./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a1fff1f2750aedbe7119b44ad3cdc8a2dbfa05ad8147a422ae9aeb0054d6e253 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:32:50,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:32:50,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:32:50,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:32:50,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:32:50,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:32:50,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:32:50,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:32:50,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:32:50,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:32:50,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:32:50,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:32:50,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:32:50,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:32:50,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:32:50,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:32:50,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:32:50,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:32:50,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:32:50,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:32:50,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:32:50,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:32:50,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:32:50,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:32:50,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:32:50,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:32:50,674 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:32:50,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:32:50,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:32:50,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:32:50,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:32:50,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:32:50,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:32:50,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:32:50,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:32:50,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:32:50,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:32:50,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:32:50,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:32:50,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:32:50,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:32:50,688 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-20 23:32:50,733 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:32:50,734 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:32:50,734 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:32:50,734 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:32:50,741 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:32:50,742 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:32:50,742 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:32:50,742 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:32:50,742 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:32:50,743 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:32:50,744 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:32:50,744 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:32:50,744 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:32:50,744 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:32:50,745 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:32:50,745 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:32:50,745 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:32:50,745 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:32:50,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:32:50,746 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:32:50,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:32:50,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:32:50,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:32:50,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:32:50,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:32:50,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:32:50,748 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:32:50,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:32:50,748 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:32:50,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:32:50,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:32:50,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:32:50,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:32:50,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:32:50,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:32:50,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:32:50,751 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:32:50,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:32:50,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:32:50,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:32:50,751 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:32:50,752 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1fff1f2750aedbe7119b44ad3cdc8a2dbfa05ad8147a422ae9aeb0054d6e253 [2021-11-20 23:32:51,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:32:51,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:32:51,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:32:51,134 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:32:51,135 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:32:51,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c [2021-11-20 23:32:51,208 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/data/835f1fe98/120152f1005449dcbf7d9ca316cfa218/FLAGaf686d661 [2021-11-20 23:32:51,913 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:32:51,914 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c [2021-11-20 23:32:51,943 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/data/835f1fe98/120152f1005449dcbf7d9ca316cfa218/FLAGaf686d661 [2021-11-20 23:32:52,081 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/data/835f1fe98/120152f1005449dcbf7d9ca316cfa218 [2021-11-20 23:32:52,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:32:52,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:32:52,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:32:52,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:32:52,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:32:52,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:32:52" (1/1) ... [2021-11-20 23:32:52,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@375c6172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:52, skipping insertion in model container [2021-11-20 23:32:52,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:32:52" (1/1) ... [2021-11-20 23:32:52,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:32:52,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:32:52,663 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_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c[72913,72926] [2021-11-20 23:32:52,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:32:52,685 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:32:52,789 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_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c[72913,72926] [2021-11-20 23:32:52,793 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:32:52,816 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:32:52,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:52 WrapperNode [2021-11-20 23:32:52,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:32:52,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:32:52,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:32:52,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:32:52,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:52" (1/1) ... [2021-11-20 23:32:52,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:52" (1/1) ... [2021-11-20 23:32:52,949 INFO L137 Inliner]: procedures = 31, calls = 223, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 788 [2021-11-20 23:32:52,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:32:52,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:32:52,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:32:52,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:32:52,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:52" (1/1) ... [2021-11-20 23:32:52,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:52" (1/1) ... [2021-11-20 23:32:52,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:52" (1/1) ... [2021-11-20 23:32:52,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:52" (1/1) ... [2021-11-20 23:32:53,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:52" (1/1) ... [2021-11-20 23:32:53,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:52" (1/1) ... [2021-11-20 23:32:53,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:52" (1/1) ... [2021-11-20 23:32:53,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:32:53,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:32:53,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:32:53,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:32:53,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:52" (1/1) ... [2021-11-20 23:32:53,053 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:32:53,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:53,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:32:53,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:32:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:32:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:32:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:32:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:32:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:32:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:32:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:32:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:32:53,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:32:53,326 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:32:53,327 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:32:53,357 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:32:56,334 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-11-20 23:32:56,334 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-11-20 23:32:56,334 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:32:56,720 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:32:56,720 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 23:32:56,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:32:56 BoogieIcfgContainer [2021-11-20 23:32:56,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:32:56,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:32:56,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:32:56,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:32:56,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:32:52" (1/3) ... [2021-11-20 23:32:56,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34e84833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:32:56, skipping insertion in model container [2021-11-20 23:32:56,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:52" (2/3) ... [2021-11-20 23:32:56,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34e84833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:32:56, skipping insertion in model container [2021-11-20 23:32:56,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:32:56" (3/3) ... [2021-11-20 23:32:56,734 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.01.i.cil-2.c [2021-11-20 23:32:56,742 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:32:56,742 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:32:56,801 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:32:56,816 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 23:32:56,816 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:32:56,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 107 states have (on average 1.7476635514018692) internal successors, (187), 108 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:56,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-20 23:32:56,849 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:56,849 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:56,850 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:32:56,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:56,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1559884611, now seen corresponding path program 1 times [2021-11-20 23:32:56,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:56,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872356278] [2021-11-20 23:32:56,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:56,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:57,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:57,286 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:57,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872356278] [2021-11-20 23:32:57,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872356278] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:57,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:57,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:32:57,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984149212] [2021-11-20 23:32:57,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:57,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:32:57,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:57,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:32:57,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:32:57,330 INFO L87 Difference]: Start difference. First operand has 109 states, 107 states have (on average 1.7476635514018692) internal successors, (187), 108 states have internal predecessors, (187), 0 states have call successors, (0), 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 9.75) 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) [2021-11-20 23:32:59,358 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:32:59,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:59,878 INFO L93 Difference]: Finished difference Result 241 states and 413 transitions. [2021-11-20 23:32:59,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:32:59,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) 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 [2021-11-20 23:32:59,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:59,895 INFO L225 Difference]: With dead ends: 241 [2021-11-20 23:32:59,896 INFO L226 Difference]: Without dead ends: 128 [2021-11-20 23:32:59,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:32:59,902 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 19 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:59,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 393 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 157 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2021-11-20 23:32:59,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-20 23:32:59,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 116. [2021-11-20 23:32:59,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.5391304347826087) internal successors, (177), 115 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:59,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 177 transitions. [2021-11-20 23:32:59,945 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 177 transitions. Word has length 39 [2021-11-20 23:32:59,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:59,946 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 177 transitions. [2021-11-20 23:32:59,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) 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) [2021-11-20 23:32:59,946 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 177 transitions. [2021-11-20 23:32:59,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-20 23:32:59,949 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:59,949 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 23:32:59,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:32:59,950 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:32:59,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:59,950 INFO L85 PathProgramCache]: Analyzing trace with hash 902544904, now seen corresponding path program 1 times [2021-11-20 23:32:59,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:59,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309795650] [2021-11-20 23:32:59,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:59,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:00,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:00,052 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:00,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309795650] [2021-11-20 23:33:00,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309795650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:00,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:00,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:33:00,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779129589] [2021-11-20 23:33:00,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:00,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:00,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:00,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:00,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:00,056 INFO L87 Difference]: Start difference. First operand 116 states and 177 transitions. Second operand has 4 states, 4 states have (on average 12.5) 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) [2021-11-20 23:33:02,068 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:02,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:02,427 INFO L93 Difference]: Finished difference Result 232 states and 348 transitions. [2021-11-20 23:33:02,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:02,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) 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 50 [2021-11-20 23:33:02,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:02,430 INFO L225 Difference]: With dead ends: 232 [2021-11-20 23:33:02,431 INFO L226 Difference]: Without dead ends: 128 [2021-11-20 23:33:02,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:33:02,433 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 19 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:02,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 328 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 145 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:33:02,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-20 23:33:02,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 116. [2021-11-20 23:33:02,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.5304347826086957) internal successors, (176), 115 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:02,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 176 transitions. [2021-11-20 23:33:02,446 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 176 transitions. Word has length 50 [2021-11-20 23:33:02,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:02,447 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 176 transitions. [2021-11-20 23:33:02,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) 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) [2021-11-20 23:33:02,447 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 176 transitions. [2021-11-20 23:33:02,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-20 23:33:02,449 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:02,450 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 23:33:02,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:33:02,450 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:02,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:02,451 INFO L85 PathProgramCache]: Analyzing trace with hash 474744423, now seen corresponding path program 1 times [2021-11-20 23:33:02,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:02,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607036150] [2021-11-20 23:33:02,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:02,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:02,533 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:02,533 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:02,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607036150] [2021-11-20 23:33:02,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607036150] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:02,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:02,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:33:02,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926184516] [2021-11-20 23:33:02,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:02,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:02,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:02,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:02,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:02,536 INFO L87 Difference]: Start difference. First operand 116 states and 176 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:04,549 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:04,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:04,901 INFO L93 Difference]: Finished difference Result 232 states and 347 transitions. [2021-11-20 23:33:04,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:04,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2021-11-20 23:33:04,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:04,904 INFO L225 Difference]: With dead ends: 232 [2021-11-20 23:33:04,904 INFO L226 Difference]: Without dead ends: 128 [2021-11-20 23:33:04,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:33:04,906 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 17 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:04,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 327 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 146 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:33:04,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-20 23:33:04,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 116. [2021-11-20 23:33:04,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.5217391304347827) internal successors, (175), 115 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:04,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 175 transitions. [2021-11-20 23:33:04,917 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 175 transitions. Word has length 51 [2021-11-20 23:33:04,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:04,918 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 175 transitions. [2021-11-20 23:33:04,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:04,918 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 175 transitions. [2021-11-20 23:33:04,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-20 23:33:04,920 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:04,920 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:04,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 23:33:04,921 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:04,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:04,922 INFO L85 PathProgramCache]: Analyzing trace with hash -840902490, now seen corresponding path program 1 times [2021-11-20 23:33:04,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:04,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230034313] [2021-11-20 23:33:04,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:04,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:05,045 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:05,047 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:05,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230034313] [2021-11-20 23:33:05,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230034313] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:05,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:05,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:33:05,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198679] [2021-11-20 23:33:05,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:05,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:05,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:05,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:05,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:05,053 INFO L87 Difference]: Start difference. First operand 116 states and 175 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:07,065 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:07,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:07,393 INFO L93 Difference]: Finished difference Result 232 states and 346 transitions. [2021-11-20 23:33:07,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:07,394 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2021-11-20 23:33:07,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:07,395 INFO L225 Difference]: With dead ends: 232 [2021-11-20 23:33:07,395 INFO L226 Difference]: Without dead ends: 128 [2021-11-20 23:33:07,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:33:07,397 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 12 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:07,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 327 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 146 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:33:07,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-20 23:33:07,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 116. [2021-11-20 23:33:07,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.5130434782608695) internal successors, (174), 115 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:07,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 174 transitions. [2021-11-20 23:33:07,408 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 174 transitions. Word has length 51 [2021-11-20 23:33:07,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:07,408 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 174 transitions. [2021-11-20 23:33:07,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:07,409 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 174 transitions. [2021-11-20 23:33:07,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-20 23:33:07,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:07,411 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:07,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:33:07,411 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:07,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:07,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1676704038, now seen corresponding path program 1 times [2021-11-20 23:33:07,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:07,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805873588] [2021-11-20 23:33:07,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:07,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:07,482 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:07,482 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:07,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805873588] [2021-11-20 23:33:07,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805873588] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:07,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:07,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:33:07,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885974048] [2021-11-20 23:33:07,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:07,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:07,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:07,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:07,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:07,485 INFO L87 Difference]: Start difference. First operand 116 states and 174 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:09,498 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:09,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:09,826 INFO L93 Difference]: Finished difference Result 232 states and 345 transitions. [2021-11-20 23:33:09,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:09,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2021-11-20 23:33:09,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:09,829 INFO L225 Difference]: With dead ends: 232 [2021-11-20 23:33:09,829 INFO L226 Difference]: Without dead ends: 128 [2021-11-20 23:33:09,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:33:09,830 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 10 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:09,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 328 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 145 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:33:09,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-20 23:33:09,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 116. [2021-11-20 23:33:09,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.5043478260869565) internal successors, (173), 115 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:09,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 173 transitions. [2021-11-20 23:33:09,839 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 173 transitions. Word has length 51 [2021-11-20 23:33:09,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:09,840 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 173 transitions. [2021-11-20 23:33:09,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:09,840 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 173 transitions. [2021-11-20 23:33:09,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-20 23:33:09,842 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:09,842 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 23:33:09,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 23:33:09,842 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:09,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:09,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1966166027, now seen corresponding path program 1 times [2021-11-20 23:33:09,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:09,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732065864] [2021-11-20 23:33:09,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:09,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:09,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:09,907 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:09,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732065864] [2021-11-20 23:33:09,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732065864] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:09,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:09,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:33:09,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074903946] [2021-11-20 23:33:09,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:09,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:09,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:09,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:09,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:09,910 INFO L87 Difference]: Start difference. First operand 116 states and 173 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:11,920 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:12,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:12,292 INFO L93 Difference]: Finished difference Result 232 states and 344 transitions. [2021-11-20 23:33:12,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:12,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2021-11-20 23:33:12,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:12,295 INFO L225 Difference]: With dead ends: 232 [2021-11-20 23:33:12,296 INFO L226 Difference]: Without dead ends: 128 [2021-11-20 23:33:12,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:33:12,297 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 14 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:12,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 327 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 146 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 23:33:12,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-20 23:33:12,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 116. [2021-11-20 23:33:12,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.4956521739130435) internal successors, (172), 115 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:12,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 172 transitions. [2021-11-20 23:33:12,305 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 172 transitions. Word has length 52 [2021-11-20 23:33:12,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:12,305 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 172 transitions. [2021-11-20 23:33:12,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:12,306 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 172 transitions. [2021-11-20 23:33:12,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-20 23:33:12,306 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:12,307 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:12,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 23:33:12,307 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:12,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:12,308 INFO L85 PathProgramCache]: Analyzing trace with hash 700599156, now seen corresponding path program 1 times [2021-11-20 23:33:12,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:12,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853991704] [2021-11-20 23:33:12,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:12,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:12,399 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:12,399 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:12,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853991704] [2021-11-20 23:33:12,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853991704] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:12,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:12,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:33:12,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027212120] [2021-11-20 23:33:12,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:12,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:12,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:12,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:12,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:12,403 INFO L87 Difference]: Start difference. First operand 116 states and 172 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:14,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:14,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:14,752 INFO L93 Difference]: Finished difference Result 230 states and 341 transitions. [2021-11-20 23:33:14,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:14,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2021-11-20 23:33:14,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:14,755 INFO L225 Difference]: With dead ends: 230 [2021-11-20 23:33:14,755 INFO L226 Difference]: Without dead ends: 126 [2021-11-20 23:33:14,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:33:14,756 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 9 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:14,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 331 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 142 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:33:14,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-11-20 23:33:14,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 116. [2021-11-20 23:33:14,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.4869565217391305) internal successors, (171), 115 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:14,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 171 transitions. [2021-11-20 23:33:14,762 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 171 transitions. Word has length 52 [2021-11-20 23:33:14,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:14,763 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 171 transitions. [2021-11-20 23:33:14,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:14,763 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 171 transitions. [2021-11-20 23:33:14,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-20 23:33:14,765 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:14,766 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 23:33:14,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 23:33:14,766 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:14,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:14,767 INFO L85 PathProgramCache]: Analyzing trace with hash 939784044, now seen corresponding path program 1 times [2021-11-20 23:33:14,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:14,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933741485] [2021-11-20 23:33:14,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:14,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:14,833 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:14,834 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:14,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933741485] [2021-11-20 23:33:14,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933741485] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:14,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:14,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:33:14,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764120252] [2021-11-20 23:33:14,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:14,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:14,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:14,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:14,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:14,837 INFO L87 Difference]: Start difference. First operand 116 states and 171 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:16,847 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:17,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:17,171 INFO L93 Difference]: Finished difference Result 230 states and 340 transitions. [2021-11-20 23:33:17,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:17,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2021-11-20 23:33:17,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:17,173 INFO L225 Difference]: With dead ends: 230 [2021-11-20 23:33:17,173 INFO L226 Difference]: Without dead ends: 126 [2021-11-20 23:33:17,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:33:17,175 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 11 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:17,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 331 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 142 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:33:17,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-11-20 23:33:17,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 116. [2021-11-20 23:33:17,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.4782608695652173) internal successors, (170), 115 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:17,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 170 transitions. [2021-11-20 23:33:17,181 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 170 transitions. Word has length 53 [2021-11-20 23:33:17,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:17,182 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 170 transitions. [2021-11-20 23:33:17,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:17,182 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 170 transitions. [2021-11-20 23:33:17,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-20 23:33:17,183 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:17,183 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 23:33:17,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 23:33:17,183 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:17,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:17,184 INFO L85 PathProgramCache]: Analyzing trace with hash 2094685722, now seen corresponding path program 1 times [2021-11-20 23:33:17,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:17,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197262867] [2021-11-20 23:33:17,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:17,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:17,290 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:17,290 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:17,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197262867] [2021-11-20 23:33:17,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197262867] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:17,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:17,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:33:17,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386570014] [2021-11-20 23:33:17,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:17,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:17,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:17,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:17,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:17,293 INFO L87 Difference]: Start difference. First operand 116 states and 170 transitions. Second operand has 4 states, 4 states have (on average 13.5) 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) [2021-11-20 23:33:19,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:19,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:19,557 INFO L93 Difference]: Finished difference Result 222 states and 329 transitions. [2021-11-20 23:33:19,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:19,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) 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 54 [2021-11-20 23:33:19,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:19,559 INFO L225 Difference]: With dead ends: 222 [2021-11-20 23:33:19,560 INFO L226 Difference]: Without dead ends: 118 [2021-11-20 23:33:19,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:33:19,561 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 5 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:19,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 341 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 132 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-20 23:33:19,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-20 23:33:19,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 116. [2021-11-20 23:33:19,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.4695652173913043) internal successors, (169), 115 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:19,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 169 transitions. [2021-11-20 23:33:19,567 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 169 transitions. Word has length 54 [2021-11-20 23:33:19,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:19,567 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 169 transitions. [2021-11-20 23:33:19,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) 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) [2021-11-20 23:33:19,568 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 169 transitions. [2021-11-20 23:33:19,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-20 23:33:19,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:19,569 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 23:33:19,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 23:33:19,569 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:19,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:19,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1831104607, now seen corresponding path program 1 times [2021-11-20 23:33:19,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:19,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196764617] [2021-11-20 23:33:19,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:19,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:19,640 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:19,641 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:19,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196764617] [2021-11-20 23:33:19,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196764617] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:19,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:19,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:33:19,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158021837] [2021-11-20 23:33:19,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:19,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:19,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:19,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:19,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:19,643 INFO L87 Difference]: Start difference. First operand 116 states and 169 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 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) [2021-11-20 23:33:21,654 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:21,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:21,981 INFO L93 Difference]: Finished difference Result 254 states and 377 transitions. [2021-11-20 23:33:21,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:21,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 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 54 [2021-11-20 23:33:21,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:21,996 INFO L225 Difference]: With dead ends: 254 [2021-11-20 23:33:21,997 INFO L226 Difference]: Without dead ends: 150 [2021-11-20 23:33:21,997 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 [2021-11-20 23:33:21,998 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 21 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:21,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 336 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 161 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:33:21,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-20 23:33:22,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 136. [2021-11-20 23:33:22,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.5037037037037038) internal successors, (203), 135 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:22,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 203 transitions. [2021-11-20 23:33:22,004 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 203 transitions. Word has length 54 [2021-11-20 23:33:22,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:22,005 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 203 transitions. [2021-11-20 23:33:22,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 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) [2021-11-20 23:33:22,005 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 203 transitions. [2021-11-20 23:33:22,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-20 23:33:22,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:22,007 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:22,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 23:33:22,007 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:22,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:22,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1895283548, now seen corresponding path program 1 times [2021-11-20 23:33:22,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:22,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971802057] [2021-11-20 23:33:22,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:22,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:22,078 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:22,078 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:22,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971802057] [2021-11-20 23:33:22,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971802057] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:22,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:22,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:33:22,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96478965] [2021-11-20 23:33:22,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:22,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:22,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:22,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:22,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:22,081 INFO L87 Difference]: Start difference. First operand 136 states and 203 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:24,091 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:24,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:24,417 INFO L93 Difference]: Finished difference Result 274 states and 410 transitions. [2021-11-20 23:33:24,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:24,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2021-11-20 23:33:24,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:24,419 INFO L225 Difference]: With dead ends: 274 [2021-11-20 23:33:24,419 INFO L226 Difference]: Without dead ends: 150 [2021-11-20 23:33:24,420 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 [2021-11-20 23:33:24,421 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 32 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:24,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 338 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 158 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:33:24,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-20 23:33:24,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 136. [2021-11-20 23:33:24,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.4962962962962962) internal successors, (202), 135 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:24,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 202 transitions. [2021-11-20 23:33:24,427 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 202 transitions. Word has length 65 [2021-11-20 23:33:24,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:24,427 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 202 transitions. [2021-11-20 23:33:24,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:24,428 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 202 transitions. [2021-11-20 23:33:24,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 23:33:24,429 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:24,429 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:24,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 23:33:24,429 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:24,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:24,430 INFO L85 PathProgramCache]: Analyzing trace with hash -358591669, now seen corresponding path program 1 times [2021-11-20 23:33:24,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:24,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777555797] [2021-11-20 23:33:24,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:24,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:24,533 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 23:33:24,534 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:24,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777555797] [2021-11-20 23:33:24,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777555797] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:24,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:24,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:33:24,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458169112] [2021-11-20 23:33:24,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:24,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:33:24,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:24,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:33:24,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:33:24,536 INFO L87 Difference]: Start difference. First operand 136 states and 202 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:26,546 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:27,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:27,025 INFO L93 Difference]: Finished difference Result 277 states and 415 transitions. [2021-11-20 23:33:27,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:33:27,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2021-11-20 23:33:27,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:27,028 INFO L225 Difference]: With dead ends: 277 [2021-11-20 23:33:27,028 INFO L226 Difference]: Without dead ends: 153 [2021-11-20 23:33:27,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-20 23:33:27,029 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 117 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:27,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 237 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 265 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2021-11-20 23:33:27,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-11-20 23:33:27,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 152. [2021-11-20 23:33:27,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.4701986754966887) internal successors, (222), 151 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:27,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 222 transitions. [2021-11-20 23:33:27,037 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 222 transitions. Word has length 66 [2021-11-20 23:33:27,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:27,037 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 222 transitions. [2021-11-20 23:33:27,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:27,038 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 222 transitions. [2021-11-20 23:33:27,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 23:33:27,039 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:27,039 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-20 23:33:27,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 23:33:27,039 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:27,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:27,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1674238582, now seen corresponding path program 1 times [2021-11-20 23:33:27,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:27,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841954619] [2021-11-20 23:33:27,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:27,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:27,121 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:27,121 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:27,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841954619] [2021-11-20 23:33:27,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841954619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:27,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:27,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:33:27,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500224973] [2021-11-20 23:33:27,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:27,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:27,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:27,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:27,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:27,124 INFO L87 Difference]: Start difference. First operand 152 states and 222 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:29,134 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:29,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:29,424 INFO L93 Difference]: Finished difference Result 306 states and 447 transitions. [2021-11-20 23:33:29,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:29,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2021-11-20 23:33:29,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:29,427 INFO L225 Difference]: With dead ends: 306 [2021-11-20 23:33:29,428 INFO L226 Difference]: Without dead ends: 166 [2021-11-20 23:33:29,428 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 [2021-11-20 23:33:29,430 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 26 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:29,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 338 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 158 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:33:29,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-20 23:33:29,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 152. [2021-11-20 23:33:29,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.4635761589403973) internal successors, (221), 151 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:29,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 221 transitions. [2021-11-20 23:33:29,442 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 221 transitions. Word has length 66 [2021-11-20 23:33:29,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:29,442 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 221 transitions. [2021-11-20 23:33:29,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:29,443 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 221 transitions. [2021-11-20 23:33:29,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 23:33:29,444 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:29,444 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:29,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 23:33:29,449 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:29,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:29,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1784927166, now seen corresponding path program 1 times [2021-11-20 23:33:29,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:29,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865688536] [2021-11-20 23:33:29,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:29,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:29,538 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:29,538 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:29,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865688536] [2021-11-20 23:33:29,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865688536] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:29,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:29,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:33:29,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909597859] [2021-11-20 23:33:29,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:29,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:29,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:29,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:29,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:29,540 INFO L87 Difference]: Start difference. First operand 152 states and 221 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:31,551 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:31,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:31,877 INFO L93 Difference]: Finished difference Result 306 states and 445 transitions. [2021-11-20 23:33:31,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:31,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2021-11-20 23:33:31,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:31,879 INFO L225 Difference]: With dead ends: 306 [2021-11-20 23:33:31,879 INFO L226 Difference]: Without dead ends: 166 [2021-11-20 23:33:31,880 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 [2021-11-20 23:33:31,880 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 24 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:31,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 339 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 157 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:33:31,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-20 23:33:31,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 152. [2021-11-20 23:33:31,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.4569536423841059) internal successors, (220), 151 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:31,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 220 transitions. [2021-11-20 23:33:31,887 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 220 transitions. Word has length 66 [2021-11-20 23:33:31,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:31,888 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 220 transitions. [2021-11-20 23:33:31,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:31,888 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 220 transitions. [2021-11-20 23:33:31,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-20 23:33:31,889 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:31,889 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:31,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 23:33:31,890 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:31,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:31,890 INFO L85 PathProgramCache]: Analyzing trace with hash -748945690, now seen corresponding path program 1 times [2021-11-20 23:33:31,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:31,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265972867] [2021-11-20 23:33:31,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:31,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:31,953 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:31,953 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:31,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265972867] [2021-11-20 23:33:31,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265972867] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:31,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:31,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:33:31,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952326386] [2021-11-20 23:33:31,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:31,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:31,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:31,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:31,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:31,956 INFO L87 Difference]: Start difference. First operand 152 states and 220 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:33,968 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:34,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:34,253 INFO L93 Difference]: Finished difference Result 306 states and 443 transitions. [2021-11-20 23:33:34,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:34,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2021-11-20 23:33:34,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:34,255 INFO L225 Difference]: With dead ends: 306 [2021-11-20 23:33:34,255 INFO L226 Difference]: Without dead ends: 166 [2021-11-20 23:33:34,256 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 [2021-11-20 23:33:34,256 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 29 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:34,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 338 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 158 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:33:34,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-20 23:33:34,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 152. [2021-11-20 23:33:34,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.4503311258278146) internal successors, (219), 151 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:34,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 219 transitions. [2021-11-20 23:33:34,264 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 219 transitions. Word has length 67 [2021-11-20 23:33:34,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:34,265 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 219 transitions. [2021-11-20 23:33:34,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:34,265 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 219 transitions. [2021-11-20 23:33:34,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-20 23:33:34,266 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:34,266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:34,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 23:33:34,267 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:34,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:34,267 INFO L85 PathProgramCache]: Analyzing trace with hash 636984080, now seen corresponding path program 1 times [2021-11-20 23:33:34,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:34,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053471030] [2021-11-20 23:33:34,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:34,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:34,327 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:34,327 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:34,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053471030] [2021-11-20 23:33:34,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053471030] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:34,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:34,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:33:34,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69991809] [2021-11-20 23:33:34,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:34,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:34,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:34,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:34,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:34,330 INFO L87 Difference]: Start difference. First operand 152 states and 219 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:36,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:36,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:36,674 INFO L93 Difference]: Finished difference Result 304 states and 439 transitions. [2021-11-20 23:33:36,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:36,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2021-11-20 23:33:36,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:36,677 INFO L225 Difference]: With dead ends: 304 [2021-11-20 23:33:36,678 INFO L226 Difference]: Without dead ends: 164 [2021-11-20 23:33:36,678 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 [2021-11-20 23:33:36,679 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 23 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:36,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 342 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 154 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:33:36,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-11-20 23:33:36,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 152. [2021-11-20 23:33:36,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.4437086092715232) internal successors, (218), 151 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:36,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 218 transitions. [2021-11-20 23:33:36,687 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 218 transitions. Word has length 67 [2021-11-20 23:33:36,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:36,688 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 218 transitions. [2021-11-20 23:33:36,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:36,688 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 218 transitions. [2021-11-20 23:33:36,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-20 23:33:36,689 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:36,689 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:36,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 23:33:36,690 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:36,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:36,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1016210592, now seen corresponding path program 1 times [2021-11-20 23:33:36,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:36,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572864126] [2021-11-20 23:33:36,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:36,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:36,752 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:36,753 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:36,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572864126] [2021-11-20 23:33:36,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572864126] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:36,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:36,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:33:36,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730103880] [2021-11-20 23:33:36,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:36,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:36,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:36,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:36,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:36,755 INFO L87 Difference]: Start difference. First operand 152 states and 218 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:38,766 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:39,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:39,083 INFO L93 Difference]: Finished difference Result 304 states and 437 transitions. [2021-11-20 23:33:39,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:39,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2021-11-20 23:33:39,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:39,086 INFO L225 Difference]: With dead ends: 304 [2021-11-20 23:33:39,086 INFO L226 Difference]: Without dead ends: 164 [2021-11-20 23:33:39,086 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 [2021-11-20 23:33:39,087 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 26 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:39,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 342 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 154 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:33:39,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-11-20 23:33:39,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 152. [2021-11-20 23:33:39,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.4370860927152318) internal successors, (217), 151 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) [2021-11-20 23:33:39,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 217 transitions. [2021-11-20 23:33:39,095 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 217 transitions. Word has length 68 [2021-11-20 23:33:39,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:39,116 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 217 transitions. [2021-11-20 23:33:39,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:39,116 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 217 transitions. [2021-11-20 23:33:39,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-20 23:33:39,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:39,117 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 23:33:39,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 23:33:39,117 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:39,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:39,118 INFO L85 PathProgramCache]: Analyzing trace with hash -158550143, now seen corresponding path program 1 times [2021-11-20 23:33:39,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:39,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040464648] [2021-11-20 23:33:39,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:39,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:39,178 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:39,178 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:39,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040464648] [2021-11-20 23:33:39,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040464648] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:39,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:39,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:33:39,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479641582] [2021-11-20 23:33:39,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:39,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:39,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:39,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:39,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:39,181 INFO L87 Difference]: Start difference. First operand 152 states and 217 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:41,191 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:41,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:41,475 INFO L93 Difference]: Finished difference Result 304 states and 435 transitions. [2021-11-20 23:33:41,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:41,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2021-11-20 23:33:41,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:41,478 INFO L225 Difference]: With dead ends: 304 [2021-11-20 23:33:41,478 INFO L226 Difference]: Without dead ends: 164 [2021-11-20 23:33:41,478 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 [2021-11-20 23:33:41,479 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 24 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:41,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 342 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 154 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:33:41,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-11-20 23:33:41,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 152. [2021-11-20 23:33:41,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.4304635761589404) internal successors, (216), 151 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:41,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 216 transitions. [2021-11-20 23:33:41,487 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 216 transitions. Word has length 69 [2021-11-20 23:33:41,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:41,487 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 216 transitions. [2021-11-20 23:33:41,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:41,488 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 216 transitions. [2021-11-20 23:33:41,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-20 23:33:41,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:41,489 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:41,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 23:33:41,489 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:41,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:41,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1212057819, now seen corresponding path program 1 times [2021-11-20 23:33:41,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:41,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796982208] [2021-11-20 23:33:41,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:41,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:41,556 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:41,556 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:41,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796982208] [2021-11-20 23:33:41,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796982208] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:41,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:41,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:33:41,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173912476] [2021-11-20 23:33:41,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:41,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:33:41,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:41,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:33:41,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:33:41,559 INFO L87 Difference]: Start difference. First operand 152 states and 216 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:43,569 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:43,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:43,879 INFO L93 Difference]: Finished difference Result 296 states and 424 transitions. [2021-11-20 23:33:43,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:33:43,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2021-11-20 23:33:43,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:43,882 INFO L225 Difference]: With dead ends: 296 [2021-11-20 23:33:43,882 INFO L226 Difference]: Without dead ends: 156 [2021-11-20 23:33:43,882 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 [2021-11-20 23:33:43,883 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 18 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:43,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 350 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 146 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:33:43,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-11-20 23:33:43,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 152. [2021-11-20 23:33:43,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.423841059602649) internal successors, (215), 151 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:43,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 215 transitions. [2021-11-20 23:33:43,890 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 215 transitions. Word has length 70 [2021-11-20 23:33:43,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:43,890 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 215 transitions. [2021-11-20 23:33:43,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:43,890 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 215 transitions. [2021-11-20 23:33:43,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-20 23:33:43,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:43,892 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 23:33:43,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 23:33:43,892 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:43,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:43,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1489574510, now seen corresponding path program 1 times [2021-11-20 23:33:43,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:43,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903998177] [2021-11-20 23:33:43,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:43,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:43,961 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:43,961 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:43,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903998177] [2021-11-20 23:33:43,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903998177] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:33:43,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972019599] [2021-11-20 23:33:43,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:43,962 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:33:43,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:33:43,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:33:43,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:33:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:44,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 23:33:44,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:33:44,401 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:44,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:33:44,703 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-20 23:33:44,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972019599] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 23:33:44,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:33:44,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4] total 5 [2021-11-20 23:33:44,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788139042] [2021-11-20 23:33:44,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:44,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:33:44,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:44,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:33:44,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:33:44,706 INFO L87 Difference]: Start difference. First operand 152 states and 215 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 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) [2021-11-20 23:33:46,716 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:46,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:46,851 INFO L93 Difference]: Finished difference Result 291 states and 415 transitions. [2021-11-20 23:33:46,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:33:46,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 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 72 [2021-11-20 23:33:46,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:46,854 INFO L225 Difference]: With dead ends: 291 [2021-11-20 23:33:46,854 INFO L226 Difference]: Without dead ends: 289 [2021-11-20 23:33:46,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:33:46,855 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 109 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:46,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 278 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-20 23:33:46,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-11-20 23:33:46,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 286. [2021-11-20 23:33:46,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 285 states have (on average 1.4421052631578948) internal successors, (411), 285 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:46,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 411 transitions. [2021-11-20 23:33:46,870 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 411 transitions. Word has length 72 [2021-11-20 23:33:46,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:46,870 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 411 transitions. [2021-11-20 23:33:46,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 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) [2021-11-20 23:33:46,871 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 411 transitions. [2021-11-20 23:33:46,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-20 23:33:46,871 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:46,872 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 23:33:46,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:33:47,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:33:47,087 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:47,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:47,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1067830370, now seen corresponding path program 1 times [2021-11-20 23:33:47,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:47,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923155005] [2021-11-20 23:33:47,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:47,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:47,186 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:47,186 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:47,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923155005] [2021-11-20 23:33:47,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923155005] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:33:47,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751557552] [2021-11-20 23:33:47,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:47,187 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:33:47,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:33:47,191 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:33:47,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:33:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:47,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:33:47,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:33:47,592 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:33:47,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:33:47,877 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-20 23:33:47,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751557552] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 23:33:47,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:33:47,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4] total 5 [2021-11-20 23:33:47,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079851222] [2021-11-20 23:33:47,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:47,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:33:47,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:47,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:33:47,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:33:47,881 INFO L87 Difference]: Start difference. First operand 286 states and 411 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:49,892 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:50,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:50,053 INFO L93 Difference]: Finished difference Result 558 states and 807 transitions. [2021-11-20 23:33:50,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:33:50,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 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 73 [2021-11-20 23:33:50,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:50,058 INFO L225 Difference]: With dead ends: 558 [2021-11-20 23:33:50,058 INFO L226 Difference]: Without dead ends: 556 [2021-11-20 23:33:50,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:33:50,059 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 107 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:50,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 278 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-20 23:33:50,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2021-11-20 23:33:50,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 550. [2021-11-20 23:33:50,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 549 states have (on average 1.4571948998178506) internal successors, (800), 549 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:50,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 800 transitions. [2021-11-20 23:33:50,088 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 800 transitions. Word has length 73 [2021-11-20 23:33:50,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:50,089 INFO L470 AbstractCegarLoop]: Abstraction has 550 states and 800 transitions. [2021-11-20 23:33:50,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:50,089 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 800 transitions. [2021-11-20 23:33:50,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-20 23:33:50,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:50,091 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:50,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:33:50,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:33:50,307 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:50,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:50,307 INFO L85 PathProgramCache]: Analyzing trace with hash -2023395411, now seen corresponding path program 1 times [2021-11-20 23:33:50,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:50,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791445665] [2021-11-20 23:33:50,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:50,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:50,488 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-20 23:33:50,488 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:50,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791445665] [2021-11-20 23:33:50,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791445665] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:50,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:50,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 23:33:50,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629692990] [2021-11-20 23:33:50,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:50,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:33:50,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:50,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:33:50,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:33:50,492 INFO L87 Difference]: Start difference. First operand 550 states and 800 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 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) [2021-11-20 23:33:52,502 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:53,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:53,313 INFO L93 Difference]: Finished difference Result 1452 states and 2134 transitions. [2021-11-20 23:33:53,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:33:53,314 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 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 107 [2021-11-20 23:33:53,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:53,320 INFO L225 Difference]: With dead ends: 1452 [2021-11-20 23:33:53,320 INFO L226 Difference]: Without dead ends: 914 [2021-11-20 23:33:53,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:33:53,322 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 104 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:53,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 466 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2021-11-20 23:33:53,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2021-11-20 23:33:53,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 698. [2021-11-20 23:33:53,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 697 states have (on average 1.5322812051649928) internal successors, (1068), 697 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:53,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1068 transitions. [2021-11-20 23:33:53,355 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1068 transitions. Word has length 107 [2021-11-20 23:33:53,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:53,356 INFO L470 AbstractCegarLoop]: Abstraction has 698 states and 1068 transitions. [2021-11-20 23:33:53,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 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) [2021-11-20 23:33:53,356 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1068 transitions. [2021-11-20 23:33:53,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-20 23:33:53,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:53,358 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:53,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-20 23:33:53,359 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:53,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:53,360 INFO L85 PathProgramCache]: Analyzing trace with hash -222681266, now seen corresponding path program 1 times [2021-11-20 23:33:53,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:53,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492727114] [2021-11-20 23:33:53,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:53,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:53,482 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-20 23:33:53,482 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:53,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492727114] [2021-11-20 23:33:53,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492727114] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:53,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:33:53,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 23:33:53,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706914271] [2021-11-20 23:33:53,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:53,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:33:53,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:53,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:33:53,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:33:53,485 INFO L87 Difference]: Start difference. First operand 698 states and 1068 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:55,496 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:33:56,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:56,141 INFO L93 Difference]: Finished difference Result 1596 states and 2394 transitions. [2021-11-20 23:33:56,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:33:56,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 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 [2021-11-20 23:33:56,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:56,148 INFO L225 Difference]: With dead ends: 1596 [2021-11-20 23:33:56,148 INFO L226 Difference]: Without dead ends: 910 [2021-11-20 23:33:56,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:33:56,151 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 195 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:56,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 381 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 360 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2021-11-20 23:33:56,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2021-11-20 23:33:56,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 702. [2021-11-20 23:33:56,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 701 states have (on average 1.529243937232525) internal successors, (1072), 701 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:56,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 1072 transitions. [2021-11-20 23:33:56,183 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 1072 transitions. Word has length 108 [2021-11-20 23:33:56,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:56,184 INFO L470 AbstractCegarLoop]: Abstraction has 702 states and 1072 transitions. [2021-11-20 23:33:56,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:33:56,184 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 1072 transitions. [2021-11-20 23:33:56,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-20 23:33:56,186 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:56,186 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:56,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-20 23:33:56,187 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:56,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:56,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1574306766, now seen corresponding path program 1 times [2021-11-20 23:33:56,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:56,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363551960] [2021-11-20 23:33:56,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:56,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 23:33:56,730 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 23:33:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 23:33:57,172 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-20 23:33:57,173 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 23:33:57,174 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 23:33:57,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-20 23:33:57,179 INFO L732 BasicCegarLoop]: Path program 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] [2021-11-20 23:33:57,182 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 23:33:57,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:33:57 BoogieIcfgContainer [2021-11-20 23:33:57,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 23:33:57,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 23:33:57,356 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 23:33:57,356 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 23:33:57,356 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:32:56" (3/4) ... [2021-11-20 23:33:57,359 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 23:33:57,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 23:33:57,360 INFO L158 Benchmark]: Toolchain (without parser) took 65274.46ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 93.7MB in the beginning and 106.2MB in the end (delta: -12.5MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2021-11-20 23:33:57,360 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 134.2MB. Free memory is still 112.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:33:57,361 INFO L158 Benchmark]: CACSL2BoogieTranslator took 730.08ms. Allocated memory is still 134.2MB. Free memory was 93.4MB in the beginning and 88.2MB in the end (delta: 5.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-20 23:33:57,361 INFO L158 Benchmark]: Boogie Procedure Inliner took 126.92ms. Allocated memory is still 134.2MB. Free memory was 88.2MB in the beginning and 83.2MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 23:33:57,361 INFO L158 Benchmark]: Boogie Preprocessor took 94.15ms. Allocated memory is still 134.2MB. Free memory was 83.2MB in the beginning and 76.1MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 23:33:57,362 INFO L158 Benchmark]: RCFGBuilder took 3678.12ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 76.1MB in the beginning and 100.5MB in the end (delta: -24.4MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2021-11-20 23:33:57,362 INFO L158 Benchmark]: TraceAbstraction took 60628.51ms. Allocated memory is still 188.7MB. Free memory was 100.5MB in the beginning and 106.2MB in the end (delta: -5.7MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. [2021-11-20 23:33:57,362 INFO L158 Benchmark]: Witness Printer took 4.11ms. Allocated memory is still 188.7MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:33:57,364 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 134.2MB. Free memory is still 112.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 730.08ms. Allocated memory is still 134.2MB. Free memory was 93.4MB in the beginning and 88.2MB in the end (delta: 5.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 126.92ms. Allocated memory is still 134.2MB. Free memory was 88.2MB in the beginning and 83.2MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.15ms. Allocated memory is still 134.2MB. Free memory was 83.2MB in the beginning and 76.1MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 3678.12ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 76.1MB in the beginning and 100.5MB in the end (delta: -24.4MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. * TraceAbstraction took 60628.51ms. Allocated memory is still 188.7MB. Free memory was 100.5MB in the beginning and 106.2MB in the end (delta: -5.7MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. * Witness Printer took 4.11ms. Allocated memory is still 188.7MB. Free memory is still 106.2MB. There was no memory consumed. 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: 1737]: 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 1151. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_server_data ; [L1077] SSL *s ; [L1078] int tmp ; [L1082] s = malloc(sizeof(SSL)) [L1083] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1084] s->ctx = malloc(sizeof(SSL_CTX)) [L1085] s->session = malloc(sizeof(SSL_SESSION)) [L1086] s->state = 8464 [L1088] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1089] s->options = __VERIFIER_nondet_ulong() [L1090] s->verify_mode = __VERIFIER_nondet_int() [L1091] EXPR s->session [L1091] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1093] EXPR s->s3 [L1093] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1095] EXPR s->s3 [L1095] EXPR (s->s3)->tmp.new_cipher [L1095] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1096] COND FALSE !(__VERIFIER_nondet_int()) [L1102] s->cert = malloc(sizeof(struct cert_st)) [L1103] EXPR s->cert [L1103] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1106] CALL ssl3_accept(s) [L1112] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1113] unsigned long l ; [L1114] unsigned long Time ; [L1115] unsigned long tmp = __VERIFIER_nondet_long() ; [L1116] void (*cb)() ; [L1117] long num1 ; [L1118] int ret ; [L1119] int new_state ; [L1120] int state ; [L1121] int skip ; [L1122] int got_new_session ; [L1123] int tmp___1 = __VERIFIER_nondet_int() ; [L1124] int tmp___2 = __VERIFIER_nondet_int() ; [L1125] int tmp___3 ; [L1126] int tmp___4 ; [L1127] int tmp___5 ; [L1128] int tmp___6 ; [L1129] int tmp___7 ; [L1130] long tmp___8 = __VERIFIER_nondet_long() ; [L1131] int tmp___9 ; [L1132] int tmp___10 ; [L1133] int blastFlag ; [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] Time = tmp [L1141] cb = (void (*)())((void *)0) [L1142] ret = -1 [L1143] skip = 0 [L1144] got_new_session = 0 [L1145] EXPR s->info_callback [L1145] COND FALSE !((unsigned long )s->info_callback != (unsigned long )((void *)0)) [L1150] EXPR s->in_handshake [L1150] s->in_handshake += 1 [L1151] COND FALSE !(tmp___1 & 12288) [L1160] EXPR s->cert VAL [={0:0}, blastFlag=0, buf={0:-5}, got_new_session=0, init=1, ret=-1, s={-14:0}, s={-14:0}, s->cert={-4294967295:0}, s->info_callback={4294967337:4294967321}, skip=0, SSLv3_server_data={4:0}, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1160] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1166] COND TRUE 1 [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [={0:0}, blastFlag=0, buf={0:-5}, got_new_session=0, init=1, ret=-1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [={0:0}, blastFlag=0, buf={0:-5}, got_new_session=0, init=1, ret=-1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [={0:0}, blastFlag=0, buf={0:-5}, got_new_session=0, init=1, ret=-1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [={0:0}, blastFlag=0, buf={0:-5}, got_new_session=0, init=1, ret=-1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [={0:0}, blastFlag=0, buf={0:-5}, got_new_session=0, init=1, ret=-1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [={0:0}, blastFlag=0, buf={0:-5}, got_new_session=0, init=1, ret=-1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [={0:0}, blastFlag=0, buf={0:-5}, got_new_session=0, init=1, ret=-1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [={0:0}, blastFlag=0, buf={0:-5}, got_new_session=0, init=1, ret=-1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [={0:0}, blastFlag=0, buf={0:-5}, got_new_session=0, init=1, ret=-1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1193] COND TRUE s->state == 8464 [L1349] s->shutdown = 0 [L1350] ret = __VERIFIER_nondet_int() [L1351] COND TRUE blastFlag == 0 [L1352] blastFlag = 1 VAL [={0:0}, blastFlag=1, buf={0:-5}, got_new_session=0, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1356] COND FALSE !(ret <= 0) [L1361] got_new_session = 1 [L1362] s->state = 8496 [L1363] s->init_num = 0 VAL [={0:0}, blastFlag=1, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1696] EXPR s->s3 [L1696] EXPR (s->s3)->tmp.reuse_message VAL [={0:0}, (s->s3)->tmp.reuse_message=4294967329, blastFlag=1, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->s3={-10:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1696] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1725] skip = 0 VAL [={0:0}, blastFlag=1, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1166] COND TRUE 1 [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [={0:0}, blastFlag=1, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [={0:0}, blastFlag=1, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [={0:0}, blastFlag=1, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [={0:0}, blastFlag=1, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [={0:0}, blastFlag=1, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [={0:0}, blastFlag=1, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [={0:0}, blastFlag=1, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [={0:0}, blastFlag=1, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [={0:0}, blastFlag=1, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1193] COND FALSE !(s->state == 8464) [L1196] EXPR s->state VAL [={0:0}, blastFlag=1, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1196] COND FALSE !(s->state == 8465) [L1199] EXPR s->state VAL [={0:0}, blastFlag=1, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1199] COND FALSE !(s->state == 8466) [L1202] EXPR s->state VAL [={0:0}, blastFlag=1, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1202] COND TRUE s->state == 8496 [L1367] ret = __VERIFIER_nondet_int() [L1368] COND TRUE blastFlag == 1 [L1369] blastFlag = 2 VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1373] COND FALSE !(ret <= 0) [L1378] s->hit [L1378] COND TRUE s->hit [L1379] s->state = 8656 [L1383] s->init_num = 0 VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1696] EXPR s->s3 [L1696] EXPR (s->s3)->tmp.reuse_message VAL [={0:0}, (s->s3)->tmp.reuse_message=4294967329, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->s3={-10:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1696] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1725] skip = 0 VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1166] COND TRUE 1 [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1193] COND FALSE !(s->state == 8464) [L1196] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1196] COND FALSE !(s->state == 8465) [L1199] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1199] COND FALSE !(s->state == 8466) [L1202] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1202] COND FALSE !(s->state == 8496) [L1205] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1205] COND FALSE !(s->state == 8497) [L1208] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1208] COND FALSE !(s->state == 8512) [L1211] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1211] COND FALSE !(s->state == 8513) [L1214] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1214] COND FALSE !(s->state == 8528) [L1217] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1217] COND FALSE !(s->state == 8529) [L1220] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1220] COND FALSE !(s->state == 8544) [L1223] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1223] COND FALSE !(s->state == 8545) [L1226] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1226] COND FALSE !(s->state == 8560) [L1229] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1229] COND FALSE !(s->state == 8561) [L1232] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1232] COND FALSE !(s->state == 8448) [L1235] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1235] COND FALSE !(s->state == 8576) [L1238] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1238] COND FALSE !(s->state == 8577) [L1241] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1241] COND FALSE !(s->state == 8592) [L1244] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1244] COND FALSE !(s->state == 8593) [L1247] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1247] COND FALSE !(s->state == 8608) [L1250] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1250] COND FALSE !(s->state == 8609) [L1253] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1253] COND FALSE !(s->state == 8640) [L1256] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1256] COND FALSE !(s->state == 8641) [L1259] EXPR s->state VAL [={0:0}, blastFlag=2, buf={0:-5}, got_new_session=1, init=1, ret=1, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1259] COND TRUE s->state == 8656 [L1583] EXPR s->session [L1583] EXPR s->s3 [L1583] EXPR (s->s3)->tmp.new_cipher [L1583] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1584] tmp___9 = __VERIFIER_nondet_int() [L1585] COND FALSE !(! tmp___9) [L1591] ret = __VERIFIER_nondet_int() [L1592] COND TRUE blastFlag == 2 [L1593] blastFlag = 5 VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0, tmp___9=8] [L1597] COND FALSE !(ret <= 0) [L1602] s->state = 8672 [L1603] s->init_num = 0 [L1604] tmp___10 = __VERIFIER_nondet_int() [L1605] COND FALSE !(! tmp___10) VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1696] EXPR s->s3 [L1696] EXPR (s->s3)->tmp.reuse_message VAL [={0:0}, (s->s3)->tmp.reuse_message=4294967329, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->s3={-10:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1696] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1725] skip = 0 VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1166] COND TRUE 1 [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1193] COND FALSE !(s->state == 8464) [L1196] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1196] COND FALSE !(s->state == 8465) [L1199] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1199] COND FALSE !(s->state == 8466) [L1202] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1202] COND FALSE !(s->state == 8496) [L1205] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1205] COND FALSE !(s->state == 8497) [L1208] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1208] COND FALSE !(s->state == 8512) [L1211] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1211] COND FALSE !(s->state == 8513) [L1214] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1214] COND FALSE !(s->state == 8528) [L1217] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1217] COND FALSE !(s->state == 8529) [L1220] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1220] COND FALSE !(s->state == 8544) [L1223] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1223] COND FALSE !(s->state == 8545) [L1226] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1226] COND FALSE !(s->state == 8560) [L1229] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1229] COND FALSE !(s->state == 8561) [L1232] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1232] COND FALSE !(s->state == 8448) [L1235] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1235] COND FALSE !(s->state == 8576) [L1238] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1238] COND FALSE !(s->state == 8577) [L1241] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1241] COND FALSE !(s->state == 8592) [L1244] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1244] COND FALSE !(s->state == 8593) [L1247] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1247] COND FALSE !(s->state == 8608) [L1250] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1250] COND FALSE !(s->state == 8609) [L1253] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1253] COND FALSE !(s->state == 8640) [L1256] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1256] COND FALSE !(s->state == 8641) [L1259] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1259] COND FALSE !(s->state == 8656) [L1262] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1262] COND FALSE !(s->state == 8657) [L1265] EXPR s->state VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=9, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1265] COND TRUE s->state == 8672 [L1614] ret = __VERIFIER_nondet_int() [L1615] COND FALSE !(blastFlag == 4) VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=11, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1618] COND TRUE blastFlag == 5 VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=11, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] [L1737] reach_error() VAL [={0:0}, blastFlag=5, buf={0:-5}, got_new_session=1, init=1, ret=11, s={-14:0}, s={-14:0}, s->info_callback={4294967337:4294967321}, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=8] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 109 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 60.4s, OverallIterations: 24, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 54.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 23 mSolverCounterUnknown, 971 SdHoareTripleChecker+Valid, 53.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 971 mSDsluCounter, 7738 SdHoareTripleChecker+Invalid, 52.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5159 mSDsCounter, 193 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3858 IncrementalHoareTripleChecker+Invalid, 4074 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 193 mSolverCounterUnsat, 2960 mSDtfsCounter, 3858 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 400 GetRequests, 319 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=702occurred in iteration=23, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 23 MinimizatonAttempts, 638 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1728 NumberOfCodeBlocks, 1728 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1734 ConstructedInterpolants, 0 QuantifiedInterpolants, 4655 SizeOfPredicates, 0 NumberOfNonLiveVariables, 699 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 27 InterpolantComputations, 23 PerfectInterpolantSequences, 528/672 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 [2021-11-20 23:33:57,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/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_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a1fff1f2750aedbe7119b44ad3cdc8a2dbfa05ad8147a422ae9aeb0054d6e253 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:33:59,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:33:59,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:33:59,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:33:59,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:33:59,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:33:59,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:33:59,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:33:59,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:33:59,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:33:59,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:33:59,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:33:59,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:33:59,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:33:59,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:33:59,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:33:59,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:33:59,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:33:59,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:33:59,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:33:59,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:33:59,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:33:59,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:33:59,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:33:59,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:33:59,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:33:59,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:33:59,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:33:59,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:33:59,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:33:59,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:33:59,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:33:59,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:33:59,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:33:59,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:33:59,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:33:59,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:33:59,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:33:59,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:33:59,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:33:59,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:33:59,865 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-20 23:33:59,909 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:33:59,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:33:59,910 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:33:59,910 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:33:59,911 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:33:59,912 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:33:59,912 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:33:59,912 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:33:59,912 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:33:59,913 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:33:59,914 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:33:59,914 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:33:59,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:33:59,916 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:33:59,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:33:59,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:33:59,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:33:59,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:33:59,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:33:59,917 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 23:33:59,917 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 23:33:59,917 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:33:59,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:33:59,918 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:33:59,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:33:59,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:33:59,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 23:33:59,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:33:59,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:33:59,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:33:59,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:33:59,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:33:59,920 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-20 23:33:59,920 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 23:33:59,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:33:59,921 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:33:59,921 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:33:59,921 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_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1fff1f2750aedbe7119b44ad3cdc8a2dbfa05ad8147a422ae9aeb0054d6e253 [2021-11-20 23:34:00,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:34:00,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:34:00,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:34:00,338 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:34:00,338 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:34:00,340 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c [2021-11-20 23:34:00,418 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/data/8fa31a3e9/0d85b2e5e53742c6af4d6456bb155a31/FLAG5b422a04a [2021-11-20 23:34:01,105 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:34:01,106 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c [2021-11-20 23:34:01,135 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/data/8fa31a3e9/0d85b2e5e53742c6af4d6456bb155a31/FLAG5b422a04a [2021-11-20 23:34:01,271 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/data/8fa31a3e9/0d85b2e5e53742c6af4d6456bb155a31 [2021-11-20 23:34:01,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:34:01,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:34:01,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:34:01,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:34:01,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:34:01,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:34:01" (1/1) ... [2021-11-20 23:34:01,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12faa1c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:01, skipping insertion in model container [2021-11-20 23:34:01,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:34:01" (1/1) ... [2021-11-20 23:34:01,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:34:01,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:34:01,852 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_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c[72913,72926] [2021-11-20 23:34:01,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:34:01,878 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:34:01,999 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_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c[72913,72926] [2021-11-20 23:34:02,002 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:34:02,021 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:34:02,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:02 WrapperNode [2021-11-20 23:34:02,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:34:02,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:34:02,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:34:02,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:34:02,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:02" (1/1) ... [2021-11-20 23:34:02,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:02" (1/1) ... [2021-11-20 23:34:02,120 INFO L137 Inliner]: procedures = 35, calls = 223, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 757 [2021-11-20 23:34:02,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:34:02,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:34:02,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:34:02,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:34:02,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:02" (1/1) ... [2021-11-20 23:34:02,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:02" (1/1) ... [2021-11-20 23:34:02,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:02" (1/1) ... [2021-11-20 23:34:02,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:02" (1/1) ... [2021-11-20 23:34:02,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:02" (1/1) ... [2021-11-20 23:34:02,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:02" (1/1) ... [2021-11-20 23:34:02,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:02" (1/1) ... [2021-11-20 23:34:02,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:34:02,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:34:02,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:34:02,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:34:02,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:02" (1/1) ... [2021-11-20 23:34:02,280 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:34:02,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:34:02,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:34:02,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:34:02,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:34:02,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 23:34:02,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:34:02,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-20 23:34:02,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:34:02,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:34:02,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:34:02,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:34:02,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-20 23:34:02,533 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:34:02,534 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:34:02,551 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 23:34:06,968 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-11-20 23:34:06,968 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-11-20 23:34:06,969 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:34:06,977 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:34:06,978 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 23:34:06,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:34:06 BoogieIcfgContainer [2021-11-20 23:34:06,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:34:06,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:34:06,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:34:06,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:34:06,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:34:01" (1/3) ... [2021-11-20 23:34:06,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e6a448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:34:06, skipping insertion in model container [2021-11-20 23:34:06,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:02" (2/3) ... [2021-11-20 23:34:06,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e6a448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:34:06, skipping insertion in model container [2021-11-20 23:34:06,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:34:06" (3/3) ... [2021-11-20 23:34:06,989 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.01.i.cil-2.c [2021-11-20 23:34:06,994 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:34:06,994 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:34:07,040 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:34:07,048 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 23:34:07,048 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:34:07,067 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:34:07,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-20 23:34:07,077 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:34:07,078 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:34:07,079 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:34:07,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:34:07,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1430116946, now seen corresponding path program 1 times [2021-11-20 23:34:07,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:34:07,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81786557] [2021-11-20 23:34:07,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:34:07,098 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:34:07,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:34:07,099 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:34:07,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 23:34:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:34:07,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:34:07,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:34:07,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:34:07,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:34:08,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:34:08,055 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:34:08,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [81786557] [2021-11-20 23:34:08,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [81786557] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:34:08,057 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:34:08,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-20 23:34:08,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719947861] [2021-11-20 23:34:08,060 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:34:08,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:34:08,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:34:08,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:34:08,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:34:08,097 INFO L87 Difference]: Start difference. First operand has 147 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:34:08,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:34:08,256 INFO L93 Difference]: Finished difference Result 551 states and 928 transitions. [2021-11-20 23:34:08,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:34:08,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 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 47 [2021-11-20 23:34:08,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:34:08,272 INFO L225 Difference]: With dead ends: 551 [2021-11-20 23:34:08,272 INFO L226 Difference]: Without dead ends: 375 [2021-11-20 23:34:08,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:34:08,279 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 561 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:34:08,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [561 Valid, 663 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:34:08,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2021-11-20 23:34:08,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2021-11-20 23:34:08,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 372 states have (on average 1.5188172043010753) internal successors, (565), 372 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:34:08,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 565 transitions. [2021-11-20 23:34:08,356 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 565 transitions. Word has length 47 [2021-11-20 23:34:08,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:34:08,357 INFO L470 AbstractCegarLoop]: Abstraction has 373 states and 565 transitions. [2021-11-20 23:34:08,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:34:08,358 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 565 transitions. [2021-11-20 23:34:08,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-20 23:34:08,362 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:34:08,363 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:34:08,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-20 23:34:08,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:34:08,579 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:34:08,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:34:08,580 INFO L85 PathProgramCache]: Analyzing trace with hash 315021975, now seen corresponding path program 1 times [2021-11-20 23:34:08,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:34:08,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784158428] [2021-11-20 23:34:08,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:34:08,582 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:34:08,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:34:08,583 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:34:08,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 23:34:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:34:08,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:34:08,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:34:09,090 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:34:09,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:34:09,395 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:34:09,395 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:34:09,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784158428] [2021-11-20 23:34:09,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784158428] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:34:09,396 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:34:09,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-20 23:34:09,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232318605] [2021-11-20 23:34:09,396 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:34:09,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:34:09,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:34:09,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:34:09,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:34:09,399 INFO L87 Difference]: Start difference. First operand 373 states and 565 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:34:09,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:34:09,548 INFO L93 Difference]: Finished difference Result 855 states and 1302 transitions. [2021-11-20 23:34:09,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:34:09,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 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 65 [2021-11-20 23:34:09,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:34:09,555 INFO L225 Difference]: With dead ends: 855 [2021-11-20 23:34:09,556 INFO L226 Difference]: Without dead ends: 613 [2021-11-20 23:34:09,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:34:09,566 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 289 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:34:09,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 726 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:34:09,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-11-20 23:34:09,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 611. [2021-11-20 23:34:09,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 610 states have (on average 1.5163934426229508) internal successors, (925), 610 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:34:09,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 925 transitions. [2021-11-20 23:34:09,645 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 925 transitions. Word has length 65 [2021-11-20 23:34:09,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:34:09,645 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 925 transitions. [2021-11-20 23:34:09,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:34:09,646 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 925 transitions. [2021-11-20 23:34:09,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-20 23:34:09,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:34:09,659 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:34:09,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:34:09,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:34:09,871 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:34:09,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:34:09,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1540639451, now seen corresponding path program 1 times [2021-11-20 23:34:09,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:34:09,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932274689] [2021-11-20 23:34:09,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:34:09,874 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:34:09,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:34:09,875 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:34:09,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 23:34:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:34:10,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 23:34:10,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:34:10,576 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 23:34:10,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:34:11,056 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 23:34:11,058 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:34:11,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932274689] [2021-11-20 23:34:11,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932274689] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:34:11,059 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:34:11,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-20 23:34:11,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669342074] [2021-11-20 23:34:11,060 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:34:11,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:34:11,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:34:11,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:34:11,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:34:11,063 INFO L87 Difference]: Start difference. First operand 611 states and 925 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:34:11,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:34:11,191 INFO L93 Difference]: Finished difference Result 1093 states and 1657 transitions. [2021-11-20 23:34:11,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:34:11,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-20 23:34:11,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:34:11,198 INFO L225 Difference]: With dead ends: 1093 [2021-11-20 23:34:11,199 INFO L226 Difference]: Without dead ends: 613 [2021-11-20 23:34:11,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:34:11,214 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 296 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:34:11,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 559 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:34:11,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-11-20 23:34:11,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2021-11-20 23:34:11,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 612 states have (on average 1.5049019607843137) internal successors, (921), 612 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:34:11,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 921 transitions. [2021-11-20 23:34:11,247 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 921 transitions. Word has length 125 [2021-11-20 23:34:11,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:34:11,248 INFO L470 AbstractCegarLoop]: Abstraction has 613 states and 921 transitions. [2021-11-20 23:34:11,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:34:11,248 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 921 transitions. [2021-11-20 23:34:11,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-20 23:34:11,250 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:34:11,251 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:34:11,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:34:11,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:34:11,467 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:34:11,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:34:11,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1760202500, now seen corresponding path program 1 times [2021-11-20 23:34:11,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:34:11,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1872049654] [2021-11-20 23:34:11,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:34:11,469 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:34:11,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:34:11,473 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:34:11,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 23:34:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:34:11,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-20 23:34:11,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:34:11,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 23:34:11,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 23:34:12,164 INFO L354 Elim1Store]: treesize reduction 96, result has 16.5 percent of original size [2021-11-20 23:34:12,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 22 [2021-11-20 23:34:12,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:12,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:12,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:12,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2021-11-20 23:34:12,311 INFO L354 Elim1Store]: treesize reduction 33, result has 21.4 percent of original size [2021-11-20 23:34:12,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 13 [2021-11-20 23:34:12,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:34:12,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2021-11-20 23:34:12,373 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 37 treesize of output 25 [2021-11-20 23:34:12,381 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 22 treesize of output 10 [2021-11-20 23:34:12,800 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2021-11-20 23:34:12,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:34:13,512 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2021-11-20 23:34:13,513 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:34:13,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1872049654] [2021-11-20 23:34:13,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1872049654] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:34:13,513 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:34:13,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 23:34:13,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50011425] [2021-11-20 23:34:13,513 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:34:13,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 23:34:13,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:34:13,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 23:34:13,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:34:13,515 INFO L87 Difference]: Start difference. First operand 613 states and 921 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:34:15,536 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:34:17,554 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:34:20,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:34:20,708 INFO L93 Difference]: Finished difference Result 1223 states and 1838 transitions. [2021-11-20 23:34:20,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:34:20,710 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 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 128 [2021-11-20 23:34:20,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:34:20,714 INFO L225 Difference]: With dead ends: 1223 [2021-11-20 23:34:20,714 INFO L226 Difference]: Without dead ends: 613 [2021-11-20 23:34:20,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 247 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-20 23:34:20,716 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 5 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:34:20,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 931 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 2 Unknown, 62 Unchecked, 7.1s Time] [2021-11-20 23:34:20,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-11-20 23:34:20,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2021-11-20 23:34:20,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 612 states have (on average 1.5032679738562091) internal successors, (920), 612 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:34:20,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 920 transitions. [2021-11-20 23:34:20,741 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 920 transitions. Word has length 128 [2021-11-20 23:34:20,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:34:20,741 INFO L470 AbstractCegarLoop]: Abstraction has 613 states and 920 transitions. [2021-11-20 23:34:20,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:34:20,741 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 920 transitions. [2021-11-20 23:34:20,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-20 23:34:20,743 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:34:20,743 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:34:20,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-20 23:34:20,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:34:20,959 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:34:20,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:34:20,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1330544194, now seen corresponding path program 1 times [2021-11-20 23:34:20,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:34:20,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364756594] [2021-11-20 23:34:20,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:34:20,960 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:34:20,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:34:20,961 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:34:20,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-20 23:34:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:34:21,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 23:34:21,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:34:21,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 23:34:21,475 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-20 23:34:21,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-20 23:34:21,822 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-20 23:34:21,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 10 [2021-11-20 23:34:22,080 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-20 23:34:22,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:34:22,526 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-20 23:34:22,526 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:34:22,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364756594] [2021-11-20 23:34:22,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364756594] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:34:22,527 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:34:22,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2021-11-20 23:34:22,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792617736] [2021-11-20 23:34:22,527 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:34:22,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 23:34:22,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:34:22,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 23:34:22,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:34:22,529 INFO L87 Difference]: Start difference. First operand 613 states and 920 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:34:24,546 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:34:26,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:34:26,623 INFO L93 Difference]: Finished difference Result 1420 states and 2131 transitions. [2021-11-20 23:34:26,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:34:26,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 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 128 [2021-11-20 23:34:26,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:34:26,631 INFO L225 Difference]: With dead ends: 1420 [2021-11-20 23:34:26,631 INFO L226 Difference]: Without dead ends: 817 [2021-11-20 23:34:26,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:34:26,633 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 80 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:34:26,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 568 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 187 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2021-11-20 23:34:26,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2021-11-20 23:34:26,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 713. [2021-11-20 23:34:26,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 712 states have (on average 1.5337078651685394) internal successors, (1092), 712 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:34:26,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1092 transitions. [2021-11-20 23:34:26,669 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1092 transitions. Word has length 128 [2021-11-20 23:34:26,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:34:26,671 INFO L470 AbstractCegarLoop]: Abstraction has 713 states and 1092 transitions. [2021-11-20 23:34:26,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:34:26,671 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1092 transitions. [2021-11-20 23:34:26,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-20 23:34:26,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:34:26,677 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:34:26,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-20 23:34:26,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:34:26,888 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:34:26,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:34:26,889 INFO L85 PathProgramCache]: Analyzing trace with hash -545938624, now seen corresponding path program 1 times [2021-11-20 23:34:26,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:34:26,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1680615276] [2021-11-20 23:34:26,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:34:26,890 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:34:26,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:34:26,890 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:34:26,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-20 23:34:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 23:34:27,638 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 23:34:28,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 23:34:28,807 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-20 23:34:28,807 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 23:34:28,808 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 23:34:28,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-20 23:34:29,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:34:29,013 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-20 23:34:29,017 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 23:34:29,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:34:29 BoogieIcfgContainer [2021-11-20 23:34:29,213 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 23:34:29,214 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 23:34:29,214 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 23:34:29,214 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 23:34:29,215 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:34:06" (3/4) ... [2021-11-20 23:34:29,217 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-20 23:34:29,330 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-20 23:34:29,331 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 23:34:29,331 INFO L158 Benchmark]: Toolchain (without parser) took 28042.29ms. Allocated memory was 79.7MB in the beginning and 136.3MB in the end (delta: 56.6MB). Free memory was 42.2MB in the beginning and 60.2MB in the end (delta: -18.0MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2021-11-20 23:34:29,332 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 79.7MB. Free memory was 61.0MB in the beginning and 60.9MB in the end (delta: 69.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:34:29,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 731.03ms. Allocated memory is still 79.7MB. Free memory was 42.0MB in the beginning and 40.9MB in the end (delta: 1.1MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2021-11-20 23:34:29,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.69ms. Allocated memory is still 79.7MB. Free memory was 40.7MB in the beginning and 59.5MB in the end (delta: -18.8MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2021-11-20 23:34:29,333 INFO L158 Benchmark]: Boogie Preprocessor took 146.47ms. Allocated memory is still 79.7MB. Free memory was 59.5MB in the beginning and 52.2MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 23:34:29,333 INFO L158 Benchmark]: RCFGBuilder took 4712.28ms. Allocated memory was 79.7MB in the beginning and 111.1MB in the end (delta: 31.5MB). Free memory was 52.2MB in the beginning and 68.1MB in the end (delta: -15.9MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2021-11-20 23:34:29,334 INFO L158 Benchmark]: TraceAbstraction took 22231.56ms. Allocated memory was 111.1MB in the beginning and 136.3MB in the end (delta: 25.2MB). Free memory was 68.1MB in the beginning and 80.1MB in the end (delta: -12.0MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. [2021-11-20 23:34:29,335 INFO L158 Benchmark]: Witness Printer took 116.90ms. Allocated memory is still 136.3MB. Free memory was 80.1MB in the beginning and 60.2MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-20 23:34:29,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 79.7MB. Free memory was 61.0MB in the beginning and 60.9MB in the end (delta: 69.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 731.03ms. Allocated memory is still 79.7MB. Free memory was 42.0MB in the beginning and 40.9MB in the end (delta: 1.1MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.69ms. Allocated memory is still 79.7MB. Free memory was 40.7MB in the beginning and 59.5MB in the end (delta: -18.8MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 146.47ms. Allocated memory is still 79.7MB. Free memory was 59.5MB in the beginning and 52.2MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 4712.28ms. Allocated memory was 79.7MB in the beginning and 111.1MB in the end (delta: 31.5MB). Free memory was 52.2MB in the beginning and 68.1MB in the end (delta: -15.9MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. * TraceAbstraction took 22231.56ms. Allocated memory was 111.1MB in the beginning and 136.3MB in the end (delta: 25.2MB). Free memory was 68.1MB in the beginning and 80.1MB in the end (delta: -12.0MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. * Witness Printer took 116.90ms. Allocated memory is still 136.3MB. Free memory was 80.1MB in the beginning and 60.2MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 1737]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_server_data ; VAL [init=1, SSLv3_server_data={4:0}] [L1077] SSL *s ; [L1078] int tmp ; [L1082] s = malloc(sizeof(SSL)) [L1083] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1084] s->ctx = malloc(sizeof(SSL_CTX)) [L1085] s->session = malloc(sizeof(SSL_SESSION)) [L1086] s->state = 8464 [L1088] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1089] s->options = __VERIFIER_nondet_ulong() [L1090] s->verify_mode = __VERIFIER_nondet_int() [L1091] EXPR s->session [L1091] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1093] EXPR s->s3 [L1093] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1095] EXPR s->s3 [L1095] EXPR (s->s3)->tmp.new_cipher [L1095] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1096] COND FALSE !(__VERIFIER_nondet_int()) [L1102] s->cert = malloc(sizeof(struct cert_st)) [L1103] EXPR s->cert [L1103] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1106] CALL ssl3_accept(s) [L1112] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1113] unsigned long l ; [L1114] unsigned long Time ; [L1115] unsigned long tmp = __VERIFIER_nondet_long() ; [L1116] void (*cb)() ; [L1117] long num1 ; [L1118] int ret ; [L1119] int new_state ; [L1120] int state ; [L1121] int skip ; [L1122] int got_new_session ; [L1123] int tmp___1 = __VERIFIER_nondet_int() ; [L1124] int tmp___2 = __VERIFIER_nondet_int() ; [L1125] int tmp___3 ; [L1126] int tmp___4 ; [L1127] int tmp___5 ; [L1128] int tmp___6 ; [L1129] int tmp___7 ; [L1130] long tmp___8 = __VERIFIER_nondet_long() ; [L1131] int tmp___9 ; [L1132] int tmp___10 ; [L1133] int blastFlag ; [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] Time = tmp [L1141] cb = (void (*)())((void *)0) [L1142] ret = -1 [L1143] skip = 0 [L1144] got_new_session = 0 [L1145] EXPR s->info_callback VAL [={0:0}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={6:0}, s={6:0}, s->info_callback={0:-2147483648}, skip=0, SSLv3_server_data={4:0}, Time=8, tmp=8] [L1145] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1146] EXPR s->info_callback [L1146] cb = s->info_callback [L1150] EXPR s->in_handshake [L1150] s->in_handshake += 1 [L1151] COND FALSE !(tmp___1 & 12288) VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={6:0}, s={6:0}, skip=0, SSLv3_server_data={4:0}, Time=8, tmp=8, tmp___1=0] [L1160] EXPR s->cert VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={6:0}, s={6:0}, s->cert={9:0}, skip=0, SSLv3_server_data={4:0}, Time=8, tmp=8, tmp___1=0] [L1160] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1166] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={6:0}, s={6:0}, skip=0, SSLv3_server_data={4:0}, Time=8, tmp=8, tmp___1=0] [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={6:0}, s={6:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={6:0}, s={6:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={6:0}, s={6:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={6:0}, s={6:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={6:0}, s={6:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={6:0}, s={6:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={6:0}, s={6:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={6:0}, s={6:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={6:0}, s={6:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0] [L1193] COND TRUE s->state == 8464 [L1349] s->shutdown = 0 [L1350] ret = __VERIFIER_nondet_int() [L1351] COND TRUE blastFlag == 0 [L1352] blastFlag = 1 VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=0, init=1, ret=1073741824, s={6:0}, s={6:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0] [L1356] COND FALSE !(ret <= 0) [L1361] got_new_session = 1 [L1362] s->state = 8496 [L1363] s->init_num = 0 VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0] [L1696] EXPR s->s3 [L1696] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=-2147483648, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->s3={-2147483635:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0] [L1696] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1725] skip = 0 VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0] [L1166] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0] [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0] [L1193] COND FALSE !(s->state == 8464) [L1196] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0] [L1196] COND FALSE !(s->state == 8465) [L1199] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0] [L1199] COND FALSE !(s->state == 8466) [L1202] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0] [L1202] COND TRUE s->state == 8496 [L1367] ret = __VERIFIER_nondet_int() [L1368] COND TRUE blastFlag == 1 [L1369] blastFlag = 2 VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0] [L1373] COND FALSE !(ret <= 0) [L1378] s->hit VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->hit=-2147483648, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0] [L1378] COND TRUE s->hit [L1379] s->state = 8656 VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0] [L1383] s->init_num = 0 VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0] [L1696] EXPR s->s3 [L1696] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=-2147483648, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->s3={-2147483635:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0] [L1696] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1725] skip = 0 VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0] [L1166] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0] [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1193] COND FALSE !(s->state == 8464) [L1196] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1196] COND FALSE !(s->state == 8465) [L1199] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1199] COND FALSE !(s->state == 8466) [L1202] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1202] COND FALSE !(s->state == 8496) [L1205] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1205] COND FALSE !(s->state == 8497) [L1208] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1208] COND FALSE !(s->state == 8512) [L1211] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1211] COND FALSE !(s->state == 8513) [L1214] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1214] COND FALSE !(s->state == 8528) [L1217] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1217] COND FALSE !(s->state == 8529) [L1220] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1220] COND FALSE !(s->state == 8544) [L1223] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1223] COND FALSE !(s->state == 8545) [L1226] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1226] COND FALSE !(s->state == 8560) [L1229] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1229] COND FALSE !(s->state == 8561) [L1232] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1232] COND FALSE !(s->state == 8448) [L1235] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1235] COND FALSE !(s->state == 8576) [L1238] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1238] COND FALSE !(s->state == 8577) [L1241] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1241] COND FALSE !(s->state == 8592) [L1244] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1244] COND FALSE !(s->state == 8593) [L1247] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1247] COND FALSE !(s->state == 8608) [L1250] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1250] COND FALSE !(s->state == 8609) [L1253] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1253] COND FALSE !(s->state == 8640) [L1256] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1256] COND FALSE !(s->state == 8641) [L1259] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0] [L1259] COND TRUE s->state == 8656 [L1583] EXPR s->session [L1583] EXPR s->s3 [L1583] EXPR (s->s3)->tmp.new_cipher [L1583] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1584] tmp___9 = __VERIFIER_nondet_int() [L1585] COND FALSE !(! tmp___9) [L1591] ret = __VERIFIER_nondet_int() [L1592] COND TRUE blastFlag == 2 [L1593] blastFlag = 5 VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___9=2147483648] [L1597] COND FALSE !(ret <= 0) [L1602] s->state = 8672 [L1603] s->init_num = 0 [L1604] tmp___10 = __VERIFIER_nondet_int() [L1605] COND FALSE !(! tmp___10) VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1696] EXPR s->s3 [L1696] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=-2147483648, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->s3={-2147483635:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1696] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1725] skip = 0 VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1166] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1193] COND FALSE !(s->state == 8464) [L1196] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1196] COND FALSE !(s->state == 8465) [L1199] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1199] COND FALSE !(s->state == 8466) [L1202] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1202] COND FALSE !(s->state == 8496) [L1205] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1205] COND FALSE !(s->state == 8497) [L1208] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1208] COND FALSE !(s->state == 8512) [L1211] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1211] COND FALSE !(s->state == 8513) [L1214] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1214] COND FALSE !(s->state == 8528) [L1217] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1217] COND FALSE !(s->state == 8529) [L1220] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1220] COND FALSE !(s->state == 8544) [L1223] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1223] COND FALSE !(s->state == 8545) [L1226] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1226] COND FALSE !(s->state == 8560) [L1229] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1229] COND FALSE !(s->state == 8561) [L1232] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1232] COND FALSE !(s->state == 8448) [L1235] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1235] COND FALSE !(s->state == 8576) [L1238] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1238] COND FALSE !(s->state == 8577) [L1241] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1241] COND FALSE !(s->state == 8592) [L1244] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1244] COND FALSE !(s->state == 8593) [L1247] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1247] COND FALSE !(s->state == 8608) [L1250] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1250] COND FALSE !(s->state == 8609) [L1253] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1253] COND FALSE !(s->state == 8640) [L1256] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1256] COND FALSE !(s->state == 8641) [L1259] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1259] COND FALSE !(s->state == 8656) [L1262] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1262] COND FALSE !(s->state == 8657) [L1265] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={6:0}, s={6:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1265] COND TRUE s->state == 8672 [L1614] ret = __VERIFIER_nondet_int() [L1615] COND FALSE !(blastFlag == 4) VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=10, s={6:0}, s={6:0}, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1618] COND TRUE blastFlag == 5 VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=10, s={6:0}, s={6:0}, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1737] reach_error() VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=10, s={6:0}, s={6:0}, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 147 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.0s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 1231 SdHoareTripleChecker+Valid, 11.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1231 mSDsluCounter, 3447 SdHoareTripleChecker+Invalid, 10.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 62 IncrementalHoareTripleChecker+Unchecked, 2054 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 485 IncrementalHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 1393 mSDtfsCounter, 485 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 978 GetRequests, 959 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=713occurred in iteration=5, InterpolantAutomatonStates: 22, 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, 5 MinimizatonAttempts, 108 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 621 NumberOfCodeBlocks, 621 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 976 ConstructedInterpolants, 1 QuantifiedInterpolants, 2280 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1352 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 636/636 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-20 23:34:29,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7296a9-b89b-4e82-84bb-d0713ecb89fe/bin/utaipan-TEXQjIfE4P/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE