271] EXPR s->version VAL [={0:-1}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->version=6, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1271] COND FALSE !((s->version & 65280) != 768) [L1277] s->type = 4096 [L1278] EXPR s->init_buf VAL [={0:-1}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->init_buf={0:5}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1278] COND FALSE !((unsigned long )s->init_buf == (unsigned long )((void *)0)) [L1296] COND FALSE !(! tmp___4) VAL [={0:-1}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1302] COND FALSE !(! tmp___5) [L1308] s->state = 4368 [L1309] EXPR s->ctx [L1309] EXPR (s->ctx)->stats.sess_connect [L1309] (s->ctx)->stats.sess_connect += 1 [L1310] s->init_num = 0 VAL [={0:-1}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] EXPR s->s3 [L1624] EXPR (s->s3)->tmp.reuse_message VAL [={0:-1}, (s->s3)->tmp.reuse_message=4294967354, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->s3={-5:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1653] skip = 0 VAL [={0:-1}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1152] COND TRUE 1 VAL [={0:-1}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=12292, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1154] EXPR s->state [L1154] state = s->state [L1155] EXPR s->state VAL [={0:-1}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1155] COND FALSE !(s->state == 12292) [L1158] EXPR s->state VAL [={0:-1}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1158] COND FALSE !(s->state == 16384) [L1161] EXPR s->state VAL [={0:-1}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1161] COND FALSE !(s->state == 4096) [L1164] EXPR s->state VAL [={0:-1}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1164] COND FALSE !(s->state == 20480) [L1167] EXPR s->state VAL [={0:-1}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1167] COND FALSE !(s->state == 4099) [L1170] EXPR s->state VAL [={0:-1}, blastFlag=0, init=1, ret=-1, s={-8:0}, s={-8:0}, s->state=4368, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1170] COND TRUE s->state == 4368 [L1314] s->shutdown = 0 [L1315] ret = __VERIFIER_nondet_int() [L1316] COND TRUE blastFlag == 0 [L1317] blastFlag = 1 VAL [={0:-1}, blastFlag=1, init=1, ret=11, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1321] COND FALSE !(ret <= 0) [L1326] s->state = 4384 [L1327] s->init_num = 0 [L1328] EXPR s->bbio [L1328] EXPR s->wbio VAL [={0:-1}, blastFlag=1, init=1, ret=11, s={-8:0}, s={-8:0}, s->bbio={0:-15}, s->wbio={0:-13}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1328] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1624] EXPR s->s3 [L1624] EXPR (s->s3)->tmp.reuse_message VAL [={0:-1}, (s->s3)->tmp.reuse_message=4294967354, blastFlag=1, init=1, ret=11, s={-8:0}, s={-8:0}, s->s3={-5:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1653] skip = 0 VAL [={0:-1}, blastFlag=1, init=1, ret=11, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1152] COND TRUE 1 VAL [={0:-1}, blastFlag=1, init=1, ret=11, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4368, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1154] EXPR s->state [L1154] state = s->state [L1155] EXPR s->state VAL [={0:-1}, blastFlag=1, init=1, ret=11, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1155] COND FALSE !(s->state == 12292) [L1158] EXPR s->state VAL [={0:-1}, blastFlag=1, init=1, ret=11, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1158] COND FALSE !(s->state == 16384) [L1161] EXPR s->state VAL [={0:-1}, blastFlag=1, init=1, ret=11, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1161] COND FALSE !(s->state == 4096) [L1164] EXPR s->state VAL [={0:-1}, blastFlag=1, init=1, ret=11, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1164] COND FALSE !(s->state == 20480) [L1167] EXPR s->state VAL [={0:-1}, blastFlag=1, init=1, ret=11, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1167] COND FALSE !(s->state == 4099) [L1170] EXPR s->state VAL [={0:-1}, blastFlag=1, init=1, ret=11, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1170] COND FALSE !(s->state == 4368) [L1173] EXPR s->state VAL [={0:-1}, blastFlag=1, init=1, ret=11, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1173] COND FALSE !(s->state == 4369) [L1176] EXPR s->state VAL [={0:-1}, blastFlag=1, init=1, ret=11, s={-8:0}, s={-8:0}, s->state=4384, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1176] COND TRUE s->state == 4384 [L1336] ret = __VERIFIER_nondet_int() [L1337] COND TRUE blastFlag == 1 [L1338] blastFlag = 2 VAL [={0:-1}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1346] COND FALSE !(ret <= 0) [L1351] s->hit VAL [={0:-1}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->hit=0, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1351] COND FALSE !(s->hit) [L1354] s->state = 4400 VAL [={0:-1}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1356] s->init_num = 0 VAL [={0:-1}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] EXPR s->s3 [L1624] EXPR (s->s3)->tmp.reuse_message VAL [={0:-1}, (s->s3)->tmp.reuse_message=4294967354, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->s3={-5:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1653] skip = 0 VAL [={0:-1}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1152] COND TRUE 1 VAL [={0:-1}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4384, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1154] EXPR s->state [L1154] state = s->state [L1155] EXPR s->state VAL [={0:-1}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1155] COND FALSE !(s->state == 12292) [L1158] EXPR s->state VAL [={0:-1}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1158] COND FALSE !(s->state == 16384) [L1161] EXPR s->state VAL [={0:-1}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1161] COND FALSE !(s->state == 4096) [L1164] EXPR s->state VAL [={0:-1}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1164] COND FALSE !(s->state == 20480) [L1167] EXPR s->state VAL [={0:-1}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1167] COND FALSE !(s->state == 4099) [L1170] EXPR s->state VAL [={0:-1}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1170] COND FALSE !(s->state == 4368) [L1173] EXPR s->state VAL [={0:-1}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1173] COND FALSE !(s->state == 4369) [L1176] EXPR s->state VAL [={0:-1}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1176] COND FALSE !(s->state == 4384) [L1179] EXPR s->state VAL [={0:-1}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1179] COND FALSE !(s->state == 4385) [L1182] EXPR s->state VAL [={0:-1}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4400, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1182] COND TRUE s->state == 4400 [L1360] EXPR s->s3 [L1360] EXPR (s->s3)->tmp.new_cipher [L1360] EXPR ((s->s3)->tmp.new_cipher)->algorithms VAL [={0:-1}, ((s->s3)->tmp.new_cipher)->algorithms=4294967353, (s->s3)->tmp.new_cipher={-7:0}, blastFlag=2, init=1, ret=1, s={-8:0}, s={-8:0}, s->s3={-5:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1360] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1363] ret = __VERIFIER_nondet_int() [L1364] COND TRUE blastFlag == 2 [L1365] blastFlag = 3 VAL [={0:-1}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1369] COND FALSE !(ret <= 0) VAL [={0:-1}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1375] s->state = 4416 [L1376] s->init_num = 0 VAL [={0:-1}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] EXPR s->s3 [L1624] EXPR (s->s3)->tmp.reuse_message VAL [={0:-1}, (s->s3)->tmp.reuse_message=4294967354, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->s3={-5:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1653] skip = 0 VAL [={0:-1}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1152] COND TRUE 1 VAL [={0:-1}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4400, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1154] EXPR s->state [L1154] state = s->state [L1155] EXPR s->state VAL [={0:-1}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1155] COND FALSE !(s->state == 12292) [L1158] EXPR s->state VAL [={0:-1}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1158] COND FALSE !(s->state == 16384) [L1161] EXPR s->state VAL [={0:-1}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1161] COND FALSE !(s->state == 4096) [L1164] EXPR s->state VAL [={0:-1}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1164] COND FALSE !(s->state == 20480) [L1167] EXPR s->state VAL [={0:-1}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1167] COND FALSE !(s->state == 4099) [L1170] EXPR s->state VAL [={0:-1}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1170] COND FALSE !(s->state == 4368) [L1173] EXPR s->state VAL [={0:-1}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1173] COND FALSE !(s->state == 4369) [L1176] EXPR s->state VAL [={0:-1}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1176] COND FALSE !(s->state == 4384) [L1179] EXPR s->state VAL [={0:-1}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1179] COND FALSE !(s->state == 4385) [L1182] EXPR s->state VAL [={0:-1}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1182] COND FALSE !(s->state == 4400) [L1185] EXPR s->state VAL [={0:-1}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1185] COND FALSE !(s->state == 4401) [L1188] EXPR s->state VAL [={0:-1}, blastFlag=3, init=1, ret=18, s={-8:0}, s={-8:0}, s->state=4416, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1188] COND TRUE s->state == 4416 [L1380] ret = __VERIFIER_nondet_int() [L1381] COND TRUE blastFlag == 3 [L1382] blastFlag = 4 VAL [={0:-1}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1386] COND FALSE !(ret <= 0) [L1391] s->state = 4432 [L1392] s->init_num = 0 VAL [={0:-1}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1393] COND FALSE !(! tmp___6) VAL [={0:-1}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] EXPR s->s3 [L1624] EXPR (s->s3)->tmp.reuse_message VAL [={0:-1}, (s->s3)->tmp.reuse_message=4294967354, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->s3={-5:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1624] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1653] skip = 0 VAL [={0:-1}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1152] COND TRUE 1 VAL [={0:-1}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4416, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1154] EXPR s->state [L1154] state = s->state [L1155] EXPR s->state VAL [={0:-1}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1155] COND FALSE !(s->state == 12292) [L1158] EXPR s->state VAL [={0:-1}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1158] COND FALSE !(s->state == 16384) [L1161] EXPR s->state VAL [={0:-1}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1161] COND FALSE !(s->state == 4096) [L1164] EXPR s->state VAL [={0:-1}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1164] COND FALSE !(s->state == 20480) [L1167] EXPR s->state VAL [={0:-1}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1167] COND FALSE !(s->state == 4099) [L1170] EXPR s->state VAL [={0:-1}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1170] COND FALSE !(s->state == 4368) [L1173] EXPR s->state VAL [={0:-1}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1173] COND FALSE !(s->state == 4369) [L1176] EXPR s->state VAL [={0:-1}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1176] COND FALSE !(s->state == 4384) [L1179] EXPR s->state VAL [={0:-1}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1179] COND FALSE !(s->state == 4385) [L1182] EXPR s->state VAL [={0:-1}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1182] COND FALSE !(s->state == 4400) [L1185] EXPR s->state VAL [={0:-1}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1185] COND FALSE !(s->state == 4401) [L1188] EXPR s->state VAL [={0:-1}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1188] COND FALSE !(s->state == 4416) [L1191] EXPR s->state VAL [={0:-1}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1191] COND FALSE !(s->state == 4417) [L1194] EXPR s->state VAL [={0:-1}, blastFlag=4, init=1, ret=1, s={-8:0}, s={-8:0}, s->state=4432, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1194] COND TRUE s->state == 4432 [L1402] ret = __VERIFIER_nondet_int() [L1403] COND TRUE blastFlag == 4 VAL [={0:-1}, blastFlag=4, init=1, ret=0, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] [L1665] reach_error() VAL [={0:-1}, blastFlag=4, init=1, ret=0, s={-8:0}, s={-8:0}, skip=0, SSLv3_client_data={4:0}, state=4432, tmp=0, tmp___1=0, tmp___2=0, tmp___3=0, tmp___4=1, tmp___5=1, tmp___6=1, tmp___7=0, tmp___8=0, tmp___9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 56.2s, OverallIterations: 21, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 51.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 22 mSolverCounterUnknown, 1563 SdHoareTripleChecker+Valid, 51.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1563 mSDsluCounter, 6985 SdHoareTripleChecker+Invalid, 50.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4064 mSDsCounter, 502 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3119 IncrementalHoareTripleChecker+Invalid, 3643 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 502 mSolverCounterUnsat, 2921 mSDtfsCounter, 3119 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=816occurred in iteration=20, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 20 MinimizatonAttempts, 1152 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1869 NumberOfCodeBlocks, 1869 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1737 ConstructedInterpolants, 0 QuantifiedInterpolants, 4780 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 1426/1426 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-06 17:24:29,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa --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 1c5ecbc156ef402fa8ca002c27ace1df37fef4394f3f2e7d74e739b1fb38fbd5 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:24:30,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:24:30,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:24:30,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:24:30,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:24:30,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:24:30,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:24:30,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:24:30,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:24:30,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:24:30,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:24:30,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:24:30,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:24:30,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:24:30,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:24:30,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:24:30,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:24:30,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:24:30,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:24:30,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:24:30,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:24:30,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:24:30,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:24:30,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:24:30,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:24:30,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:24:30,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:24:30,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:24:30,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:24:30,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:24:30,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:24:30,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:24:30,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:24:30,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:24:30,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:24:30,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:24:30,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:24:30,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:24:30,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:24:30,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:24:30,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:24:30,933 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-06 17:24:30,952 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:24:30,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:24:30,952 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:24:30,953 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:24:30,953 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:24:30,953 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:24:30,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:24:30,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:24:30,954 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:24:30,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:24:30,954 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:24:30,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:24:30,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:24:30,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:24:30,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:24:30,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:24:30,955 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 17:24:30,955 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 17:24:30,956 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 17:24:30,956 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:24:30,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:24:30,956 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:24:30,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:24:30,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:24:30,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:24:30,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:24:30,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:24:30,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:24:30,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:24:30,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:24:30,957 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 17:24:30,957 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 17:24:30,958 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:24:30,958 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:24:30,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:24:30,958 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:24:30,958 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 17:24:30,958 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c5ecbc156ef402fa8ca002c27ace1df37fef4394f3f2e7d74e739b1fb38fbd5 [2021-12-06 17:24:31,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:24:31,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:24:31,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:24:31,213 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:24:31,214 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:24:31,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c [2021-12-06 17:24:31,261 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/data/1ef0723b4/18d72b656e4b4550bc659636140600b6/FLAG01adef94b [2021-12-06 17:24:31,725 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:24:31,725 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c [2021-12-06 17:24:31,739 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/data/1ef0723b4/18d72b656e4b4550bc659636140600b6/FLAG01adef94b [2021-12-06 17:24:31,750 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/data/1ef0723b4/18d72b656e4b4550bc659636140600b6 [2021-12-06 17:24:31,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:24:31,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:24:31,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:24:31,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:24:31,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:24:31,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:24:31" (1/1) ... [2021-12-06 17:24:31,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@545adca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:31, skipping insertion in model container [2021-12-06 17:24:31,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:24:31" (1/1) ... [2021-12-06 17:24:31,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:24:31,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:24:32,062 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_f9dddced-488a-41d3-8a49-d1a8aad458fd/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c[65397,65410] [2021-12-06 17:24:32,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:24:32,083 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-06 17:24:32,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:24:32,152 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_f9dddced-488a-41d3-8a49-d1a8aad458fd/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c[65397,65410] [2021-12-06 17:24:32,155 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:24:32,161 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:24:32,216 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_f9dddced-488a-41d3-8a49-d1a8aad458fd/sv-benchmarks/c/openssl/s3_clnt.blast.03.i.cil-1.c[65397,65410] [2021-12-06 17:24:32,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:24:32,231 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:24:32,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:32 WrapperNode [2021-12-06 17:24:32,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:24:32,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:24:32,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:24:32,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:24:32,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:32" (1/1) ... [2021-12-06 17:24:32,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:32" (1/1) ... [2021-12-06 17:24:32,285 INFO L137 Inliner]: procedures = 35, calls = 217, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 689 [2021-12-06 17:24:32,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:24:32,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:24:32,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:24:32,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:24:32,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:32" (1/1) ... [2021-12-06 17:24:32,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:32" (1/1) ... [2021-12-06 17:24:32,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:32" (1/1) ... [2021-12-06 17:24:32,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:32" (1/1) ... [2021-12-06 17:24:32,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:32" (1/1) ... [2021-12-06 17:24:32,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:32" (1/1) ... [2021-12-06 17:24:32,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:32" (1/1) ... [2021-12-06 17:24:32,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:24:32,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:24:32,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:24:32,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:24:32,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:32" (1/1) ... [2021-12-06 17:24:32,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:24:32,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:24:32,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:24:32,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:24:32,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:24:32,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 17:24:32,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 17:24:32,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-06 17:24:32,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 17:24:32,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 17:24:32,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:24:32,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:24:32,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-06 17:24:32,502 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:24:32,503 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:24:32,521 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 17:24:39,461 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-12-06 17:24:39,462 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-12-06 17:24:39,462 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:24:39,468 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:24:39,469 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 17:24:39,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:24:39 BoogieIcfgContainer [2021-12-06 17:24:39,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:24:39,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:24:39,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:24:39,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:24:39,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:24:31" (1/3) ... [2021-12-06 17:24:39,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183085e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:24:39, skipping insertion in model container [2021-12-06 17:24:39,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:24:32" (2/3) ... [2021-12-06 17:24:39,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183085e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:24:39, skipping insertion in model container [2021-12-06 17:24:39,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:24:39" (3/3) ... [2021-12-06 17:24:39,475 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.03.i.cil-1.c [2021-12-06 17:24:39,479 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:24:39,480 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 17:24:39,516 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:24:39,522 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 [2021-12-06 17:24:39,522 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 17:24:39,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:39,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-06 17:24:39,545 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:24:39,546 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:24:39,546 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:24:39,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:24:39,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1457695037, now seen corresponding path program 1 times [2021-12-06 17:24:39,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:24:39,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613825157] [2021-12-06 17:24:39,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:24:39,564 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:24:39,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:24:39,565 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:24:39,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 17:24:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:40,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:24:40,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:24:40,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:24:40,489 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:24:40,489 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:24:40,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613825157] [2021-12-06 17:24:40,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613825157] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:24:40,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:24:40,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:24:40,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229054540] [2021-12-06 17:24:40,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:24:40,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:24:40,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:24:40,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:24:40,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:24:40,516 INFO L87 Difference]: Start difference. First operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:40,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:24:40,603 INFO L93 Difference]: Finished difference Result 369 states and 623 transitions. [2021-12-06 17:24:40,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:24:40,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-06 17:24:40,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:24:40,613 INFO L225 Difference]: With dead ends: 369 [2021-12-06 17:24:40,614 INFO L226 Difference]: Without dead ends: 213 [2021-12-06 17:24:40,616 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 [2021-12-06 17:24:40,619 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 180 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:24:40,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 400 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:24:40,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-12-06 17:24:40,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2021-12-06 17:24:40,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 1.4952830188679245) internal successors, (317), 212 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:40,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 317 transitions. [2021-12-06 17:24:40,658 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 317 transitions. Word has length 24 [2021-12-06 17:24:40,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:24:40,658 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 317 transitions. [2021-12-06 17:24:40,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:40,658 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 317 transitions. [2021-12-06 17:24:40,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-06 17:24:40,660 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:24:40,660 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:24:40,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 17:24:40,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:24:40,863 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:24:40,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:24:40,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1192110763, now seen corresponding path program 1 times [2021-12-06 17:24:40,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:24:40,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982452189] [2021-12-06 17:24:40,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:24:40,869 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:24:40,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:24:40,872 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:24:40,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 17:24:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:41,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 1313 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:24:41,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:24:41,913 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:24:41,913 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:24:41,913 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:24:41,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982452189] [2021-12-06 17:24:41,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982452189] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:24:41,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:24:41,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:24:41,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277362603] [2021-12-06 17:24:41,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:24:41,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:24:41,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:24:41,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:24:41,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:24:41,916 INFO L87 Difference]: Start difference. First operand 213 states and 317 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:43,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:44,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:24:44,002 INFO L93 Difference]: Finished difference Result 417 states and 626 transitions. [2021-12-06 17:24:44,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:24:44,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-12-06 17:24:44,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:24:44,005 INFO L225 Difference]: With dead ends: 417 [2021-12-06 17:24:44,005 INFO L226 Difference]: Without dead ends: 312 [2021-12-06 17:24:44,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:24:44,007 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 123 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:24:44,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 461 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-12-06 17:24:44,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-12-06 17:24:44,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2021-12-06 17:24:44,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 311 states have (on average 1.4887459807073955) internal successors, (463), 311 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:44,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 463 transitions. [2021-12-06 17:24:44,026 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 463 transitions. Word has length 39 [2021-12-06 17:24:44,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:24:44,026 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 463 transitions. [2021-12-06 17:24:44,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:44,027 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 463 transitions. [2021-12-06 17:24:44,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-06 17:24:44,035 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:24:44,035 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:24:44,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 17:24:44,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:24:44,237 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:24:44,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:24:44,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1499463818, now seen corresponding path program 1 times [2021-12-06 17:24:44,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:24:44,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17020340] [2021-12-06 17:24:44,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:24:44,245 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:24:44,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:24:44,249 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:24:44,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 17:24:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:45,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 1378 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:24:45,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:24:45,260 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-06 17:24:45,260 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:24:45,260 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:24:45,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17020340] [2021-12-06 17:24:45,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17020340] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:24:45,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:24:45,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:24:45,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369932620] [2021-12-06 17:24:45,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:24:45,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:24:45,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:24:45,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:24:45,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:24:45,262 INFO L87 Difference]: Start difference. First operand 312 states and 463 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:47,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:47,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:24:47,354 INFO L93 Difference]: Finished difference Result 618 states and 923 transitions. [2021-12-06 17:24:47,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:24:47,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-12-06 17:24:47,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:24:47,358 INFO L225 Difference]: With dead ends: 618 [2021-12-06 17:24:47,358 INFO L226 Difference]: Without dead ends: 414 [2021-12-06 17:24:47,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:24:47,360 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 126 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:24:47,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 468 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-12-06 17:24:47,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-12-06 17:24:47,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2021-12-06 17:24:47,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 413 states have (on average 1.4842615012106537) internal successors, (613), 413 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:47,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 613 transitions. [2021-12-06 17:24:47,380 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 613 transitions. Word has length 57 [2021-12-06 17:24:47,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:24:47,380 INFO L470 AbstractCegarLoop]: Abstraction has 414 states and 613 transitions. [2021-12-06 17:24:47,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:47,381 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 613 transitions. [2021-12-06 17:24:47,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-06 17:24:47,383 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:24:47,384 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:24:47,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-06 17:24:47,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:24:47,586 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:24:47,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:24:47,587 INFO L85 PathProgramCache]: Analyzing trace with hash -817434927, now seen corresponding path program 1 times [2021-12-06 17:24:47,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:24:47,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352906424] [2021-12-06 17:24:47,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:24:47,591 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:24:47,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:24:47,593 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:24:47,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 17:24:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:48,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:24:48,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:24:48,724 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-06 17:24:48,725 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:24:48,725 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:24:48,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352906424] [2021-12-06 17:24:48,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352906424] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:24:48,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:24:48,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:24:48,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911863739] [2021-12-06 17:24:48,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:24:48,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:24:48,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:24:48,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:24:48,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:24:48,727 INFO L87 Difference]: Start difference. First operand 414 states and 613 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:50,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:24:50,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:24:50,814 INFO L93 Difference]: Finished difference Result 821 states and 1222 transitions. [2021-12-06 17:24:50,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:24:50,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-12-06 17:24:50,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:24:50,824 INFO L225 Difference]: With dead ends: 821 [2021-12-06 17:24:50,824 INFO L226 Difference]: Without dead ends: 515 [2021-12-06 17:24:50,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:24:50,827 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 126 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:24:50,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 467 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-12-06 17:24:50,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2021-12-06 17:24:50,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2021-12-06 17:24:50,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 514 states have (on average 1.482490272373541) internal successors, (762), 514 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:50,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 762 transitions. [2021-12-06 17:24:50,850 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 762 transitions. Word has length 77 [2021-12-06 17:24:50,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:24:50,850 INFO L470 AbstractCegarLoop]: Abstraction has 515 states and 762 transitions. [2021-12-06 17:24:50,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:24:50,851 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 762 transitions. [2021-12-06 17:24:50,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 17:24:50,854 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:24:50,855 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:24:50,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-06 17:24:51,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:24:51,057 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:24:51,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:24:51,059 INFO L85 PathProgramCache]: Analyzing trace with hash 922615118, now seen corresponding path program 1 times [2021-12-06 17:24:51,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:24:51,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632703717] [2021-12-06 17:24:51,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:24:51,064 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:24:51,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:24:51,067 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:24:51,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9dddced-488a-41d3-8a49-d1a8aad458fd/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-06 17:24:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:24:52,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 1519 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 17:24:52,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:24:54,931 INFO L354 Elim1Store]: treesize reduction 32, result has 78.5 percent of original size [2021-12-06 17:24:54,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 1482 treesize of output 1090 [2021-12-06 17:24:56,553 INFO L354 Elim1Store]: treesize reduction 1374, result has 25.4 percent of original size [2021-12-06 17:24:56,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 9 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 10 new quantified variables, introduced 18 case distinctions, treesize of input 5024 treesize of output 2308 [2021-12-06 17:24:56,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 2581 treesize of output 2335 [2021-12-06 17:24:56,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 2314 treesize of output 1846 [2021-12-06 17:24:56,725 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 1559 treesize of output 1447 [2021-12-06 17:24:56,934 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:24:56,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1675 treesize of output 1575 [2021-12-06 17:24:57,157 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:24:57,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1385 treesize of output 1209 [2021-12-06 17:24:57,233 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 137 treesize of output 113 [2021-12-06 17:24:57,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,607 INFO L244 Elim1Store]: Index analysis took 304 ms [2021-12-06 17:24:57,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 31 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 87 [2021-12-06 17:24:57,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:57,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,280 INFO L244 Elim1Store]: Index analysis took 319 ms [2021-12-06 17:24:58,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 31 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 111 [2021-12-06 17:24:58,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:24:58,916 INFO L244 Elim1Store]: Index analysis took 273 ms [2021-12-06 17:24:59,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 31 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 111